4.5~52V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller


Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 52 Vout (Min) (V) 7 Vout (Max) (V) 9 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 35 Switching frequency (Max) (kHz) 1000 Iq (Typ) (mA) 0.53 Features Enable, Frequency Synchronization Duty cycle (Max) (%) 95 TI functional safety category Functional Safety-Capable Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Boost controllers (external switch)

Package | Pins | Size

HVSSOP (DGQ) 10 9 mm² 3 x 3 VSON (DRC) 10 9 mm² 3.00 x 3.00 open-in-new Find other Boost controllers (external switch)


  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • For boost, flyback, SEPIC, LED drive apps
  • Wide input operating voltage: 4.5 V to 52 V
  • Adjustable oscillator frequency
  • Fixed frequency current mode control
  • Internal slope compensation
  • Integrated low-side driver
  • Programmable closed-loop soft start
  • Overcurrent protection
  • External synchronization capable
  • Reference 700 mV (TPS40210), 260 mV (TPS40211)
  • Low current disable function
  • Create a custom design using the TPS4021x with the WEBENCH Power Designer

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The TPS40210 and TPS40211 are wide-input voltage (4.5 V to 52 V), nonsynchronous boost controllers. They are suitable for topologies which require a grounded source N-channel FET including boost, flyback, SEPIC, and various LED Driver applications. The device features include programmable soft start, overcurrent protection with automatic retry, and programmable oscillator frequency. Current mode control provides improved transient response and simplified loop compensation. The main difference between the two parts is the reference voltage to which the error amplifier regulates the FB pin.

open-in-new Find other Boost controllers (external switch)
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Technical documentation

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Type Title Date
* Data sheet TPS4021x 4.5-V to 52-V Input Current Mode Boost Controller datasheet (Rev. G) Jun. 10, 2020
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) Apr. 07, 2021
Functional safety information TPS4021x-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution May 22, 2020
Technical article How to add overvoltage protection to a synchronous boost controller Sep. 17, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article Power Tips: Solar panel lighting requires a system-level approach Feb. 19, 2015
Application note Practical Feedback Loop Analysis for Current-Mode Boost Converter Mar. 07, 2014
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application note Automated Frequency Response Analyzer Oct. 09, 2013
Application note 2Q 2013 Issue Analog Applications Journal Apr. 16, 2013
Application note Synchronous rectification boosts efficiency by reducing power loss Apr. 16, 2013
Application note USB Charger Based on TPS40210 SEPIC Converter Nov. 18, 2008
Application note New current-mode PWM controllers support boost, flyback, SEPIC and LED-driver Aug. 06, 2008
Application note Q3 2008 Issue Analog Applications Journal Aug. 06, 2008
User guide Using the TPS40210EVM Mar. 14, 2008

Design & development

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

Hardware development

document-generic User guide
The TPS40210EVM evaluation module (EVM) is a fixed frequency (600kHz) non-synchronous boost converter providing fixed 24.0-V output at up to 2A from a 12V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the (...)
  • 12V +10% / -20% input range
  • 24.0V fixed output voltage, adjustable with resistor change (May require compensation adjustment)
  • 2-Adc Steady State Output Current
  • 600kHz switching frequency Single SO-8 switching MOSFET and Rectifier Diode.
  • Double Sided 2 Active Layer PCB with all components on top side (...)

Design tools & simulation

SLUC088B.ZIP (31 KB) - PSpice Model
SLUC101I.ZIP (80 KB) - PSpice Model
SLUM028B.ZIP (9 KB) - TINA-TI Spice Model
SLUM030C.TSC (445 KB) - TINA-TI Reference Design
SLUM492A.TSC (346 KB) - TINA-TI Reference Design
SLUM613.ZIP (28 KB) - TINA-TI Spice Model
SLUM615.TSC (849 KB) - TINA-TI Reference Design
SLUM616.TSC (849 KB) - TINA-TI Reference Design
SLUM712.ZIP (4 KB) - PSpice Model
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 (...)
  • 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
  • (...)

Reference designs

Many TI reference designs include the TPS40210 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
HVSSOP (DGQ) 10 View options
VSON (DRC) 10 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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