Automotive 1.5V to 60V Wide Input Range, 3A Boost Converter with Voltage Supervisor


Product details


Vin (Min) (V) 1.5 Vin (Max) (V) 60 Vout (Min) (V) 2.5 Vout (Max) (V) 50 Switch current limit (Typ) (A) 5.7 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 80 Switching frequency (Max) (kHz) 2200 Iq (Typ) (mA) 4.2 Features Enable, Frequency Synchronization, Power Good, UVLO Adjustable Duty cycle (Max) (%) 70 Operating temperature range (C) -40 to 125 Rating Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 open-in-new Find other Boost converters (integrated switch)


  • Withstands Transients up to 60 V, Boost Input
    Operating Range of 1.5 V to 40 V (VIN)
  • Peak Internal Switch Current: 5.7 A (typ)
  • 2.5 V ± 1.5% Feedback Voltage Reference
  • 80 kHz to 2.2 MHz Switching Frequency
  • High Voltage Tolerant Enable Input for On/Off State
  • Soft Start on Enable Cycle
  • Slew Rate Control on Internal Power Switch
  • External Clock Input for Synchronization
  • External Compensation for Wide Bandwidth Error
  • Programmable Power on Reset Delay
  • Reset Function Filter Time for Fast Negative
  • Programmable Undervoltage Output Monitoring,
    Issuance of Reset if Output Falls Below Set
  • Thermal Shutdown to Protect Device During Excessive
    Power Dissipation
  • ILIM Threshold Protection (Current Limit)
  • Operating Junction Temperature Range: –40°C to 150°C
  • Thermally Enhanced 20-Pin HTSSOP PowerPAD Package
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The TPS55332 is a monolithic high-voltage switching regulator with integrated 3-A, 60-V power MOSFET. The device can be configured as a switch mode step-up power supply with voltage supervisor. Once the internal circuits have stabilized with a minimum input supply of 3.6 V, the system can then have an input voltage range from 1.5 V to 40 V, to maintain a fixed boost output voltage. For optimum performance, VIN/Vout ratios should be set such that the minimum required duty cycle pulse > 150 ns. The supervisor circuit monitors the regulated output and indicates when this output voltage has fallen below the set value. The TPS55332 has a switching frequency range from 80 kHz to 2.2 MHz, allowing the use of low profile inductors and low value input and output capacitors. The external loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions. Using the enable pin (EN), the shutdown supply current is reduced to 1 µA. The device has built-in protection features such soft start on enable cycle, pulse-by-pulse current limit, and thermal sensing and shutdown due to excessive power dissipation.

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Technical documentation

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Type Title Date
* Datasheet TPS55332-Q1 2.2-MHz, 60-V Output Step Up DC/DC Converter datasheet (Rev. B) Jul. 25, 2014
User guides TPS55332EVM USer's Guide Jul. 06, 2009

Design & development

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Hardware development

document-generic User guide
The Texas Instruments TPS55332EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS55332 Switch Mode Power Supply - Boost Regulator. The device offers configurability and can be setup to operate at a switching frequency from 80kHz to 2.2MHz.
  • Withstands Transients up to 60 V, Boost Input Operating Range of 1.5 V to 40 V (VIN)
  • Asynchronous Switch Mode Regulator with External Components (L and C), Output up to 0.5 A (max) in Boost Mode
  • 2.5 V ± 1.5% Feedback Voltage Reference
  • 80 kHz to 2.2 MHz Switching Frequency
  • High Voltage Tolerant Enable (...)
  • Design tools & simulation

    SLVMAE3A.ZIP (36 KB) - PSpice Model
    SLVMAE4.TSC (419 KB) - TINA-TI Reference Design
    SLVMAE5.ZIP (46 KB) - TINA-TI Spice 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
    • (...)

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