FAN5355UC03X - onsemi

Manufacturer Part Number

FAN5355UC03X

Manufacturer

onsemi

Introduction

The FAN5355UC03X is a highly efficient, small footprint, fixed-frequency step-down switch regulator designed for portable applications.

Product Features and Performance

Step-Down (Buck) regulator topology

Programmable output voltage

Single output with synchronous rectification

High switching frequency of 3MHz

Capable of supplying 1A of output current

Wide input voltage range from 2.7V to 5.5V

Adjustable output voltage from 0.75V to 1.54V

Thermal shutdown and over-current protection

Small package size for space-constrained applications

Product Advantages

Efficient power conversion

Optimized for battery-powered devices

Low-profile design fits into tight spaces on PCBs

Fast transient response suitable for high-performance systems

Key Technical Parameters

Input Voltage (Min): 2.7V

Input Voltage (Max): 5.5V

Output Voltage (Min/Fixed): 0.75V

Output Voltage (Max): 1.54V

Output Current: 1A

Switching Frequency: 3MHz

Operating Temperature Range: -40°C to 85°C

Quality and Safety Features

Built-in over-temperature protection

Over-current protection circuitry

Complies with relevant industry standards for safety and reliability

Compatibility

Compatible with a variety of battery chemistries

Suitable for many digital load applications

Designed for surface mount technology (SMT) assembly

Application Areas

Mobile phones and smartphones

Portable media players

Handheld gaming devices

Personal digital assistants (PDAs)

Product Lifecycle

Status: Obsolete

Assessment of replacement or upgrade options recommended

Several Key Reasons to Choose This Product

High power efficiency suitable for extending battery life

Compact design enables integration into space-constrained devices

High frequency allows for smaller external components

Adjustable output compatible with a variety of IC requirements

Robust protection features safeguard against operational anomalies

Established manufacturer with a reputation for reliable products