TPS62097-Q1

ACTIVE

2A Automotive Step-Down Converter in 3x3 QFN With Wettable Flanks

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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) 2 Iq (Typ) (mA) 0.04 Iq (Typ) (uA) 40 Switching frequency (Min) (kHz) 1500 Switching frequency (Max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Output Discharge, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, Wettable Flanks Package 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

  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Operating Junction Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • iDCS-Control Topology with Selectable Switching Frequency
  • Forced PWM or Power Save Mode
  • Up to 97% Efficiency
  • 2.5-V to 6.0-V Input Voltage
  • 0.8-V to VIN Adjustable Output Voltage
  • 3.3-V Fixed Output Voltage, TPS6209733-Q1
  • ±1% Output Voltage Accuracy
  • Hiccup Short Circuit Protection
  • Programmable Soft Startup
  • Output Voltage Tracking
  • 100% Duty Cycle for Lowest Dropout
  • Output Discharge
  • Power Good Output
  • Thermal Shutdown Protection
  • Available in 3-mm x 3-mm QFN Package with Wettable Flanks

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Description

The TPS62097-Q1 device is a synchronous step-down converter optimized for high efficiency and noise critical applications. The devices focus on high efficiency conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load. The switching frequency is selectable in the range of 1.5 MHz to 2.5 MHz by an external resistor. iDCS-Control is able to be operated in a forced PWM mode for low noise operation with a constant switching frequency.

To address the requirements of system power rails, the internal compensation circuit allows a large selection of external output capacitor values in excess of 150 µF. To control the inrush current during the startup, the device provides a programmable soft startup by an external capacitor connected to the SS/TR pin. The SS/TR pin is also used in voltage tracking configurations. The device integrates short circuit protection, power good and thermal shutdown features.

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Technical documentation

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Type Title Date
* Datasheet TPS62097-Q1 2-A High Efficiency Step-Down Converter in Wettable Flanks QFN Package datasheet (Rev. A) Dec. 01, 2017
Application notes Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Technical articles Make automatic optical inspection easy thanks to packages with wettable flanks Jan. 23, 2018
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
User guides TPS62097QEVM-891 User's Guide Jul. 07, 2017
Application notes Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A) Jun. 28, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Optimizing the TPS62097 Output Filter Dec. 17, 2015
Application notes Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application notes Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application notes High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013
Application notes How to Measure the Control Loop of DCS-Control Devices (Rev. A) Aug. 09, 2012
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS62097QEVM-891 facilitates the evaluation of the TPS62097-Q1 2-A, automotive buck converter with iDCS-Control, forced PWM mode, and selectable switching frequency. The EVM outputs a 1.8V output voltage from input voltages between 2.5V and 6V. The TPS62097-Q1 features the excellent transient (...)
Features
  • Automotive qualified IC with wettable flanks
  • 2.5V to 6V Input Voltage Range
  • 1.8V Output Voltage
  • 2A of Output Current
  • Forced PWM Mode with Above AM Band Switching Frequency

Design tools & simulation

SIMULATION TOOLS 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 FILES Download
SLVC780.ZIP (138 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RGT) 16 View options

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