TC1174

更新时间： 2024-11-25 22:39:47

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
12页	445K
描述
300mA CMOS LDO with Shutdown and VREF Bypass

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中文翻译

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数据手册

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TC1174 数据手册

TC1174

300mA CMOS LDO with Shutdown and V

Bypass

REF

Features

General Description

• Extremely Low Supply Current (50µA, Typ.)

• Very Low Dropout Voltage

The TC1174 is an adjustable output CMOS low dropout

regulator. Total supply current is typically 50µA at full

load (20 to 60 times lower than in bipolar regulators).

• 300mA Output Current

TC1174 key features include ultra low noise operation

(plus optional Bypass input); very low dropout voltage

(typically 270mV at full load) and internal feed-forward

compensation for fast response to step changes in

load. Supply current is reduced to 0.05µA (typical) and

• Adjustable Output Voltages

• Power Saving Shutdown Mode

• Bypass Input for Ultra Quiet Operation

• Over Current and Over Temperature Protection

• Space-Saving MSOP Package Option

falls to zero when the shutdown input is low.

OUT

The TC1174 incorporates both over temperature and

over current protection. The TC1174 is stable with an

output capacitor of only 1µF and has a maximum

output current of 300mA.

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

Typical Application

• Cellular/GSM/PHS Phones

• Linear Post-Regulators for SMPS

• Pagers

OUT

1µF

GND

SHDN

TC1174

470K

Device Selection Table

Shutdown

Control

(from Power

Control Logic)

Output

Junction

Temp. Range

Part Number Voltage

(V)

Package

ADJ

Bypass

470pF

BYPASS

470K

TC1174VOA Adjustable 8-Pin SOIC -40°C to +125°C

TC1174VUA Adjustable 8-Pin MSOP -40°C to +125°C

(Optional)

= V

— + 1

OUT

REF

[

]

Package Type

8-Pin MSOP

OUT

GND

SHDN

TC1174VUA

ADJ

Bypass

8-Pin SOIC

TC1174VOA

V_OUT

V_IN

GND

7 NC

6 SHDN

ADJ

5 Bypass

2002 Microchip Technology Inc.

DS21363B-page 1

12 3 4 5 6 7...12

中文翻译

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