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LTC3355 Datasheet 20v 1a Buck DC/dc

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®3355 is a plete input power interrupt ridethrough DC/DC system.

The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost.

The LTC3355 contains a nonsynchronous constant frequency current mode monolithic 1A buck switching regulator to provide a 2.7V to 5V regulated output voltage from an input supply of up to 20V.

Key Features

  • nn VIN Voltage Range: 3V to 20V nn VOUT Voltage Range: 2.7V to 5V nn 1A Current Mode Buck Main Regulator nn 5A Boost Backup Regulator Powered from Single Supercapacitor nn Boost Regulator Operates Down to 0.5V for Maximum Utilization of Supercapacitor Energy nn Programmable Supercapacitor Charge Current to 1A with Overvoltage Protection nn Charger Supports Single Cell CC/CV Battery Charging nn Programmable VIN Current Limit nn Programmable Boost Current Limit nn VIN Power Fail Indicator nn VCAP.

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LTC3355 Distributor