Buck Converter Includes Performance Monitoring
Mon, 09/08/2008 - 6:46am
Provided in a 4-mm² MLPQ 12-pin package, the AS7620, a hysteretic, high efficiency, 32 V step-down DC/DC buck converter from austriamicrosystems provides both “early-power-fail” warning and “power-good” signals for alerts in performance-sensitive systems. Optimized for industrial 24 V applications, the converter is available with a fixed 3.3 V output or an adjustable output voltage between 1.2 V and VIN with an input between 3.6 and 32 V at an efficiency of up to 93%. Features include a 100% duty-cycle and a pin-selectable peak current limit, and the device operates on less than 37 µA when delivering 500 µA and about 100 µA with a 10 mA output (shutdown current is 1 µA). The buck converter has an operation temperature range from -40°C to 85°C.