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RT6258B - 23V Synchronous Step-Down Converter

Datasheet Summary

Description

The RT6258B/C is an advanced constant on-time (ACOT®) mode synchronous buck converter.

The main control loop of the RT6258B/C using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response.

Features

  • 4.5V to 23V (RT6258B) and 5.1V to 23V (RT6258C) Input Voltage Range 8A Output Current.
  • ACOT®Mode Performs Fast Transient Response.
  • ACOT® Architecture to Enable All MLCC Output Capacitor Usage.
  • Fixed 750kHz (RT6258C) and 500kHz (RT6258B) Switching Frequency.
  • High Efficient Internal Power MOSFET Switch- 20mΩ (High-Side) and 10mΩ (Low-Side).
  • Fixed 3.3V (RT6258B) and 5V (RT6258C) LDOs Output Supply 100mA.
  • Pre-biased Soft-Start.
  • Cycle-by-Cycle Over-Current Pro.

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Datasheet preview – RT6258B

Datasheet Details

Part number RT6258B
Manufacturer Richtek
File Size 390.75 KB
Description 23V Synchronous Step-Down Converter
Datasheet download datasheet RT6258B Datasheet
Additional preview pages of the RT6258B datasheet.

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Full PDF Text Transcription

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® RT6258B/C 8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT6258B/C is an advanced constant on-time (ACOT®) mode synchronous buck converter. The main control loop of the RT6258B/C using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response. The RT6258B operates from 4.5V to 23V input voltage and the RT6258C operates from 5.1V to 23V. Ordering Information RT6258B/C Package Type QUF : UQFN-12HL 3x3 (FC) (U-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Output Voltage B : 3.3V C : 5.1V Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes.
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