LTC1522CMS8 查看數據表（PDF） - Linear Technology

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LTC1522CMS8

Micropower, Regulated 5V Charge Pump DC/DC Converter

Linear Technology 

LTC1522

TYPICAL APPLICATION

Programmable 5V/3V SIM Interface Supply for GSM Cellular Phones

D1

Q1

3V

R1

A

470k

+

GSM

CONTROLLER

1 NC

2 VIN

NC 8

VOUT 3

LTC1522

B 7 SHDN GND 6

10µF 4 C+

C– 5

0.22µF

+

10µF

TRUTH TABLE

AB

V CC

0 0 NOT USED

01

3V

10

5V

1 1 SHUTDOWN

VCC = 5V OR 3V

(SEE TRUTH TABLE)

D1 = BAS70-05

Q1 = Si6943DQ

LEVEL SHIFT

VCC

RST

CLK SIM CARD

I/O

GND

1522 TA03

RELATED PARTS

PART NUMBER

LTC1144

LTC1262

LTC1514/15

LTC1516

LTC1517-5

LTC1555/56

LTC660

DESCRIPTION

20mA Switched Capacitor Converter for Up to 20V Inputs

5V to 12V Regulated Switched Capacitor Converter

Step-Up/Step-Down Switched Capacitor DC/DC Converters

Micropower, Regulated 5V Charge Pump DC/DC Converter

Micropower, Regulated 5V Charge Pump DC/DC Converter

SIM Power Supply and Level Translator

100mA CMOS Voltage Converter

COMMENTS

Includes Micropower Shutdown (8µA)

Up to 30mA at Regulated Output

VIN 2V to 10V, VOUT is Fixed or Adjustable, IOUT to 50mA

IOUT = 20mA (VIN ≥ 2V), IOUT = 50mA (VIN ≥ 3V)

LTC1522 Without Shutdown and Packaged in SOT-23

Step-Up/Step-Down SIM Power Supply and Level Translators

5V to – 5V Conversion with Low Voltage Loss

8

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900

FAX: (408) 434-0507q TELEX: 499-3977 q www.linear-tech.com

1522f LT/TP 0198 4K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1997

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