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MAX42403 - 3.5A Fully Integrated Synchronous Buck Converter

Download the MAX42403 datasheet PDF. This datasheet also covers the MAX42402 variant, as both devices belong to the same 3.5a fully integrated synchronous buck converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX42402/MAX42403 IC are a tiny synchronous buck converter with integrated high-side and low-side switches.

The MAX42402/MAX42403 are designed to deliver up to 2.5A/3.5A with a wide, 4.5V to 36V input voltage range.

Voltage quality can be monitored by observing the PGOOD signal.

Key Features

  • Multiple Functions for Small Size.
  • Operating Input Voltage Range: 4.5V to 36V.
  • Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A.
  • 27μA Quiescent Current in Skip Mode.
  • 1.5MHz/400kHz Switching Frequency.
  • Spread-Spectrum Option.
  • 3.5ms (1.5MHz)/2.5ms (400kHz) Internal SoftStart.
  • Programmable 0.8V to 12V Output Voltage Range.
  • 99% Duty Cycle Operation with Low Dropout.
  • High Precision for Safety-Cr.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX42402-AnalogDevices.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number MAX42403
Manufacturer Analog Devices
File Size 0.97 MB
Description 3.5A Fully Integrated Synchronous Buck Converter
Datasheet download datasheet MAX42403 Datasheet

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Other Datasheets by Analog Devices

Part Number Description
MAX42402 2.5A Fully Integrated Synchronous Buck Converter
MAX42405 5A Fully Integrated Synchronous Buck Converters
MAX42406 6A Fully Integrated Synchronous Buck Converters
MAX42408 8A Fully Integrated Buck Converter
MAX42410 10A Fully Integrated Buck Converter

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
36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converter MAX42402/MAX42403 General Description The MAX42402/MAX42403 IC are a tiny synchronous buck converter with integrated high-side and low-side switches. The MAX42402/MAX42403 are designed to deliver up to 2.5A/3.5A with a wide, 4.5V to 36V input voltage range. Voltage quality can be monitored by observing the PGOOD signal. The IC can operate in dropout by running at 99% duty cycle, making it ideal for industrial applications. The MAX42402/MAX42403 offer externally programmable output voltage. Fixed internal frequency options of 1.5MHz/400kHz are available, which allow for small external components and reduced output ripple.