TPS63020-Q1

ACTIVE

High Efficiency Automotive Single Inductor Buck-Boost Converter with 4A Switch

Product details

Topology Buck-Boost Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Max) (V) 5.5 Vout (Min) (V) 1.2 Duty cycle (Max) (%) 100 Features Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 4 Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2600 Iq (Typ) (mA) 0.025 Iout (Max) (A) 2 Rating Automotive Operating temperature range (C) -40 to 125
Topology Buck-Boost Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Max) (V) 5.5 Vout (Min) (V) 1.2 Duty cycle (Max) (%) 100 Features Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 4 Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2600 Iq (Typ) (mA) 0.025 Iout (Max) (A) 2 Rating Automotive Operating temperature range (C) -40 to 125
VSON (DSJ) 14 12 mm² 3 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade: –40°C to 125°C
      Operating Junction Temperature Range
    • Device HBM ESD Classification Level H1B
    • Device CDM ESD Classification Level C4A
  • Input Voltage Range: 1.8 V to 5.5 V
  • Up to 96% Efficiency
  • 3 A Output Current at 3.3 V in Step Down Mode
    (VIN > 3.6 V)
  • More than 2 A Output Current at 3.3 V in Boost
    Mode (VIN > 2.5 V)
  • Automatic Transition Between Step Down and
    Boost Mode
  • Dynamic Input Current Limit
  • Device Quiescent Current less than 50 µA
  • Adjustable Output Voltage Range from 1.2 V to
    5.5 V
  • Power Save Mode for Improved Efficiency at
    Low Output Power
  • Forced Fixed Frequency Operation at 2.4 MHz
    and Synchronization Possible
  • Smart Power Good Output
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Overvoltage Protection
  • Available in a 3-mm × 4-mm, VSON-14 Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade: –40°C to 125°C
      Operating Junction Temperature Range
    • Device HBM ESD Classification Level H1B
    • Device CDM ESD Classification Level C4A
  • Input Voltage Range: 1.8 V to 5.5 V
  • Up to 96% Efficiency
  • 3 A Output Current at 3.3 V in Step Down Mode
    (VIN > 3.6 V)
  • More than 2 A Output Current at 3.3 V in Boost
    Mode (VIN > 2.5 V)
  • Automatic Transition Between Step Down and
    Boost Mode
  • Dynamic Input Current Limit
  • Device Quiescent Current less than 50 µA
  • Adjustable Output Voltage Range from 1.2 V to
    5.5 V
  • Power Save Mode for Improved Efficiency at
    Low Output Power
  • Forced Fixed Frequency Operation at 2.4 MHz
    and Synchronization Possible
  • Smart Power Good Output
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Overvoltage Protection
  • Available in a 3-mm × 4-mm, VSON-14 Package

The TPS63020-Q1 device provides a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-Polymer battery. Output currents can go as high as 3 A while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency over a wide load current range. The power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 4 A. The output voltage is programmable using an external resistor divider. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 3 mm × 4 mm 14-pin VSON PowerPAD™ package (DSJ).

The TPS63020-Q1 device provides a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-Polymer battery. Output currents can go as high as 3 A while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency over a wide load current range. The power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 4 A. The output voltage is programmable using an external resistor divider. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 3 mm × 4 mm 14-pin VSON PowerPAD™ package (DSJ).

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Technical documentation

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Type Title Date
* Data sheet TPS63020-Q1 High Efficiency Single Inductor Buck-Boost Converter With 4-A Switches datasheet (Rev. A) 28 Dec 2015
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) 04 Aug 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) 09 Jun 2021
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Technical article Is a LiFePO4 or Lithium-ion battery better for eCall systems? 25 Oct 2016
Technical article A complete low-voltage backup battery solution for eCall systems 05 Mar 2016
Technical article Why do you need a 5.5Vin buck-boost in a car? 21 Jan 2016
Application note TPS63020Q Pin FMEA 07 Oct 2015
User guide TPS63020EVM-487 User's Guide 19 Apr 2010

Design & development

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

Evaluation board

TPS63020EVM-487 — Evaluation Module Board for TPS63020 Buck-Boost Converter with 4A Switch

Buck-Boost Converter with 4A Switch Evaluation Module Board

The TPS63020EVM-487 evaluation module is a fully assembled and tested circuit for evaluating the TPS63020 Buck-Boost Converter with 4A Switch. The TPS63020EVM-487 operates from a 1.8V to 5.5V supply and provides a 3.3V output.
Not available on TI.com
Simulation model

TPS63020 TINA-TI Transient Reference Design

SLIM154.TSC (1688 KB) - TINA-TI Reference Design
Simulation model

TPS63020 TINA-TI Transient Spice Model

SLIM155.ZIP (49 KB) - TINA-TI Spice 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 (...)
Calculation tool

Battery Lifetime Estimator (Rev. A)

SLVC808A.ZIP (1889 KB)
Reference designs

PMP9769 — Automotive eCall Power Supply Reference Design with Low Intermediate Voltage

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
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VSON (DSJ) 14 View options

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