IR3846AMTRPBF

Overview

OptiMOS™ Integrated POL 40 A - Single Output High Efficiency Buck Regulator

IR3846A OptiMOS™ IPOL is an easy-to-use, fully integrated DC-DC buck regulator with patented fast Constant-On-Time (COT) control scheme. It simplifies design effort with a small footprint, which fulfill customer needs for high power density. Meanwhile, IR3846A enables an enhanced transient response and improved Vout regulation with single switching frequency, thus it’s ideal for various applications looking for high efficiency, low EMI and compact solution.

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
  • Single switching frequency for EMI-sensitive applications
  • Single mode operation with forced continuous conduction mode for small Vout ripple
  • Enable input with voltage monitoring capability
  • Power Good Output
  • Enhanced pre-bias start-up
  • Monotonic start-up with fixed soft-start time
  • Selectable OCP limit
  • 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 COT PWM engine
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Reduced BOM

Potential Applications

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