Datasheet > AAT3215IGV-285-T1

AAT3215IGV-285-T1

更新时间： 2022-11-27 06:49:16

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ANALOGICTECH		/
页数	文件大小	规格书
16页	285K
描述
150mA CMOS High Performance LDO

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AAT3215

150mA CMOS High Performance LDO

Functional Block Diagram

OUT

Over-Current

Protection

Over-Temperature

Protection

Error

Amplifier

BYP

Voltage

Reference

GND

The LDO regulator output has been specifically

optimized to function with low cost, low ESR ceram-

ic capacitors. However, the design will allow for

operation over a wide range of capacitor types.

Functional Description

The AAT3215 is intended for LDO regulator appli-

cations where output current load requirements

range from no load to 150mA.

The device enable circuit is provided to shutdown the

LDO regulator for power conservation in portable

products. The enable circuit has an additional output

capacitor discharge circuit to assure sharp applica-

tion circuit turn off upon device shutdown.

The advanced circuit design of the AAT3215 pro-

vides excellent input to output isolation, which

allows for good power supply ripple rejection char-

acteristics. To optimize for very low output self

noise performance, a bypass capacitor pin has

been provided to decrease noise generated by the

internal voltage reference. This bypass capacitor

will also enhance PSRR behavior. The two com-

bined characteristics of low noise and high PSRR

make the AAT3215 a truly high performance LDO

regulator especially well suited for circuit applica-

tions which are sensitive to their power source.

This LDO regulator has complete short circuit and

thermal protection. The integral combination of

these two internal protection circuits give the

AAT3215 a comprehensive safety system during

extreme adverse operating conditions. Device

power dissipation is limited to the package type

and thermal dissipation properties. Refer to the

thermal considerations discussion in the section for

details on device operation at maximum output cur-

rent loads.

3215.2002.03.0.91

1...4 5 678 9 10...16

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