36-V, 4-A synchronous step-down regulator tackles high temperature and high reliability demands
The LT3690 operates within a V IN range of 3.9 V to 36 V, and offers transient protection to 60 V, making it well suited for load dump and cold-crank conditions found in automotive applications.
The LT3690’s Burst Mode operation requires only 70 µA of quiescent current, ideal for applications such as automotive or telecom systems, which demand always-on operation and optimum battery life. Switching frequency is user-programmable from 170 kHz to 1.5 MHz, enabling the designer to optimize efficiency while avoiding critical noise-sensitive frequency bands. The combination of its 4 mm x 6 mm QFN-26 package and high switching frequency keeps external inductors and capacitors small, providing a compact, thermally efficient footprint.
The H-grade version operates from -40°C to a junction temperature of 150°C, and is guaranteed and tested throughout this temperature range. Similarly, the MP-grade version operates from -55°C to a junction temperature of 150°C, and is guaranteed and tested throughout this temperature range. Electrical specifications for the H-grade and the MP-grade are identical to the E and I grades. The devices are ideal for automotive, industrial and military applications, which are subject to high ambient temperatures.
Availability and Pricing
Both the LT3690HUFE and the LT3690MPUFE are available in 26-lead 4mm x 6mm QFN packages. Pricing starts at $5.70 and $14.70 each, respectively, for 1,000-piece quantities and are available from stock.
More information LT3690 synchronous step-down switching regulator at www.linear.com/product/LT3690
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
