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uP1911R - 2 to 4 Phase PWM Extender

Key Features

  • The uP1911R is a high precision sequence array, which is intended for operation phase number extension in multiphase synchronous-rectified buck converter. It consists of three individual sequence circuits to support up to 2 to 4 phase extension.

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Datasheet Details

Part number uP1911R
Manufacturer uPI Semiconductor
File Size 216.26 KB
Description 2 to 4 Phase PWM Extender
Datasheet download datasheet uP1911R 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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uP1911R 2 to 4 Phase PWM Extender for Multiphase Synchronous Buck Converter General Description Features The uP1911R is a high precision sequence array, which is intended for operation phase number extension in multiphase synchronous-rectified buck converter. It consists of three individual sequence circuits to support up to 2 to 4 phase extension application. This part has 4 PWM outputs for external MOSFET drivers, and 4 ISEN inputs. With this phase extender, a 2-phase buck PWM controller is able to control a 4-phase synchronous buck regulator. This device has an internal LDO that regulates 12V input to a 5.2V output as the power supply of control logic. Designed with 12V CMOS process, the uP1911R provides high switching speed and low power dissipation.