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TPS55160QPWPTQ1

TITPS55160QPWPTQ1

Texas Instruments
Buck-Boost Switching Regulator IC Positive Adjustable 5.7V 1 Output 1A 20-PowerTSSOP (0.173", 4.40mm Width)
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Overview

The TPS55160QPWPTQ1 is an automotive-qualified, synchronous buck-boost DC-DC converter designed to provide a stable output from a wide input voltage range of 2V to 36V. It features an automatic transition between step-down and step-up modes, making it ideal for maintaining a constant 5V or 12V rail during automotive cranking or start-stop events. The device is functional safety-capable and includes spread spectrum clocking to minimize electromagnetic interference.

Why Choose This Part

This regulator offers high efficiency at light loads through a low-power mode and features a very low shutdown current of 3uA. Its 2MHz switching frequency and integrated spread spectrum simplify EMI filter design and allow for smaller external inductors and capacitors. The dedicated IGN wake-up and power-latch functions provide flexible power-sequencing options for vehicle ignition cycles.

Applications

Automotive Battery-Connected Systems
Provides a regulated output voltage despite wide battery swings during cold-cranking and load-dump scenarios.
Start-Stop Systems
Maintains constant power to critical electronics when the engine restarts and battery voltage temporarily dips.
Industrial Power Supplies
Regulates power from variable DC buses or battery backups in industrial automation environments.
Functional Safety Applications
Utilized in systems requiring safety-related documentation and features like power-good monitoring and overvoltage protection.

Key Specifications

Function Step-Up/Step-Down
Topology Buck-Boost
Output Type Adjustable
Mounting Type Surface Mount
Package / Case 20-PowerTSSOP (0.173", 4.40mm Width)
Current - Output 1A
Number of Outputs 1
Output Configuration Positive
Frequency - Switching 2MHz
Operating Temperature -40degC ~ 125degC (TA)
Synchronous Rectifier Yes
Voltage - Input (Max) 36V
Voltage - Input (Min) 2V
Voltage - Output (Max) 9V
Supplier Device Package 20-HTSSOP
Voltage - Output (Min/Fixed) 5.7V

Getting Started

Designers can evaluate performance using the TPS55160-Q1 evaluation module (TPS55160EVM) to test transient response and thermal performance. Ensure the HTSSOP package's thermal pad is soldered to a large ground plane to manage heat dissipation during 1A continuous load operation. Consult the TI WEBENCH Power Designer for custom schematic generation and component selection based on specific input/output requirements.

TPS55160 Family

Part NumberDifferenceStock
TPS55160QPWPRQ1 RQ1 1,138

Also Consider

TPS55165QPWPRQ1 TITexas Instruments - A similar automotive buck-boost but with a fixed 5V output and 1A current rating for simplified designs.