EmbeddedRelated.com
    Parts   Power Management  DC-DC Converters    LM5175PWPR
LM5175PWPR

TILM5175PWPR

Texas Instruments
A synchronous buck-boost controller option suitable for applications requiring four-switch topologies and robust control features.
NRND8,705 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The LM5175PWPR is a synchronous four-switch buck-boost controller capable of regulating output voltages from 0.8V up to 55V with an input range of 3.5V to 42V. This single-inductor controller utilizes a proprietary switching scheme to maximize efficiency during the transition between buck and boost modes.

Why Choose This Part

The device features integrated 2-A MOSFET gate drivers and a programmable switching frequency, reducing external component count and layout complexity. Its ability to operate in CCM or DCM with pulse skipping allows for optimized efficiency across a wide range of load conditions.

Applications

Industrial PC Power Supplies
Provides stable voltage rails for industrial computers from varying DC input sources such as 12V or 24V batteries.
USB Power Delivery
Ideal for high-power USB-C PD applications that require wide output voltage ranges from a fixed or variable input.
Battery Charging Systems
Utilizes integrated average current limiting to manage constant-current charging for various battery chemistries.
LED Lighting Drivers
Supports high-power LED strings where the input voltage may be higher or lower than the required forward voltage.

Key Specifications

Function Step-Up/Step-Down
Topology Buck-Boost
Clock Sync Yes
Output Type Transistor Driver
Mounting Type Surface Mount
Output Phases 1
Package / Case 28-PowerTSSOP (0.173", 4.40mm Width)
Control Features Enable, Frequency Control, Power Good, Soft Start
Number of Outputs 1
Output Configuration Positive
Frequency - Switching 100kHz ~ 600kHz
Operating Temperature -40degC ~ 125degC (TJ)
Synchronous Rectifier Yes
Supplier Device Package 28-HTSSOP
Voltage - Supply (Vcc/Vdd) 3.5V ~ 42V

Getting Started

Engineers can use TI WEBENCH Power Designer to generate custom schematics and BOMs for specific power requirements. For hardware evaluation, the LM5175EVM high-power buck-boost evaluation module provides a reference layout for high-current applications.

Also Consider

LT8705 Analog Devices - Offers a wider input voltage range up to 80V for more demanding high-voltage industrial systems.

Categories

Power Management > DC-DC Converters