MAX869L

PRODUCTION

2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown

Low-Resistance P-Channel Switches with Adjustable, Accurate Current Limit Protects Systems and USB

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Overview

  • Very Small Footprint (16-pin QSOP is the same size as an 8-pin SO)
  • Low Resistance: 45mΩ at 3V
  • ±21%-Accurate, User-Set Current Limit
  • 12µA (typ) Quiescent Current
  • 0.01µA (typ) Shutdown Current
  • 0.04µA (typ) Leakage to Output when Switch is Off
  • 2.7V to 5.5V Input Range
  • Thermal Shutdown
  • Active-Low FAULT Output

The MAX869L P-channel load switch features an accurate user-set current limit and low on-resistance. This switch is designed to protect your power source from shorts and surges by limiting current and preventing the system supply from being pulled low. The input voltage range is 2.7V to 5.5V.

The MAX869L features a 2A, 45mΩ switch controlled by a logic signal. Current-limit accuracy is ±21%, and can be set from 400mA to 2.4A using a single resistor.

The device has a low 12µA quiescent supply current, which reduces to 2µA max in shutdown. It features thermal-shutdown protection and a logic-signal output pin (active-low FAULT) that signals when there is an overcurrent or overtemperature condition.

Applications

  • Handheld Instruments (PDAs, Palmtops)
  • Notebook Computers
  • Palmtop Computers
  • Personal Communicators
  • Portable Medical Instrumentation
  • Universal Serial Bus (USB)

MAX869L
2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown
MAX869L: Typical Operating Circuit
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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
MOSFET & Gate Drivers 1
MAX890L PRODUCTION 1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown
Protection Switches & Controllers 2
MAX891L PRODUCTION Current-Limited, High-Side P-Channel Switches with Thermal Shutdown
MAX894L PRODUCTION Dual, Current-Limited, High-Side P-Channel Switches with Thermal Shutdown
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