Automotive 3-V to 17-V, 1-A, high-efficiency and low-IQ, synchronous buck converter in SOT-583


Product details


Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.4 Vout (Max) (V) 5.5 Iout (Max) (A) 1 Iq (Typ) (uA) 4 Switching frequency (Min) (kHz) 1000 Switching frequency (Max) (kHz) 2500 Features Adjustable Current Limit, Enable, Forced PWM, Light Load Efficiency, Output Discharge, Over Current Protection, Power Good, Soft Start Fixed, Synchronous Rectification, UVLO Adjustable Operating temperature range (C) -40 to 150 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

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  • AEC-Q100 qualified for automotive applications:
    • –40°C to 150°C operating junction temp range
    • Level H2 device HBM ESD classification
    • Level C4B CDM ESD classification
  • Functional Safety-Capable
  • High-efficiency DCS-Control™ topology
  • Low quiescent current: 4 µA typical
  • Dynamically selectable forced PWM or auto power save mode operations
  • 2.5-MHz or 1.0-MHz selectable switching frequencies
  • Output current up to 1 A
  • RDSON: 300-mΩ high-side, 100-mΩ low-side
  • Output voltage accuracy of ± 1% over temperature
  • Configurable output voltage options:
    • VFB external divider: 0.6 V to 5.5 V
    • VSET internal divider:
      • 18 options between 0.4 V and 5.5 V
  • No external bootstrap capacitor required
  • Output overcurrent and overtemperature protection
  • 100% duty cycle mode
  • Precise enable input
  • Power-good output
  • Selectable active output discharge
  • Pin-to-pin compatible with TPS629206-Q1 and TPS629203-Q1 devices
  • 0.5-mm pitch 8-pin SOT583 package
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The TPS6292xx-Q1 family of devices are highly efficient, small, and highly flexible synchronous step-down DC-DC converters that are easy to use. A wide 3-V to 17-V input voltage range supports a wide variety of systems powered from either 12-V, 5-V, or 3.3-V supply rails, or single-cell or multi-cell Li-Ion batteries. The TPS629210-Q1 can be configured to run at either 2.5-MHz or 1-MHz in a Forced PWM mode or a variable frequency mode. In Auto PFM mode, the device automatically transitions to Power Save mode at light loads to maintain high efficiency. The low 4-µA typical quiescent current also provides high efficiency down to the smallest loads. TI’s AEE mode holds a high conversion efficiency through the whole operation range without the need of using different inductors by automatically adjusting the switching frequency based on input and output voltages. In addition to selecting the switching frequency behavior, the MODE/Smart-CONFIG input pin can also be used to select between different combinations of external/internal feedback dividers and enabling/disabling the output voltage discharge capability. In the internal feedback configuration, a resistor between the FB/VSET pin and GND can be used to select between 18 different output voltage options (see Table 8-2).

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Technical documentation

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Type Title Date
* Data sheet TPS629210-Q1 3-V to 17-V, 1-A Low IQ Buck Converter in SOT583 Package datasheet May 28, 2021
Certificate TPS629210-Q1EVM EU RoHS Declaration of Conformity (DoC) Jun. 02, 2021
Functional safety information TPS6292xx-Q1 Functional Safety Fit Rate and Pin FMA May 27, 2021
User guide TPS629210-Q1EVM User's Guide May 25, 2021
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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Hardware development

document-generic User guide
The TPS629210-Q1EVM evaluation module (EVM) facilitates the evaluation of the TPS629210-Q1 1-A buck converter in a small SOT-583 package. The EVM outputs a 3.3-V output voltage from input voltages between 3 V and 17 V. The TPS629210-Q1 is a high-efficiency, low-IQ buck converter for use in a variety (...)
  • 4 µA IQ
  • SOT-583 package
  • 17-V input voltage range
  • 3.3-V output voltage
  • 1-A output current

Design tools & simulation

SLVMDM5.ZIP (282 KB) - PSpice Model
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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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