BD9227F

Datasheet 6V to 20V, 1A 1ch PWM Buck Converter Integrated FET BD9227F General Description The BD9227F is a 20V, 1A non-synchronous PWM duty control buck converter with integrated internal high-side 20V Power MOSFET. Operating frequency is 1.0MHz fixed by inner circuit. Current mode control with internal slope compensation simplifies the external compensation calculation and reduces component count while allowing the use of ceramic output capacitors. Additional protection features are included such as Over Current Protection, Thermal Shutdown and Under Voltage Lockout. The BD9227F is available in SOP8. Key Specifications  Input Voltage Range: 6V to 20 V  Ref. Precision: PWM=H: ±2.0 %(±1.0 %@Ta=25°C)  Max Output Current: 1A (Max.)  Switching Frequency: 1.0MHz (Typ.)  Operating Temperature Range: -40℃ to +85°C Packages SOP8 W(Typ) x D(Typ) x H(Max) 5.00mm x 6.20mm x 1.71mm Features ■ Wide Operating Input Range 6V to 20V ■ 20V/200mΩ Internal Power MOSFET ■ 1.0MHz Fixed Operating Frequency ■ Current Mode ■ Over Current Hiccup Period Protection ■ Under Voltage Locked Out(UVLO), Over Voltage Protection(OVP), Thermal Shut Down(TSD) ■ Available in SOP8 Package. SOP8 Applications  Home Appliance  VM Motor Typical Application Circuits VCC VOUT COUT: 10uF CVB: 0.1uF CVCC: 10uF L1:10uH D1 R1: 110k R2: 10k VB NON VCC PWM LX FB GND COMP BD9227F Figure 1. Typical Application Circuit CNON: 1uF PWM C2: 1.5nF R3: 33k ○Product structure：Silicon monolithic...