TPS53014 4.5V - 28V, 25A Synchronous D-CAP2™ Mode Step-Down Controller | TI.com

TPS53014 (ACTIVE) 4.5V - 28V, 25A Synchronous D-CAP2™ Mode Step-Down Controller

 

Description

The TPS53014 is a single, adaptive on-time D-CAP2™ mode synchronous buck controller. The TPS53014 enables system designers to complete the suite of various end equipment’s power bus regulators with cost effective low external component count and low standby current solution. The main control loop for the TPS53014 uses the D-CAP2 mode control which provides a very fast transient response with no external compensation components. The Adaptive on-time control supports seamless transition between PWM mode at higher load condition and Eco-mode™ operation at light load. Eco-mode allows the TPS53014 to maintain high efficiency during lighter load conditions. The TPS53014 is also able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP and ultra-low ESR ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5 V to 28 V and output voltage from 0.77 V to 7 V.

The TPS53014 is available in the 3-mm × 3-mm 10-pin VSSOP (DGS) package and is specified for an ambient temperature range of –40°C to +85°C.

Features

  • D-CAP2™ mode control
    • Fast transient response
    • No external parts required for loop compensation
    • Compatible with ceramic output capacitors
  • High initial reference accuracy (±1%)
  • Wide input voltage range: 4.5 V to 28 V
  • Output voltage range: 0.77 V to 7.0 V
  • Low-side RDS(on) loss-less current sensing
  • Adjustable soft start
  • Non-sinking pre-biased soft start
  • 500-kHz Switching frequency
  • Cycle-by-cycle overcurrent limiting control
  • Auto-Skip Eco-ModeTM for High Efficiency at Light load
  • OCL/OVP/UVP/UVLO/TSD Protections
  • Adaptive Gate Drivers with Integrated Boost PMOS Switch
  • Thermally Compensated OCP, 4000 ppm/°C
  • 10 pin VSSOP

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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 (#) Number of Phases Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Control mode
TPS53014 Order now 4.5     28     0.76     7     25     1     1     500     500     0.66     Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification    
83     -40 to 85     Catalog     VSSOP | 10     Controller     D-CAP2    
TPS53015 Order now 4.5     28     0.76     7     25     1     1     500     500     0.66     Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
83     -40 to 85     Catalog     VSSOP | 10     Controller     D-CAP2