BD9139MUV-E2

General Description

The  BD9139MUV  is  ROHM’s  high  efficiency

step-down switching regulator designed to produce a

voltage as low as 0.8V from a supply voltage of

5.5V/3.3V. It offers high efficiency by using pulse skip

control technology and synchronous switches, and

provides fast transient response to sudden load

changes by implementing current mode control.

Features

 Fast Transient Response because of Current Mode

PWM Control System.

 High Efficiency for All Load Ranges because of

Synchronous Switches (Nch/Nch FET) and SLLM TM

(Simple Light Load Mode)

 Soft-Start Function

 Thermal Shutdown and UVLO Functions

 Short-Circuit Protection with Time Delay Function

 Shutdown Function

Applications

Power Supply for LSI including DSP, Microcomputer

and ASIC

规格书bd9139muv-e