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AP3503E - 3A Synchronous DC-DC Buck Converter

General Description

The AP3503E is a 340kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation.

The AP3503E exhibits high efficiency at light load.

Key Features

  • Input Voltage Range: 4.5V to 18V.
  • Fixed 340kHz Frequency.
  • High Efficiency at Light Load.
  • High Efficiency: up to 95%.
  • Output Current: 3A.
  • Current Mode Control.
  • Built-in Over Current Protection.
  • Built-in Thermal Shutdown Function.
  • Built-in UVLO Function.
  • Built-in Over Voltage Protection.
  • Programmable Soft-start.
  • Hiccup Mode SCP.

📥 Download Datasheet

Datasheet Details

Part number AP3503E
Manufacturer BCD
File Size 363.82 KB
Description 3A Synchronous DC-DC Buck Converter
Datasheet download datasheet AP3503E 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.

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Preliminary Datasheet 340kHz, 3A Synchronous DC-DC Buck Converter AP3503E General Description The AP3503E is a 340kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. The AP3503E exhibits high efficiency at light load. The device integrates N-channel power MOSFET switches with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit. The AP3503E employs complete protection to ensure system security. Including output Over Voltage Protection, input Under Voltage Lock Out, programmable Soft Start, Over Temperature Protection and hiccup mode Short Circuit Protection. This IC is available in PSOP-8 package.