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AAT4650 - 5V/3V PC Card Power Switch

General Description

The AAT4650 SmartSwitch™ is a single channel PC Card (PCMCIA) power switch.

It is used to select between two different voltage inputs, each between 2.7V and 5.5V.

An internal switch powers the circuitry from whichever input voltage is higher.

Key Features

  • SmartSwitch™ 2.7V to 5.5V Input voltage range 85mΩ (5V) typical RDS(ON) Low quiescent current 15µA (typ) Reverse-blocking switches Short-circuit protection Over-temperature protection FAULT flag output Temp range -40 to 85°C 8 pin SOP or TSSOP package Preliminary Information.

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Datasheet Details

Part number AAT4650
Manufacturer Advanced Analogic Technologies
File Size 428.71 KB
Description 5V/3V PC Card Power Switch
Datasheet download datasheet AAT4650 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AAT4650 5V/3V PC Card Power Switch General Description The AAT4650 SmartSwitch™ is a single channel PC Card (PCMCIA) power switch. It is used to select between two different voltage inputs, each between 2.7V and 5.5V. An internal switch powers the circuitry from whichever input voltage is higher. The device's output, VCC, is slew rate controlled and current limited, in compliance with PC Card specifications. The current limit response time to a short circuit is typically 1µs. The internal P-Channel MOSFET switches are configured to break before make, that is, both switches cannot be closed at the same time. Controlled by a 2 bit parallel interface, the four states for VCC are VCC5, VCC3, Hi-impedance, or Ground. When in the ground state, VCC is pulled to ground by a 5kΩ resistor.