Intersil ISL85001EVAL1Z Montage- und Bedienungsanleitung

®ISL85001EVAL1Z: 1A

Regulator Standard Buck PWM

Description

The ISL85001EVAL1Z REV A kit is intended for use by

individuals with requirements for Point-of-Load applications

sourcing from 4.5V to 25V. The ISL85001EVAL1Z evaluation

board is used to demonstrate the performance of the

ISL85001 standard buck regulator.

The ISL85001 is offered in a 4mmx3mm 12 Ld DFN package

with 1mm maximum height. The complete converter

occupies less than 0.425in2area.

Features

• Standard Buck Controller with Integrated Switching Power

MOSFET

• Integrated Boot Diode

• Input Voltage Range

- Fixed 5V ±10%

- Variable 5.5V to 25V

• PWM Output Voltage Adjustable from 0.6V to 19V with

Continuous Output Current up to 1A

• Voltage Mode Control with Voltage Feed-Forward

• Fixed 500kHz Switching Frequency

• Externally Adjustable Soft-Start Time

• Output Undervoltage Protection

• Enable Inputs

• PGOOD Output

• Overcurrent Protection

• Thermal Overload Protection

• Internal 5V LDO regulator

Applications

• General Purpose

• WLAN Cards-PCMCIA, Cardbus32, MiniPCI

Cards-Compact Flash Cards

• Hand-Held Instruments

• LCD Panel

• Set-top Box

What’s Inside

The Evaluation Board Kit contains the following materials:

• The ISL85001 EVAL REV A board

• The ISL85001 datasheet

• This EVAL KIT document

Recommended Equipment

The Following Materials are Recommended to Perform

Testing:

• 0V to 25V Power Supply with at Least 5A Source Current

Capability, Battery, Notebook AC Adapter

• One Electronic Load Capable of Sinking Current up to 5A

• Digital Multimeters (DMMs)

• 100MHz Quad-Trace Oscilloscope

• Signal Generator

Quick Setup Guide

1. Ensurethatthecircuitiscorrectlyconnectedtothesupply

and loads prior to applying any power.

2. Connect the bias supply to VIN, the plus terminal to TP1

(VIN) and the negative return to TP2 (GND).

3. Verify that SW1 is on ENABLE.

4. Turn on the power supply.

5. Verify the PG is on and the output voltage is 2.5V for

VOUT(TP3).

Evaluating the Other Output Voltage

The ISL85001EVAL kit outputs are preset to 2.5V; however,

it can be programmed using resistor dividers using

Equation 1:

The output voltage programming resistor R2will depend on

on the feedback resistor R1, as referred to in Figure 1. The

value of R1is typically between 1kΩand 10kΩ. If the output

voltage desired is 0.6V, then R2is left opened.

TABLE 1. SWITCH 1 SETTINGS

SW1 ENABLE OPERATING MODE

1 SW1 Enable or disable the buck controller

R2R10.6V⋅

VOUT 0.6V–

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

=(EQ. 1)

0.6V

REFERENCE

VOUT

FIGURE 1. EXTERNAL RESISTOR DIVIDER

December 1, 2008

AN1443.0Application Note

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 |Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

2AN1443.0

December 1, 2008

ISL85001EVAL1Z Schematic

POPULATE R30 IF VIN <6V ONLY

OFF

TP4

47UF

470PF

10K

220UF

1UF

0.1UF

COMP

ISL8500IRZ

VIN

GND

10UF

47PF

OPEN

10K

2.43K

VOUT

2N7002

ON EN

100K

VIN

VDD

PHASE

OPEN

3.16K

0.1UF

301

2200PF

BOOT

30K

C10

TP3

TP1

TP2

C11

SW1 2

C20

R30

R12

TP16

TP13

C21

C13

C12

R20

R21

SP1

SP2

COMP

GND

VIN

PHASE

BOOT

VDD

Application Note 1443

3AN1443.0

December 1, 2008

ISL85001EVAL1Z Bill of Materials

PART NUMBER QTY UNITS REFERENCE

DESIGNATOR DESCRIPTION MFR MANUFACTURER

PART

ISL85001EVAL1ZREVAPCB 1 ea See Label-Rename

Board PWB-PCB,

ISL85001EVAL1Z, REVA,

ROHS

TITAN ISL85001EVAL1ZREVAPCB

C1608X7R1H104K-T 1 ea C9 CAPACITOR, SMD, 0603,

0.10µF, 50V, 10%, X7R TDK C1608X7R1H104K

H1044-00104-16V10-T 1 ea C4 CAP, SMD, 0402, 0.1µF, 16V,

10%, X7R, ROHS MURATA GRM36X7R104K016AD

H1044-00222-50V10-T 1 ea C1 CAP, SMD, 0402, 2200pF,

50V, 10%, X7R, ROHS PANASONIC ECJ-0EB1H222K

H1044-00470-50V5-T 1 ea C2 CAP, SMD, 0402, 47pF, 50V,

5%, NPO, ROHS MURATA GRM36COG470J050AQ

H1044-00471-50V10-T 1 ea C3 CAP, SMD, 0402, 470pF, 50V,

10%, X7R, ROHS PANASONIC ECJ-0EB1H471K

H1045-00105-6R3V10-T 1 ea C8 CAP, SMD, 0603, 1µF, 6.3V,

10%, X5R, ROHS PANASONIC ECJ1VB0J105K

H1065-00106-25V10-T 1 ea C10 CAP, SMD,1206,10µF, 25V,

10%, X5R, ROHS VENKEL C1206X5R250-106KNE

H1082-00476-16V20-T 1 ea C12 CAP, SMD, 1210, 47µF, 16V,

20%, x5R, ROHS TDK C3225X5R1C476M

IHLP2525CZER220M11 1 ea L1 COIL-PWR INDUCTOR,

SMD, 6.9x6.5, 22µH, 20%,

7A, ROHS

VISHAY IHLP2525CZER220M11

131-4353-00 2 ea SP1, SP2 CONN-SCOPEPROBETEST

PT, COMPACT, PCB MNT,

ROHS

TEKTRONIX 131-4353-00

1514-2 4 ea TP1 to TP4 CONN-TURRET, TERMINAL

POST, TH, ROHS KEYSTONE 1514-2

5002 2 ea TP13, TP16 CONN-MINI TEST POINT,

VERTICAL, WHITE, ROHS KEYSTONE 5002

B340LB-13-F-T 1 ea D1 DIODE-SCHOTTKY, SMD,

SMB, 2P, 40V, 3A LOW VF,

ROHS

DIODES INC. B340LB-13-F

LTST-C170CKT 1 ea D3 LED-GaAs RED, SMD,

2x1.25mm,100mW, 40mA,

10mcd, ROHS

LITEON/VISHA

YLTST-C170CKT

ISL85001IRZ 1 ea U1 IC-2A BUCK REGULATOR,

12P, DFN, 4x3, ROHS INTERSIL ISL85001IRZ

2N7002-7-F-T 1 ea Q4 TRANSISTOR, N-CHANNEL,

3LD, SOT-23, 60V, 115mA,

ROHS

DIODES,INC. 2N7002-7-F

H2510-01002-1/16W1-T 1 ea R2 RES,SMD, 0402, 10k,1/16W,

1%, TF, ROHS PANASONIC ERJ-2RKF1002

H2510-01003-1/16W1-T 1 ea R12 RES, SMD, 0402, 100k,

1/16W, 1%, TF, ROHS PANASONIC ERJ2RKF1003

H2510-03002-1/16W1-T 1 ea R1 RES,SMD, 0402, 30k,1/16W,

1%, TF, ROHS YAGEO RC0402FR-0730KL

H2510-03010-1/16W1-T 1 ea R3 RES, SMD, 0402, 301Ω,

1/16W, 1%, TF, ROHS PANASONIC ERJ-2RKF3010X

Application Note 1443

4AN1443.0

December 1, 2008

H2510-03161-1/16W1-T 1 ea R4 RES, SMD, 0402, 3.16k,

1/16W, 1%, TF, ROHS VENKEL CR0402-16W-3161FT

H2511-01002-1/10W1-T 1 ea R21 RES, SMD, 0603,10k, 1/10W,

1%, TF, ROHS KOA RK73H1JT1002F

H2511-02431-1/10W1-T 1 ea R20 RES, SMD, 0603, 2.43k,

1/10W, 1%, TF, ROHS VENKEL CR0603-10W-2431FT

H2511-DNP 0 ea R30 RES, SMD, 0603, DNP-

PLACE HOLDER, ROHS

GT11MSCBE-T 1 ea SW1 SWITCH-TOGGLE, SMD,

ULTRAMINI, 1P, SPST MINI C&K

COMPONENTS GT11MSCKE

4-40x1/2-SCREW 4 ea Four corners SCREW, 4-40x1/2in, PAN,

NYLON, PHILLIPS, ROHS

4-40x3/4-STANDOFF 4 ea Four corners STANDOFF, 4-40x3/4in, F/F,

HEX, NYLON KEYSTONE 1902D

5x8-STATIC-BAG 1 ea Place assy in bag. BAG, STATIC, 5x8, ZIP LOC INTERSIL 212403-013

DNP 0 ea C11, C13, C20, C21 DO NOT POPULATE OR

PURCHASE

LABEL-RENAME BOARD 1 ea RENAME PCB TO:

ISL85001EVAL1Z LABEL, TO RENAME BRD

LABEL-SERIAL NUMBER 1 ea LABEL, FOR SERIAL

NUMBER AND BOM REV #

ISL85001EVAL1Z Bill of Materials(Continued)

PART NUMBER QTY UNITS REFERENCE

DESIGNATOR DESCRIPTION MFR MANUFACTURER

PART

Application Note 1443

5AN1443.0

December 1, 2008

ISL85001EVAL1Z Board Layout

FIGURE 2. TOP COMPONENTS

FIGURE 3. TOP LAYER ETCH

ISL85001EVAL1Z

Application Note 1443

Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to

verify that the Application Note or Technical Brief is current before proceeding.

For information regarding Intersil Corporation and its products, see www.intersil.com

AN1443.0

December 1, 2008

FIGURE 4. BOTTOM LAYER COMPONENTS (MIRRORED)

FIGURE 5. BOTTOM LAYER ETCH (MIRRORED)

ISL85001EVAL1Z Board Layout (Continued)

Application Note 1443

Inhaltsverzeichnis

Andere Intersil Hauptplatine Handbücher

Intersil

Intersil ISL62381 Bedienungsanleitung

Intersil

Intersil ISL8201M Bedienungsanleitung

Intersil

Intersil ISL78205EVAL1Z Handbuch

Intersil

Intersil ISL54207EVAL1Z Bedienungsanleitung

Intersil

Intersil HI5905EVAL2 Bedienungsanleitung

Intersil

Intersil ISLVERSALDEMO2Z Bedienungsanleitung

Intersil

Intersil ISL70321SEHEV Z Series Bedienungsanleitung

Intersil

Intersil ISL28023EVAL1Z Bedienungsanleitung

Intersil

Intersil ISL54200EVAL1Z Bedienungsanleitung

Intersil

Intersil ISL55141 Bedienungsanleitung

Intersil

Intersil ISL73041SEHEV1Z Bedienungsanleitung

Intersil

Intersil ISL6442 Bedienungsanleitung

Intersil

Intersil ISL8026EVAL3Z Bedienungsanleitung

Intersil

Intersil ISL9214AEVAL1Z Gebrauchsanweisung

Intersil

Intersil ISL70003ASEHEV2Z Bedienungsanleitung

Intersil

Intersil ISL54211EVAL1Z Bedienungsanleitung

Intersil

Intersil ISL6294AEVAL1Z Gebrauchsanweisung

Intersil

Intersil ISL70002SEHEVAL3Z Bedienungsanleitung

Intersil

Intersil ISL68137-61P-EV1Z Einrichtungshandbuch

Intersil

Intersil ISL45042EVAL1Z Bedienungsanleitung

Intersil

Intersil ISL9220IRTZEVAL1Z Montage- und Bedienungsanleitung

Intersil

Intersil SL71010BM50EV1Z Bedienungsanleitung

Intersil

Intersil ISL97519IUZ-EVALZ Gebrauchsanweisung

Intersil

Intersil ISL32740EVAL1Z Bedienungsanleitung

Beliebte Hauptplatine Handbücher anderer Marken

DFI

DFI SD170 Bedienungsanleitung

ASROCK

ASROCK ROMED8-2T Bedienungsanleitung

Asus

Asus P2L97A Bedienungsanleitung

Winmate

Winmate IC70 Bedienungsanleitung

Asus

Asus MES-B Bedienungsanleitung

Grantech

Grantech SYS8F377VGGA-3OMN Bedienungsanleitung

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Bedienungsanleitung

Gigabyte

Gigabyte GA-9IVDT Bedienungsanleitung

Texas Instruments

Texas Instruments ADS8372EVM Bedienungsanleitung

Commell

Commell MS-C73 Bedienungsanleitung

IBT Technologies

IBT Technologies MB860 Bedienungsanleitung

Nvidia

Nvidia TEGRA DG-04927-001_V01 Bedienungsanleitung

Biostar

Biostar M7VIT Bravo Bedienungs- und Montageanleitung

Intel

Intel D33217CK Bedienungsanleitung

Asus

Asus F1A55-M LX PLUS R2.0 Bedienungsanleitung

EPC

EPC EPC9147C Bedienungsanleitung

Asus

Asus EX-B760M-V5 D4 Bedienungsanleitung

EPOX

EPOX MU-8KHA0010 Bedienungsanleitung