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TMI3255S - 5A Synchronous COT Step-Down Converter

Datasheet Summary

Description

The TMI3255S is a high efficiency, Constant onTime (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 5A current.

TMI3255S integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Features

  • 39mΩ/20mΩ Low RDS(ON) internal FETs.
  • High Efficiency Synchronous-Mode Operation.
  • Wide Input Range: 4.5V to 18V.
  • Feedback Voltage Accuracy 0.6V±1.5%.
  • 600kHz Switch Frequency Typical.
  • Up to 5A Output Current.
  • COT control to achieve fast transient responses.
  • Power Save Mode at Light Load.
  • Integrated internal compensation.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Over Current Protection with Hiccup Mode.
  • Thermal Shutdown.
  • Inrush.

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Datasheet Details

Part number TMI3255S
Manufacturer TOLL
File Size 741.66 KB
Description 5A Synchronous COT Step-Down Converter
Datasheet download datasheet TMI3255S Datasheet
Additional preview pages of the TMI3255S datasheet.

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Full PDF Text Transcription

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TMI3255S 600kHz, 18V, 5A Synchronous COT Step-Down Converter Features ⚫ 39mΩ/20mΩ Low RDS(ON) internal FETs ⚫ High Efficiency Synchronous-Mode Operation ⚫ Wide Input Range: 4.5V to 18V ⚫ Feedback Voltage Accuracy 0.6V±1.5% ⚫ 600kHz Switch Frequency Typical ⚫ Up to 5A Output Current ⚫ COT control to achieve fast transient responses ⚫ Power Save Mode at Light Load ⚫ Integrated internal compensation ⚫ Stable with Low ESR Ceramic Output Capacitors ⚫ Over Current Protection with Hiccup Mode ⚫ Thermal Shutdown ⚫ Inrush Current Limit and Soft Start ⚫ Build in Input Over Voltage Protection ⚫ Available in SOT23-6 Package Description The TMI3255S is a high efficiency, Constant onTime (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 5A current.
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