TPS62090-Q1

ACTIVE

Automotive: 3A, 2.5 to 6V input, up to 97% efficiency, 3x3 QFN, Step-Down Converter

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Iout (Max) (A) 3 Iq (Typ) (uA) 20 Switching frequency (Min) (kHz) 1400 Switching frequency (Max) (kHz) 2800 Features Enable, Light Load Efficiency, Output Discharge, Power Good, Synchronous Rectification, Tracking Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Junction Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • 2.5-V to 6-V Input Voltage Range
  • DCS-Control™
  • 95% Converter Efficiency
  • Power Save Mode
  • 20-µA Operating Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • 2.8-MHz and 1.4-MHz Typical Switching Frequency
  • 0.8-V to VIN Adjustable Output Voltage
  • Output Discharge Function
  • Adjustable Soft Start
  • Hiccup Short-Circuit Protection
  • Output Voltage Tracking
  • Wide Output Capacitance Selection
  • Available in 3 mm × 3 mm 16-pin QFN Package
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Description

The TPS62090Q devices are a family of high-frequency, synchronous, step-down converters optimized for small solution size, high efficiency, and are suitable for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8 MHz to 1.4 MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10 µF up to 150 µF and beyond. Using the DCS-Control™ topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20-µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.

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Technical documentation

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Type Title Date
* Datasheet TPS62090-Q1 3-A High-Efficiency Synchronous Step-Down Converter With DCS-Control™ datasheet (Rev. B) Dec. 29, 2016
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) Aug. 09, 2012
User guide TPS2090EVM-063 Evaluation Module (Rev. A) May 15, 2012
Application note Optimizing the TPS62090 Output Filter May 11, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011

Design & development

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

Design tools & simulation

SIMULATION MODEL Download
SLVM563A.ZIP (24 KB) - PSpice Model
SIMULATION TOOL Download
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 (...)
Features
  • 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
  • (...)
GERBER FILE Download
SLVC780.ZIP (138 KB)

Reference designs

REFERENCE DESIGNS Download
Efficient, low-heat, CISPR 25 class 5-compliant power reference design for infotainment display
PMP22030 — This reference design is focused on the power tree for an automotive infotainment display unit covering various power supply rails including two off-battery converters providing 5.0-V and 3.3-V, and intermediary system rails of 1.8-V and 1.1-V. The test results demonstrate high efficiency, low heat (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Reduction Using Dynamic Switching Reference Design
TIDA-00675 The TIDA-00675 shows the power reduction benefits of dynamically switching a load on/off using a load switch. The design guide shows how frequency of switching, duty cycle, and the use of a discharge resistor can have an impact on power consumption.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RGT) 16 View options

Ordering & quality

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