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PDF AAT1201 Data sheet ( Hoja de datos )
| Número de pieza | AAT1201 | |
| Descripción | MULTI-INPUT LOW-DROPOUT REGULATOR | |
| Fabricantes | AAT | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AAT1201 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1201
250-mA MULTI-INPUT LOW-DROPOUT REGULATOR
WITH DUAL-OUTPUT POWER MANAGEMENT
Features
Description
z Complete Power Management
z Automatic Input Voltage Selection
The AAT1201 is a multi-input low-dropout
regulator (LDO) designed for LAN card. It
z Input Voltage Source Detector with Hysteresis provides dual constant output supply 3.3V & 2.5V
z 250-mA Load Current Capability with
VCC50 or VSB50 or AUX33 Input Source
at the output capable of driving a 250-mA load.
The output (OUT25) can be disabled by
z Integrated Low rDS(on) Switch
connecting EN25 pin to GND.
z Dual Regulated Output 3.3V (fixed) & 2.5V
(fixed)
The AAT1201 provides dual regulated power
output for systems with multiple input sources and
z Output Short Circuit Protection (SCP)
require dual constant voltage source with a
low-dropout voltage. This is an intelligent power
Pin Configuration
www.DataSheet4U.com
source selection device with a LDO regulator for
either VCC50 or VSB50 inputs, and a
low-resistance bypass switch for the AUX33
input.
The AAT1201 allows transitions to progress
smoothly from one input supply to another without
generating a glitch outside of the specified range
of the 3.3-V & 2.5-V output. The device is
equipped with an incorporated reverse-blocking
scheme to prevent excess leakage from the input
terminals in the event when the output voltage is
greater than the input voltage.
The input voltage is prioritized in the following
order: VCC50, VSB50, AUX33.
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– Advanced Analog Technology, Inc. –
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Advanced Analog Technology, Inc.
Block Diagram
AAT1201
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– Advanced Analog Technology, Inc. –
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Advanced Analog Technology, Inc.
Typical Characteristics
AAT1201
Fig. 11. 3.3V VCC50 Power Down (VSB=5V)
Fig. 12. 2.5V VCC50 Power Down (VSB=5V)
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– Advanced Analog Technology, Inc. –
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| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AAT1201.PDF ] | |
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