Analog Devices, Inc. has announced the LTC1871X, a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET's on-resistance, thereby maximizing efficiency. The LTC1871X's design is optimized for high temperature environments up to 175 degrees C.
It’s 2.5V to 36V input voltage range is designed for high temperature applications such as oil exploration drilling equipment with power sources ranging from 3V to 36V. The LTC1871X’s electrical parameters are 100% tested at 175 degrees C, offering a VREF accuracy of ±2% over the entire –40 to 175 degrees C temperature range. The LTC1871X’s flexibility for use in boost, SEPIC or flyback topologies is ideal for a wide range of battery-powered applications commonly found in downhole drilling applications.
The LTC1871X’s Burst Mode® operation offers low quiescent current, well-suited for applications that require extended operating battery life. Specialized Cu/Ni/Au bond pad plating ensures long life in high temperature environments while a tiny MSOP-10 package offers a highly compact solution footprint.
The LTC1871XMS, offered in an MSOP-10 package, is priced at $125.00 each in 1,000-piece quantities and is available from stock.
