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SR2803 - 3A SYNCHRONOUS BUCK CONTROLLER

General Description

The UTC SR2803 is a synchronous buck regulator.

The device provides 3A of continuous load current over a wide input voltage of 4V~28V.

Current mode control provides fast transient response and cycle by cycle current limit.

Key Features

  • ES.
  • Input voltage varies from 4V ~ 28V.
  • Output voltage varies from 0.8V to VCC.
  • Duty ratio varies from 0% to 92% PWM control.
  • With 330kHz typical oscillation frequency.
  • Thermal shutdown and SCP function and soft-start, current limit, enable function.
  • Low ESR output capacitor(Multi-layer chip capacitor).

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UNISONIC TECHNOLOGIES CO., LTD SR2803 330KHZ, 3A SYNCHRONOUS BUCK CONTROLLER „ DESCRIPTION LINEAR INTEGRATED CIRCUIT The UTC SR2803 is a synchronous buck regulator. The device provides 3A of continuous load current over a wide input voltage of 4V~28V. Current mode control provides fast transient response and cycle by cycle current limit. Integrates soft start, and shutdown mode. The UTC SR2803 can provide low-ripple power, high efficiency, and perfect transient characteristics. The duty ratio varies linearly from 0% to 92% in the PWM control. The error amplifier circuit and soft-start circuit included in this device can prevent overshoot at startup.