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NCP81234 - Dual-Channel/Two-Phase Controller

Datasheet Summary

Description

Power Input Power Supply Input.

5 V LDO.

4.7 mF or more ceramic capacitors must bypass this input to power ground.

Features

  • Single Vin = 4.5 ~ 20 V with Input Feedforward.
  • Integrated 5.35 V LDO.
  • Vout = 0.6 V ~ 5.3 V.
  • Fsw = 200 k ~ 1.2 MHz.
  • PWM Output Compatible to 3.3 V and 5 V DrMOS.
  • Dual.
  • Channel or Two.
  • Phase Operation.
  • DDR Power Mode Option.
  • Interleaved Operation.
  • Differential Current Sense Compatible for both Inductor DCR Sense and DrMOS Iout.
  • 2 Independent Enables with Programmable Input UVLO.
  • Progr.

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Datasheet preview – NCP81234

Datasheet Details

Part number NCP81234
Manufacturer ON Semiconductor
File Size 333.91 KB
Description Dual-Channel/Two-Phase Controller
Datasheet download datasheet NCP81234 Datasheet
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Full PDF Text Transcription

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Dual-Channel/Two-Phase Controller for DrMOS NCP81234 The NCP81234, a dual−channel/two−phase synchronous buck controller, provides flexible power management solutions for applications supported by DrMOS. Operating in high switching frequency up to 1.2 MHz allows employing small size inductor and capacitors. Features • Single Vin = 4.5 ~ 20 V with Input Feedforward • Integrated 5.35 V LDO • Vout = 0.6 V ~ 5.3 V • Fsw = 200 k ~ 1.2 MHz • PWM Output Compatible to 3.
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