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TPS564255B

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3V to 17V input, 4A, 600KHz synchronous step-down converter with OOA mode

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Data sheet

TPS564255B

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 10 Vout (min) (V) 0.6 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed Control mode D-CAP Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0001 Duty cycle (max) (%) 93
Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 10 Vout (min) (V) 0.6 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed Control mode D-CAP Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0001 Duty cycle (max) (%) 93
  • Configured for a wide range of applications
    • 3V to 17V input voltage range
    • 0.6V to 10V output voltage range
    • 0.6V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55.0mΩ and 24.3mΩ MOSFETs
    • 100µA low quiescent current
    • 600kHz switching frequency TPS564252B, TPS564255B, TPS564257B
    • 1.2MHz switching frequency TPS564252C, TPS564257C
    • Maximum 97% large duty cycle operation for TPS564252B, TPS564255B, TPS564257B
    • Maximum 95% large duty cycle operation for TPS564252C, TPS564257C
    • Precision EN threshold voltage
    • 1.6ms fixed typical soft-start time
  • Ease of use and small design size
    • TPS564252B, TPS564252C Eco-mode, TPS564257B, TPS564257C FCCM mode, TPS564255B Out-of-Audio™ (OOA) mode at light loading
    • D-CAP3™ control mode
    • Easy layout with integrated bootstrap capacitor
    • Supports start-up with prebiased output
    • Non-latch for OV, OT, and UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC protection
    • 1.6mm × 1.6mm SOT-563 package
  • Create a custom design using the TPS56425xx with the WEBENCH Power Designer
  • Configured for a wide range of applications
    • 3V to 17V input voltage range
    • 0.6V to 10V output voltage range
    • 0.6V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55.0mΩ and 24.3mΩ MOSFETs
    • 100µA low quiescent current
    • 600kHz switching frequency TPS564252B, TPS564255B, TPS564257B
    • 1.2MHz switching frequency TPS564252C, TPS564257C
    • Maximum 97% large duty cycle operation for TPS564252B, TPS564255B, TPS564257B
    • Maximum 95% large duty cycle operation for TPS564252C, TPS564257C
    • Precision EN threshold voltage
    • 1.6ms fixed typical soft-start time
  • Ease of use and small design size
    • TPS564252B, TPS564252C Eco-mode, TPS564257B, TPS564257C FCCM mode, TPS564255B Out-of-Audio™ (OOA) mode at light loading
    • D-CAP3™ control mode
    • Easy layout with integrated bootstrap capacitor
    • Supports start-up with prebiased output
    • Non-latch for OV, OT, and UVLO protection
    • Hiccup mode for UV protection
    • Cycle-by-cycle OC and NOC protection
    • 1.6mm × 1.6mm SOT-563 package
  • Create a custom design using the TPS56425xx with the WEBENCH Power Designer

The TPS56425xx is a simple, easy-to-use, high efficiency, high power density, synchronous buck converter with input voltage ranging from 3V to 17V and supports up to 4A continuous current at output voltages between 0.6V and 10V.

The TPS56425xx employs D-CAP3 control mode 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 97% duty cycle operation.

The TPS564252B, TPS564252C operates in Eco-mode, which maintains high efficiency during light loading. The TPS564257B, The TPS564257C operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The TPS564255B operates in OOA mode, which prevents audio noise generation. The devices integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

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

The TPS56425xx is a simple, easy-to-use, high efficiency, high power density, synchronous buck converter with input voltage ranging from 3V to 17V and supports up to 4A continuous current at output voltages between 0.6V and 10V.

The TPS56425xx employs D-CAP3 control mode 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 97% duty cycle operation.

The TPS564252B, TPS564252C operates in Eco-mode, which maintains high efficiency during light loading. The TPS564257B, The TPS564257C operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The TPS564255B operates in OOA mode, which prevents audio noise generation. The devices integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in 1.6mm × 1.6mm SOT-563 package. The junction temperature is specified from –40°C to 125°C.
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* Data sheet TPS56425xx 3V to 17V Input, 4A , Synchronous Buck Converters in SOT-563 Package datasheet PDF | HTML 13 Feb 2026
EVM User's guide TPS56425xB Step-Down Converter Evaluation Module PDF | HTML 25 Feb 2026

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