TPS51427RHBR - Texas Instruments

Manufacturer Part Number

TPS51427RHBR

Manufacturer

Texas Instruments

Introduction

The TPS51427RHBR is a specialized power management integrated circuit (PMIC) for notebook power systems, featuring Texas Instruments' D-CAP™ mode for fast transient response.

Product Features and Performance

Dual-channel synchronous step-down controller

Supports D-CAP™ mode for both outputs

DC voltage accuracy: ±1%

180° out-of-phase operation

Selectable switching frequency from 200kHz to 680kHz

Adaptive on-time control architecture

Support for pre-biased startup

Built-in power-good indicator

Product Advantages

Improved system response and fast load-transient performance

Reduction in the number of external components due to D-CAP™ mode operation

High efficiency and low power consumption

Suitable for use in space-constrained applications

Key Technical Parameters

Voltage - Input: 5.5V to 28V

Number of Outputs: 2

Voltage - Output: 3.3V, 5V, Adjustable

Operating Temperature: -40°C to 85°C

Mounting Type: Surface Mount

Package/Case: 32-VFQFN Exposed Pad

Supplier Device Package: 32-VQFN (5x5)

Quality and Safety Features

Built-in overvoltage protection

Overcurrent and thermal protection features

Under-voltage lockout (UVLO)

Compatibility

Compatible with multiple notebook power system designs

Can be used with a variety of external components to adjust output voltage and current parameters

Application Areas

Notebook computers

Power supply units

Portable electronics with emphasis on energy efficiency

Product Lifecycle

Status: Active

Not currently listed as nearing discontinuation

Information about replacements or upgrades should be sought directly from Texas Instruments’ updates

Several Key Reasons to Choose This Product

Highly integrated solution reduces complexity and can save PCB space

Energy-efficient design contributes to longer battery life in portable applications

Versatile input voltage range supports a broad array of power sources

Texas Instruments' reliability and support for power management solutions

Adaptive on-time control enables excellent transient response with minimal external components