TPS40057PWPRG4 - Texas Instruments

Manufacturer Part Number

TPS40057PWPRG4

Manufacturer

Texas Instruments

Introduction

The TPS40057PWPRG4 is a step-down (buck) DC-DC switching controller designed for power management applications, enabling efficient voltage conversion.

Product Features and Performance

Supports step-down (buck) conversion

Positive output configuration

Capable of driving a transistor for output

Utilizes synchronous rectification for efficiency

Clock synchronization feature available

Integrated features: Current Limit, Enable, Frequency Control, Soft Start

Operates at a switching frequency of up to 1MHz

Maximum duty cycle of 94%

Supports a supply voltage range from 8V to 40V

Designed for surface mount technology

Product Advantages

High-efficiency conversion reduces power loss

Synchronous rectifier improves efficiency especially at higher load currents

Flexibility in frequency synchronization can help manage and reduce electromagnetic interference (EMI)

Soft start feature limits inrush current at startup

Broad range of supply voltage accommodates various input sources

High frequency operation allows for smaller external components, saving PCB space

Key Technical Parameters

Supply Voltage (Vcc/Vdd): 8V ~ 40V

Switching Frequency: Up to 1MHz

Maximum Duty Cycle: 94%

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package: 16-PowerTSSOP

Quality and Safety Features

Built-in current limit feature prevents overload and short-circuit damage

Temperature range ensures reliable operation under various environmental conditions

Compatibility

Suitable for driving N-channel MOSFETs in synchronous buck converter configurations

Application Areas

Telecommunication equipment

Computing systems

Industrial power systems

Automotive electronics

General purpose power regulation

Product Lifecycle

Discontinued at Digi-Key, indicating it might be nearing the end of its production life cycle. Customers should verify availability for future projects and consider possible replacements or upgrades.

Several Key Reasons to Choose This Product

High-efficiency step-down voltage conversion reduces overall system power loss

Synchronous rectification for improved performance at high load currents

Frequency synchronization capability helps in managing EMI

Broad input voltage range provides flexibility for various applications

Compact size and surface mount package facilitate integration into a wide range of products

Built-in safety features protect against overcurrent and thermal overload conditions