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uP9626P

6A Dual-Channel, Wide Input Range CC/CV Synchronous Rectified Buck Converter

Datasheets PDF

General Description

The uP9626P is a high-efficiency synchronous-rectified buck converter with internal power switch. With internal low RDS(ON) switches, the high-efficiency buck converter is capable of delivering up to 6.0A output current for charger interface and a wide input voltage range from 4.75V to 36V.That operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode, function provides a current limitation function. The output voltage ranges from 3V to 21V for portable charger devices application.

Other features for the buck converter include internal softstart, adjust operating frequency from 100kHz to 500kHz, adjust output CC(Constant Current) current limit, adjust input current limit setting, adjust output total current limit for dual channel application ,chip enable, built in fixed and adjustable line-compensation, short circuit protection, over voltage, and over temperature protections. It is available in a space WQFN4x4-24L package.

Pin Configuration & Typical Application Circuit


uP9626PQMG


uP9626P Application Circuit for Output Total Current Limit


uP9626P Application Circuit for Input Current Limit

Feature

  • 4.75 to 36V Wide Input Voltage Range
  • Up to 6.0A Output Current
  • CV/CC Mode Control (Constant Voltage and Constant Current)
  • Adjust Output Total Current Limit for Dual Channel Application
  • Adjust Input Current Limit Setting
  • Output Voltage Range: 3V to 21V
  • Default Output Voltage Accuracy: ± 1.5%
  • Built-In Internal VREF = 1.03V Accuracy: ± 1%
  • Frequency Adjustable: 100kHz to 500kHz
    • 0~6A Single/Dual-Channel Application at Fs = 100kHz
    • 0~3A Single-Channel Application at Fs = 200kHz ~ 500kHz
  • Up to 98% Conversion Efficiency
  • Internal Soft Start Time: 20ms at FS =100kHz, 4ms at FS =500kHz
  • Adjustable Line-Compensation
  • Adjustable External Constant Current Setting
  • Constant Current Limit Accuracy with RSENSE: ±10%
  • Output Under Voltage and Short Circuit Protection
  • Input and Output Over Voltage Protection
  • Over Temperature Protection
  • WQFN4x4-24L Package
  • RoHS Compliant and Halogen Free

Application

  • PDA Like Device Car Charger
  • Portable Charging Devices
  • Wall Adaptors