TPS56C230 4.5-V to 18-V, 12-A synchronous buck converter | TI.com

TPS56C230 (PREVIEW) 4.5-V to 18-V, 12-A synchronous buck converter

 

Sample availability

Preproduction samples are available (XTPS56C230RJET). Request now

Description

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

The TPS56C230 operates with supply input voltage ranging from 4.5 V to 18 V. It uses DCAP3™ control mode to provide a fast transient response, good line, load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS56C230 is a high efficiency converter, and provides complete protections including OVP, 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 keep output ripple small at light load.

The TPS56C230 supports both internal and external soft-start time option. It has the internal fixed soft-start time 1.2 ms, if the application needs higher soft-start time, the external 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 to 125°C.

Features

  • 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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WEBENCH® Designer TPS56C230

  Min   Max Range
Vin  V 4.5 to 18.0V
Vout  V 0.6 to 7V
Iout  A ≤ 12A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Package size: mm2:W x L (PKG)
TPS56C230 Order now 4.5     18     0.6     5.5     12     1     500     800     0.08     Enable
Forced PWM
Light Load Efficiency
Over Current Protection
Power Good
Soft Start Adjustable
Forced PWM
Soft Start Adjustable    
D-CAP3     91     -40 to 125     Catalog     VQFN-HR | 20     20VQFN-HR: 9 mm2: 3 x 3 (VQFN-HR | 20)    
TPS568230 Order now 4.5     18     0.6     7     8     1     600     1000     0.11     Enable
Forced PWM
Light Load Efficiency
Over Current Protection
Power Good
Soft Start Adjustable    
D-CAP3     85     -40 to 125     Catalog     VQFN-HR | 20     20VQFN-HR: 9 mm2: 3 x 3 (VQFN-HR | 20)