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參數(shù)資料
| 型號： | AAT1204 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH VAUX SWITCH |
| 中文描述： | 400毫安多輸入低壓差穩(wěn)壓器與沃克斯開關 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 213K |
| 代理商： | AAT1204 |
Advanced Analog Technology, Inc.
–
–
Advanced Analog Technology, Inc
. V 1.0
AAT1204
400-mA MULTI-INPUT LOW-DROPOUT REGULATOR
WITH V
AUX
SWITCH
Features
z
Complete Power Management
z
Automatic Input Voltage Selection
z
Input Voltage Source Detector With
Hysteresis
z
400-mA Load Current Capability With
VCC50 or VSB50 or AUX33 Input Source
z
Integrated Low r
DS (on)
Switch
z
Regulated Output 3.3V (fixed)
z
Output Short Circuit Protection
Pin Configuration
Description
The AAT1204 is a multi-input low-dropout
regulator that provides constant output supply
3.3V at the output capable of driving a 400-mA
load.
The AAT1204 provides regulated power output
for systems that have multiple input sources and
require
constant
voltage
low-dropout voltage. This is a intelligent power
source selection device with a low-dropout
regulator for either VCC50 or VSB50 inputs, and
a low-resistance bypass switch for the AUX33
input.
Transitions may occur from one input supply to
another without generating a glitch outside of the
specification range on the 3.3-V output. The
device has an incorporated reverse-blocking
scheme to prevent excess leakage from the input
terminals in the event that the output voltage is
greater than the input voltage.
The input voltage is prioritized in the following
order: VCC50, VSB50, AUX33.
source
with
a
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