Renesas ISL85003EVAL2Z, ISL85003AEVAL2Z, ISL85410EVAL1Z, ISL85418EVAL1Z, ISL854102EVAL1Z User Manual

USER’S MANUAL

R

2

R10.8V

V

OUT

0.8V–

-------------------------------

=

(EQ. 1)

ISL85003EVAL2Z, ISL85003AEVAL2Z

Evaluation Board User Guide

Description

The ISL85003 and ISL85003A kits are intended for use for
point-of-load applications sourcing from 4.5V to 18V. The kits
are used to demonstrate the performance of the ISL85003
and ISL85003A, low quiescent current high efficiency
synchronous buck regulators.

The ISL85003 and ISL85003A are offered in a 4x3mm dual flat
no lead (DFN) package.

Specifications

The boards are designed to operate at the following operating
conditions:

• Input voltage range from 4.5V to 18V

• Resistor programmable output voltage from 0.8V, ±1%

• Up to 3A output current

• Current mode control

- DCM/CCM

- Internal or external compensation options

- 500kHz switching frequency option

- External synchronization up to 2MHz on ISL85003

• Adjustable soft-start time on the ISL85003A

• Operating junction temperature range: -40°C to +125°C

Quick Setup Guide

1. Ensure that the circuit is correctly connected to the supply
and loads prior to applying any power.

2. Connect the bias supply to VIN, the plus terminal to VIN (P4)
and the negative return to PGND (P5).

3. Connect the output load to V0, the plus terminal to V0 (P8)
and the negative return to PGND (P9).

4. Verify that the position is PWM or PFM for SW2.

5. Verify that the position is ON for SW1.

6. Turn on the power supply.

7. Verify the output voltage is 5V for VO.

Recommended Equipment

The following materials are recommended to perform testing:

• 0V to 25V power supply with at least 10A source current
capability

• Electronic loads capable of sinking current up to 7A

• Digital multimeters (DMMs)

• 100MHz quad-trace oscilloscope

• Signal generator

AN1930

Rev.1.00

Aug 28, 2014

Key Board Features

•Small, compact design

• Switch selectable EN (enabled/disabled)

• Switch selectable MODE (auto-DCM/forced-PWM)

• Connectors and test points for easy probing

References

• ISL85003, ISL85003A datasheet

Ordering Information

PART NUMBER DESCRIPTION

ISL85003EVAL2Z Evaluation Board for ISL85003FRZ and

ISL85003AFRZ

Evaluating the Other Output
Voltage

The ISL85003 and ISL85003A kit outputs are preset to 5V for

; however, the output voltages are programmed using an

V

OUT

external resistor divider that scales the feedback relative to the
internal reference voltage. The output voltage programming
resistor, R
resistor, R1, and the desired regulator output voltage, V
The value for the feedback resistor R1 is typically between
10kΩ and 400kΩ as shown in Equation 1

If the output voltage desired is 0.8V, then R2 is left
unpopulated. R
of the modulator compensation.

Switch Control

The ISL85003 and ISL85003A evaluation boards contain SW1
and SW2 for various controls of the ISL85003 and ISL85003A
circuitries. Table 1

SW1 ENABLE FUNCTION

SW2 MODE FUNCTION

, will depend on the value chosen for the feedback

2

.

is still required to set the low frequency pole

1

details this function.

TABLE 1. SWITCH SETTING S

1OFFDisable V0

3ONEnable V0

1DCMForce DCM

3 PWM Fixed PWM frequency at light load

OUT

.

AN1930 Rev.1.00 Page 1 of 6
Aug 28, 2014

ISL85003EVAL2Z, ISL85003AEVAL2Z

Components Selection

Evaluation Board User Guide

V

OUT

C

, C

1

2

C

5

C

6

C

4

L

1

R

1

R

2

NOTE: VIN = 12V, I
that require high output capacitance greater than 200µF, R

0.8V 1V 1.2V 1.5V 1.8V 2.5V 3.3V 5V

10µF 10µF 10µF 10µF 10µF 10µF 10µF 10µF

22µF 22µF 22µF 47µF 47µF 47µF 47µF 47µF

22µF 22µF 22µF 22µF 22µF 22µF 22µF 22µF

Open Open Open 4.7pF 4.7pF 4.7pF 4.7pF 4.7pF

1.8µH 2.2µH 2.2µH 3.3µH 3.3µH 3.3µH 4.7µH 4.7µH

301kΩ 301kΩ 301kΩ 301kΩ 301kΩ 301kΩ 301kΩ 301kΩ

Open 1.2MΩ 604kΩ 344kΩ 241kΩ 142kΩ 96.3kΩ 57.6kΩ

= 3A; The components selection table is a suggestion for typical application using internal compensation mode. For applications

OUT

should be adjusted to maintain a loop response bandwidth about 40kHz.

1

ISL85003EVAL2Z Evaluation Board

FIGURE 1. TOP VIEW FIGURE 2. BOTTOM VIEW

AN1930 Rev.1.00 Page 2 of 6
Aug 28, 2014

AN1930 Rev.1.00 Page 3 of 6

Aug 28, 2014

ISL85003EVAL2Z, ISL85003AEVAL2Z

ISL85003EVAL2Z Rev B Schematic

VCC

EN

VOUT

SYNC

PG

OFF

EN

VIN

SYNC

DCM

PWM ON

VCCVCC

VOUT

D2

DNP

C1
10uF

R5
2k

C3

0.1uF

SW2

C4

4.7p

SW1

R9
DNP

P6

ENABLE

C5
47uF

+

C10

150uF

P1

PG

Q1
2N7002

R6
200k

R2

57.1k

C8

DNP

P7

VCC

C6
22uF

P2

SYNC

C2

10uF

R11
0

R3

DNP

R7
200k

C7

DNP

P8

VOUT

L1

4.7uH

D1
LTST-C190KGKT

P4

VIN

R14
200k

R1

301k

C9
1uF

P9

GND

R8
DNP

U1

ISL85003

PG

2

EN

3

FB

4

COMP

5

AGND

6

PHASE

7

PHASE

8

VIN

9

VIN

10

VDD

11

BOOT

12

EPAD

13

SYNC

1

R4
20

J2

PHASE

1

2

P5

GND

J1

VOUT

1

2

Evaluation Board User Guide

ISL85003EVAL2Z, ISL85003AEVAL2Z

Bill of Materials

REFERENCE

PART NUMBER QTY UNITS

ISL85003FRZ 1 ea U1 IC-3A BUCK REGULATOR, 12P, DFN, 4X3,

ISL85003AFRZ 1 ea U1 IC-3A BUCK REGULATOR PWM, 12P, DFN, 4X3,

EEE-FK1H151P-T 1 ea C10 CAP, SMD, 10.3mm, 150µF, 50V, 20%, ROHS,

H1044-004R7-50VR25-T 1 ea C4 CAP, SMD, 0402, 4.7pF, 50V, 0.25pF, NPO,

H1044-DNP 0 ea C7, C8, CSS CAP, SMD, 0402, DNP-PLACE HOLDER, ROHS

H1045-00104-50V10-T 1 ea C3 CAP, SMD, 0603, 0.1µF, 50V, 10%, X7R, ROHS AVX 06035C104KAT2A

H1045-00105-16V10-T 1 ea C9 CAP, SMD, 0603, 1µF, 16V, 10%, X5R, ROHS MURATA GRM188R61C105KA12D

H1065-00106-25V10-T 2 ea C1, C2 CAP, SMD, 1206, 10µF, 25V, 10%, X7R, ROHS VENKEL C1206X7R250-106KNE

H1065-00226-25V10-T 2 ea C5, C6 CAP, SMD, 1206, 22µF, 25V, 10%, X5R, ROHS MURATA GRM31CR61E226KE15L

RLF7030T-4R7M3R4 1 ea L1 COIL-PWR INDUCTOR, SMD, 7.3X6.8mm,

131-4353-00 2 ea J1, J2 CONN-SCOPE PROBE TEST PT, COMPACT, PCB

1514-2 4 ea P4, P5, P8, P9 CONN-TURRET, TERMINAL POST, TH, ROHS KEYSTONE 1514-2

5002 4 ea P1, P2, P6, P7 CONN-MINI TEST POINT, VERTICAL, WHITE,

BAT54C-T 1 ea D2 DIODE-RECTIFIER, SMD, SOT23, 3P, 30V,

LTST-C190KGKT-T 1 ea D1 LED, SMD, 0603, GREEN CLEAR, 2V, 20mA,

2N7002LT1G-T 1 ea Q1 TRANSISTOR-MOS, N-CHANNEL, SMD, SOT23,

H2510-00R00-1/16W-T 1 ea R11 RES, SMD, 0402, 0Ω, 1/16W, 5%, TF, ROHS VENKEL CR0402-16W-00T

H2510-03013-1/16W1-T 1 ea R1 RES, SMD, 0402, 301k, 1/16W, 1%, TF, ROHS YAGEO RC0402FR-07301KL

H2510-05762-1/16W1-T 1 ea R2 RES, SMD, 0402, 57.6k, 1/16W, 1%, TF, ROHS PANASONIC ERJ-2RKF5762X

H2510-DNP 0 ea R3 RES, SMD, 0402, DNP, DNP, DNP, TF, ROHS

H2511-00200-1/10W1-T 1 ea R4 RES, SMD, 0603, 20Ω, 1/10W, 1%, TF, ROHS PANASONIC ERJ-3EKF20R0V

H2511-02001-1/10W1-T 1 ea R5 RES, SMD, 0603, 2k, 1/10W, 1%, TF, ROHS KOA RK73H1JTTD2001F

H2511-02003-1/10W1-T 3 ea R6, R7, R14 RES, SMD, 0603, 200k, 1/10W, 1%, TF, ROHS VENKEL CR0603-10W-2003FT

H2511-DNP 0 ea R8, R9 RES, SMD, 0603, DNP-PLACE HOLDER, ROHS

GT11MSCBE-T 2 ea SW1, SW2 SWITCH-TOGGLE, SMD, 6PIN, SPDT, 2POS, ON-

SJ-5003-BLACK 4 ea Bottom four

DESIGNATOR DESCRIPTION MFR MFR PART #

INTERSIL ISL85003FRZ

ROHS

INTERSIL ISL85003AFRZ

PANASONIC EEE-FK1H151P

MURATA GRM36COG4R7C050AQ

TDK RLF7030T-4R7M3R4

TEKTRONIX 131-4353-00

KEYSTONE 5002

FAIRCHILD BAT54C

LITEON/VISHAY LTST-C190KGKT

ON
SEMICONDUCTOR

ITT INDUSTRIES/
C&K DIVISION

3M SJ-5003SPBL

2N7002LT1G

GT11MSCBE

corners

ROHS

ALUM.ELEC.

ROHS

4.7µH, 20%, 3.5A, ROHS

MNT, ROHS

ROHS

200mA, ROHS

571nm, 35mcd, ROHS

60V, 115mA, ROHS

ON, ROHS

BUMPONS, 0.44inW x 0.20inH, DOMETOP,
BLACK

AN1930 Rev.1.00 Page 4 of 6
Aug 28, 2014

ISL85003EVAL2Z, ISL85003AEVAL2Z

PCB Layout

Evaluation Board User Guide

FIGURE 3. TOP LAYER FIGURE 4. INNER LAYER 1

FIGURE 5. INNER LAYER 2 FIGURE 6. BOTTOM LAYER

AN1930 Rev.1.00 Page 5 of 6
Aug 28, 2014

http://www.renesas.com

Refer to "http://www.renesas.com/" for the latest and detailed information.

Renesas Electronics America Inc.

1001 Murphy Ranch Road, Milpitas, CA 95035, U.S.A.
Tel: [phone], Fax: [phone]

Renesas Electronics Canada Limited

9251 Yonge Street, Suite 8309 Richmond Hill, Ontario Canada L4C 9T3
Tel: [phone]

Renesas Electronics Europe Limited

Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K
Tel: [phone], Fax: [phone]

Renesas Electronics Europe GmbH

Arcadiastrasse 10, 40472 Düsseldorf, Germany
Tel: [phone], Fax: [phone]

Renesas Electronics (China) Co., Ltd.

Room 1709 Quantum Plaza, No.27 ZhichunLu, Haidian District, Beijing, 100191 P. R. China
Tel: [phone], Fax: [phone]

Renesas Electronics (Shanghai) Co., Ltd.

Unit 301, Tower A, Central Towers, 555 Langao Road, Putuo District, Shanghai, 200333 P. R. China
Tel: [phone], Fax: [phone]

Renesas Electronics Hong Kong Limited

Unit 1601-1611, 16/F., Tower 2, Grand Century Place, 193 Prince Edward Road West, Mongkok, Kowloon, Hong Kong
Tel: [phone], Fax: [phone]

Renesas Electronics Taiwan Co., Ltd.

13F, No. 363, Fu Shing North Road, Taipei 10543, Taiwan
Tel: [phone], Fax: [phone]

Renesas Electronics Singapore Pte. Ltd.

80 Bendemeer Road, Unit #06-02 Hyflux Innovation Centre, Singapore 339949
Tel: [phone], Fax: [phone]

Renesas Electronics Malaysia Sdn.Bhd.

Unit 1207, Block B, Menara Amcorp, Amcorp Trade Centre, No. 18, Jln Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia
Tel: [phone], Fax: [phone]

Renesas Electronics India Pvt. Ltd.

No.777C, 100 Feet Road, HAL 2nd Stage, Indiranagar, Bangalore 560 038, India
Tel: [phone], Fax: [phone]

Renesas Electronics Korea Co., Ltd.

17F, KAMCO Yangjae Tower, 262, Gangnam-daero, Gangnam-gu, Seoul, 06265 Korea
Tel: [phone], Fax: [phone]

SALES OFFICES

© 2018 Renesas Electronics Corporation. All rights reserved.

Colophon 7.0

(Rev.4.0-1 November 2017)

Notice

1. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples. You are fully responsible for

the incorporation or any other use of the circuits, software, and information in the design of your product or system. Renesas Electronics disclaims any and all liability for any losses and damages incurred by

you or third parties arising from the use of these circuits, software, or information.

2. Renesas Electronics hereby expressly disclaims any warranties against and liability for infringement or any other claims involving patents, copyrights, or other intellectual property rights of third parties, by or

arising from the use of Renesas Electronics products or technical information described in this document, including but not limited to, the product data, drawings, charts, programs, algorithms, and application

examples.

3. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas Electronics or others.

4. You shall not alter, modify, copy, or reverse engineer any Renesas Electronics product, whether in whole or in part. Renesas Electronics disclaims any and all liability for any losses or damages incurred by

you or third parties arising from such alteration, modification, copying or reverse engineering.

5. Renesas Electronics products are classified according to the following two quality grades: “Standard” and “High Quality”. The intended applications for each Renesas Electronics product depends on the

product’s quality grade, as indicated below.

"Standard": Computers; office equipment; communications equipment; test and measurement equipment; audio and visual equipment; home electronic appliances; machine tools; personal electronic

equipment; industrial robots; etc.

"High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control (traffic lights); large-scale communication equipment; key financial terminal systems; safety control equipment; etc.

Unless expressly designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products are

not intended or authorized for use in products or systems that may pose a direct threat to human life or bodily injury (artificial life support devices or systems; surgical implantations; etc.), or may cause

serious property damage (space system; undersea repeaters; nuclear power control systems; aircraft control systems; key plant systems; military equipment; etc.). Renesas Electronics disclaims any and all

liability for any damages or losses incurred by you or any third parties arising from the use of any Renesas Electronics product that is inconsistent with any Renesas Electronics data sheet, user’s manual or

other Renesas Electronics document.

6. When using Renesas Electronics products, refer to the latest product information (data sheets, user’s manuals, application notes, “General Notes for Handling and Using Semiconductor Devices” in the

reliability handbook, etc.), and ensure that usage conditions are within the ranges specified by Renesas Electronics with respect to maximum ratings, operating power supply voltage range, heat dissipation

characteristics, installation, etc. Renesas Electronics disclaims any and all liability for any malfunctions, failure or accident arising out of the use of Renesas Electronics products outside of such specified

ranges.

7. Although Renesas Electronics endeavors to improve the quality and reliability of Renesas Electronics products, semiconductor products have specific characteristics, such as the occurrence of failure at a

certain rate and malfunctions under certain use conditions. Unless designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas

Electronics document, Renesas Electronics products are not subject to radiation resistance design. You are responsible for implementing safety measures to guard against the possibility of bodily injury, injury

or damage caused by fire, and/or danger to the public in the event of a failure or malfunction of Renesas Electronics products, such as safety design for hardware and software, including but not limited to

redundancy, fire control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because the evaluation of microcomputer software alone is very difficult

and impractical, you are responsible for evaluating the safety of the final products or systems manufactured by you.

8. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product. You are responsible for carefully and

sufficiently investigating applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive, and using Renesas Electronics

products in compliance with all these applicable laws and regulations. Renesas Electronics disclaims any and all liability for damages or losses occurring as a result of your noncompliance with applicable

laws and regulations.

9. Renesas Electronics products and technologies shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws

or regulations. You shall comply with any applicable export control laws and regulations promulgated and administered by the governments of any countries asserting jurisdiction over the parties or

transactions.

10. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or transfers the product to a third party, to notify such third

party in advance of the contents and conditions set forth in this document.

11. This document shall not be reprinted, reproduced or duplicated in any form, in whole or in part, without prior written consent of Renesas Electronics.

12. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products.

(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its directly or indirectly controlled subsidiaries.

(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.