C1608X7R1H104K-T [INTERSIL]

1A Regulator Standard Buck PWM; 1A稳压器标准降压PWM


型号：	C1608X7R1H104K-T
厂家：	Intersil
描述：	1A Regulator Standard Buck PWM 1A稳压器标准降压PWM 稳压器
文件：	总6页 (文件大小：282K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ISL85001EVAL1Z: 1A

Regulator Standard Buck PWM

Application Note

December 1, 2008

AN1443.0

Description

Recommended Equipment

The Following Materials are Recommended to Perform

Testing:

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.

• 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)

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

with 1mm maximum height. The complete converter

occupies less than 0.425in area.

• 100MHz Quad-Trace Oscilloscope

• Signal Generator

Features

• Standard Buck Controller with Integrated Switching Power

MOSFET

Quick Setup Guide

1. Ensure that the circuit is correctly connected to the supply

and loads prior to applying any power.

• Integrated Boot Diode

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

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

• Input Voltage Range

- Fixed 5V ±10%

- Variable 5.5V to 25V

3. Verify that SW1 is on ENABLE.

4. Turn on the power supply.

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

Continuous Output Current up to 1A

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

VOUT(TP3).

• Voltage Mode Control with Voltage Feed-Forward

• Fixed 500kHz Switching Frequency

• Externally Adjustable Soft-Start Time

• Output Undervoltage Protection

• Enable Inputs

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:

⋅ 0.6V

(EQ. 1)

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

– 0.6V

• PGOOD Output

OUT

• Overcurrent Protection

The output voltage programming resistor R will depend on

• Thermal Overload Protection

• Internal 5V LDO regulator

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

value of R is typically between 1kΩ and 10kΩ. If the output

voltage desired is 0.6V, then R is left opened.

Applications

OUT

• General Purpose

• WLAN Cards-PCMCIA, Cardbus32, MiniPCI

Cards-Compact Flash Cards

• Hand-Held Instruments

• LCD Panel

0.6V

REFERENCE

• Set-top Box

FIGURE 1. EXTERNAL RESISTOR DIVIDER

TABLE 1. SWITCH 1 SETTINGS

What’s Inside

The Evaluation Board Kit contains the following materials:

• The ISL85001 EVAL REV A board

• The ISL85001 datasheet

SW1

ENABLE

OPERATING MODE

Enable or disable the buck controller

SW1

• This EVAL KIT document

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.

Application Note 1443

ISL85001EVAL1Z Schematic

VDD

30K

2200PF

47PF

10K

VIN

GND

TP1

TP2

301

470PF

3.16K

TP16

2N7002

VIN

COMP

VOUT

TP3

0.1UF

PHASE

BOOT

PHASE

BOOT

VDD

SP2

SP1

0.1UF

GND

TP4

ISL8500IRZ

VDD

VIN

R30

OPEN

POPULATE R30 IF VIN <6V ONLY

SW1

OFF

AN1443.0

December 1, 2008

Application Note 1443

ISL85001EVAL1Z Bill of Materials

REFERENCE

DESIGNATOR

MANUFACTURER

PART

PART NUMBER

QTY UNITS

DESCRIPTION

See Label-Rename PWB-PCB,

MFR

TITAN

ISL85001EVAL1ZREVAPCB

Board

ISL85001EVAL1Z, REVA,

ROHS

C1608X7R1H104K-T

H1044-00104-16V10-T

H1044-00222-50V10-T

H1044-00470-50V5-T

H1044-00471-50V10-T

H1045-00105-6R3V10-T

H1065-00106-25V10-T

H1082-00476-16V20-T

IHLP2525CZER220M11

CAPACITOR, SMD, 0603,

0.10µF, 50V, 10%, X7R

TDK

C1608X7R1H104K

GRM36X7R104K016AD

ECJ-0EB1H222K

CAP, SMD, 0402, 0.1µF, 16V, MURATA

10%, X7R, ROHS

CAP, SMD, 0402, 2200pF,

50V, 10%, X7R, ROHS

PANASONIC

CAP, SMD, 0402, 47pF, 50V, MURATA

5%, NPO, ROHS

GRM36COG470J050AQ

ECJ-0EB1H471K

CAP, SMD, 0402, 470pF, 50V, PANASONIC

10%, X7R, ROHS

CAP, SMD, 0603, 1µF, 6.3V,

10%, X5R, ROHS

PANASONIC

ECJ1VB0J105K

C10

C12

CAP, SMD,1206,10µF, 25V,

10%, X5R, ROHS

VENKEL

C1206X5R250-106KNE

C3225X5R1C476M

IHLP2525CZER220M11

CAP, SMD, 1210, 47µF, 16V, TDK

20%, x5R, ROHS

COIL-PWR INDUCTOR,

SMD, 6.9x6.5, 22µH, 20%,

7A, ROHS

VISHAY

131-4353-00

SP1, SP2

CONN-SCOPE PROBE TEST TEKTRONIX

PT, COMPACT, PCB MNT,

ROHS

131-4353-00

1514-2

TP1 to TP4

TP13, TP16

CONN-TURRET, TERMINAL KEYSTONE

POST, TH, ROHS

1514-2

5002

CONN-MINI TEST POINT,

VERTICAL, WHITE, ROHS

KEYSTONE

5002

B340LB-13-F-T

DIODE-SCHOTTKY, SMD,

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

ROHS

DIODES INC.

B340LB-13-F

LTST-C170CKT

LED-GaAs RED, SMD,

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

10mcd, ROHS

LITEON/VISHA LTST-C170CKT

ISL85001IRZ

2N7002-7-F-T

IC-2A BUCK REGULATOR,

12P, DFN, 4x3, ROHS

INTERSIL

ISL85001IRZ

2N7002-7-F

TRANSISTOR, N-CHANNEL, DIODES,INC.

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

ROHS

H2510-01002-1/16W1-T

H2510-01003-1/16W1-T

H2510-03002-1/16W1-T

H2510-03010-1/16W1-T

RES, SMD, 0402, 10k, 1/16W, PANASONIC

1%, TF, ROHS

ERJ-2RKF1002

ERJ2RKF1003

R12

RES, SMD, 0402, 100k,

1/16W, 1%, TF, ROHS

PANASONIC

RES, SMD, 0402, 30k, 1/16W, YAGEO

1%, TF, ROHS

RC0402FR-0730KL

ERJ-2RKF3010X

RES, SMD, 0402, 301Ω,

PANASONIC

1/16W, 1%, TF, ROHS

AN1443.0

December 1, 2008

Application Note 1443

ISL85001EVAL1Z Bill of Materials (Continued)

REFERENCE

DESIGNATOR

MANUFACTURER

PART

PART NUMBER

QTY UNITS

DESCRIPTION

MFR

VENKEL

H2510-03161-1/16W1-T

RES, SMD, 0402, 3.16k,

1/16W, 1%, TF, ROHS

CR0402-16W-3161FT

H2511-01002-1/10W1-T

H2511-02431-1/10W1-T

H2511-DNP

R21

RES, SMD, 0603, 10k, 1/10W, KOA

1%, TF, ROHS

RK73H1JT1002F

R20

RES, SMD, 0603, 2.43k,

1/10W, 1%, TF, ROHS

VENKEL

CR0603-10W-2431FT

R30

RES, SMD, 0603, DNP-

PLACE HOLDER, ROHS

GT11MSCBE-T

SW1

SWITCH-TOGGLE, SMD,

ULTRAMINI, 1P, SPST MINI

C&K

COMPONENTS

GT11MSCKE

4-40x1/2-SCREW

4-40x3/4-STANDOFF

Four corners

SCREW, 4-40x1/2in, PAN,

NYLON, PHILLIPS, ROHS

STANDOFF, 4-40x3/4in, F/F, KEYSTONE

HEX, NYLON

1902D

5x8-STATIC-BAG

DNP

Place assy in bag. BAG, STATIC, 5x8, ZIP LOC

INTERSIL

212403-013

C11, C13, C20, C21 DO NOT POPULATE OR

PURCHASE

LABEL-RENAME BOARD

LABEL-SERIAL NUMBER

RENAME PCB TO: LABEL, TO RENAME BRD

ISL85001EVAL1Z

LABEL, FOR SERIAL

NUMBER AND BOM REV #

AN1443.0

December 1, 2008

Application Note 1443

ISL85001EVAL1Z Board Layout

ISL85001EVAL1Z

FIGURE 2. TOP COMPONENTS

FIGURE 3. TOP LAYER ETCH

AN1443.0

December 1, 2008

Application Note 1443

ISL85001EVAL1Z Board Layout (Continued)

FIGURE 4. BOTTOM LAYER COMPONENTS (MIRRORED)

FIGURE 5. BOTTOM LAYER ETCH (MIRRORED)

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

C1608X7R1H104K-T [INTERSIL]

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