BD9120HFN

Datasheet Synchronous Buck Converter with Integrated FET BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN General Description The BD9106FVM, BD9107FVM, BD9109FVM, BD9110NV, and BD9120HFN are ROHM’s high efficiency step-down switching regulators designed to produce a voltage as low as 1V from a supply voltage of 3.3V or 5.0V. It offers high efficiency by using synchronous switches and provides fast transient response to sudden load changes by implementing current mode control. Features  Fast Transient Response because of Current Mode Control System  High Efficiency for All Load Ranges because of Synchronous Switches (Nch and Pch FET) and SLLMTM (Simple Light Load Mode)  Soft-Start Function  Thermal Shutdown and ULVO Functions  Short-Circuit Protection with Time Delay Function  Shutdown Function Application Power Supply for LSI including DSP, Microcomputer and ASIC Typical Application Circuit Key Specifications  Input Voltage Range BD9120HFN: BD9106FVM, BD9107FVM: BD9109FVM, BD9110NV:  Output Voltage Range BD9109FVM: BD9120HFN: BD9107FVM: BD9106FVM, BD9110NV:  Output Current BD9106FVM, BD9109FVM, BD9120HFN: BD9107FVM: BD9110NV:  Switching Frequency:  FET ON-Resistance BD9110NV: BD9106FVM, BD9107FVM: BD9120HFN, BD9109FVM:  Standby Current:  Operating Temperature Range BD9110NV: BD9120HFN, BD9106FVM: BD9107FVM, BD9109FVM: 2.7V to 4.5V 4.0V to 5.5V 4.5V to 5.5V 3.30V ± 2% 1.0V to 1.5V 1.0V to 1.8V 1.0V to 2.5V 0.8A(Max) 1.2A(Max) 2.0A(Max) 1MHz(Typ) Pch(Typ)/Nch(T...