Datasheet > AAT3238IJS-2.8-T1

AAT3238IJS-2.8-T1

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		稳压器
页数	文件大小	规格书
14页	318K
描述
300mA MicroPower⑩ High Performance LDO Linear Regulator

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AAT3238IJS-2.8-T1 数据手册

浏览型号AAT3238IJS-2.8-T1的Datasheet PDF文件第5页

浏览型号AAT3238IJS-2.8-T1的Datasheet PDF文件第6页

浏览型号AAT3238IJS-2.8-T1的Datasheet PDF文件第7页

浏览型号AAT3238IJS-2.8-T1的Datasheet PDF文件第9页

浏览型号AAT3238IJS-2.8-T1的Datasheet PDF文件第10页

AAT3238

300mA MicroPower™

High Performance LDO Linear Regulator

Functional Block Diagram

OUT

Active

Feedback

Control

Over-Current

Protection

Over-

Temperature

Protection

Error

Amplifier

Fast

Start

Control

Voltage

Reference

BYP

GND

required. This rapid transient response behavior is

accomplished through the implementation of an

active error amplifier feedback control. This propri-

etary circuit design is unique to this MicroPower LDO

regulator.

Functional Description

The AAT3238 is intended for LDO regulator applica-

tions where output current load requirements range

from no load to 300mA.

The LDO regulator output has been specifically opti-

mized to function with low-cost, low-ESR ceramic

capacitors. However, the design will allow for opera-

tion over a wide range of capacitor types.

The advanced circuit design of the AAT3238 has

been specifically optimized for very fast start-up and

shutdown timing. This proprietary CMOS LDO has

also been tailored for superior transient response

characteristics. These traits are particularly important

for applications that require fast power supply timing,

such as GSM cellular telephone handsets.

A bypass pin has been provided to allow the addition

of an optional voltage reference bypass capacitor to

reduce output self noise and increase power supply

ripple rejection. Device self noise and PSRR will be

improved by the addition of a small ceramic capacitor

in this pin. However, increased values of C_BYPASS

may slow down the LDO regulator turn-on time.

The high-speed turn-on capability of the AAT3238 is

enabled through the implementation of a fast start

control circuit, which accelerates the power-up behav-

ior of fundamental control and feedback circuits with-

in the LDO regulator.

This LDO regulator has complete short-circuit and

thermal protection. The integral combination of these

two internal protection circuits gives the AAT3238 a

comprehensive safety system to guard against

extreme adverse operating conditions. Device power

dissipation is limited to the package type and thermal

Fast turn-off response time is achieved by an active

output pull-down circuit, which is enabled when the

LDO regulator is placed in the shutdown mode. This

active fast shutdown circuit has no adverse effect on

normal device operation.

dissipation properties.

Refer to the Thermal

The AAT3238 has very fast transient response char-

acteristics, which is an important feature for applica-

tions where fast line and load transient response is

Considerations section of this datasheet for details on

device operation at maximum output current loads.

3238.2006.11.1.6

1...5 6 789 10 11...14

下载PDF

与AAT3238IJS-2.8-T1相关器件

型号	品牌	描述	获取价格	数据表
AAT3238IJS-3.0-T1	ANALOGICTECH	300mA MicroPower⑩ High Performance LDO Linear	获取价格
AAT3238IJS-3.3-T1	ANALOGICTECH	300mA MicroPower⑩ High Performance LDO Linear	获取价格
AAT3238IJS-3.5-T1	ANALOGICTECH	300mA MicroPower⑩ High Performance LDO Linear	获取价格
AAT3239	ANALOGICTECH	500mA MicroPower LDO	获取价格
AAT3239ITS-1.5-T1	ANALOGICTECH	500mA MicroPower LDO	获取价格
AAT3239ITS-1.85-T1	ANALOGICTECH	500mA MicroPower LDO	获取价格