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Home > Embedded ICs > Embedded - Microcontroller Unit (MCU) > TPS54325PWPR
Texas Instruments

TPS54325PWPR

TPS54325PWPR

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TPS54325PWPR Overview

The TPS54325 device is an adaptive on-time D-CAP2? mode synchronous buck converter. The TPS54325 device enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution.

The main control loop for the TPS54325 uses the D-CAP2? mode control which provides a very fast transient response with no external components. The TPS54325 also has a proprietary circuit that enables the device 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 operates from 4.5-V to 18-V VCC input , and from 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54325 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.

Features

  • D-CAP2? Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2.0 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized for Lower Duty Cycle Applications – 120 mΩ (High Side) and 70 mΩ (Low Side)
  • High Efficiency, less than 10 μA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output

Specifications

Circuit Diagram

TPS54325PWPR

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