Automotive
Dual 60VIN, 1A(IOUT) Monolithic 2.5MHz Step-Down DC/DC Converter Withstands 80V Transients
Linear Technology Corporation announces the LT3988, a 60VIN step-down switching regulator that can deliver dual 1A outputs. The LT3988 operates within a VIN range of 4V to 60V, with overvoltage lockout protection against transients as high as 80V, making it ideal for load dump and cold-crank conditions commonly found in automotive applications. The LT3988 can be driven by two separate input rails or by a single input, maximizing design flexibility. Its internal 1.3A switches deliver up to 1A of continuous output current. Switching frequency is user-programmable from 250kHz to 2.5MHz, enabling the designer to maximize efficiency, while avoiding critical noise-sensitive frequency bands. The combination of its thermally enhanced MSOP-16E package and high switching frequency, which keeps the external inductor and capacitors small, provides a compact, thermally efficient footprint.
The Pricing for the LT3988EMSE starts at $3.65 each. An industrial temperature grade version, the LT3988IMSE, is tested and guaranteed to operate from -40°C to 125°C operating junction temperature and is priced at $4.20 each. A high temperature version, the LT3988HMSE, is tested and guaranteed to operate from -40°C to 150°C operating junction temperature and is priced at $4.45 each. All prices are for 1,000-piece quantities and all versions are available from stock.