LT1173CS8

更新时间： 2024-11-19 22:55:47

品牌	Logo	应用领域
凌特 - Linear		转换器
页数	文件大小	规格书
16页	322K
描述
Micropower DC/DC Converter Adjustable and Fixed 5V, 12V

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LT1173CS8 数据手册

LT1173

Micropower

DC/DC Converter

Adjustable and Fixed 5V, 12V

EATURE

DESCRIPTIO

■

Operates at Supply Voltages From 2.0V to 30V

Consumes Only 110µA Supply Current

Works in Step-Up or Step-Down Mode

Only Three External Components Required

Low Battery Detector Comparator On-Chip

User-Adjustable Current Limit

Internal 1A Power Switch

Fixed or Adjustable Output Voltage Versions

Space Saving 8-Pin MiniDIP or SO8 Package

The LT1173 is a versatile micropower DC-DC converter.

The device requires only three external components to

deliver a fixed output of 5V or 12V. Supply voltage ranges

from2.0Vto12Vin step-upmodeandto30Vinstep-down

mode. The LT1173 functions equally well in step-up, step-

down or inverting applications.

The LT1173 consumes just 110µA supply current at

standby, making it ideal for applications where low quies-

cent current is important. The device can deliver 5V at

80mA from a 3V input in step-up mode or 5V at 200mA

from a 12V input in step-down mode.

O U

PPLICATI

■

Flash Memory Vpp Generators

3V to 5V, 5V to 12V Converters

9V to 5V, 12V to 5V Converters

LCD Bias Generators

Peripherals and Add-On Cards

Battery Backup Supplies

Laptop and Palmtop Computers

Cellular Telephones

Portable Instruments

Switch current limit can be programmed with a single

resistor. An auxiliary gain block can be configured as a low

battery detector, linear post regulator, under voltage lock-

out circuit or error amplifier.

For input sources of less than 2V, use the LT1073.

and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATI S

Logic Controlled Flash Memory VPP Generator

VPP Output

L1*

100µH

1N5818

12V

100mA

47Ω

V_OUT

5V/DIV

SW1

LIM

1.07M^†

SANYO

LT1173

OS-CON

10µF

100

SW2

PROGRAM

5V/DIV

GND

124k^†

5ms/DIV

1173 TA02

1N4148

PROGRAM

LT1173 • TA01

*L1 = GOWANDA GA20-103K

COILTRONICS CTX100-4

EFFICIENCY = 81%

†

= 1% METAL FILM

NO OVERSHOOT

12 3 4 5 6 7...16

中文翻译

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与LT1173CS8相关器件

型号	品牌	获取价格	描述	数据表
LT1173CS8#PBF	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-12	Linear	获取价格	Micropower DC/DC Converter Adjustable and Fixed 5V, 12V
LT1173CS8-12#PBF	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-12#TR	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-12#TRPBF	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-5	Linear	获取价格	Micropower DC/DC Converter Adjustable and Fixed 5V, 12V
LT1173CS8-5#PBF	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-5#TR	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT1173CS8-5#TRPBF	Linear	获取价格	LT1173 - Micropower DC/DC Converter Adjustable and Fixed 5V, 12V; Package: SO; Pins: 8; Te
LT11743	Linear Systems	获取价格	High Efficiency Step-Down Switching Regulator Controllers

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