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STI3408B - 1.2A Synchronous Step-Down Converter

General Description

The STI3408B is a constant frequency, current mode PWM step-down converter.

The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode.

Key Features

  • High Efficiency: Up to 96%.
  • 1.5MHz Constant Frequency Operation.
  • 1.2A Output Current.
  • No Schottky Diode Required.
  • 2.5V to 6.0V Input Voltage Range.
  • Output Voltage as Low as 0.6V.
  • 100% Duty Cycle in Dropout.
  • Low Quiescent Current: 40µ A.
  • Slope Compensated Current Mode Control for Excellent Line and Load Transient Response.
  • Short Circuit Protection.
  • Thermal Fault Protection.
  • Inrush Current Limit and Soft Start.
  • Input over voltage pr.

📥 Download Datasheet

Datasheet Details

Part number STI3408B
Manufacturer SUNTO
File Size 249.78 KB
Description 1.2A Synchronous Step-Down Converter
Datasheet download datasheet STI3408B 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
STI 3408B 1.5MHz, 1.2A Synchronous Step-Down Converter FEATURES  High Efficiency: Up to 96%  1.5MHz Constant Frequency Operation  1.2A Output Current  No Schottky Diode Required  2.5V to 6.0V Input Voltage Range  Output Voltage as Low as 0.6V  100% Duty Cycle in Dropout  Low Quiescent Current: 40µ A  Slope Compensated Current Mode Control for Excellent Line and Load Transient Response  Short Circuit Protection  Thermal Fault Protection  Inrush Current Limit and Soft Start  Input over voltage protection(OVP)  <1µ A Shutdown Current  Tiny SOT23-5 Package APPLICATIONS  Cellular and Smart Phones  Wireless and DSL Modems  PDA/MID/PAD  Digital Still and Video Cameras GENERAL DESCRIPTION The STI3408B is a constant frequency, current mode PWM step-down converter.