Product details

Vin (Min) (V) 3 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 3 Iq (Typ) (uA) 120 Switching frequency (Min) (kHz) 1400 Switching frequency (Max) (kHz) 1400 Features Enable, Forced PWM, Power Good, Soft Start Fixed Rating Catalog Regulated outputs (#) 1 Control mode D-CAP Duty cycle (Max) (%) 95
Vin (Min) (V) 3 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 3 Iq (Typ) (uA) 120 Switching frequency (Min) (kHz) 1400 Switching frequency (Max) (kHz) 1400 Features Enable, Forced PWM, Power Good, Soft Start Fixed Rating Catalog Regulated outputs (#) 1 Control mode D-CAP Duty cycle (Max) (%) 95
SOT-5X3 (DRL) 6
  • Configured for a wide range of applications
    • 3-V to 16-V input voltage range
    • 0.6-V to 7-V output voltage range
    • 0.6-V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55.2-mΩ and 24.3-mΩ MOSFETs
    • 100-µA low quiescent current
    • 1.4-MHz switching frequency
    • Maximum 93% large duty cycle operation
    • Precision EN threshold voltage
    • 1.6-ms fixed typical soft-start time
  • Ease of use and small solution size
    • TPS563252 Eco-mode, TPS563257 FCCM mode at light loading
    • D-CAP3™ control topology
    • Easy layout with integrated bootstrap capacitor
    • Support start-up with prebiased output
    • Open-drain power-good indicator
    • Non-latch for OV, OT, and UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC protection
    • 1.6-mm × 1.6-mm SOT-563 package
  • Create a custom design using the TPS563252 with the WEBENCH Power Designer
  • Create a custom design using the TPS563257 with the WEBENCH Power Designer
  • Configured for a wide range of applications
    • 3-V to 16-V input voltage range
    • 0.6-V to 7-V output voltage range
    • 0.6-V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55.2-mΩ and 24.3-mΩ MOSFETs
    • 100-µA low quiescent current
    • 1.4-MHz switching frequency
    • Maximum 93% large duty cycle operation
    • Precision EN threshold voltage
    • 1.6-ms fixed typical soft-start time
  • Ease of use and small solution size
    • TPS563252 Eco-mode, TPS563257 FCCM mode at light loading
    • D-CAP3™ control topology
    • Easy layout with integrated bootstrap capacitor
    • Support start-up with prebiased output
    • Open-drain power-good indicator
    • Non-latch for OV, OT, and UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC protection
    • 1.6-mm × 1.6-mm SOT-563 package
  • Create a custom design using the TPS563252 with the WEBENCH Power Designer
  • Create a custom design using the TPS563257 with the WEBENCH Power Designer

The TPS56325x is a simple, easy-to-use, high efficiency, high power density, synchronous buck converter with input voltage ranging from 3-V to 16-V and supports up to 3-A continuous current at output voltages between 0.6 V and 7 V.

The TPS56325x employs DCAP3 topology to provide a fast transient response and to support low-ESR output capacitors with no requirement for external compensation. The device can support up to 93% duty cycle operation. Integrated bootstrap capacitor helps achieve single layer PCB and can save total BOM cost.

The TPS563252 operates in Eco-mode, which maintains high efficiency during light loading. The TPS563257 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The device integrates complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in 1.6-mm × 1.6-mm SOT-563 package. The junction temperature is specified from –40°C to 125°C.

The TPS56325x is a simple, easy-to-use, high efficiency, high power density, synchronous buck converter with input voltage ranging from 3-V to 16-V and supports up to 3-A continuous current at output voltages between 0.6 V and 7 V.

The TPS56325x employs DCAP3 topology to provide a fast transient response and to support low-ESR output capacitors with no requirement for external compensation. The device can support up to 93% duty cycle operation. Integrated bootstrap capacitor helps achieve single layer PCB and can save total BOM cost.

The TPS563252 operates in Eco-mode, which maintains high efficiency during light loading. The TPS563257 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The device integrates complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in 1.6-mm × 1.6-mm SOT-563 package. The junction temperature is specified from –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet TPS56325x 3-V to 16-V Input, 3-A Synchronous Buck Converters in SOT-563 Package datasheet PDF | HTML 29 Aug 2022
EVM User's guide TPS56325x Step-Down Converter Evaluation Module User's Guide PDF | HTML 22 Aug 2022
Certificate TPS563257EVM EU RoHS Declaration of Conformity (DoC) 28 Jul 2022
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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Evaluation board

TPS563257EVM — TPS563257 evaluation module for 3-A, synchronous stepdown converter in SOT563

TPS563257 evaluation module (EVM) is a simple, easy-to-use, 3-A synchronous step-down converter in SOT563 package. TPS563257EVM is a fully assembled and tested circuit for evaluating the TPS563257 step-down converter. TPS563257EVM operates from 3-V to 16-V input, 12-V nominal, and provides a (...)
User guide: PDF | HTML
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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 (...)
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