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TPS57112C-Q1

ACTIVE

Automotive 2.95-V to 6-V, 2-A, 2-MHz synchronous buck converter

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TPS62812-Q1 ACTIVE Automotive 2.75-V to 6-V, 2-A step-down converter in a 2mm x 3mm wettable-flanks QFN package Improved performance: Fixed-frequency, spread-spectrum in smaller 2-mm x 3-mm QFN with wettable flanks.
TPS628502-Q1 ACTIVE 2.7-V to 6-V, 2-A automotive step-down converter in SOT583 package The TPS628502-Q1 offers a better feature set and a smaller SOT solution size.

TPS57112C-Q1

ACTIVE

Product details

Vin (min) (V) 2.95 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iout (max) (A) 2 Iq (typ) (mA) 0.515 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2000 Features Enable, Forced PWM, Frequency synchronization, Power good Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.95 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iout (max) (A) 2 Iq (typ) (mA) 0.515 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2000 Features Enable, Forced PWM, Frequency synchronization, Power good Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
WQFN (RTE) 16 9 mm² 3 x 3
  • 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
  • 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

The TPS57112C-Q1 device is a full-featured 6-V, 2-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS57112C-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 TPS57112C-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.

The TPS57112C-Q1 device is a full-featured 6-V, 2-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS57112C-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 TPS57112C-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 TPS57112C-Q1 Automotive 2.95-V to 6-V, 2-A, 2-MHz Synchronous Buck Converter datasheet (Rev. A) PDF | HTML 14 Jan 2019
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Functional safety information TPS57112C-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 30 Nov 2020
Technical article Minimize the impact of the MLCC shortage on your power application PDF | HTML 29 Mar 2019
Technical article How to power next-generation ADAS camera modules PDF | HTML 11 Sep 2018
Technical article Use a low-quiescent-current switcher for high-voltage conversion PDF | HTML 28 Aug 2018
Technical article Let’s break it down: how buck converters make your power supply more flexible PDF | HTML 13 Dec 2017
Application note TPS57112-Q1 High Frequency (2.35 MHz) Operation 31 May 2016
Application note Enable Functionality and Adjusting Under Voltage Lockout for TPS57112-Q1 Device 05 May 2016
Application note Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 08 Dec 2015
EVM User's guide TPS57112EVM User's Guide 14 Nov 2013

Design & development

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

Evaluation board

TPS57112EVM — TPS57112EVM: 2.95V-6V Input, 2A, 2MHz Synchronous Step Down SWIFT DCDC Converter Evaluation Module

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 (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS57112-Q1 Unencrypted PSpice Average Model Package (Rev. A)

SLVMC58A.ZIP (91 KB) - PSpice Model
Simulation model

TPS57112-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM818A.ZIP (62 KB) - PSpice Model
Simulation model

TPS5711x IBIS Model

SLVMAF2.ZIP (11 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins Download
WQFN (RTE) 16 View options

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