ON Semiconductor NCP3063, NCP3063B, NCV3063 Technical data

NCP3063, NCP3063B, NCV3063

1.5 A, Step-Up/Down/ Inverting Switching Regulators

The NCP3063 Series is a higher frequency upgrade to the popular MC34063A and MC33063A monolithic DC-DC converters. These devices consist of an internal temperature compensated reference, comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver and a high current output switch. This series was specifically designed to be incorporated in Step-Down, Step-Up and Voltage-Inverting applications with a minimum number of external components.

Features

•Operation to 40 V Input

•Low Standby Current

•Output Switch Current to 1.5 A

•Output Voltage Adjustable

•Frequency Operation of 150 kHz

•Precision 1.5% Reference

•New Features: Internal Thermal Shutdown with Hysteresis

New Features: Cycle-by-Cycle Current Limiting

•Pb-Free Packages are Available

Applications

•Step-Down, Step-Up and Inverting supply applications

•High Power LED Lighting

•Battery Chargers

12 V

0.15 W

220 mF

2.4 kW

COMPARATOR

0.2 V

NCP3063

SET dominant

COMPARATOR

SET dominant

REFERENCE REGULATOR

3.9 kW

Figure 1. Typical Buck Application Circuit

TSD

OSCILLATOR

1.25 V

2.2 nF

470 mF

out

3.3 V / 800 mA

out

47 mH

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MARKING

DIAGRAMS

3063x

SOIC-8 D SUFFIX CASE 751

PDIP-8

P, P1 SUFFIX

CASE 626

DFN-8

SUFFIX

CASE 488

NCP3063x = Specific Device Code

x = B A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G = Pb-Free Package

(Note: Microdot may be in either location)

ALYW

V3063 ALYW

NCP3063x

AWL

YYWWG

NCV3063

AWL

YYWWG

NCP 3063x ALYW

NCV

3063

ALYW

ORDERING INFORMATION

See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet.

© Semiconductor Components Industries, LLC, 2007

June, 2007 - Rev. 3

1 Publication Order Number:

NCP3063/D

NCP3063, NCP3063B, NCV3063

Switch Collector

Switch Emitter

Timing Capacitor

GND

Figure 2. Pin Connections

N.C.

Ipk Sense

Comparator Inverting Input

(Top View)

N.C.

Ipk Sense

Comparator Inverting Input

Switch Collector

Switch Emitter

Timing Capacitor

GND

NOTE: EP Flag must be tied to GND Pin 4

on PCB

EP Flag

(Top View)

N.C.

Ipk Sense

Comparator Inverting Input

Figure 3. Pin Connections

NCP3063

SET dominant

COMPARATOR

0.2 V

COMPARATOR

TSD

SET dominant

OSCILLATOR

1.25 V REFERENCE REGULATOR

Switch Collector

Switch Emitter

Timing Capacitor

GND

Figure 4. Block Diagram

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NCP3063, NCP3063B, NCV3063

PIN DESCRIPTION

Pin No. Pin Name Description

1 Switch Collector Internal Darlington switch collector

2 Switch Emitter Internal Darlington switch emitter

3 Timing Capacitor

Oscillator Input

4 GND Ground pin for all internal circuits

5 Comparator

Inverting Input

6 V

7 Ipk Sense Peak Current Sense Input to monitor the voltage drop across an external resistor to limit the peak

8 N.C. Pin Not Connected

Exposed

Exposed Pad The exposed pad beneath the package must be connected to GND (Pin 4). Additionally, using

Pad

MAXIMUM RATINGS (measured vs. Pin 4, unless otherwise noted)

VCC pin 6 V

Comparator Inverting Input pin 5 V

Darlington Switch Collector pin 1 V

Darlington Switch Emitter pin 2 (transistor OFF) V

Darlington Switch Collector to Emitter pin 1-2 V

Darlington Switch Current I

Ipk Sense Pin 7 V

Timing Capacitor Pin 3 V

POWER DISSIPATION AND THERMAL CHARACTERISTICS

PDIP-8 Thermal Resistance Junction-to-Air

SOIC-8 Thermal Resistance Junction-to-Air

DFN-8 Thermal Resistance Junction-to-Air

Storage Temperature Range T

Maximum Junction Temperature

Operating Junction Temperature Range (Note 3) NCP3063 NCP3063B, NCV3063

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

1. This device series contains ESD protection and exceeds the following tests: Pin 1-8: Human Body Model 2000 V per AEC Q100-002; 003 or JESD22/A114; A115 Machine Model Method 200 V

2. This device contains latch-up protection and exceeds 100 mA per JEDEC Standard JESD78.

3. The relation between junction temperature, ambient temperature and Total Power dissipated in IC is TJ = TA + R

4. The pins which are not defined may not be loaded by external signals

Timing Capacitor

Inverting input pin of internal comparator

Voltage Supply

current through the circuit

proper layout techniques, the exposed pad can greatly enhance the power dissipation capabilities of the NCP3063.

Rating Symbol Value Unit

CII

SWC

SWE

SWCE

IPK

TCAP

0 to +40 V

-0.2 to + V

0 to +40 V

-0.6 to + V

0 to +40 V

1.5 A

-0.2 to VCC + 0.2 V

-0.2 to +1.4 V

Rating Symbol Value Unit

°C/W

100

°C/W

180

°C/W

J MAX

STG

-65 to +150 °C

+150 °C

°C

0 to +70

-40 to +125

q •

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NCP3063, NCP3063B, NCV3063

ELECTRICAL CHARACTERISTICS (V

= 5.0 V, T

= T

low

to T

[Note 5], unless otherwise specified)

high

Symbol Characteristic Conditions Min Typ Max Unit

OSCILLATOR

OSC

DISCHG

CHG

DISCHG

CHG

IPK(Sense)

Frequency (V

Discharge to Charge Current Ratio (Pin 7 to VCC, TJ = 25°C) 5.5 6.0 6.5 -

5 = 0 V, CT = 2.2 nF,

= 25°C)

110 150 190 kHz

Capacitor Discharging Current (Pin 7 to VCC, TJ = 25°C) 1650

Capacitor Charging Current (Pin 7 to VCC, TJ = 25°C) 275

Current Limit Sense Voltage (TJ = 25°C) (Note 6) 165 200 235 mV

OUTPUT SWITCH (Note 7)

SWCE(DROP)

C(OFF)

Darlington Switch Collector to Emitter Voltage Drop

(ISW = 1.0 A, Pin 2 to GND,

TJ = 25°C) (Note 7)

1.0 1.3 V

Collector Off-State Current (VCE = 40 V) 0.01 100

COMPARATOR

Threshold Voltage

TJ = 25°C 1.250 V

NCP3063 -1.5 +1.5 %

NCP3063B, NCV3063 -2 +2 %

REG

CII in

Threshold Voltage Line Regulation (VCC = 5.0 V to 40 V) -6.0 2.0 6.0 mV

LiNE

Input Bias Current (Vin = Vth) -1000 -100 1000 nA

TOTAL DEVICE

Supply Current (VCC = 5.0 V to 40 V,

CT = 2.2 nF, Pin 7 = VCC,

5 > Vth, Pin 2 = GND,

remaining pins open)

7.0 mA

Thermal Shutdown Threshold 160 °C

Hysteresis 10 °C

5. NCP3063: T NCP3063B, NCV3063: T

6. The V

IPK(Sense)

on comparator response time and di/dt current slope. See the Operating Description section for details.

= 0°C, T

low

Current Limit Sense Voltage is specified at static conditions. In dynamic operation the sensed current turn-off value depends

= +70°C;

high

= -40°C, T

low

= +125°C

high

7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.

8. NCV prefix is for automotive and other applications requiring site and change control.

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NCP3063, NCP3063B, NCV3063

450

400

350

300

250

200

150

FREQUENCY (kHz)

100

0 1 2 3 4 5 6 7 8 9 101112 13 14 15161718 1920

Ct, CAPACITANCE (nF) VCC, SUPPLY VOLTAGE (V)

Figure 5. Oscillator Frequency vs. Oscillator

Timing Capacitor

2.4

2.2

2.0

1.8

VCC = 5.0 V IE = 1 A

190

180

170

160

150

140

FREQUENCY (Hz)

130

120

110

Figure 6. Oscillator Frequency vs. Supply

1.25

1.20

1.15

CT = 2.2 nF TJ = 25°C

21 34 38

Voltage

VCC = 5.0 V IC = 1 A

402925161273

1.6

1.4

VOLTAGE DROP (V)

1.2

1.0

TJ, JUNCTION TEMPERATURE (°C) TJ, JUNCTION TEMPERATURE (°C)

Figure 7. Emitter Follower Configuration Output

Darlington Switch Voltage Drop vs. Temperature

2.0

1.9

VCC = 5.0 V TJ = 25°C

1.8

1.7

1.6

1.5

1.4

1.3

VOLTAGE DROP (V)

1.2

1.1

1.0

IE, EMITTER CURRENT (A) IC, COLLECTOR CURRENT (A)

Figure 9. Emitter Follower Configuration Output

Darlington Switch Voltage Drop vs. Emitter Current

1.10

VOLTAGE DROP (V)

1.05

150100500-50

1.0 150100500-50

Figure 8. Common Emitter Configuration Output Darlington Switch Voltage Drop vs. Temperature

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

VOLTAGE DROP (V)

0.7

0.6

1.51.00.50

0.5

VCC = 5.0 V TJ = 25°C

1.51.00.50

Figure 10. Common Emitter Configuration

Output Darlington Switch Voltage Drop vs.

Collector Current

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NCP3063, NCP3063B, NCV3063

1.30

1.28

1.26

1.24

1.22

1.20

, COMPARATOR THRESHOLD VOLTAGE (V)

0.30

0.28

0.26

0.24

0.22

0.20

0.18

VOLTAGE (V)

, CURRENT LIMIT SENSE

0.16

0.14

ipk(sense)

0.12

-10 806550 110

TJ, JUNCTION TEMPERATURE (°C) TJ, JUNCTION TEMPERATURE (°C)

1259535205-25-40

Figure 11. Comparator Threshold Voltage vs.

Temperature

6.0

5.5

5.0

4.5

0.10 20 95 110

Figure 12. Current Limit Sense Voltage vs.

Temperature

65 80

12550355-10-25-40

4.0

3.5

3.0

, SUPPLY CURRENT (mA)

2.5

2.0 13 18 23 43

VCC, SUPPLY VOLTAGE (V)

CT = 2.2 nF Pin 5, 7 = V Pin 2 = GND

3833288.03.0

Figure 13. Standby Supply Current vs. Supply Voltage

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