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LM27403EVM-POL600 . - 

Evaluation Module for High Power Density POL, Synchronous Buck Controller

LM27403EVM-POL600 . - Evaluation Module for High Power Density POL, Synchronous Buck Controller

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Manufacturer Part No:
LM27403EVM-POL600 .
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Product Overview

The LM27403EVM-POL600 is an evaluation module for LM27403 device. The LM27403 is a feature rich, easy to use, synchronous buck controller offering exceptional levels of integration and performance for superior efficiency in high power density, point of load (POL) DC to DC regulator solutions. The LM27403EVM-POL600 is a 600KHz synchronous buck DC to DC regulator showcasing high power density and high efficiency. A 20mm x 15mm module on a single side PCB uses a power block MOSFET. Accurate overcurrent protection is available by leveraging the inductor's sub mohm DCR and MOSFET package resistance. A 2N3904 BJT senses temperature to compensate for the copper temperature coefficient and to provide a thermal shutdown function based on a desired temperature setpoint. Precision enable, power supply tracking, open drain power good indicator, remote sense and synchronization features are also provided. The module is solder mounted directly on the motherboard for maximum thermal performance.
  • Wide input voltage operating range of 3V to 20V
  • Configurable remote output voltage sensing for optimal load regulation performance
  • High conversion efficiency of 91% at 1.8V and 30A
  • Synchronizable to an external clock signal up to 1.2MHz
  • DCR current sensing with temperature compensation
  • 200A/in3 high current and power per unit volume
  • Single supply rail, no additional bias voltage required
  • Adjustable output voltage from 0.6V to 5.5V by changing "trim" resistance
  • Nominal output voltage of 1.8V with 1% feedback accuracy
  • Input circuit damping with optional electrolytic capacitor


Power Management, Communications & Networking, Embedded Design & Development


Exercise care when touching the evaluation module while the fan is not running.


ESD sensitive device, take proper precaution while handling the device.

Product Information

Texas Instruments
Power Management - Voltage Regulator
Synchronous Buck Controller
Evaluation Board LM27403
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