TDA38820

Overview

OptiMOS™ IPOL 20 A Single Output High Efficiency Buck Regulator

The TDA38820 OptiMOSTM IPOL is an easy-to-use, fully integrated DC-DC buck regulator. It uses a fast Constant-On-Time (COT) control scheme, which simplifies the design effort and achieves fast control response. The onboard PWM controller and OptiMOS™ 5 MOSFETs with integrated bootstrap diode make the TDA38820 a small footprint solution, providing high-efficiency power delivery. 

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: 4 mm x 5 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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