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Texas Instruments TPS56C231RNNR — Discrete Semiconductors
Texas Instruments

TI TPS56C231RNNR Buck Regulator, 12A, 3.8-17V Input

MPNTPS56C231RNNR
End of Life

Texas Instruments TPS56C231RNNR, Step-Down Buck Regulator, Adjustable Output, 12A, 3.8V to 17V Input, 400kHz/800kHz/1.2MHz Switching Frequency, Synchronous Rectification, -40°C to 125°C, 18-VFQFN Package.

$2.68Ref. price · indicative, final on quote
TPS56C231RNNR datasheet
Packaging18-VFQFN
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

TPS56C231RNNR Technical Specifications
ParameterValue
Output typeAdjustable
Mounting typeSurface Mount
Voltage - input3.8V
Voltage - output5.5V
Voltage - output (Min (Fixed))0.6V
Current - output12A
Frequency400kHz, 800kHz, 1.2MHz
Number of outputs1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case18-VFQFN
Output configurationPositive
Synchronous rectifierYes

Product details

12 A buck in a 3.5 mm × 3.5 mm footprint

The TI TPS56C231RNNR is a synchronous step-down buck regulator that delivers 12 A continuous output from a 3.8 V to 17 V input rail, adjustable down to 0.6 V and up to 5.5 V. It packs into an 18-VFQFN package — small enough for dense point-of-load boards.

Lifecycle and sourcing posture

The TPS56C231RNNR carries an Active lifecycle status and is ROHS3 compliant. No last-time-buy or obsolescence risk for new designs. No drop-in replacement is listed on the official cross-reference; the closest functional peer from TI is the LMR33630APCQRNXRQ1, but that is a 3 A part in a different package (wettable-flank QFN), not a pin-compatible swap.

Frequently asked questions

Does TPS56C231RNNR have a drop-in replacement or equivalent?

No official drop-in replacement is listed. The LMR33630APCQRNXRQ1 is a functional peer (buck, adjustable, synchronous) but rated for 3 A and packaged in a different footprint — not a pin-compatible swap.

What package does TPS56C231RNNR come in?

It is supplied in Tape & Reel (TR) or Cut Tape (CT) format, in an 18-VFQFN package with an 18-VQFN-HR (3.5 mm × 3.5 mm) supplier device package.