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AAT4621 - PC Card Current Limit Interface and Capacitor Charger

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General Description

The AAT4621 SmartSwitch family is a current limited P-channel MOSFET power switch designed for high-side load-switching applications in PC Card GSM/GPRS/3G modem cards.

Used in conjunction with a super capacitor, the AAT4621 will ensure that the power ratings of the PCMCIA host are not exceeded at any time.

Featuring two independent, programmable current limits and a power loop, the AAT4621 can ensure that the super capacitor can be charged without exceeding PCMCIA specifications.

Overview

DATA SHEET AAT4621 PC Card Current Limit Interface and Capacitor Charger.

Key Features

  • Operating Voltage Range: 3.0V to 5.5V.
  • Dual Independent Current Limits.
  • AAT4621: 75mA to 1200mA.
  • AAT4621-1: 150mA to 2400mA.
  • ±10% Current Accuracy.
  • Reverse Current Blocking Protection.
  • Power Loop.
  • Low Quiescent Current.
  • 40μA Typical.
  • 1.0μA Max with Switch Off.
  • 65m Typical RDS(ON) at 3V.
  • System READY Output with Externally Programmable Hysteresis.
  • Only 1.4V Needed for Enable Control Pin.
  • Un.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
AAT Logo AAT4621 PC Card Current Limit Interface and Capacitor Charger AAT

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