2.7-5.5V 1.2A 1ch Buck converter - BD9123MUV
ROHM's high efficiency step-down switching regulator BD9123MUV is a power supply designed to produce a low voltage including 0.85 to 1.2 volts from 5 / 3.3 volts power supply line. The output voltage can be set with the built-in selector. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load.
Integrated FET / Controller
Synchronous / Nonsynchronous
Light Load mode
Operating Temperature (Min.)[°C]
Operating Temperature (Max.)[°C]
Features:・Offers fast transient response with current mode PWM control system.
・Offers highly efficiency for all load range with synchronous rectifier (Pch / Nch FET) and SLLM™ (Simple Light Load Mode)
・Incorporates setup function of the output voltage (3bits)
・Incorporates PGOOD function.
・Incorporates soft-start function.
・Incorporates thermal protection ,ULVO function.
・Incorporates short-current protection circuit with time delay function.
・Incorporates shutdown function. Icc=0μA(Typ.)・High heat radiation small surface mount package : VQFN020V4040