Product details

Vin (Min) (V) 3 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 4 Iq (Typ) (uA) 120 Switching frequency (Min) (kHz) 1200 Switching frequency (Max) (kHz) 1200 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 3 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 4 Iq (Typ) (uA) 120 Switching frequency (Min) (kHz) 1200 Switching frequency (Max) (kHz) 1200 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
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 28.8-mΩ and 15.4-mΩ RDSON FET
    • 120-µA low quiescent current
    • 1.2-MHz switching frequency
    • Supports maximum 95% duty cycle operation
    • Precision EN threshold voltage
    • 1.39-ms fixed typical soft-start time
  • Ease of use and small solution size
    • Eco-mode (TPS564242) and FCCM mode at light loading (TPS564247)
    • Part of a full P2P family including solutions for 4 A, 5 A, and 6 A and FCCM/ECO operation
    • D-CAP3™ control topology
    • Support start-up with prebiased output
    • Non-latch for OV/OT/UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC limit
    • 6-pin SOT-563 package
  • Create a custom design using the TPS564242 with the WEBENCH Power Designer
  • Create a custom design using the TPS564247 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 28.8-mΩ and 15.4-mΩ RDSON FET
    • 120-µA low quiescent current
    • 1.2-MHz switching frequency
    • Supports maximum 95% duty cycle operation
    • Precision EN threshold voltage
    • 1.39-ms fixed typical soft-start time
  • Ease of use and small solution size
    • Eco-mode (TPS564242) and FCCM mode at light loading (TPS564247)
    • Part of a full P2P family including solutions for 4 A, 5 A, and 6 A and FCCM/ECO operation
    • D-CAP3™ control topology
    • Support start-up with prebiased output
    • Non-latch for OV/OT/UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC limit
    • 6-pin SOT-563 package
  • Create a custom design using the TPS564242 with the WEBENCH Power Designer
  • Create a custom design using the TPS564247 with the WEBENCH Power Designer

The TPS56424x is simple, easy-to-use, high power density, high efficiency synchronous buck converter. The device supports input voltage ranging from 3 V to 16 V and up to 4-A continuous current with a SOT-563 package.

The TPS56424x uses D-CAP3 topology to provide a fast transient response and support low-ESR output capacitors with no requirement for external compensation. It has two grounds, GND and AGND, which should be connected together for optimal thermal performance. AGND also provides a good load and line regulation. The device can support up to 95% duty operation.

The TPS564242 operates in Eco-mode, which maintains high efficiency during light loading. The TPS564247 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. It 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 and has an optimized pinout for easy PCB layout. The junction temperature is specified from –40°C to 125°C.

The TPS56424x is simple, easy-to-use, high power density, high efficiency synchronous buck converter. The device supports input voltage ranging from 3 V to 16 V and up to 4-A continuous current with a SOT-563 package.

The TPS56424x uses D-CAP3 topology to provide a fast transient response and support low-ESR output capacitors with no requirement for external compensation. It has two grounds, GND and AGND, which should be connected together for optimal thermal performance. AGND also provides a good load and line regulation. The device can support up to 95% duty operation.

The TPS564242 operates in Eco-mode, which maintains high efficiency during light loading. The TPS564247 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. It 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 and has an optimized pinout for easy PCB layout. 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 TPS56424x 3-V to 16-V Input Voltage, 4-A Synchronous Buck Converter in a SOT-563 Package datasheet PDF | HTML 27 Apr 2022
User guide TPS56424x Step-Down Converter Evaluation Module User's Guide PDF | HTML 07 Apr 2022
Certificate TPS564242EVM EU RoHS Declaration of Conformity (DoC) 25 Feb 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

TPS564242EVM — TPS564242 evaluation module for 4-A, ECO mode synchronous step-down converter

TPS564242 is a simple, easy-to-use, 4 A synchronous step-down converter in SOT563 package. TPS564242EVM is a fully assembled and tested circuit for evaluating the TPS564242 step-down converter. TPS564242EVM operates from 3-V to 16-V input (12-V nominal) and provides a 1.05-V output at 4A. It also (...)
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SOT-5X3 (DRL) 6 View options

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