L5962

L5962 Multiple linear/switching voltage regulator for car-radio Features ■ Step-down synchronous switching voltage regulator – Internal high-side/ Low-side NDMOS – 1.2 < Vout < 8 V selectable through external resistors – 1.2/2.5 A load current selected through dedicated pin – 185 kHz free-run frequency – SYNC function (220 < fsw < 400 kHz) ■ Linear regulators – 3.3/5 V @ 150 mA standby regulator selected through dedicated pin (VSTBYSEL) – 5/8.5 V @ 350 mA switched linear regulator enabled and selected through I2C bus (VLR1) – 3.3/10 V @ 1 A switched linear regulator enabled and selected through I2C bus (VLR2) ■ 2 High side drivers (0.5 V max drop @ 0.5 A) enabled through I2C bus and equipped with protection circuit against: – short to ground and battery – loss of ground and battery – unsupplied short to battery ■ Reset function with configurable delay (RST, RSTDLY) ■ I2C bus PowerSO36 (slug-up) ■ Enable pin to drive switching regulator and I2C bus logic ■ Under/over voltage battery detector (VBATVW) – Under voltage threshold adjustable through dedicated pin (LVWIN) ■ Load dump protection ■ Independent thermal protection on all regulators Description L5962 is a very versatile device exploiting BCD technology characteristics to provide a complete set of regulated voltages covering all the needs of a car-radio set. In standby condition the device guarantees extremely low quiescent current (90 µA max 40 °C < T < 85 °C) and minimum operating voltage (4.5 V using an external Scho...