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RT7248 - Synchronous Step-Down Converter

General Description

The RT7248 is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 2A output current from a 4.5V to 18V input supply.

The RT7248's current mode architecture and external compensation allow the transient response to be optimized over a wide input range and loads.

Key Features

  • ±1.5% High Accuracy Feedback Voltage.
  • Input Voltage Range : 4.5V to 18V.
  • 2A Output Current.
  • Integrated N-MOSFETs.
  • Current Mode Control.
  • 340kHz Fixed Frequency Operation.
  • Output Adjustable Voltage Range : 0.923V to 15V.
  • Efficiency Up to 95%.
  • Programmable Soft-Start.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Cycle-by Cycle Over Current Protection.
  • Input Under Voltage Lockout.
  • Output Under Voltage Protection.
  • Thermal Shutdo.

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Datasheet Details

Part number RT7248
Manufacturer Richtek
File Size 239.17 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT7248 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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Design Sample & Tools Buy ® RT7248 2A, 18V, 340kHz Synchronous Step-Down Converter General Description The RT7248 is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 2A output current from a 4.5V to 18V input supply. The RT7248's current mode architecture and external compensation allow the transient response to be optimized over a wide input range and loads. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start up. The RT7248 also provides under voltage protection and thermal shutdown protection. The low current (< 3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.