GM6655-3.0ST25RG datasheet, PDF

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GM6655-3.0ST25RG: Description600mA LOW DROPOUT CMOS VOLTAGE REGULATOR WITH ENABLE FUNCTION; File Size110KB，7 Pages; ManufacturerGamma Microelectronics ( APM ); Websitehttp://www.gamma-apm.com.tw/en/index.asp

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GM6655-3.0ST25RG Overview

600mA LOW DROPOUT CMOS VOLTAGE REGULATOR WITH ENABLE FUNCTION

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GM6655

600mA LOW DROPOUT CMOS VOLTAGE

REGULATOR WITH ENABLE FUNCTION

Description

The GM6655 series is a low-dropout linear regulator.

This series is specially designed for battery-operated

systems. The ground current is very low (50µA Typ),

that significantly extending battery life. Low power

consumption and high accuracy is achieved through

CMOS and programmable fuse technologies with the

output voltage range from 1.5V to 6.0V.

The GM6655 consists of a high-precision voltage

reference, an error correction circuit, and a current

limited output driver. With good transient responses,

output remains stable even during load changes. The

SHDN input enables the output to be turned off,

resulting in reduced power consumption.

Also, the GM6655 having high ripple rejection ratios,

the series can be used with power supply noise. A

470pF capacitor from the bypass input to ground

reduces noise present on the internal reference, which

in turn significantly reduces output noise. If output

noise is not a concern, this input may be left

unconnected. Larger capacitor values C

be used, but

results in a longer time period to rated output voltage

when power is initially applied.

The GM6655 incorporates both over-temperature and

over-current protection.

Features

Maximum output current up 600mA

Highly accurate output voltage:

±1.5%

Low power consumption

On-chip protections: Thermal, and

Short Circuit

Small input/output differential:

600mV at 600mA

Application

Battery Operated Systems

Portable Computers

Portable Caremas and Video Recorders

Reference Voltage Sources

Instruments

Pagers

Typical Application Circuits

GM6655-x.x

OUT

= 1µF

Enable

Shutdown

GM6655-Adj

OUT =

REF

(1+ R2/R1)

Adj

OUT

= 1µF

Enable

Shutdown

Figure 1 Fixed output version

Figure 2. Adjustable output version

Note: EN (Pin 3) maybe connected directly to V

(Pin1)

GM6655

V2.05

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