TPS57114QRTERQ1 Texas Instruments MCU

TPS57114QRTERQ1 Overview

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Description

The TPS57114-Q1 device is a full-featured 6-V, 4-A, synchronous step-downcurrent-mode converter with two integrated MOSFETs.

The TPS57114-Q1 device enables small designs by integrating the MOSFETs,implementing current-mode control to reduce external component count, reducing inductor size byenabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mmthermally enhanced QFN package.

The TPS57114-Q1 device provides accurate regulation for a variety of loadswith an accurate ±1% voltage reference (Vref) over temperature.

Efficiency is maximized through the integrated 12-m? MOSFETs and 515-μA typical supplycurrent. Using the enable pin, shutdown supply current is reduced to 5.5 μA by entering a shutdownmode.

The internal undervoltage lockout setting is 2.45 V, but programming the threshold with aresistor network on the enable pin can increase the setting. The slow-start pin controls theoutput-voltage start-up ramp. An open-drain power-good signal indicates the output is within 93% to107% of the nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrentcondition.

Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureRange
- Device HBM ESD Classification Level 2
- Device CDM ESDClassification Level C4B
Two 12-m? (typical) MOSFETs for HighEfficiency at 4-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 customdesign using the TPS57114-Q1 with theWEBENCH? Power Designer