Linear Technology DC2312A-A, DC2312A-B Demo Manual

DESCRIPTION

DEMO MANUAL

DC2312A-A/DC2312A-B

LTC3882EUJ-1 High Efficiency

Step-Down DC/DC Converter

with Power System Management

Demonstration circuit 2312A is a high current, high efficiency, dual phase synchronous buck converter featuring the LTC3882EUJ-1, a dual output voltage mode controller with the additional features of dif ferential V

sense and dedicated PGOOD output on

OUT

both channels, compared to LTC3882. The LTC3882-1 has the PMBus interface and power system manage ment functions.

There are two versions of the boards available:

n

DC2312A-A: Dual phase dual output configuration. De-

V

fault output setting

n

DC2312A-B: Dual phase single output configuration. Default output setting V

= 1.5V/35A, V

OUT0

= 1.0V/70A.

= 1.0V/35A.

OUT1

The DC2312A powers up to default settings and produces power

based

on configuration resistors or with its nonvolatile memory without the need for any serial bus communication. This allows easy evaluation of the

DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay™ onto your PC and use LT C’s

2

-

C/SMBus/PMBus Dongle DC1613A to connect to the

I board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration settings within

-

its onboard EEPROM, along with viewing telemetry pa rameters that include

voltage, current, temperature and

fault status.

GUI Software LTpowerPlay Download

The software can be downloaded from:

http://www.linear.com/LTpowerPlay

Design files for this circuit board are available at

http://www.linear.com/demo/DC2312A

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.

-

PERFORMANCE SUMMARY

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

IN

V

OUT0

I

OUT0

V

OUT1

I

OUT1

V

OUT0

I

OUT0

F

SW

F

SW

EFFICIENCY Full Load Efficiency (-A Version) V

*Note: The DC2312A uses 2.5V-rated low ESR PosCAP (Part No. 2R5TPE470M7) as output capacitors for optimized load transient performance. If > 2.0V V

**Note: When continuously running at full load, forced air flow is needed.

Input Supply Range 7 12 14 V

Output Voltage Range (-A Version) I

Output Current Range (-A Version) 0 35** A

Output Voltage Range (-A Version) I

Output Current Range (-A Version) 0 35** A

Output Voltage Range (-B Version) I

Output Current Range (-B Version) 0 70** A

Factory Default Switching (-A Version) 500 kHz

Factory Default Switching (-B Version) 450 kHz

Full Load Efficiency (-B Version) V

is needed, 4V or 6.3V-rated output capacitors should be used.

OUT

Specifications are at TA = 25°C

= 0A to 35A, VIN = 7V to 14V 0.5 1.5 2.0* V

OUT0

= 0A to 35A, VIN = 7V to 14V 0.5 1.0 2.0* V

OUT1

= 0A to 70A, VIN = 7V to 14V 0.5 1.0 2.0* V

OUT0

V

OUT0

OUT1

OUT0

= 1.5V, I

= 1.0V, I

= 35A, See Figure 5 90.6 %

OUT0

= 35A, See Figure 5 88.0 %

OUT1

= 70A, See Figure 6 87.8 %

OUT0

dc2312afb

1

DEMO MANUAL

DC2312A F01

DC2312A-A/DC2312A-B

QUICK START PROCEDURE

Demonstration circuit 2312A makes it easy to set up to evaluate the performance of the LTC3882-1. Refer to Figures 2 and 3 for proper measurement equipment setup and follow the procedure below.

NOTE. When measuring the input or output voltage ripple, care must be taken to avoid a long ground lead on the oscilloscope probe. Measure the output voltage ripple by touching the probe tip directly across the C13 or C39. See Figure 4 for proper scope probe technique.

1. Make sure jumpers are in the following positions:

DC2312A-A Version

JUMPER POSITION FUNCTION

JP1 NC Untie GPIO0B to GPIO1B

JP2 NC Untie RUN0 to RUN1

JP4 ON External 5V VDR for DrMOS

JP6 ON External 5V V

DC2312A-B Version

JUMPER POSITION FUNCTION

JP1 C Tie GPIO0B to GPIO1B

JP2 C Tie RUN0 to RUN1

JP4 ON External 5V VDR for DrMOS

JP6 ON External 5V V

for LTC3882-1

CC

for LTC3882-1

CC

2. With power off, connect the input power supply to VIN and GND. Connect active load to the output.

3. Make sure both RUN switches are OFF.

4. Turn on the power at the input.

Note. Make sure that the input voltage does not ex

-

ceed15V.

Turn on RUN switches as desired.

5.

+

6. Check for the correct output voltage from V V

OUT0

–

and from V

OUT1

+

to V

OUT1

–

.

OUT0

to

Note. If there is no output, temporarily disconnect the

load to make sure that the load is not set too high.

7. Once the proper output voltage is established, adjust the loads within the operating range and observe the output voltage regulation, ripple voltage, efﬁciency and other parameters.

8. Connect the dongle and control the output voltages from the GUI. See LTpowerPlay Quick Start Procedure session for details.

CONNECTING A PC TO DC2312A

You can use a PC to reconfigure the power management features of the LTC3882-1 such as: nominal V set points, OV/UV limits, temperature fault limits, sequenc-

,

ing parameters

the fault log, fault responses, GPIO and

USB CABLE

USB TO I2C/PMBUS

DONGLE DC1613A

2

other functionality. The DC1613A dongle may be plugged

, margin

OUT

in regardless of whether or not V be hot plugged.

+12V

POWER SUPPLY

V

IN

12-PIN

CONNECTOR

Figure1. Demo Setup with PC

LTC3882-1

DEMO BOARD

DC2312A

V

OUT0

OUT1

LOAD

is present. Dongle can

IN

dc2312afb

QUICK START PROCEDURE

+

–

+

–

DEMO MANUAL

DC2312A-A/DC2312A-B

–

I

OUT0

+

A

I

IN

+

–

+

POWER

V

IN

SUPPLY

–

SHUNT

V

OUT0

LOAD

V

OUT0

+

–

DC1613A CONNECTOR

V

OUT1

I

OUT1

LOAD

SHUNT

Figure2. Power Test Setup for DC2312A-A

+

–

V

OUT1

DC2312A F02

dc2312afb

3

DEMO MANUAL

+

–

+

–

DC2312A-A/DC2312A-B

QUICK START PROCEDURE

–

I

OUT0_1

+

A

I

IN

+

–

+

POWER

V

IN

SUPPLY

–

SHUNT

V

OUT0

LOAD 1

V

OUT0

+

–

FOR BETTER THERMAL DISTRIBUTION, USE A PIECE OF LOW IMPEDANCE METAL TO CONNECT TOP LAYER V AND PULL CURRENT EVENLY FROM J3 TO J4 AND FROM J9 TO J8.

DC1613A CONNECTOR

OUT

COPPER

V

OUT0

I

OUT0_2

LOAD 2

SHUNT

Figure3. Power Test Setup for DC2312A-B

DC2312A F03

4

dc2312afb

QUICK START PROCEDURE

LOAD CURRENT (A)

051015202530

35

65707580859095

EFFICIENCY (%)

DC2312A F05

LOAD CURRENT (A)

0102030405060

7065707580

859095

EFFICIENCY (%)

DC2312A F06

DEMO MANUAL

DC2312A-A/DC2312A-B

COMBINING DC2312A WITH OTHER DIGITAL POWER DEMO BOARDS

The DC2312A may be plugged together in a multi-board array with other LT C power system management boards using J12 and J13.

MEASURING OUTPUT RIPPLE VOLTAGE

An accurate ripple measurement may be performed by using the configuration in Figure 4 across C13 or C39.

+ –

C

OUT

MEASURING EFFICIENCY (SEE FIGURES 5 AND 6)

To accurately measure efficiency of any configuration, do the following:

n

Set JP4 and JP6 on the “OFF” position.

n

Connect external 5V supply to VDR and VCC turrets and measure its input current.

n

Measure VIN across the input ceramic capacitor (C10, C6). Measure V

across the output ceramic capaci-

OUT

tor (C13, C39).

n

Add the loss from external 5V supply into the efficiency calculation.

Figure4. Measuring Output Voltage Ripple

V

= 1.5V

OUT0

= 1.0V

V

OUT1

Figure5. DC2312A-A, Typical Efficiency Curves, VIN = 12V, FSW = 500kHz, CCM

V

OUT

GND

V

OUT0

= 1.0V

Figure6. DC2312A-B, Typical Efficiency Curves, V

= 12V, FSW = 450kHz, CCM

IN

dc2312afb

5

DEMO MANUAL DC2312A-A/DC2312A-B

QUICK START PROCEDURE

Figure7. Load Transient Waveform DC2312A-A, VIN = 12V, V

Figure8. Load Transient Waveform DC2312A-A, V

= 12V, V

IN

= 1.5V, FSW = 500kHz, 0% to 25% (8.75A) Load Step

OUT0

= 1.0V, FSW = 500kHz, 0% to 25% (8.75A) Load Step

OUT1

Figure9. Load Transient Waveform DC2312A-B, V

6

= 12V, V

IN

= 1.0V, FSW = 450kHz, 0% to 25% (17.5A) Load Step

OUT0

dc2312afb

QUICK START PROCEDURE

DEMO MANUAL

DC2312A-A/DC2312A-B

Figure 10. Thermal Picture of DC2312A-A, VIN = 12V, V

Figure 11. Thermal Picture of DC2312A-B, V

= 1.5V/35A, V

OUT0

= 12V, V

IN

= 1.0V/35A, fSW = 500kHz, 400LFM Air Flow

OUT1

= 1.0V/70A, fSW = 450kHz, 400LFM Air Flow

OUT0

dc2312afb

7

DEMO MANUAL DC2312A-A/DC2312A-B

LTpowerPlay SOFTWARE GUI

LTpowerPlay is a powerful Windows-based development environment that power system management ICs, including the LTC3880, LTC3882/LTC3882-1, LTC3883, LTM4676A, LTC2974 and the LTC2978. The software supports a variety of different tasks. You can use LTpowerPlay to evaluate Linear Technology ICs by connecting to a demo board system. LTpowerPlay can also be used in an offline mode (with no hardware present) in order to build a multi-chip configuration file that can be saved and reloaded at a later time. LTpowerPlay provides unprecedented diagnostic and debug features. It becomes a valuable diagnostic tool during board bring-up to program or tweak the power management scheme in a system, or to diagnose power

supports Linear Technology

issues when bringing up rails. LTpowerPlay utilizes the DC1613A USB-to-SMBus controller to communicate with one of many potential targets, including the LTC3882-1’s DC2312A demo system, or a customer board. The soft ware also provides the software current with the latest set of device drivers and documentation. The LTpowerPlay software can be downloaded from:

http://www.linear.com/LTpowerPlay

To access technical support documents for LTC Digital Power Products LTpowerPlay menu.

an automatic update feature to keep

visit Help. View online help on the

-

8

Figure12. LTpowerPlay Main Interface

dc2312afb

LTpowerPlay QUICK START PROCEDURE

DEMO MANUAL

DC2312A-A/DC2312A-B

The following procedure describes how to use LTpowerPlay to monitor and change the settings of LTC3882-1 (taking DC2312A-A as an example).

1. Download and install the LTPowerPlay GUI:

http://www.linear.com/LTpowerPlay

2. Launch the LTpowerPlay GUI.

a. The GUI should automatically identify the DC2312A-A.

The system tree on the left hand side should look like this:

b. A blue message box shows for a few seconds in the

lower left hand corner, conﬁrming that the LTC3882-1 is communicating:

d. If you want to change the output voltage to a different

value, like 1.2V. In the Config tab, type in 1.2 in the VOUT_COMMAND box, like this:

c. In the Toolbar, click the “R” (RAM to PC) icon to

read the RAM from the LTC3882-1. This reads the conﬁguration from the RAM of LTC3882-1 and loads it into the GUI:

Then, click the “W” (PC to RAM) icon to write these

register values to the LTC3882-1. After ﬁnishing this step, you will see the output voltage will change to 1.2V.

If the write is successful, you will see the following

message:

e. You can save the changes into the NVM. In the tool

bar, click “RAM to NVM” button, as following:

f. Save the demo board conﬁguration to a (*.proj) ﬁle.

Click the Save icon and save the ﬁle with a new name.

dc2312afb

9

DEMO MANUAL DC2312A-A/DC2312A-B

PARTS LIST DC2312A-A

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 3 C5, C52, C53 CAP., X7R, 0.1µF, 16V, 10%, 0402 AVX, 0402YC104K AT2A

2 3 CF, COUT4, COUT5 CAP., X7R, 0.1uF, 16V, 10%, 0603 AVX, 0603YC104K AT2A

3 2 CFFW1, CFFW2 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220KAT2A

4 1 CIN1 CAP., X5R, 10µF, 25V, 20%, 1206 AVX, 12063D106M AT2A

5 2 COUT3, COUT7 CAP., X5R, 10µF, 16V, 10%, 0805 AVX, 0805YD106KAT2A

6 1 CIN3 CAP., TANT, 22µF, 35V, 20%, 7343 AVX, TCME226M035R0025

7 4 C6, C10, C33, C34 CAP., X5R, 22µF, 25V, 10%, 1210 MURATA, GRM32ER61E226KE15L

8 6 C1, C2, C8, C31, C35, C9 CAP., X5R, 1µF, 10V, 20%, 0402 MURATA, GRM155R61A105ME15D

9 1 C7 CAP., X5R, 2.2µF, 10V, 20%, 0402 Taiyo Yuden, LMK105BJ225MV-F

10 3 C47, C57, C58 CAP., X5R, 1µF, 16V, 10%, 0805 AVX, 0805YD105K AT2A

11 2 C3, C4 CAP., OS-CON, 330µF, 16V, 20%, F12 PANASONIC, 16SVP330M

12 2 C11, C36, CAP., X7R, 100nF, 16V, 10%, 0402 MURATA, GRM155R71C104KA88D

13 1 C45 CAP., X7R, 100nF, 16V, 10%, 0603 TDK, C1608X7R1C404KT000N

14 8 C12, C13, C14, C23, C38, C39, C40, C43 CAP., X5R, 100µF, 6.3V, 20%, 1206 MURATA, GRM31CR60J107ME39L

15 8 C15, C16, C26, C27, C17, C18, C19,

16

17 1 R1 RES., CHIP, 1, 1%, 0402 VISHAY, CRCW04021R00FKED

18 2 R2, R15 RES., CHIP, 24.9k, 1%, 0402 VISHAY, CRCW040224K9FKED

19 2 R93, R94 RES., CHIP, 200, 1%, 0603 VISHAY, CRCW0603200RFKED

20 3 R80, R81, R84 RES., CHIP, 127, 1%, 0603 VISHAY, CRCW0603127RFKEA

21 1 R87 RES., CHIP, 15.8k, 1%, 0603 VISHAY, CRCW060315K8FKEA

22 2 U1, U3 IC, HIGH FREQUENCY DrMOS MOUDLE FAIRCHILD, FDMF5820DC

23 1 U2 IC, LTC3882EUJ-1, QFN 6mm × 6mm LINEAR TECH., LTC3882EUJ-1#0134-1PBF

24 1 U5 IC EEPROM 2KBIT 400kHz 8 TSSOP MICROCHIP, 24LC025-I/ST

25 1 U6 IC., LTC3607EMSE, 16 Pin QFM 3mm × 3mm LINEAR TECH., LTC3607IMSE#PBF

26 1 R20 RES., CHIP, 53.6k, 1%, 0402 VISHAY, CRCW040253K6FKED

27 1 C50 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100K AT2A

28 1 C54 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D

29 2 C21, C55 CAP., X7R,680pF, 50V, 10%, 0402 MURATA, GRM155R71H681KA01D

2 L1, L2 IND., 0.17µH COOPER., FP1007R3-R17-R

C28 CAP., POSCAP, 470µF, 2.5V, D2E SIZE PANASONIC, EEFGX0E471R

10

dc2312afb

DEMO MANUAL

DC2312A-A/DC2312A-B

PARTS LIST DC2312A-A

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Additional Demo Board Circuit Components

1 0 D4, D7 (OPT) OPTIONAL

2 2 C20, C42 CAP., X5R, 0.22µF, 16V, 10%, 0402 TDK, C1005X5R1C224K

3 1 C22 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D

4 2 C29, C44 CAP., X7R, 0.01µF, 16V, 10%, 0603 AVX, 0603YC103K AT2A

5 2 C32, C48 CAP., X7R, 0.01µF, 16V, 10%, 0402 AVX, 0402YC103K AT2A

6 1 C30 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100KAT2A

7 2 D9, D11 LED, GREEN RECT CLEAR 0603 LITE ON, LTST-C193KGKT-5A

8 3 D5, D6, D10 LED, RED RECT CLEAR 0603 LITE ON, LTST-C193KRKT-5A

9 1 D8 DIODE, ULTRA LOW SCHOTTKY RECTIEIER NXP SEMI. PMEG2005AEL,315

10 2 L3, L4 IND., 4.7µH VISHAY, IHLP1616BZER4R7M11

11 2 Q1, Q6 TRANS, PNP GP 40V 200MA SC75-3 ON SEMI, MMBT3906TT 1G

12 1 Q3 MOSFET, SPEED SRS 30V 30A LFPAK RENESAS, RJK0305DPB-00#J0

13 4 Q19, Q20, Q21, Q22 MOSFET, P-CH 20V 5.9A SOT-23 VISHAY, Si2365EDS-T1-GE3

14 2 Q23, Q24 MOSFET, N-CH 60V 115MA SOT23 DIODES INC., 2N7002-7-F

15 1 RF RES., CHIP, 100, 1%, 0402 VISHAY, CRCW0402100RFKED

16 2 RPG1, RPG2 RES., CHIP, 100k, 1%, 0402 VISHAY, CRCW0402100KFKED

17 2 RSD1, RSD2 RES., CHIP, 5.1M, 5%, 0402 VISHAY, CRCW04025M10JNED

18 2 R5, R25 RES

19

20 1 R45 SENSE RES., 0.010Ω 1W 1% 2512 PANASONIC, ERJ-M1WSF10MU

21 1 R48 SENSE RES., 0.001Ω 1W 1% 2512 PNANSONIC, ERJ-M1WTF1M0U

22 0 R29, R30, R31, R32, R33, R34, R35, R36,

23 2 R7, R27 RES., CHIP, 2.67k, 1%, 0402 VISHAY, CRCW04022K67FKED

24 1 R9 RES., CHIP, 1.24k, 1%, 0402 VISHAY, CRCW04021K24FKED

25 13 R10, R11, R13, R14, R17, R19, R21, R28,

22 1 R12 RES., CHIP, 53.6k, 1%, 0402 VISHAY, CRCW040253K6FKED

23 4 R57, R58, R59, R60 RES., CHIP, 1k, 1%, 0402 VISHAY, CRCW04021K00FKED

24 2 R63, R65 RES., CHIP, 121k, 1%, 0402 VISHAY, CRCW0402121KFKED

25 2 R64, R66 RES., CHIP, 887k, 1%, 0402 VISHAY, CRCW0402887KFKED

26 2 R69, R70 RES., CHIP, 10, 1%, 0603 VISHAY, CRCW060310R0FKEA

27 2 R76, R77 RES., CHIP, 4.99k, 1%, 0603 VISHAY, CRCW06034K99FKEA

28 0 R62, R67, R98, R99, R101 OPTIONAL

29 0 R61, R100 OPTIONAL

30 2 R22, R46 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA

31 0 C37, C41 OPTIONAL

32 1 R18 RES., CHIP, 1.24k, 1%, 0402 VISHAY, CRCW04021K24FKED

33 0 R49 OPTIONAL

5 R16, R24, R71, R73, R83 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA

R37, R38, R39, R40, R53, R68, R72, R74, R75, R78, R82, R90, R91, R92 (OPT)

R41, R42, R43, R44, R86

., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED

OPTIONAL

RES., CHIP, 10k, 1%, 0603 VISHAY, CRCW060310K0FKEA

dc2312afb

11

DEMO MANUAL DC2312A-A/DC2312A-B

PARTS LIST DC2312A-A

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Hardware – For Demo Board Only

1 28 E1-E4, E7-E19, E21-E31 TESTPOINT, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0

2 2 J1, J2 BANANA SMALL KEYSTONE, 575-4

3 4 J3, J4, J8, J9 STUD, TESTPIN PEM, KFH-032-10

4 8 J3, J4, J8, J9 ( X2 ) NUT, BRASS 10-32 ANY #10-32M/S BR PL

5 4 J3, J4, J8, J9 RING, LUG #10 KEYSTONE, 8205

6 4 J3, J4, J8, J9 WASHER, TIN PLATED BRASS ANY #10 EXT BZ TN

7 4 JP1, JP2, JP4, JP6 HEADER, 3 PIN 0.079 SINGLE ROW WURTH, 620 003 111 21

8 4 JP1, JP2, JP4, JP6 SHUNT SAMTEC, 2SN-BK-G

9 2 SW3, SW4 CONNECTOR, SUB MINIATURE SLIDE

SWITCHES

10 3 J7, J10, J14 CONN., BNC PC MOUNT RECEPT. JACK,

50Ω, TF-4 POST

11 1 J11 HEADER 12POS 2MM STR DL PCB FCI, 98414-G06-12ULF

12 1 J12 CONN., HEADER, 2X7, 2mm, R/A (F) SULLINS, NPPN072FJFN-RC

13 1 J13 CONN., HEADER, 2X7, 2mm, R/A (M) MOLEX, 87760-1416

14 1 J15 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA

C&K.,JS202011CQN

CONNEX, 112404

12

dc2312afb

DEMO MANUAL

DC2312A-A/DC2312A-B

PARTS LIST DC2312A-B

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 3 C5, C52, C53 CAP., X7R, 0.1µF, 16V, 10%, 0402 AVX, 0402YC104KAT2A

2 3 CF, COUT4, COUT5 CAP., X7R, 0.1µF, 16V, 10%, 0603 AVX, 0603YC104KAT2A

3 2 CFFW1, CFFW2 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220K AT2A

4 1 CIN1 CAP., X5R, 10µF, 25V, 20%, 1206 AVX, 12063D106MAT2A

5 2 COUT3,COUT7 CAP., X5R, 10µF, 16V, 10%, 0805 AVX, 0805YD106KAT2A

6 1 CIN3 CAP., TANT, 22µF, 35V, 20%, 7343 AVX, TCME226M035R0025

7 4 C6, C10, C33, C34 CAP., X5R, 22µF, 25V, 10%, 1210 MURATA, GRM32ER61E226KE15L

8 6 C1, C2, C8, C31, C35, C9 CAP., X5R, 1µF, 10V, 20%, 0402 MURATA, GRM155R61A105ME15D

9 1 C7 CAP., X5R, 2.2µF, 10V, 20%, 0402 Taiyo Yuden, LMK105BJ225MV-F

10 3 C47, C57, C58 CAP., X5R, 1µF, 16V, 10%, 0805 AVX, 0805YD105KAT2A

11 2 C3, C4 CAP., OS-CON, 330µF, 16V, 20%, F12 PANASONIC, 16SVP330M

12 2 C11, C36 CAP., X7R, 100nF, 16V, 10%, 0402 MURATA, GRM155R71C104KA88D

13 1 C45 CAP., X7R, 100nF, 16V, 10%, 0603 TDK, C1608X7R1C404KT000N

14 8 C12, C13, C14, C23, C38, C39, C40,

C43

15 8 C15, C16, C26, C27, C17, C18, C19,

C28

16 2 L1, L2 IND., 0.17µH COOPER., FP1007R3-R17-R

17 1 R1 RES., CHIP, 1, 1%, 0402 VISHAY, CRCW04021R00FKED

18 2 R2, R15 RES., CHIP, 24.9k, 1%, 0402 VISHAY, CRCW040224K9FKED

19 2 R93, R94 RES., CHIP, 200, 1%, 0603 VISHAY, CRCW0603200RFKED

20 3 R80, R81, R84 RES., CHIP, 127, 1%, 0603 VISHAY, CRCW0603127RFKEA

21 1 R87 RES., CHIP, 15.8k, 1%, 0603 VISHAY, CRCW060315K8FKEA

22 2 U1, U3 IC, HIGH FREQUENCY DrMOS MOUDLE FAIRCHILD, FDMF5820DC

23 1 U2 IC, LTC3882EUJ-1, QFN 6mm × 6mm LINEAR TECH., LTC3882EUJ-1#0315-1PBF

24 1 U5 IC EEPROM 2KBIT 400kHz 8TSSOP MICROCHIP, 24LC025-I/ST

25 1 U6 IC., LTC3607EMSE, 16 Pin QFM 3 × 3mm LINEAR TECH., LTC3607IMSE#PBF

26 2 C37, C41 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220K AT2A

27 1 R49 RES., CHIP, 0, 2512, 1W VISHAY, CRCW25120000Z0EG

28 1 C21 CAP., X7R, 470pF, 50V, 10%, 0402 MURATA, GRM155R71H471KA01D

CAP., X5R, 100µF, 6.3V, 20%, 1206 MURATA, GRM31CR60J107ME39L

CAP., POSCAP, 470µF, 2.5V, D2E SIZE

PANASONIC, EEFGX0E471R

dc2312afb

13

DEMO MANUAL DC2312A-A/DC2312A-B

PARTS LIST DC2312A-B

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Additional Demo Board Circuit Components

1 0 D4, D7 (OPT) OPTIONAL

2 2 C20, C42 CAP., X5R, 0.22µF, 16V, 10%, 0402 TDK, C1005X5R1C224K

3 1 C22 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D

4 2 C29, C44 CAP., X7R, 0.01µF, 16V, 10%, 0603 AVX, 0603YC103KAT2A

5 2 C32, C48 CAP., X7R, 0.01µF, 16V, 10%, 0402 AVX, 0402YC103KAT2A

6 1 C30 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100KAT2A

7 2 D9, D11 LED, GREEN RECT CLEAR 0603 LITE ON, LTST-C193KGKT-5A

8 3 D5, D6, D10 LED, RED RECT CLEAR 0603 LITE ON, LTST-C193KRKT-5A

9 1 D8 DIODE, ULTRA LOW SCHOTTKY RECTIFIER NXP SEMI. PMEG2005AEL,315

10 2 L3, L4 IND., 4.7µH VISHAY, IHLP1616BZER4R7M11

11 2 Q1, Q6 TRANS, PNP GP 40V 200MA SC75-3 ON SEMI, MMBT3906TT1G

12 1 Q3 MOSFET, SPEED SRS 30V 30A LFPAK RENESAS, RJK0305DPB-00#J0

13 4 Q19, Q20, Q21, Q22 MOSFET, P-CH 20V 5.9A SOT-23 VISHAY, Si2365EDS-T1-GE3

14 2 Q23, Q24 MOSFET, N-CH 60V 115MA SOT23 DIODES INC., 2N7002-7-F

15 1 RF RES., CHIP, 100, 1%, 0402 VISHAY, CRCW0402100RFKED

16 2 RPG1, RPG2 RES., CHIP, 100k, 1%, 0402 VISHAY, CRCW0402100KFKED

17 2 RSD1, RSD2 RES., CHIP, 5.1M, 5%, 0402 VISHAY, CRCW04025M10JNED

18 2 R5, R25 RES

19

20 1 R45 SENSE RES., 0.010Ω, 1W, 1%, 2512 PANASONIC, ERJ-M1WSF10MU

21 1 R48 SENSE RES., 0.001Ω, 1W, 1%, 2512 PNANSONIC, ERJ-M1WTF1M0U

22 0 R29, R30, R31, R32, R33, R34, R35,

23 2 R7, R27 RES., CHIP, 2.67k, 1%, 0402 VISHAY, CRCW04022K67FKED

24 1 R9 RES., CHIP, 1.24k, 1%, 0402 VISHAY, CRCW04021K24FKED

25 13 R10, R11, R13, R14, R17, R19, R21,

22 1 R12 RES., CHIP, 64.9k, 1%, 0402 VISHAY, CRCW040264K9FKED

23 4 R57, R58, R59, R60 RES., CHIP, 1k, 1%, 0402 VISHAY, CRCW04021K00FKED

24 2 R63, R65 RES., CHIP, 121k, 1%, 0402 VISHAY, CRCW0402121KFKED

25 2 R64, R66 RES., CHIP, 887k, 1%, 0402 VISHAY, CRCW0402887KFKED

26 2 R69, R70 RES., CHIP, 10, 1%, 0603 VISHAY, CRCW060310R0FKEA

27 2 R76, R77 RES., CHIP, 4.99k, 1%, 0603 VISHAY, CRCW06034K99FKEA

28 5 R62, R67, R98, R99, R101 RES., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED

29 2 R61, R100 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA

30 0 R22, R46 OPTIONAL

31 0 R18 OPTIONAL

32 0 R20 OPTIONAL

33 0 C50 OPTIONAL

34 0 C54 OPTIONAL

35 0 C55 OPTIONAL

5 R16, R24, R71, R73, R83 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA

R36, R37, R38, R39, R40, R53, R68, R72, R74, R75, R78, R82, R90, R91, R92 (OPT)

R28, R41, R42, R43, R44, R86

., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED

OPTIONAL

RES., CHIP, 10k, 1%, 0603 VISHAY, CRCW060310K0FKEA

dc2312afb

14

DEMO MANUAL

DC2312A-A/DC2312A-B

PARTS LIST DC2312A-B

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Hardware – For Demo Board Only

1 28 E1-E4, E7-E19, E21-E31 TESTPOINT, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0

2 2 J1, J2 BANANA SMALL KEYSTONE, 575-4

3 4 J3, J4, J8, J9 STUD, TEST PIN PEM, KFH-032-10

4 8 J3, J4, J8, J9 ( X2 ) NUT, BRASS 10-32 ANY #10-32M/S BR PL

5 4 J3, J4, J8, J9 RING, LUG #10 KEYSTONE, 8205

6 4 J3, J4, J8, J9 WASHER, TIN PLATED BRASS ANY #10 EXT BZ TN

7 4 JP1, JP2, JP4, JP6 HEADER, 3 PIN 0.079 SINGLE ROW WURTH, 620 003 111 21

8 4 JP1, JP2, JP4, JP6 SHUNT SAMTEC, 2SN-BK-G

9 2 SW3, SW4 CONNECTOR, SUB MINIATURE SLIDE

SWITCHES

10 3 J7, J10, J14 CONN., BNC PC MOUNT RECEPT. JACK,

50Ω, TF-4 POST

11 1 J11 HEADER 12POS 2MM STR DL PCB FCI, 98414-G06-12ULF

12 1 J12 CONN., HEADER, 2mm × 7mm, 2mm, R/A (F) SULLINS, NPPN072FJFN-RC

13 1 J13 CONN., HEADER, 2mm × 7mm, 2mm, R/A (M) MOLEX, 87760-1416

14 1 J15 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA

C&K.,JS202011CQN

CONNEX, 112404

dc2312afb

15

DEMO MANUAL

5

4

3

2

1

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-A

0603

R67 OPT

E19

R34 OPT

R33 OPT

VOUT1-

VSENSE1-

IAVG1IAVG0

1630 McCarthy Blvd.

CUSTOMER NOTICE

VSENSE1+VSENSE0+

R98 OPT

R99 OPT

VOUT1_CFG

R36 OPT

R35 OPT

Milpitas, CA 95035

APPROVALS

VSENSE1-

VSENSE0-

A

www.linear.com

Phone: (408)432-1900

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

A

.VER.ON CI

2

1 3

SHEET OF

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

TECHNOLOGY

SCHEMATIC

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

TITLE:

HZ

HAORAN W.

HZ

HAORAN W.

HZ

HAORAN W.

PCB DES.

APP ENG.

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

NOTE: UNLESS OTHERWISE SPECIFIED

RUN1

FAULT1

OPT

R101

R100 OPT 0603

RUN0

FAULT0

PHAS_CFG

FREQ_CFG

R38 OPT

R37 OPT

1

DEMO CIRCUIT 2312A-A

LTC3882EUJ-1

Thursday, October 29, 2015

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

SCALE = NONE

2

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

3

1. ALL RESISTORS ARE IN OHMS, 0402.

ALL CAPACITORS ARE IN MICROFARADS, 0402.

2. INSTALL SHUNTS AS SHOWN.

4

VOUT1

R49 OPT 2512

VOUT0

5

R40 OPT

R39 OPT

dc2312afb

B

DATE

22uF

1210

22uF

1210

VIN

NC

GND

IAVG_GND

C41

OPT

C37

OPT

PGOOD1

VCC

1

VIN10VIN

PVCC

AGND

TMON

PWM

41

5

11

31

R57 1k

C48

TSNS1

33

VIN

ZCD#

EN/FAULT#

2

R58 1k

VDR

B

VOUT1+

E9

VSENSE1+

MMBT3906LT1G

Q6

10nF

R25 0

C36 100nF

5

7

BOOT

VIN

AGND

GL

35

27

P4

R22

PHASE

GL

0

VOUT1

16

VOUT1

ADJ. UP TO 2V

MAX 35A

GND

J8

J9

0603

L2

17

SW

PGND

15

34

OPTIONAL FOR 2-PHASE OPERATION

ASEL0

VDD25

C40

C39

C38

C43

0.17uH

FP1007R3-R17- R

SW18SW

PGND

28

R30 OPT

R29 OPT

C28

470uF

+

C27

470uF

+

C26

470uF

+

C19

470uF

+

1206

100uF

1206

100uF

1206

100uF

1206

100uF

R27

20

19

SW

U3 FDMF5820DC

R61 OPT 0603

ASEL1

2.5V

2.67k

SW

PGND

COMP0

COMP1

VDD33

R32 OPT

R31 OPT

R46

C42 0.22uF

21

22

23

24

25

26

12

13

14

R62 OPT

0

VFB1

VOUT0_CFG

VOUT0+

R1600603

2.5V

470uF

2.5V

470uF

2.5V

470uF

2.5V

R7

2.67k

20

SW

21

SW

22

SW

23

SW

24

SW

25

SW

26

PGND

12

PGND

13

PGND

14

ISNS0+

ISNS0-

38

37

ISENSE0-

ISENSE0+

U2

LTC3882EUJ-1

ALERTB

FAULT0

VDD33

VDD25

J4

C20 0.22uF

VSENSE0+

36

VSENSE0+

FAULT1

0603

R10 10k

R24 0

VSENSE0-

35

VSENSE0-

RUN0

SCL

GND

0603

40

15

0603

R11 10k

FB0

RUN1

SDA

COMP0

6

E7

VFB0

220pF

C22

R12 53.6k

1

COMP0

PGOOD0

27

PGOOD0

ALERTB

0603

R13 10k

VSENSE0+

R9 1.24K

C21

C30 10pF

PGOOD1

8

PGOOD1

0603

R14 10k

C C

680pF

2

SYNC

VOUT0-

E8

VSENSE0-

R18 1.24K

C54 220pF

TSNS0

TSNS1

R20 53.6k

3

TSNS1

TSNS0

ASEL117VOUT0_CFG18VOUT1_CFG19FREQ_CFG20PHAS_CFG

SHARE_CLK

ASEL0

23

16

ASEL1

ASEL0

SHARE_CLK

0603

R19 10k

R17 10k

VSENSE1+

C55

C50 10pF

28

COMP1

VOUT0_CFG

FAULT0

680pF

COMP1

29

FB1

0603

R21 10k

VFB1

VSENSE1-

34

VSENSE1-

FREQ_CFG

VOUT1_CFG

FAULT1

C31

VSENSE1+

ISNS1-

33

32

VSENSE1+

21

PHAS_CFG

RUN0

0603

R28 10k

VDR

1uF

ISNS1+

31

ISENSE1-

RUN1

0603

R41 10k

VIN

R15

24.9K

C52

0.1uF

C35

1uF

VDR

ISENSE1+

IAVG0

39

IAVG0

0603

R43 10k

9

8

6

29

4

32

30

3

IAVG1

30

IAVG1

PGOOD0

C34

C33

P3

PWM1

26

PWM1

0603

R44 10k

ADJ. UP TO 2V

MAX 35A

VOUT0

TSNS0

R5 0

33

VIN

ZCD#

EN/FAULT#

2

R60 1k

VDR

P2

VDD33

0.1uF

16V

16V 16V

J2

GND

D D

MMBT3906LT1G

Q1

C32

10nF

C11 100nF

5

BOOT

VIN

AGND

GL

27

C9

1uF

C8

1uF

2.2uF

C7

E2

7

35

PHASE

GL

GND

J3

VOUT0

SW16SW

25

4

22

24

L1

17

PGND34GL

VDD33

PGND

15

C18

+

C17

+

C16

+

C15

+

1206

C14

100uF

1206

C13

100uF

1206

C12

100uF

C23

1206

100uF

0.17uH

FP1007R3-R17- R

18

19

SW

U1 FDMF5820DC

PGND

28

PWM0

7

PWM0

VCC

VINSNS

VDD25

VDD33

SCL9SDA10ALERT11FAULT012FAULT113RUN014RUN1

SDA

SCL

VDD25

E3

E4

VDD33

APPROVED

HAORAN W.

APPROVED

HAORAN W.

APPROVED

HAORAN W.

REVISION HISTORY

DESCRIPTION

PRODUCTION 51-72-72

REV

__

ECO

VIN

C10

22uF

1210

C6

22uF

1210

10

11

VIN

9

VIN

8

VDR

NC

6

PVCC

29

AGND

4

C1

1uF

AGND

32

TMON

30

VCC

R2

3

24.9K

PWM

C53

0.1uF

1

31

C2

1uF

R59 1k

VDR

P1

VCC

VDD25VDD33

C5

R1 1

C4

330uF

+

VIN

C3

330uF

+

E1

J1

VIN

7V-14V

16

DEMO MANUAL

5

4

3

2

1

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-A

C

IOUT

TST

5 4

J7

3

E10

4

PULSE IN

2

1

C47

NOTE:

0805

1uF

3 2

2512

R45

0.01

1

R42

10K

0603

E11

GND

DO NOT EXCEED 5% DUTY CYCLE!

VOUT1

PULSE OUT

10mV / AMP

J10

1

C57

VOUT1VOUT0

VOUT0

J14

1

C58

VOUT0

VOUT1

R48

0.001

2512

R53 OPT

5

Q3

RJK0305DPB

DYNAMIC LOAD CIRCUIT

B

5 4 3 2

0805

1uF

5 4 3 2

0805

1uF

A

.VER.ON CI

2

2 3

www.linear.com

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

TECHNOLOGY

SCHEMATIC

TITLE:

HZ

HAORAN W.

HZ

HAORAN W.

HZ

HAORAN W.

APPROVALS

PCB DES.

APP ENG.

2 3

SHEET OF

1

DEMO CIRCUIT 2312A-A

LTC3882EUJ-1

Friday, August 14, 2015

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

SCALE = NONE

2

GND

VDR

E15

E13

ON

OFF

VDR

JP4

RSD2

5.1M

2

3

1

LTC3607PGOOD1

RF

100

2

1

JP6

VCC

ON

CF

RSD1

3

OFF

9

RUN2

11

PGOOD2

PVIN2

5

0.1uF

0603

SVIN

1

PVIN1

4

RUN1

14

U6

LTC3607EMSE

MODE/SYNC

15

16

LTC3607PGOOD1

5.1M

100k

RPG2

PGOOD1

VDR

L3

L4

0.1uF

COUT5

CFFW2

22pF

R66

COUT3

10uF

4.7uH

Vishay

IHLP1616BZER4R7M11

6

SW2

SW1

3

4.7uH

Vishay

IHLP1616BZER4R7M11

COUT7

10uF

R64

16V

0603

R63

121k

887k

1%

16V

0805

VFB2

PGND2

7

SGND SGND

8

GND

PGND1

2

VFB1

16V

0805

887k

1%

12

10

17

13

R65

121k

1%

CUSTOMER NOTICE

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

3

4

CIN1

10uF

25V

1206

VIN

22uF

CIN3

35V

7343

+

VIN

D D

CFFW1

22pF

100k

RPG1

VCC

COUT4

0.1uF

16V

0603

E16

E12

E14

GND

VCC

C

E17

GND

B

A

5

dc2312afb

17

DEMO MANUAL

5

4

3

2

1

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-A

RUN1

0

OPT

SCL

E31

0603

6

5

ALERTB

LGKPWR

SGND

1

8

7

GPIO_1

SW4

RUN0RUN1

SW3

CTRL2ALERTB

FAULTB

3

2

CTRL

FAULTB

ALERTB

9

10

GND

OUTEN_0

OUTEN_1

C

R70

10

1 4

ON

R69

10

1 4

ON

SDA

SHARE_CLK5SCL

4

5

4

SDA

SHARE_CLK

12

11

AUXSCL

AUXSDA

C

6

0603

2

5

0603

2

5

7

SCL

OFF

RESETB7AUXP

8

9

8

AUXP

RESETB

TO DC1613A

C44

10nF

3 6

C29

10nF

3 6

UNUSED

UNUSED10GND

11

10

11

UNUSED

0603

C45

GND

0603

GND1212V1312V

12

GND

13

12V

J12 DEMO HEADER (F)

14

PSM STACKING CONNECTORS:

R82

OPT

14

12V

J13DEMO HEADER (M)

0603

R77

4.99K

0603

R76

4.99K

100nF

AUXVCC

8

U5

1

.VER.ON CI

J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC

www.linear.com

1TLUAF0TLUAF

Q22

Si2365EDS

RED

R80

127

23

3V3 3V3

23

3V3

1

FAULT1

Si2365EDS

1

FAULT0

Si2365EDS

1

Q21

Q20

0603

D6

RED

R81

127

0603

D5

ALERTB

RED

R84

127

0603

D10

Fax: (408)434-0507

Milpitas, CA 95035

Fax: (408)434-0507

Milpitas, CA 95035

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

Phone: (408)432-1900

1630 McCarthy Blvd.

Phone: (408)432-1900

1630 McCarthy Blvd.

APPROVALS

.VER.ON CI

2

3 3

SHEET OF

1

LTC Confidential-For Customer Use Only

DEMO CIRCUIT 2312A-A

LTC3882EUJ-1

TECHNOLOGY

HZ

PCB DES.

LTC3882EUJ-1

Friday, August 14, 2015

SCHEMATIC

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

TITLE:

HAORAN W.

APP ENG.

DATE:

SCALE = NONE

2

J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416

ALERTB

1206

VIN

3V3

R75 OPT

R74 OPT

EESCL

EESDA

EEWP

5

7

6

WP

SCL

SDA

VCC

A2

A0

VSS

24LC025-I/ST

A1

3

4

2

B B

3V3

VDD33

Q19

Si2365EDS

3V3

E21

GND

CUSTOMER NOTICE

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

1DOOGP0DOOGP

Q23

2N7002A

GREEN

R93

200

0603

D9

GREEN

R94

200

0603

D11

2

1

3

R86 10K

VIN

PGOOD1

Q24

PGOOD0

0603

R87

1

2N7002A

1

15.8k

0603

A A

2 3

3

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

4

5

dc2312afb

D

FAULT1

E27

R68 OPT

SYNC

SHARE_CLK

SCL

SDA

ALERTB

ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN

AUX3V4

FAULT1

2

JP1

E24

E23

E22

E18

D8

21

J15

R91

1

3

E26

E25

VDD33

D

E28

OPT

NC

C

SYNC

AUX3V4

4

3

AUX3V4

FAULT0

FAULT0-FAULT1

R73 0

SHARE_CLK

ALERTB SDA SCL

2

1

SCL

GND

SDA

D4

R90

0603

TO DC2086A

RUN1

RUN0

E30

E29

1

NC

2

C

RUN0-RUN1

3

JP2

OPT

D7

OPT

0603

R71 0

R72 OPT

R78

OPT

R83

R92

3V3

2

3

1

4

SDA

GND

AUXP

J11

18

DEMO MANUAL

5

4

3

2

1

D

C

B

A

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-B

J4

0603

R10 10k

R24 0

VSENSE0-

35

VSENSE0-

RUN0

SCL

C

VOUT0+

GND

0603

40

FB0

15

RUN1

0603

R11 10k

SDA

COMP0

6

E7

VFB0

C22 220pF

R12 64.9K

1

COMP0

PGOOD0

27

PGOOD0

ALERTB

0603

R13 10k

VSENSE0+

R9

C21

C30 10pF

PGOOD1

8

0603

R14 10k

1.24k

470pF

TSNS0

2

TSNS0

SYNC

VOUT0-

E8

VSENSE0-

TSNS1

R20 OPT

3

TSNS1

SHARE_CLK

ASEL0

23

16

ASEL0

SHARE_CLK

0603

R17 10k

C54 OPT

VDR

C31

VSENSE1+

OPT

R18

VFB1

OPT

C55

VSENSE1-

COMP1

VSENSE1+

C50 OPT

ISNS1-

29

28

33

32

34

FB1

COMP1

ISENSE1-

VSENSE1-

VSENSE1+

ASEL117VOUT0_CFG18VOUT1_CFG19FREQ_CFG20PHAS_CFG

21

ASEL1

PHAS_CFG

FREQ_CFG

VOUT1_CFG

VOUT0_CFG

FAULT0

FAULT1

RUN0

0603

R19 10k

0603

R41 10k

R21 10k

R28 10k

1uF

R15

C52

C35

VDR

ISNS1+

31

ISENSE1+

39

RUN1

VIN

24.9K

0.1uF

1uF

IAVG0

0603

R43 10k

9

8

6

29

4

32

30

3

IAVG1

30

IAVG1

PGOOD0

C34

C33

P3

PWM1

26

0603

R44 10k

22uF

PWM1

GND

IAVG_GND

C41

C37

PGOOD1

B

VOUT1+

VOUT1

ADJ. UP TO 2V

MAX 35A

E9

J9

R22

OPT

0603

VSENSE1+

VOUT1

MMBT3906LT1G

Q6

C48

10nF

TSNS1

1210

R25 0

C36 100nF

5

33

11

16

7

VIN

VIN10VIN

VIN

NC

PVCC

AGND

TMON

VCC

PWM

1

R57 1k

41

5

22pF

EN/FAULT#

31

R58 1k

SW

BOOT

PHASE

VIN

AGND

GL

ZCD#

GL

PGND

2

35

27

34

VDR

P4

GND

J8

R46

OPT

C28

470uF

2.5V

+

C27

470uF

2.5V

+

C26

470uF

2.5V

+

C19

470uF

2.5V

+

C40

1206

100uF

C39

1206

100uF

C38

1206

100uF

C43

1206

100uF

L2

0.17uH

C42 0.22uF

FP1007R3-R17- R

R27

2.67k

17

20

19

SW

SW18SW

SW

21

SW

22

SW

23

SW

24

SW

PGND

ASEL0

28

OPTIONAL FOR 2-PHASE OPERATION

U3 FDMF5820DC

PGND

R30 OPT

R29 OPT

R61 0 0603

ASEL1

SW

PGND

COMP0

COMP1

VDD33

R32 OPT

R31 OPT

25

26

12

13

14

R62 0

VFB1

VOUT0_CFG

PGND

15

VDD25

D

DATE

ADJ. UP TO 2V

MAX 35A

VOUT0

TSNS0

R5 0

33

VIN

ZCD#

EN/FAULT#

2

R60 1k

VDR

P2

VDD33

0.1uF

16V

16V 16V

J2

GND

MMBT3906LT1G

Q1

C32

10nF

C11 100nF

5

7

BOOT

VIN

AGND

GL

27

35

C9

1uF

C8

1uF

2.2uF

C7

E2

PHASE

GL

GND

J3

VOUT0

SW16SW

PGND34GL

25

4

22

24

L1

17

VDD33

PGND

15

VCC

E3

R1600603

C18

2.5V

470uF

+

C17

470uF

2.5V

+

C16

470uF

2.5V

+

C15

470uF

2.5V

+

1206

C14

100uF

1206

C13

100uF

1206

C12

100uF

C23

1206

100uF

0.17uH

C20 0.22uF

FP1007R3-R17- R

R7

2.67k

18

19

20

SW

21

SW

22

SW

23

SW

24

SW

25

SW

26

U1 FDMF5820DC

PGND

12

PGND

13

PGND

14

PGND

28

VSENSE0+

ISNS0+

PWM0

ISNS0-

36

38

37

7

PWM0

ISENSE0-

ISENSE0+

VSENSE0+

VINSNS

VDD25

U2

LTC3882EUJ-1

VDD33

SCL9SDA10ALERT11FAULT012FAULT113RUN014RUN1

SDA

SCL

ALERTB

FAULT0

FAULT1

VDD25

E4

VDD33

VDD25

APPROVED

HAORAN W.

APPROVED

HAORAN W.

APPROVED

HAORAN W.

REVISION HISTORY

DESCRIPTION

PRODUCTION 51-72-72

REV

__

ECO

VIN

C10

22uF

1210

C6

22uF

1210

10

11

VIN

9

VIN

8

VDR

NC

6

PVCC

29

AGND

4

C1

1uF

AGND

32

TMON

30

VCC

R2

3

24.9K

PWM

C53

0.1uF

1

31

C2

1uF

R59 1k

VDR

P1

VCC

VDD25VDD33

C5

R1 1

C4

330uF

+

VIN

C3

330uF

+

E1

J1

VIN

7V-14V

0603

R67 0

E19

IAVG1IAVG0

R34 OPT

R33 OPT

VOUT1-

VSENSE1-

R98 0

VOUT1_CFG

Milpitas, CA 95035

1630 McCarthy Blvd.

CUSTOMER NOTICE

VSENSE1+VSENSE0+

R99 0

R36 OPT

R35 OPT

A

www.linear.com

Phone: (408)432-1900

APPROVALS

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

VSENSE1-

VSENSE0-

.VER.ON CI

2

1 3

SHEET OF

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

TECHNOLOGY

SCHEMATIC

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

TITLE:

HZ

HAORAN W.

HZ

HAORAN W.

HZ

HAORAN W.

PCB DES.

APP ENG.

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

NOTE: UNLESS OTHERWISE SPECIFIED

RUN1

FAULT1

0

R101

R100 0 0603

RUN0

FAULT0

PHAS_CFG

FREQ_CFG

R38 OPT

R37 OPT

1

DEMO CIRCUIT 2312A-B

LTC3882EUJ-1

Thursday, October 29, 2015

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

SCALE = NONE

2

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

3

1. ALL RESISTORS ARE IN OHMS, 0402.

ALL CAPACITORS ARE IN MICROFARADS, 0402.

2. INSTALL SHUNTS AS SHOWN.

4

VOUT1

R49 0 2512

VOUT0

5

R40 OPT

R39 OPT

dc2312afb

19

DEMO MANUAL

5

4

3

2

1

D

C

B

A

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-B

D

VOUT0

VOUT1

R48

0.001

2512

R53 OPT

DYNAMIC LOAD CIRCUIT

5

Q3

4

RJK0305DPB

E10

PULSE IN

C

IOUT

TST

5 4

J7

3 2

1

C47

0805

1uF

3 2

2512

R45

0.01

1

R42

10K

0603

E11

GND

DO NOT EXCEED 5% DUTY CYCLE!

VOUT1

NOTE:

PULSE OUT

10mV / AMP

J10

1

C57

VOUT1VOUT0

VOUT0

J14

1

C58

B

5 4 3 2

0805

1uF

5 4 3 2

0805

1uF

A

.VER.ON CI

2

2 3

www.linear.com

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

TECHNOLOGY

SCHEMATIC

TITLE:

HZ

HAORAN W.

HZ

HAORAN W.

HZ

HAORAN W.

APPROVALS

PCB DES.

APP ENG.

2 3

SHEET OF

1

DEMO CIRCUIT 2312A-B

LTC3882EUJ-1

Monday, August 10, 2015

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

SCALE = NONE

2

GND

VDR

E15

E13

ON

OFF

VDR

JP4

RSD2

5.1M

2

3

1

LTC3607PGOOD1

RF

100

2

1

VCC

JP6

ON

CF

RSD1

3

OFF

9

RUN2

11

PGOOD2

PVIN2

5

0.1uF

0603

SVIN

1

PVIN1

4

RUN1

14

U6

LTC3607EMSE

MODE/SYNC

15

16

LTC3607PGOOD1

5.1M

100k

RPG2

PGOOD1

VDR

L3

L4

COUT5

CFFW2

COUT3

4.7uH

Vishay

IHLP1616BZER4R7M11

6

SW2

SW1

3

4.7uH

Vishay

IHLP1616BZER4R7M11

COUT7

0.1uF

16V

0603

22pF

R63

121k

R66

887k

1%

10uF

16V

0805

VFB2

PGND2

7

SGND SGND

8

GND

PGND1

2

VFB1

10uF

16V

0805

R64

887k

1%

12

10

17

13

R65

121k

1%

CUSTOMER NOTICE

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

3

4

CIN1

10uF

25V

1206

VIN

22uF

CIN3

35V

7343

+

VIN

20

CFFW1

22pF

100k

RPG1

VCC

COUT4

0.1uF

16V

0603

E16

E12

E14

GND

VCC

E17

GND

5

dc2312afb

DEMO MANUAL

5

4

3

2

1

DC2312A-A/DC2312A-B

SCHEMATIC DIAGRAM DC2312A-B

RUN1

0

OPT

5

SCL

SGND

E31

0603

6

7

ALERTB

LGKPWR

FAULTB

1

2

FAULTB

8

9

GPIO_1

OUTEN_0

1 4

SW4

RUN0RUN1

1 4

SW3

CTRL2ALERTB

3

4

3

4

CTRL

ALERTB

10

11

GND

OUTEN_1

C

0603

R70

10

2

5

ON

R69

10

0603

2

5

ON

SDA

SHARE_CLK5SCL

6

5

6

SCL

SDA

SHARE_CLK

12

AUXSCL

AUXSDA

C

OFF

RESETB7AUXP

8

7

8

RESETB

TO DC1613A

OFF

UNUSED

9

AUXP

UNUSED

C44

3 6

C29

3 6

UNUSED10GND

11

10

11

UNUSED

0603

C45

10nF

GND

0603

GND1212V1312V

12

GND

13

J12 DEMO HEADER (F)

14

R82

14

12V

J13DEMO HEADER (M)

R77

4.99K

R76

4.99K

100nF

U5

PSM STACKING CONNECTORS:

OPT

0603

AUXVCC

8

VCC

A0

1

J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC

1206

VIN

EEWP

7

2

WP

A1

J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416

VIN

EESCL

6

SCL

A2

3

23

3V3 3V3

23

3V3

R75 OPT

R74 OPT

EESDA

5

SDA

VSS

4

Si2365EDS

1

FAULT1

Si2365EDS

1

FAULT0

Si2365EDS

1

ALERTB

24LC025-I/ST

E21

B B

.VER.ON CI

2

3 3

www.linear.com

1TLUAF0TLUAF

Q22

RED

R80

127

0603

D6

Q21

RED

R81

127

0603

D5

Q20

ALERTB

RED

R84

127

0603

D10

R93

200

0603

3V3

R94

200

0603

3V3

VDD33

2

Q19

Si2365EDS

3

3V3

GND

1DOOGP0DOOGP

D9

D11

VIN

1630 McCarthy Blvd.

GREEN

1

R86 10K

Fax: (408)434-0507

Milpitas, CA 95035

Fax: (408)434-0507

Milpitas, CA 95035

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

LTC Confidential-For Customer Use Only

Phone: (408)432-1900

LTC Confidential-For Customer Use Only

Phone: (408)432-1900

LTC Confidential-For Customer Use Only

TECHNOLOGY

HZ

APPROVALS

PCB DES.

CUSTOMER NOTICE

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

Q23

2N7002A

1

PGOOD1

Q24

2N7002A

1

PGOOD0

R87

15.8k

0603

A A

SCHEMATIC

HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT

TITLE:

HAORAN W.

APP ENG.

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

2 3

SHEET OF

1

DEMO CIRCUIT 2312A-B

LTC3882EUJ-1

Monday, August 10, 2015

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

2

SCALE = NONE

3

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

4

5

dc2312afb

D

FAULT1

E27

R68 OPT

SYNC

SHARE_CLK

SCL

SDA

ALERTB

ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN

AUX3V4

FAULT1

2

JP1

E24

E23

E22

E18

D8

21

J15

R91

1

3

E26

E25

VDD33

D

E28

OPT

NC

C

SYNC

AUX3V4

4

3

AUX3V4

FAULT0

FAULT0-FAULT1

R73 0

SHARE_CLK

ALERTB SDA SCL

2

1

SCL

GND

SDA

D4

R90

0603

TO DC2086A

RUN1

RUN0

E30

E29

1

NC

2

C

RUN0-RUN1

3

JP2

OPT

D7

OPT

0603

R71 0

R72 OPT

R78

OPT

R83

R92

3V3

2

3

1

4

SDA

GND

AUXP

J11

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

21

DEMO MANUAL DC2312A-A/DC2312A-B

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Linear Technology Corporation

22

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

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LT 0116 REV B • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 2015