Vishay Siliconix SiC448 microBUCK Datasheet

This datasheet details the Vishay Siliconix SiC448, a high-efficiency, low-noise DC-DC converter featuring a wide input voltage range and multiple operating…

Vishay Siliconix SiC448 microBUCK Datasheet - cover page
Brand
Vishay Siliconix
Category
DC/DC Converter
Document type
Datasheet
Language
English
Pages
6
File format
PDF
File size
3 MB
Published
17 October, 2026
Updated
17 October, 2026
MD5 checksum
BBE9338A2A85C46F534597FB0F3A4D6C
PDF
Vishay Siliconix SiC448 microBUCK Datasheet PDF

About this manual

The SiC448 is a microBUCK switching regulator designed for high efficiency and low noise applications. It supports an input voltage range from 4.5 V to 45 V and can deliver output currents up to 12 A depending on the configuration. The device integrates features such as power save modes, programmable switching frequencies between 100 kHz and 2 MHz, and various protection mechanisms.

What's inside

  • Features
  • Ordering Information
  • Typical Pre-defined Operating Configurations
  • Operation Modes
  • Output Voltage Setting
  • Switching Frequency Setting
  • PCB Layout Guidelines
  • Bill of Materials

Specifications

Input Voltage Range4.5 V to 45 V
Switching Frequency Range100 kHz to 2 MHz

Frequently asked questions

What is the input voltage range for the SiC448?

The device supports an input voltage range from 4.5 V to 45 V.

What are the available operation modes for the SiC448?

The device offers Power Save Mode, Ultra Sonic Enable, and various PWM force modes using internal or external supplies.

How is the switching frequency configured on the evaluation board?

The switching frequency is set using a jumper (J3) and an external resistor connected to the FSW pin.

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