UC3573DTR - Unitrode

Manufacturer Part Number

UC3573DTR

Manufacturer

Texas Instruments

Introduction

The UC3573DTR is a step-down DC-DC switching controller from Texas Instruments, designed for power management applications. It is packaged in Tape & Reel format for efficient assembly in high-volume production.

Product Features and Performance

Step-down (Buck) topology

Single output transistor driver configuration

Maximum duty cycle of 92%

Voltage supply range from 4.75V to 30V

Switching frequency at 100kHz

Features current limit and ramp control for efficient power management

Product Advantages

High efficiency with 92% maximum duty cycle

Broad input voltage range suitable for various applications

Compact 8-SOIC package for space-sensitive applications

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Number of Outputs: 1

Voltage Supply (Vcc/Vdd): 4.75V ~ 30V

Frequency Switching: 100kHz

Duty Cycle (Max): 92%

Quality and Safety Features

Built-in current limit feature to prevent over-current conditions

Operating temperature range from 0°C to 70°C ensures stability across various environmental conditions

Compatibility

Surface mountable 8-SOIC package compatible with standard mounting techniques

Application Areas

Suitable for various power management applications in consumer electronics, telecommunications, and industrial equipment

Product Lifecycle

Status: Active

No indication of discontinuation, ensuring long-term availability and support

Several Key Reasons to Choose This Product

High efficiency and precision due to advanced control features like current limit and ramp

Versatility in applications due to wide input voltage range and compact packaging

Reliable performance validated by Texas Instruments’ rigorous quality standards

Ongoing product support and availability as indicated by its active status