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.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BD9139MUV-E2ActiveVQFN016V303030003000TapingYes

BD9139MUV Data Sheet

Specifications
GradeStandard
ch1
Integrated FET / ControllerIntegrated FET
Buck / Boost / Buck-Boost / InvertingBuck
Synchronous / NonsynchronousSynchronous
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 modeYes
ENYes
PGOODNo
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]105
Applications
  • Coin Processing Machines
  • Car Audio
  • Digital Multimeter: Handy Type
  • Barcode Scanner
  • Motor Control: Brushless DC
  • Single Board Computer
  • AC Servo
  • Network Attached Storage
  • DVR/DVS
  • Home Theater System
  • Motor Control: Stepper Motor
  • Motor Control: Brushed DC
  • PPC (Plain Paper Copier)
  • MFP(Multi Function Printer)
  • Car Navigation
  • CT Scanner
  • ECG(EKG)
  • Ultrasound System for Portable
  • Surveillance Camera for Network
  • Machine Vision Camera for Industrial
  • Digital Multimeter: Bench Type
  • Display for EMS
  • Ultrasound System
  • Solar Power Inverters
  • Digital Video Camera
  • Portable Data Terminal
  • Meter for Medical Treatments Portable
  • PLC (Programmable Logic Controller)
  • Digital Stethoscope
  • STB (Set Top Box)
  • Notebook PC
  • Mobile Phone
  • POS (Point Of Sales System)
  • Data Management Apparatus for Remote Healthcare
  • X-ray Inspection Machine for Security
  • Surveillance Camera
  • PND (Portable Navigation Device)
  • Monitor for Medical
  • Digital Still Camera
  • Intercom / Baby Monitor
  • Fingerprint Authentication Device
  • Pulse Oximeter
  • CPAP
  • TV
Technical Documents
Pin Configuration
Related Product
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BD37201NUXSingle-Output LDO RegulatorsDatasheet
BD9139MUV BD9139MUV
BD9528AMUV BD9528AMUV
BD4271HFP-C BD4271HFP-C
BD42530FP2-C BD42530FP2-C
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Reference Circuits and Bomlist BD9139MUV
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BA12004BF
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Reliability Information BD9139MUV
Package Information BD4157MUV
Part Explanation BA12004BF