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L5962 Datasheet(PDF) 1 Page - STMicroelectronics |
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L5962 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 24 page  December 2009 Doc ID 16819 Rev 2 1/24 1 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 ■ 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 Schottky diode for the back-up function). PowerSO36 (slug-up) Table 1. Device summary Order code Package Packing L5962 PowerSO36 Tray L5962TR PowerSO36 Tape and reel www.st.com |
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