描述 Description

The uP9626P is a high-efficiency synchronous-rectifiedbuck converter with internal power switch. With internallow RDS(ON) switches, the high-efficiency buck converteris capable of delivering up to 6.0A output current for chargerinterface and a wide input voltage range from 4.75V to36V.That operates in either CV (Constant Output Voltage)mode or CC (Constant Output Current) mode, functionprovides a current limitation function. The output voltageranges from 3V to 21V for portable charger devicesapplication.

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

特性 Features

? 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

應(yīng)用 Application

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