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LTC7851 - DC/DC Controller

General Description

The LTC®7851/LTC7851-1 are quad output multiphase synchronous step-down switching regulator controllers that employ a constant frequency voltage mode architecture.

They maintain excellent current balance between channels when paralleled with their internal current sharing loop.

Key Features

  • nn Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs nn Voltage Mode Control with Accurate Current Sharing nn ±0.75% 0.6V Voltage Reference nn Quad Differential Output Voltage Sense Amplifiers nn Multiphase Capability nn Phase-Lockable Fixed Frequency 250kHz to 2.25MHz nn Lossless Current Sensing Using Inductor DCR or Precision Current Sensing with Sense Resistor or DrMOS with Integrated Current Sensing nn VCC Range: 3V to 5.5V nn VOUT Range: 0.6V to VCC.
  • 0.5V nn Po.

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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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LTC7851/LTC7851-1 Quad Output, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing FEATURES nn Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs nn Voltage Mode Control with Accurate Current Sharing nn ±0.75% 0.6V Voltage Reference nn Quad Differential Output Voltage Sense Amplifiers nn Multiphase Capability nn Phase-Lockable Fixed Frequency 250kHz to 2.25MHz nn Lossless Current Sensing Using Inductor DCR or Precision Current Sensing with Sense Resistor or DrMOS with Integrated Current Sensing nn VCC Range: 3V to 5.5V nn VOUT Range: 0.6V to VCC – 0.