Step-down Switching regulators with Built-in Power MOSFET - BU90028NUX

The BU9002xNUX are a high efficiency 1MHz synchronous step-down switching regulator with low current PFM mode.It provides up to 1.5A load current and an input voltage range from 4.5V to 5.5V, optimized for various applications with input voltage range up to 5V.BU9002xNUX has a mode control pin that allows the user to select Forced PWM (Pulse Width Modulation) mode or PFM (Pulse Frequency Modulation) and PWM auto change mode utilized power save operation at light load current.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU90028NUX-TRActiveVSON008X203040004000TapingYes

BU90028NUX Data Sheet

Specifications
GradeStandard
ch1
Integrated FET / ControllerIntegrated FET
Buck / Boost / Buck-Boost / InvertingBuck
Synchronous / NonsynchronousSynchronous
Vin1(Min.)[V]2.3
Vin1(Max.)[V]5.5
Vout1(Min.)[V]1.175
Vout1(Max.)[V]1.175
Iout1(Max.)[A]1.5
SW frequency(Max.)[MHz]1.0
Light Load modeNo
ENYes
PGOODNo
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]85
Applications
  • Coin Processing Machines
  • Portable Data Terminal
  • Meter for Medical Treatments Portable
  • Barcode Scanner
  • Digital Multimeter: Handy Type
  • Digital Stethoscope
  • Single Board Computer
  • Network Attached Storage
  • X-ray Inspection Machine for Security
  • Monitor for Medical
  • CT Scanner
  • ECG(EKG)
  • Intercom / Baby Monitor
  • Fingerprint Authentication Device
  • Machine Vision Camera for Industrial
  • Pulse Oximeter
  • Display for EMS
  • Digital Multimeter: Bench Type
Technical Documents
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BU90028NUX BU90028NUX
BD9528AMUV BD9528AMUV
BD4271HFP-C BD4271HFP-C
BD42530FP2-C BD42530FP2-C
BD37201NUX BD37201NUX
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 BU90028NUX
Part Explanation BA12004BF