Product details

Vin (Min) (V) 3 Vin (Max) (V) 18 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 6 Iq (Typ) (uA) 50 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Light Load Efficiency, Over Current Protection, Power Good, Soft Start Adjustable, Synchronous Rectification Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 3 Vin (Max) (V) 18 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 6 Iq (Typ) (uA) 50 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Light Load Efficiency, Over Current Protection, Power Good, Soft Start Adjustable, Synchronous Rectification Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
VQFN-HR (RQF) 9 1 mm² 2 x 1.5
  • Configured for rugged applications
    • Input voltage range: 3 V to 18 V
    • Output voltage range: 0.6 V to 7 V
    • 6-A continuous output current
    • 0.6-V ±1% reference voltage (25°C)
    • 98% maximum duty cycle
    • 600-kHz switching frequency
    • Non-latched for OC, OV, UV, and OT protections
    • Built-in output discharge function
  • Numerous pin-compatible options
    • TPS566231 and TPS566238 with SS pin for adjustable soft-start time
    • TPS566231P and TPS566238P with PG pin for power good indicator
    • TPS566231 and TPS566231P for auto-skip mode
    • TPS566238 and TPS566238P for continuous current mode
  • Small solution size and ease of use
    • Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
    • D-CAP3™ architecture control for fast transient response and internal compensation
    • 1.5-mm × 2.0-mm HotRod™ QFN package
    • Create a custom design with the WEBENCH® Power Designer
  • Configured for rugged applications
    • Input voltage range: 3 V to 18 V
    • Output voltage range: 0.6 V to 7 V
    • 6-A continuous output current
    • 0.6-V ±1% reference voltage (25°C)
    • 98% maximum duty cycle
    • 600-kHz switching frequency
    • Non-latched for OC, OV, UV, and OT protections
    • Built-in output discharge function
  • Numerous pin-compatible options
    • TPS566231 and TPS566238 with SS pin for adjustable soft-start time
    • TPS566231P and TPS566238P with PG pin for power good indicator
    • TPS566231 and TPS566231P for auto-skip mode
    • TPS566238 and TPS566238P for continuous current mode
  • Small solution size and ease of use
    • Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
    • D-CAP3™ architecture control for fast transient response and internal compensation
    • 1.5-mm × 2.0-mm HotRod™ QFN package
    • Create a custom design with the WEBENCH® Power Designer

The TPS56623x are simple, easy to use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm x 2.0-mm package.

The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3™ control mode was adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and to support low-ESR output capacitors.

The TPS566231 and TPS566231P operate in Eco-Mode™ for high efficiency during light load operation, and are designed with ULQ™ (Ultra Low Quiescent) feature, achieving 50-uA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions.

The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin.

The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. They are each available in a 9-pin 1.5-mm x 2.0-mm HotRod™ package and the junction temperature is specified from -40°C to 125°C.

The TPS56623x are simple, easy to use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm x 2.0-mm package.

The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3™ control mode was adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and to support low-ESR output capacitors.

The TPS566231 and TPS566231P operate in Eco-Mode™ for high efficiency during light load operation, and are designed with ULQ™ (Ultra Low Quiescent) feature, achieving 50-uA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions.

The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin.

The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. They are each available in a 9-pin 1.5-mm x 2.0-mm HotRod™ package and the junction temperature is specified from -40°C to 125°C.

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Evaluation board

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The TPS566231EVM evaluation module (EVM) is used to evaluate the TPS566231 device. The TPS566231 is a cost effective, high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566231 is its ULQ (ultra low quiescent) to enable low-bias current. This (...)
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The TPS566231PEVM is used to evaluate the TPS566231P device, a high-voltage input, synchronous buck converter with integrated FETs.  One of the key features of the TPS566231P is its ULQ (ultra low quiescent) to enable low-bias current. This feature is extremely beneficial for long (...)
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Simulation model

TPS566238 PSpice Transient Model (Rev. A)

SLUM729A.ZIP (133 KB) - PSpice Model
Simulation model

TPS566231 PSpice Transient Model (Rev. A)

SLUM730A.ZIP (120 KB) - PSpice Model
Simulation model

TPS566231P PSpice Transient Model (Rev. A)

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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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