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BU90028NUX - Step-down Switching regulators

Download the BU90028NUX datasheet PDF. This datasheet also covers the BU90023NUX variant, as both devices belong to the same step-down switching regulators family and are provided as variant models within a single manufacturer datasheet.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BU90023NUX-ROHM.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BU90028NUX
Manufacturer ROHM
File Size 635.98 KB
Description Step-down Switching regulators
Datasheet download datasheet BU90028NUX Datasheet

General Description

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.

Overview

Datasheet Single-chip Type with Built-in FET Switching Regulator Series Step-down Switching regulators with Built-in Power MOSFET BU9002xNUX Series.

Key Features

  • Fast transient response.
  • Automatic PFM/PWM operation.
  • Forced PWM operation.
  • Internal Soft Start.
  • Under voltage lockout.
  • Over current protection.
  • Thermal shutdown.
  • Lineup.

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