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SA24404 - 4A Synchronous Step-Down Regulator

General Description

The SA24404 is a high efficiency synchronous step-down DC-DC regulator with internal power and synchronous rectifier switches.

It operates using fixed frequency and peak current control over a wide input voltage range of 4V to 36V, and can deliver up to 4A of continuous output current.

Key Features

  • 4V to 36V Input Voltage Range.
  • 4A Output Current Capability.
  • Low RDS(ON) for Internal Switches: 41mΩ Top, 21mΩ Bottom.
  • Typical 30µA Quiescent Current and 1µA Shutdown Current.
  • 300kHz to 2.2MHz Switching Frequency.
  • Synchronization to External Clock.
  • Spread Spectrum Function.
  • Hiccup Mode Output Short-Circuit Protection.
  • EN On/Off Control with Accurate Threshold.
  • Cycle-by-Cycle Peak Current Limit.
  • Power Good Indicator.
  • 1V ±1% Reference V.

📥 Download Datasheet

Datasheet Details

Part number SA24404
Manufacturer Silergy
File Size 1.29 MB
Description 4A Synchronous Step-Down Regulator
Datasheet download datasheet SA24404 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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General Description The SA24404 is a high efficiency synchronous step-down DC-DC regulator with internal power and synchronous rectifier switches. It operates using fixed frequency and peak current control over a wide input voltage range of 4V to 36V, and can deliver up to 4A of continuous output current. The SA24404 is specially designed with a symmetric QFN package and adjustable LX rise time to achieve good EMI performance. The switching frequency can be adjusted from 300kHz to 2.2MHz, or synchronized to an external clock. The frequency can be selected to meet application EMI limits and to avoid noise in important frequency bands.