LTC1504ACS8-3.3 データシートの表示（PDF） - Linear Technology

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LTC1504ACS8-3.3

500mA Low Voltage Step-Down Synchronous Switching Regulator

Linear Technology 

LTC1504A

TYPICAL APPLICATIONS

High Efficiency 5V to 2.5V Converter with Current Limit

RIMAX*

SHDN

VCC

5V +

CIN

IMAX SHDN

VCC

SW

1µF

LTC1504A

GND

FB

SS COMP

LEXT

MBRS0530L

11.8k

+

VOUT

2.5V

COUT

0.1µF

7.5k

0.01µF

220pF

12.1k

CIN: AVX TPSE107M016R0125

COUT: SANYO 16CV220GX

LEXT: COILCRAFT DO3316-473

*SELECT RIMAX VALUE USING CURRENT LIMIT THRESHOLD GRAPH ON PAGE 3

1504A • TA03

TERMPWR

SCSI-2 Active Terminator

NC

IMAX SHDN

LEXT

VCC

SW

4.7µF

CERAMIC

LTC1504A

GND

FB

SS COMP

15k

+

12k

110Ω

•••

110Ω

110Ω

110Ω

110Ω

COUT

18

TO

27

LINES

NC

COUT: AVX TPSC107M006R0150

LEXT: SUMIDA CD54-470

7.5k

0.01µF

220pF

1504A • TA04

PACKAGE DESCRIPTION Dimensions is inches (millimeters) unless otherwise noted.

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

0.189 – 0.197*

(4.801 – 5.004)

8

7

6

5

0.010

(0.254

–

–

0.020

0.508)

×

45°

0.008 – 0.010

(0.203 – 0.254)

0.053 – 0.069

(1.346 – 1.752)

0°– 8° TYP

0.016 – 0.050

0.406 – 1.270

0.014 – 0.019

(0.355 – 0.483)

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

0.228 – 0.244

(5.791 – 6.197)

0.004 – 0.010

(0.101 – 0.254)

0.150 – 0.157**

(3.810 – 3.988)

0.050

(1.270)

TYP

1

2

34

SO8 0996

RELATED PARTS

PART NUMBER

LTC1174

LTC1430

LTC1433/LTC1434

LTC1474

LT1507

LTC1627

DESCRIPTION

600mA, High Efficiency Step-Down Converter

High Power Step-Down DC/DC Controller

450mA, Low Noise Current Mode Step-Down Converters

Low Quiescent Current, High Efficiency Step-Down Converter

1.5A, 500kHz Monolithic Buck Regulator

Monolithic Synchronous Step-Down Switching Regulator

COMMENTS

Nonsynchronous, Better Low Load Efficiency

5V to 1.xV – 3.xV Voltage Conversion for High End Processors

Nonsynchronous, Better Low Load Efficiency

10µA Standy Current, 92% Efficiency, MSOP Package

Nonsynchronous, 1.5A Max Current

2.65V to 8.5V Input Range, 95% Efficiency, SO-8 Package

12 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

1504afs, sn1504a LT/TP 1098 4K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1997

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