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2.7-5.5V 3A 1ch Buck converter - BD9139MUV

ROHM’s high efficiency step-down switching regulator BD9139MUV is a power supply designed to produce a low voltage including 0.8 volts from 5/3.3 volts power supply line. 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
pacote
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
RoHS
BD9139MUV-E2 Active VQFN016V3030 3000 3000 Taping sim
 
especificações:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 2.7
Vin1(Max.)[V] 5.5
Vout1(Min.)[V] 0.8
Vout1(Max.)[V] 3.3
Iout1(Max.)[A] 3.0
SW frequency(Max.)[MHz] 1.0
Light Load mode Yes
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
características:
  • ・1ch Switching Regulator
    ・Offers fast transient response with current mode PWM control system.
    ・Offers highly efficiency for all load range with synchronous rectifier (Nch / Nch FET) and SLLM™ (Simple Light Load Mode)
    ・Input voltage range : 2.7V to 5.5V
    ・Output current max. : 3A
    ・1MHz Fixed frequency Operation
    ・Incorporates soft-start function.
    ・Incorporates thermal protection, ULVO and short-current protection circuit with time delay function.
    ・Incorporates shutdown function. Icc=0μA(Typ.)
 
 
Dados técnicos
Reference Circuits and Bomlist

Reference Circuits and Bomlist

Application Note

Capacitor Calculation for Buck converter IC

Application Note

Inductor Calculation for Buck converter IC

Application Note

Resistor Value Table to set Output Voltage of Buck Converter IC

Application Note

Thermal Resistance

Application Note

PCB Layout Techniques of Buck Converter

Application Note

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Application Note

Calculation of Power Loss (Synchronous)

Application Note

Considerations for Power Inductors Used for Buck Converters

Application Note

Snubber Circuit for Buck Converter IC

Application Note

Efficiency of Buck Converter