2.5-5.5V 0.5A 1ch Buck converter - BD9122GUL

ROHM's high efficiency step-down switching regulator (BD91??) is a power supply designed to produce a low voltage including 1 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
BD9122GUL-E2ActiveVCSP50L230003000TapingYes

BD9122GUL Data Sheet

Specifications
GradeStandard
ch1
Integrated FET / ControllerIntegrated FET
Buck / Boost / Buck-Boost / InvertingBuck
Synchronous / NonsynchronousSynchronous
Vin1(Min.)[V]2.5
Vin1(Max.)[V]5.5
Vout1(Min.)[V]1.0
Vout1(Max.)[V]2.0
Iout1(Max.)[A]0.5
SW frequency(Max.)[MHz]1.0
Light Load modeYes
ENYes
PGOODNo
Operating Temperature (Min.)[°C]-30
Operating Temperature (Max.)[°C]85
Applications
  • Coin Processing Machines
  • Car Audio
  • Barcode Scanner
  • Digital Multimeter: Handy Type
  • Single Board Computer
  • Network Attached Storage
  • Home Theater System
  • PPC (Plain Paper Copier)
  • MFP(Multi Function Printer)
  • Car Navigation
  • CT Scanner
  • ECG(EKG)
  • Machine Vision Camera for Industrial
  • Display for EMS
  • Digital Multimeter: Bench Type
  • Digital Video Camera
  • Portable Data Terminal
  • Meter for Medical Treatments Portable
  • Digital Stethoscope
  • STB (Set Top Box)
  • Notebook PC
  • Mobile Phone
  • POS (Point Of Sales System)
  • X-ray Inspection Machine for Security
  • PND (Portable Navigation Device)
  • Monitor for Medical
  • Digital Still Camera
  • Intercom / Baby Monitor
  • Fingerprint Authentication Device
  • Pulse Oximeter
  • TV
Technical Documents
Pin Configuration
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BD9122GUL BD9122GUL
BD9528AMUV BD9528AMUV
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BD42530FP2-C BD42530FP2-C
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Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BA12004BF
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Application Note BU9006GUZ
Package Information BD9122GUL
Reliability Information BD9122GUL
Part Explanation BA12004BF
Application Note BD9122GUL