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AP3005 - 2A 420kHz PWM BUCK DC-DC CONVERTER

General Description

The AP3005 is a 420kHz fixed frequency PWM buck (step-down) DC-DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation.

The device includes a voltage reference, an oscillation circuit, an error amplifier, an internal PMOS and etc.

Key Features

  • 2A Constant Output Current.
  • 130mΩ RDSON Internal Power MOSFET Switch.
  • Up to 94% Efficiency.
  • Fixed 420kHz Frequency.
  • Wide 4.75V to 25V Input Voltage Range.
  • Output Voltage Adjustable from 0.8V to 21V.
  • Built in Thermal Shutdown Function.
  • Built-in Current Limit Function.
  • Built-in Soft-Start Function.
  • Support Ceramic or Electrolytic Capacitors.

📥 Download Datasheet

Datasheet Details

Part number AP3005
Manufacturer BCD Semiconductor
File Size 324.63 KB
Description 2A 420kHz PWM BUCK DC-DC CONVERTER
Datasheet download datasheet AP3005 Datasheet

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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.

View original datasheet text
Data Sheet 2A 420kHz PWM BUCK DC-DC CONVERTER AP3005 General Description The AP3005 is a 420kHz fixed frequency PWM buck (step-down) DC-DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. The device includes a voltage reference, an oscillation circuit, an error amplifier, an internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. The enable function, over current protection function, short circuit protection function and soft-start function are built inside. When OCP or SCP happens, the operation frequency will be reduced from 420kHz to 40kHz. An internal compensation block is employed to minimize external components.