BL8532B - BELLING

BL8532B White LED PFM Step-Up DC-DC Converter

Current feedback pin Output pin, power supply for internal circuits Chip enable pin (active high) Switching pin(Nch open drain) Ground pin http://www.belling.com.cn - 1Total 13 Pages 2/20/2013 Functional block diagram ： BL8532B Absolute maximum ratings: PARAMETER VIN Input Voltage Lx Pin voltage CE Pin voltage IFB output voltage Lx Pin current C.

Features

• Low start voltage：0.8V ( at Iout=1mA)；
• Output Current range：0~ 500mA；
• Output Current accuracy：±10%；
• High Efficiency：82%(Type)；
• PACKAGE： SOT-89-5. Applications：
• Power source for white LED
• Supply constant current
• Power source for a single or dual-cell battery-powered equipments Selection guide： BL8532B-XX X XX Package: SN：SOT-89-5 Pin configuration： □□BL8532B- PSN Temperature range: C：standard P：standard （Pb free） Feedback voltage: 10……100mV 20……200mV 25……250mV 30……300mV 35……350mV 40……400mV Pin No. 1 2 3 4 5 Symbol IFB Vout CE Lx GND Description Current feedback pin Output.