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AP2004 - PWM BUCK CONTROLLER

General Description

The AP2004 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator.

Key Features

  • PWM Buck Control Circuitry.
  • Operating voltage can be up to 27V.
  • Under voltage Lockout (UVLO) Protection.
  • Short Circuit Protection (SCP).
  • Soft-start circuit.
  • Variable Oscillator Frequency -- 300Khz Max.
  • 1.25V voltage reference Output.
  • 8-pin SOP package.
  • SOP-8L: Available in “Green” Molding Compound (No Br, Sb).
  • Lead Free Finish/ RoHS Compliant (Note 1) AP2004 PWM BUCK.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Features • PWM Buck Control Circuitry • Operating voltage can be up to 27V • Under voltage Lockout (UVLO) Protection • Short Circuit Protection (SCP) • Soft-start circuit • Variable Oscillator Frequency -- 300Khz Max • 1.25V voltage reference Output • 8-pin SOP package • SOP-8L: Available in “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 1) AP2004 PWM BUCK CONTROLLER General Description The AP2004 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator. All the functions include an on-chip 1.25V reference output, an error amplifier, an adjustable oscillator, a soft-start, UVLO, SCP circuitry, and a push-pull output circuit. Switching frequency is adjustable by trimming CT.