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RT8120 - Single-Phase Synchronous Buck PWM Controller

Description

The RT8120 is a single-phase synchronous buck PWM DC-DC controller designed to drive two N-MOSFET.

It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirements with an internal 0.8V ±1% ( option for 0.6V ±1.5%) reference.

Features

  • Wide Input Voltage Range : 3V to 13.2V.
  • Embedded Switching Boot Diode.
  • 0.8V ±1%, 0.6V ±1.5% Internal Reference.
  • Shoot-Through Protection and Short Pulse Free Technology for Gate Drivers.
  • Fixed Frequency 300kHz.
  • Internal Soft-Start.
  • Over Current Protection by Sensing MOSFET RDS(ON).
  • Enable/Shutdown Control.
  • Drives Two N-MOSFETs.
  • Full Duty Cycle : 0% to 85%.
  • Fast Transient Response.
  • Voltage Mode PWM Control with External Feedback Loop Co.

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Datasheet preview – RT8120

Datasheet Details

Part number RT8120
Manufacturer Richtek
File Size 202.56 KB
Description Single-Phase Synchronous Buck PWM Controller
Datasheet download datasheet RT8120 Datasheet
Additional preview pages of the RT8120 datasheet.

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Full PDF Text Transcription

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® RT8120 Single-Phase Synchronous Buck PWM Controller General Description The RT8120 is a single-phase synchronous buck PWM DC-DC controller designed to drive two N-MOSFET. It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirements with an internal 0.8V ±1% ( option for 0.6V ±1.5%) reference. The RT8120 uses a single feedback loop voltage mode PWM control for fast transient response. An oscillator with fixed frequency 300kHz reduces the external inductor and capacitor component size for saving PCB board area. The RT8120 provides fast transient response to satisfy high current output applications while minimizing external components. It is suitable for high performance graphic processors, DDR and VTT power.
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