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RT6203E - Synchronous Step-Down Converter

Description

The RT6203E is an adaptive on-time mode synchronous Buck converter.

The main control loop of the RT6203E uses an adaptive on-time mode control which provides a very fast transient response with no external components.

The RT6203E operates from 4.5V to 18V VIN input.

Features

  • an internal soft-start time. Output voltage is adjustable by VID code setting. VOUT range is between 0.6V to 1.62V Features.
  • VID Control Range Via I2C Compatible Interface :  0.6V to 0.7V in 20mV Steps  0.7V to 1.2V in 10mV Steps  1.2V to 1.62V in 20mV Steps.
  • Adjustable Current Limit.
  • Adjustable Thermal Shutdown.
  • Fast Transient Response.
  • Steady 700kHz Switching Frequency.
  • Optimized for All Ceramic Capacitors.
  • Internal Soft-Start.
  • Input Under-Voltage Lo.

📥 Download Datasheet

Datasheet Details

Part number RT6203E
Manufacturer Richtek
File Size 432.78 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT6203E Datasheet

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Full PDF Text Transcription

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® RT6203E 6A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter with VID Control General Description The RT6203E is an adaptive on-time mode synchronous Buck converter. The main control loop of the RT6203E uses an adaptive on-time mode control which provides a very fast transient response with no external components. The RT6203E operates from 4.5V to 18V VIN input. After the initial power-up, the output voltage can be changed by codes sent into the IC via an I2C compatible VID control bus. There are special codes which can be used to program current limit level and thermal shutdown level. Shutdown and startup can be also programmed by special codes. The device also features an internal soft-start time. Output voltage is adjustable by VID code setting. VOUT range is between 0.6V to 1.
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