TPS40091PWR - Texas Instruments

Manufacturer Part Number

TPS40091PWR

Manufacturer

Texas Instruments

Introduction

The TPS40091PWR is a versatile, high-performance step-down (buck) PWM controller designed for power management applications.

Product Features and Performance

Provides PWM signal for efficient step-down voltage regulation

Supports up to 4 outputs and 4 phases for balanced power delivery

Operates over a wide supply voltage range of 4.5V to 15V

Adjustable switching frequency from 100kHz to 1.2MHz

Maximum duty cycle of 87.5% for wide range output voltage control

Features clock synchronization for noise sensitive applications

Control features include current limit, enable, frequency control, power good signal, and soft-start for reliable operation

Operating temperature range of -40°C to 85°C ensures performance in harsh environments

Product Advantages

Flexible voltage supply range suitable for various applications

High efficiency and precision in power conversion

Clock synchronization reduces system noise

Comprehensive control features enhance safety and reliability

Soft-start minimizes inrush current at startup

Key Technical Parameters

Output Type: PWM Signal

Number of Outputs: 4

Output Phases: 4

Voltage Supply (Vcc/Vdd): 4.5V ~ 15V

Frequency Switching: 100kHz ~ 1.2MHz

Duty Cycle (Max): 87.5%

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Integrated current limit for overcurrent protection

Soft start to reduce inrush current impact

Power good signal for system stability monitoring

Compatibility

Surface Mount package (24-TSSOP) allows for compact PCB design

No synchronous rectifier requirement broadens application scope

Clock synchronization compatibility for noise-sensitive applications

Application Areas

Power supplies for consumer electronics, networking equipment, and computing devices

Voltage regulation modules in various electronics

Industrial control systems

Product Lifecycle

Currently active product status

Not nearing discontinuation, ensuring long-term availability

Upgrades or replacements are available within Texas Instruments' broad product range

Several Key Reasons to Choose This Product

High-performance and versatile step-down voltage regulation

Supports complex power management requirements with up to 4 outputs

Flexible operating conditions suitable for a wide range of applications

Comprehensive safety and control features ensure reliable performance

Backed by Texas Instruments' reputation for quality and support