OM71231 and OM71231F is a synchronous buck converter with a pseudo-fixed switching frequency that supports input voltages from 4.5V to 18V and can provide a maximum continuous current of 3A. High-efficiency operation is achieved by internally integrating low RDS(ON) MOS. OM71231 uses Power Save Mode to maximize the efficiency at light load.
The devices adopt ACOT control mode to achieve fast transient response and adapt to the use of low ESR output capacitors.
The devices feature comprehensive protection features such as overcurrent limiting, input undervoltage lockout, and overtemperature shutdown.
OM71231 and OM71231F are packaged in TSOT-23-6 and have a rated junction temperature range of -40℃ to 125℃.
• Wide 4.5V to 18V Operating Input Range
• 3A Continuous Output Current
• 590kHz Switching Frequency
• Low 1μA Shutdown Current
• Integrated 69mΩ/53mΩ Power MOSFETs
• Internal Soft-Start
• Power Save Mode and PWM Mode (OM71231)
• FPWM Mode (OM71231F)
• Input Under-Voltage Lockout
• Thermal Shutdown
• TSOT-23-6 package
• Set Top Box
• Tablet Personal Computer
• Networking Home Terminal
• Surveillance
- FUNCTION4.5V to 18V Input, 3A Output, Synchronous Step-Down Converter
- PACKAGETSOT23-6, 3×3
