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7.5V to 15V, 4A 1ch Synchronous Buck Converter - BD95841MUV

BD95841MUV is a 1ch synchronous buck converter that can generate output voltage (0.8V to 5.5V) at the input voltage range (7.5V to 15V). Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistors. The IC also incorporates H3Reg™ technology, a Rohm proprietary constant ONTIME control mode which facilitates ultra-high transient response against changes in load without external compensation components. Fixed soft start function, power good function, and short circuit / over voltage protection with timer latch functions are incorporated. The BD95841MUV is designed for power supplies for Digital AV Equipment.
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* 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
BD95841MUV-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
Vin3(Min.)[V] 4.5
Vin3(Max.)[V] 18.0
Vout3(Min.)[V] 0.8
Vout3(Max.)[V] 5.5
Iout3(Max.)[A] 6.0
SW frequency(Max.)[MHz] 0.8
EN Yes
PGOOD Yes
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 100
características:
  • ・Fast Transient Responses due to H3Reg control
    ・Over Current Protection (OCP) – Cycle-by-Cycle
    ・Thermal Shut Down (TSD)
    ・Under-Voltage Lock-Out (UVLO)
    ・Short Circuit Protection (SCP)
    ・Over Voltage Protection (OVP)
    ・Fixed Soft Start (1msec ; typ)
    ・Power Good function
 
 
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Dados técnicos
Reference Circuits and Bomlist

Reference Circuits and Bomlist

Evaluation Board User's Guide

Evaluation Board for ROHM's BD95841MUV Synchronous Buck Converter with Integrated 4A MOSFET

Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

PCB Layout Techniques of Buck Converter

Major problems that arise from in appropriate layout may cause increase in noise superposed by output and switching signal, the deterioration of regulator, and also lack of stability...

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

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.