TPS566231

ACTIVE

3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 18 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 Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 50 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 18 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 Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 50 Duty cycle (max) (%) 98
VQFN-HR (RQF) 9 3 mm² 2 x 1.5
  • Configured for rugged applications
    • 3-V to 18-V input voltage range
    • 0.6-V to 7-V output voltage range
    • 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
  • Mandarin data sheet available
  • Small design size and ease of use
    • Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
    • D-CAP3™ control mode 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
    • 3-V to 18-V input voltage range
    • 0.6-V to 7-V output voltage range
    • 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
  • Mandarin data sheet available
  • Small design size and ease of use
    • Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
    • D-CAP3™ control mode 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 × 2.0-mm package.

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

The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA 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. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. 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 × 2.0-mm package.

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

The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA 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. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. The junction temperature is specified from –40°C to 125°C.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TPS566238 ACTIVE 3-V to 18-V input, 6-A synchronous step-down regulator with forced continuous conduction mode Offers FCCM capabilities.

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS566231EVM — 3-V to 18-V VIN, 6-A synchronous step-down converter evaluation module

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 (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS566231PEVM — TPS566231P 6-A synchronous step-down converter with PGOOD evaluation module

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 (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS566231 PSpice Transient Model (Rev. A)

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

TPS566231P PSpice Transient Model (Rev. A)

SLUM773A.ZIP (127 KB) - PSpice Model
Simulation model

TPS566238 PSpice Transient Model (Rev. A)

SLUM729A.ZIP (133 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RQF) 9 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos