LT3991 48V to 3.3V 300kHz Application

Reference Design using part LT3991 by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

For End Products

  • Automotive and Transportation
  • Industrial
  • Portable

Description

  • Circuit shows Low minimum switch on time of Circuit shows LT3991 allows the high step-down ratio, 48VIN to 3.3VOUT, at 300kHz switching frequency

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    4.3 to 55 V
  • Output Voltage
    3.3 V
  • Output Current
    1.2 A
  • Topology
    Buck

Featured Parts (16)

Featured Parts
Part Number Manufacturer Type Description
LT3991IDD#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 1.19V to 30V 1.2A 10-Pin DFN EP T/R Buy
LT3991IMSE-5#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 5V 1.2A 10-Pin MSOP EP Tube Buy
LT3991IMSE#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 1.19V to 30V 1.2A 10-Pin MSOP EP T/R Buy
LT3991EMSE#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 1.19V to 30V 1.2A 10-Pin MSOP EP T/R Buy
LT3991IMSE-3.3#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 3.3V 1.2A 10-Pin MSOP EP Tube Buy
LT3991IDD#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 1.19V to 30V 1.2A 10-Pin DFN EP Tube Buy
LT3991EMSE-3.3#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 3.3V 1.2A 10-Pin MSOP EP Tube Buy
LT3991IMSE-3.3#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 3.3V 1.2A 10-Pin MSOP EP T/R Buy
LT3991EDD#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 1.19V to 30V 1.2A 10-Pin DFN EP Tube Buy
LT3991EMSE-3.3#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 3.3V 1.2A 10-Pin MSOP EP T/R Buy
LT3991EMSE-5#PBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 5V 1.2A 10-Pin MSOP EP Tube Buy
LT3991EMSE-5#TRPBF Analog Devices DC to DC Converter and Switching Regulator Chip Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 5V 1.2A 10-Pin MSOP EP T/R Buy
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