BD9305AFVM

Datasheet 4.2V to 18V Input 1ch Buck Controller BD9305AFVM General Description BD9305AFVM is a 1-channel DC/DC converter controller. A Step-down DC/DC converter can be configured by BD9305AFVM. In addition, it has a built-in master-slave function which improves synchronization. Features  1ch PWM Controlled DC/DC Converter Controller  Built-in Soft Start Function  Built-in Master / Slave Function  Protection Circuits:  Under Voltage Lockout Protection Circuit  Thermal Shutdown Circuit  Short Protection Circuit of Timer Latch type Applications ・TV, Power Supply for the TFT-LCD Panels used for LCD TVs, Back Lights ・DSC, DVC, Printer, DVD ,DVD Recorder, General Consumer Equipment, etc. Key Specifications  Power Supply Voltage Range: 4.2V to 18V  Error Amplifier Feed Back Voltage: 1.25±1.6%  Oscillating Frequency Range: 100kHz to 800kHz  Standby Current: 0µA(Typ)  Operating Temperature Range: -40°C to +85°C Package W(Typ) x D(Typ) x H(Max) MSOP8 2.90mm x 4.00mm x 0.90mm Typical Application Circuit FB 8 1.25V Err OSC 1 RT 20kΩ 10000pF 5.1kΩ COMP 7 GND 6 VCC 5 Soft Start Timer Latch Shut Down VREF UVLO TSD Shut Down PWM DRV VCC VCC 10µF 0.5Ω (When Output Short, Protect Fall VCC) 47µH 20uF 30ｋΩ ENABLE 2 CT 200pF 3 ENB 10kΩ 4 GD VCC Figure 1. Typical Application Circuit 10ｋΩ VOUT 1kΩ 470pF ○Product structure：Silicon monolithic integrated circuit www.rohm.com © 2014 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 ○This product ha...