TDA38840

Overview

OptiMOS™ integrated point-of-load 40 A single output high efficiency buck regulator

The TDA38840 OptiMOS™ IPOL 40 A is an easy-to-use, fully integrated DC-DC buck regulator with patented fast Constant-On-Time (COT) control scheme. It simplifies the design effort, while enabling an enhanced transient response and improved Vout regulation. The onboard PWM controller and OptiMOS™ 5 MOSFETs with integrated bootstrap diode make the TDA38840 a small footprint, high efficiency solution for various point-of-load applications.

Summary of Features

  • Wide input voltage range from 2.0 V to 17 V
  • Precision reference voltage (0.6 V +/- 0.5%)
  • Compensation free enhanced COT engine
  • Optional forced continuous conduction mode and diode emulation for enhanced light load efficiency
  • Programmable switching frequency from 600 kHz to 2 MHz
  • Selectable soft-start time
  • Enhanced pre-bias start-up
  • Selectable OCP limit
  • Enable input with voltage monitoring capability
  • Power Good output
  • Thermal shut down
  • Operating temp: -40 °C < Tj < 125 °C
  • Small Size: 5 mm x 6 mm PQFN
  • Halogen-free and RoHS2 compliant with exemption 7a

Benefits

  • Easy to use fast Constant On-Time PWM Engine
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Low BOM

Potential Applications

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