Power Switch IC

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uP7561Q

Two-Channel Input Power Management Controller

Datasheets PDF

General Description

The uP7561Q is a 2-channel input power management controller specifically designed for dynamic input power switching application and under voltage boot application. It supports wide input voltage range from 2.7V~13.2V. The power for internal logic circuit is supported from input voltage by integrated charge pump circuit.

The uP7561Q has two embedded drivers to drive the external power MOSFET, and it also provides two integrated MOSFETs as internal power paths for application flexibility. The VIN1 internal power path supports maximum 200mA continuous current capability, and the VIN2 internal power path supports maximum 1A continuous current capability.

The output voltage of uP7651Q is switched between VIN1 and VIN2 according to SWITCH# logic input. The STEER logic input controls both DRV1 & DRV2 to turn on at the same time if the under voltage boot condition is detected.

The uP7561Q provides adjustable soft-start function to prevent the surge current during power up. The uP7561Q is available in WQFN3x3-20L package.

Pin Configuration & Typical Application Circuit


Fast Switching Application

Slow Switching Application

Feature

  • VIN Operating Range: 2.7V to 13.2V
  • Integrated Charge Pump for VCC, DRV1 and DRV2
  • Current Capability for Internal Power Path
    • Maximum 200mA Continuous Current for VIN1
    • Maximum 1A Continuous Current for VIN2
  • 50mV Voltage Drop for Internal Path Application
  • Two Embedded Driver Outputs for External Power MOSFET Control
  • Adjustable Soft-Start
  • RoHS Compliant and Halogen Free

Application

  • Desktop Graphic Card