IR3888AMTRPBF

概要

OptiMOS™ integrated point-of-load 20 A single output high efficiency buck regulator

The IR3888A OptiMOS™ IPOL 20 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 enable an enhanced transient response and improved Vout regulation. The onboard PWM controller and OptiMOS™ 5 MOSFETs with integrated bootstrap diode make the IR3888A a small footprint, high efficiency solution for various point-of-load applications requiring.

特長

  • Single 4.3 V to 17 V application or wide input voltage range from 2.0 V to 17 V with an external VCC
  • Precision reference voltage (0.6 V +/- 0.5%)
  • Enhanced fast COT engine stable with ceramic output capacitors and no external compensation
  • Forced continuous conduction mode
  • The switching frequency is set at 800 kHz internally
  • Monotonic start-up with an internal soft-start time & enhanced pre-bias start-up
  • Thermally compensated internal over current protection
  • Enable input with voltage monitoring capability & Power GOOD output
  • Thermal shut down
  • Operating temp: -40 °C < Tj < 125 °C
  • Small size: 6 mm x 5 mm PQFN
  • Halogen-free and RoHS2 compliant with exemption 7a

利点

  • Easy to use fast COT PWM Engine
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Reduced BOM

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