TPS57112-Q1 is in the process of being discontinued.
Please consider one of these alternatives:
open-in-new Compare products
Drop-in replacement with upgraded functionality to the compared device.
TPS57112C-Q1 ACTIVE Automotive 2.95-V to 6-V, 2-A, 2-MHz synchronous buck converter TPS57112C-Q1 offers improved automotive robustness.
Similar functionality to the compared device.
TPS62812-Q1 ACTIVE Automotive 2.75-V to 6-V, 2-A step-down converter in a 2mm x 3mm wettable-flanks QFN package TPS62812-Q1 offers a better feature set and a smaller QFN solution size.
NEW TPS628502-Q1 ACTIVE 2.7-V to 6-V, 2-A automotive step-down converter in SOT583 package TPS628502-Q1 offers a better feature set and a smaller SOT solution size.

Product details


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  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Two 12-mΩ (Typical) MOSFETs for High Efficiency at 2-A Loads
  • 200-kHz to 2-MHz Switching Frequency
  • 0.8 V ± 1% Voltage Reference Over Temperature (–40°C to +150°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start and Sequencing
  • UV and OV Power-Good Output
  • –40°C to +150°C Operating Junction Temperature Range
  • Thermally Enhanced 3-mm × 3-mm 16-Pin WQFN
  • Pin-Compatible to TPS54418
  • Create a custom design using the TPS57112-Q1 with the WEBENCH® Power Designer
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The TPS57112-Q1 device is a full-featured 6-V, 2-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS57112-Q1 device enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.

The TPS57112-Q1 device provides accurate regulation for a variety of loads with a ±1% voltage reference (Vref) over temperature.

The integrated 12-mΩ MOSFETs and 515-µA typical supply current maximize efficiency. Using the enable pin to enter the shutdown mode reduces supply current to 5.5 µA, typical.

The internal undervoltage lockout setting is 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin controls the output-voltage start-up ramp. An open-drain power-good signal indicates when the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

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Technical documentation

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Type Title Date
* Data sheet TPS57112-Q1 Automotive 2.95-V to 6-V, 2-A, 2-MHz Synchronous Buck Converter datasheet (Rev. D) May 07, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Technical article Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processors May 02, 2017
Application note TPS57112-Q1 High Frequency (2.35 MHz) Operation May 31, 2016
Application note Enable Functionality and Adjusting Under Voltage Lockout for TPS57112-Q1 Device May 05, 2016
Application note Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter Dec. 08, 2015
User guide TPS57112EVM User's Guide Nov. 14, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The TPS57112-Q1 DC/DC converter is designed to provide up to a 2-A output from an input voltage source of 2.95 V to 6 V. This evaluation module is designed to demonstrate the small printed-circuit-board (PCB) areas that may be achieved when designing with the TPS57112-Q1 regulator. The switching (...)

  • Adjustable output voltage (down to 0.8V)
  • Adjustable slow start time
  • Adjustable undervoltage lockout
  • 2 MHz switching frequency (adjustable down to 200 kHz)
  • Optimized for fast load transient response

Design tools & simulation

SLVM818A.ZIP (62 KB) - PSpice Model
SLVMAF2.ZIP (11 KB) - IBIS Model
SLVMC58A.ZIP (91 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

17W System-Level Power Reference Design for Automotive Infotainment Processor Power
TIDA-00746 — TIDA-00746 is a 17W system-optimized SMPS design for automotive infotainment processor power. The design has been tested for and passed CISPR25 Class 5 conducted EMI  limits.  All buck converters used in this design is switching above AM band (>1.85MHz).

The design is divided into four major blocks:
  1. (...)
document-generic Schematic
Cascade imaging radar capture reference design using Jacinto™ ADAS processor
TIDEP-01017 The cascade development kit has two main use cases:
  1. To use the MMWCAS-DSP-EVM as a capture card to fully evaluate the AWR2243 four-chip cascade performance by using the mmWave studio tool, please read the TIDEP-01012 design guide.
  2. To use the MMWCAS-DSP-EVM to develop radar real time SW application (...)
document-generic Schematic
I/O supply 3.3V@1.3A out of 5V to Drive uProcessors Reference Design
PMP10123 PMP10123 is a synchronous buck converter with 5V input voltage and 3.3V output voltage. The design is optimized for low EMI and smallest size.
document-generic Schematic
1.25V@1A Synchronous Step-Down Converter with Integrated MOSFETs Reference Design
PMP10002 This design is a synchronous buck converter for automotive applications. It uses the TPS57112-Q1 to deliver an output voltage of 1.25V@1.0A. The adjustable switching frequency is 2MHz.
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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