Standby current consumption of less than 3µA, ideal for always-on systems

Analog Devices has announced the LT8606, a new 350mA, 42V input synchronous step-down switching regulator.

The new product's unique synchronous rectification topology not only delivers 92% conversion efficiency at a switching frequency of 2MHz, but also allows designers to avoid noise-sensitive critical frequency bands such as AM radio while using a solution with a very compact footprint.

Burst Mode® operation keeps standby current consumption under 3µA under no-load standby conditions, making it ideal for always-on systems. The wide input voltage range of 3.0V to 42V makes it ideal for automotive applications that require minimum input voltages as low as 3.0V and load dump transients greater than 40V during cold crank and stop-start scenarios.

The LT8606 utilizes internal high-efficiency top and bottom power switches, with the necessary boost diode, oscillator, control, and logic circuitry integrated onto a single die. Low-ripple burst mode operation maintains high efficiency at low output currents, keeping output ripple below 10 mVP-P. Special design techniques and high-speed processes enable high efficiency over a wide input voltage range, and the LT8606's current-mode topology ensures fast transient response and excellent loop stability. Other features include internal compensation, a power good flag, output soft-start/tracking, and overtemperature protection.