LR256 - LRC

LR256 White LED Step-Up Converter

Symbol Description Symbol 5 1：Switch 4 5：Supply SW Voltage VIN 2：GND GND 3：Feedback FB 4：Start-Up CE 1/8 Block Diagram LESHAN RADIO COMPANY, LTD. LR256 PIN1(SW) PWM CONTROL Fosc CURRENT SENSE + SLOPE COMP + 2 1 0 0 PIN5(Vin) 2 VREF 21 1 + gm 2 11 2 PIN2(GND) D256 PIN4 SHUTDOWN PIN3(FB) 2/8 LESHAN RADIO COMPANY, LTD. LR256 El.

Features

4 5：Supply SW Voltage VIN 2：GND GND 3：Feedback FB 4：Start-Up CE 1/8 Block Diagram LESHAN RADIO COMPANY, LTD. LR256 PIN1(SW) PWM CONTROL Fosc CURRENT SENSE + SLOPE COMP + 2 1 0 0 PIN5(Vin) 2 VREF 21 1 + gm 2 11 2 PIN2(GND) D256 PIN4 SHUTDOWN PIN3(FB) 2/8 LESHAN RADIO COMPANY, LTD. LR256 Electrical Characteristics Tamb = 25℃, VIN=3V，VCE=3V,unless otherwise specified. Parameter Test Conditions / Pins Minimum Operating Voltage Maximum Operating Voltage Feedback Voltage ISW=100mA, Duty Cycle=66% FB Pin Bias Current Supply Current Switching Frequency Maximum Du.