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4.5-V to 18-V, 12-A synchronous buck converter


Package | PIN: VQFN-HR (RJE) | 20
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $4.15
10-24 $3.73
25-99 $3.47
100-249 $3.04
250-499 $2.86
500-749 $2.43
750-999 $2.05
1000+ $1.96


  • Input voltage range: 4.5 V to 18 V
  • DCAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 5.5 V
  • ±1% feedback voltage accuracy (25°C)
  • Continual output current: 12 A
  • integrated 17-mΩ and 5.9-mΩ RDS(on) Internal Power Switch
  • Eco-mode and FCCM mode selectable for light-load running by MODE pin
  • Low quiescent current: 120 µA
  • 500-kHz and 800-kHz selectable switching frequency
  • Adjustable soft-start time with default 1.2 ms
  • Power good indicator
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latch OV, UV, OT and UVLO protections
  • 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package

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Texas Instruments  XTPS56C230RJET

The TPS56C230 is a cost effective, high-voltage input, synchronous buck converter withintegrated FETs.

The TPS56C230 operates with supply input voltage ranging from 4.5 V to 18 V. It usesDCAP3™ control mode to provide a fast transient response, goodline, load regulation, no requirement for external compensation, and supports low equivalent seriesresistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS56C230 is a high efficiency converter, and provides complete protections includingOVP, UVP, OCP, OTP and UVLO. It combines power-good signal and output discharge function.

MODE pin in TPS56C230 can be used to set Eco mode or FCCM mode for light-load running.The Eco mode maintains high efficiency during light load operation, and FCCM mode operations keepoutput ripple small at light load.

The TPS56C230 supports both internal and external soft-start time option. It has theinternal fixed soft-start time 1.2 ms, if the application needs higher soft-start time, theexternal SS pin can be used to achieve it by connecting the external capacitor.

The TPS56C230 is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from –40°C to125°C.