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

Datasheet Summary

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.

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.

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Datasheet preview – AP3005

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
Additional preview pages of the AP3005 datasheet.

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Full PDF Text Transcription

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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.
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