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3-V to 17-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

US ECCN: EAR99 US/Local Export Classification Number

Inventory: 4,936  
Limit:  50

Quality information

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MSL rating / Peak reflow Call TI
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
VQFN-HR (RQF) | 9 3,000 | LARGE T&R
-40 to 125
Package | Pins VQFN-HR (RQF) | 9
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 125
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Features for the TPS566231

  • Auto-skip mode (TPS566231) and continuous current mode (TPS566238)
  • Input voltage range: 3 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • D-CAP3™ architecture control for fast transient response
  • 0.6-V ±1% reference voltage (25°C)
  • Supports 6-A continuous output current
  • Integrated 20.8-mΩ and 10.6-mΩ RDS(on) internal power switch
  • ULQ™(Ultra Low Quiescent current) feature in TPS566231 to enable long battery life
  • Eco-Mode™ for light-load running to achieve high efficiency in TPS566231
  • 600-kHz switching frequency
  • Supports up to 98% duty operation
  • Adjustable soft-start time by SS pin
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latched for OC, OV, UV and OT protections
  • Small 1.5-mm × 2.0-mm HotRod™ QFN package

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Description for the TPS566231

The TPS566231and TPS566238 are simple, easy to use, high-efficiency, 6-A synchronous buck converters in QFN9-pin 1.5-mm x 2.0-mm package.

The devices operate with wider supply input voltage ranging from 3 V to 17 V. They useDCAP3™ control mode to provide a fast transient response, good line, load regulation, norequirement for external compensation, and support low ESR output capacitors.

TPS566231 operates in Eco-Mode, which maintains high efficiency during light loadoperation. One of the key features of the TPS566231 is its ULQ (Ultra Low Quiescent) to enablelow-bias current. This feature is extremely beneficial for long battery life in low poweroperation.

TPS566238 operates in continuous current mode, which maintains lower output ripple duringall load conditions.

TPS566231 and TPS566238 can support upto 98% duty cycleoperation. They provide complete protection OVP, OCP, UVLO, OTP and UVP with auto-retry.

The TPS566231 and TPS566238 are available in a 9-pin 1.5-mm x 2.0-mmHotRod™ package and the junction temperature is specified from-40oC to 125oC.


Qty Price (USD)
1-99 2.218
100-249 1.832
250-999 1.316
1,000+ 0.99