CAT4237TD-T3 - onsemi

Manufacturer Part Number

CAT4237TD-T3

Manufacturer

onsemi

Introduction

The CAT4237TD-T3 is a high-efficiency DC DC regulator designed by onsemi, specifically for driving LEDs. It offers a boost (step-up) topology that enables it to drive strings of LEDs from a low voltage supply.

Product Features and Performance

High-efficiency step-up converter

Capable of driving LED strings with up to 30V output from a 2.8V to 5.5V input

Internal switch included

Supports analog and PWM dimming for versatile brightness control

Features a high switching frequency of 1MHz to minimize the size of external components

Provides a stable output current of 40mA to ensure consistent illumination

Product Advantages

High efficiency for longer battery life in portable applications

Compact SOT-23-5 package saves board space

Integrated internal switch reduces external component count

Flexible dimming options support user customization

Simple and robust design for reliable operation

Key Technical Parameters

Voltage Supply (Min): 2.8V

Voltage Supply (Max): 5.5V

Voltage Output: 30V

Current Output / Channel: 40mA

Frequency: 1MHz

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Built to onsemi's high-quality standards for reliability and performance

Over-temperature protection enhances safety under abnormal conditions

Compatibility

Suitable for various LED driving applications requiring a boost converter

Compatible with both analog and PWM dimming methods

Application Areas

Primarily used for LED backlighting in portable devices such as smartphones, tablets, and laptops

Product Lifecycle

The CAT4237TD-T3 is marked as Obsolete, indicating that it is nearing the end of its product lifecycle. Customers should seek information on available replacements or upgrades for future designs.

Several Key Reasons to Choose This Product

Optimized for portable LED backlighting applications requiring efficient power use

Minimizes required board space with its small form factor

Offers versatility in dimming options to accommodate different user preferences

Proven reliability and performance from a reputable manufacturer, onsemi

Integrated safety features ensure product longevity and user safety