BD9E302EFJ-E2

General Description 

BD9E302EFJ is a synchronous buck switching regulator 

with built-in power MOSFETs. High efficiency at light load 

with a SLLMTM (Simple Light Load Mode). It is most 

suitable for use in the equipment to reduce the standby 

power is required. It is a current mode control DC/DC 

converter and features high-speed transient response. 

Phase compensation can also be set easily. 

Features

 Synchronous single DC/DC converter 

 SLLMTM control (Simple Light Load Mode) 

 Over current protection 

 Short circuit protection 

 Thermal shutdown protection 

 Under voltage lockout protection 

 Soft start 

 Reduce external diode 

 HTSOP-J8 package 

Applications

 Consumer applications such as home appliance 

 Secondary power supply and Adapter equipment 

 Telecommunication devices 

 Key Specifications 

 Input voltage range: 7.0V to 28V 

 Output voltage range: 1.0V to VIN x 0.7V 

 Output current: 3.0 A (Max) 

 Switching frequency: 550 kHz (Typ) 

 High-Side MOSFET on-resistance: 90 mΩ (Typ) 

 Low-Side MOSFET on-resistance: 70 mΩ (Typ) 

 Shutdown current: 0 μA (Typ)