深圳市中立信电子科技有限公司

BD9D320EFJ-E2

4.5V to 18V Input, 3.0A Integrated MOSFET  1ch Synchronous Buck DC/DC Converter

开关稳压器 IC Pwr Swtch Reg Integrated FET

General Description

BD9D320EFJ is a synchronous buck switching regulator

with built-in low on-resistance power MOSFETs. It is

capable of providing current of up to 3 A. External phase

compensation circuit is not necessary for it is a constant

on-time control DC/DC converter with high speed

response.

Features BD9D320EFJ

 Synchronous Single DC/DC Converter

 Constant On-time Control

 Over Current Protection

 Short Circuit Protection

 Thermal Shutdown Protection

 Under Voltage Lockout Protection

 Adjustable Soft Start

 HTSOP-J8 Package (Backside Heat Dissipation)

Applications BD9D320EFJ

 Step-down Power Supply for DSPs, FPGAs, Microprocessors, etc.

 Set-top Box

 LCD TVs

 DVD / Blu-ray Player / Recorder

 Entertainment Devices

Key Specifications

 Input Voltage Range: 4.5V to 18.0 V

 Output Voltage Setting Range: 0.765V to 7V (VIN×0.07)V to (VIN×0.65)V

 Reference Voltage: 0.765V ± 1.5%

 Output Current: 3 A (Max)

 Switching Frequency: 700 kHz (Typ)

 High Side MOSFET On-Resistance:100 m Ω (Typ)

 Low Side MOSFET On-Resistance: 70 m Ω (Typ)

 Standby Current: 2 μA (Typ)