
ROHM Semiconductor
General Description
The BD9053xEFJ-C series is a synchronous rectification type step-down DC/DC converter with a 2.25MHz fixed frequency that operates in with an input voltage range of 2.69V-5.5V. It has an integrated feedback resistor that supplies a fixed output voltage of 1.2V/1.5V/1.8V and a phase compensation constant. Applications can be created with a minimum of three external components. Moreover, the integrated Pch and Nch output MOSFET can supply a maximum output current of 3A.
FEATUREs
■ Integrated output feedback resistors and phase
compensation network, contributes to minimize
external components for the applications.
■ Excellent load response through current mode
control
■ Integrated Pch and Nch output MOSFET
■ Integrated overcurrent protection with auto-reset
■ Integrated output overvoltage detection/
short-circuit detection
■ Integrated TSD and UVLO
■ Light load mode/PWM fixation operation selection
pin
APPLICATIONs
■ Automotive equipment
■ Car audio and navigation
■ TV
■ Other electronic equipment