TPS54427DRCT Part Information

Details for TPS54427DRCT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 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 TPS54427 uses the DCAP2™ mode control which provides a fast transient response with no external compensation components. The TPS54427 also has a proprietary circuit that enables the device to adopt 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 VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from –40°C to 85°C.

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Part Features

  • 650-kHz Switching Frequency (fSW)
  • Adjustable Soft Start
  • Cycle by Cycle Over Current Limit
  • D-CAP2u2122 Mode Enables Fast Transient Response
  • High Efficiency, Less Than 10 u03bcA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications u2013 70 mu2126 (High Side) and 53 mu2126 (Low Side)
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Output Voltage Range: 0.76 V to 7.0 V
  • Pre-Biased Soft Start
  • Wide VIN Input Voltage Range: 4.5 V to 18 V

Part Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 18V
No. of Outputs 1Outputs
DC / DC Converter IC Case SON
No. of Pins 10Pins
Output Current 4A
Output Voltage Min 760mV
Output Voltage Max 7V
Switching Frequency 650kHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
Operating Temperature Min -40°C
Output Voltage 7V
Primary Input Voltage 18V
RoHS Compliant

Alternative Part Descriptions

  • 4.5V to 18V Input, 4-A Synchronous Step-Down Converter | Texas Instruments

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