NCV8508D2T50G ON Semiconductor

NCV8508 5.0 V, 250 mA LDO with Watchdog and RESET The NCV8508 is a precision micropower Low Dropout (LDO) voltage regulator. The part contains many of the required features for powering microprocessors. Its robustness makes it suitable for severe NCV8508 PIN CONNECTIONS 1 16 Tab = GND NC Delay 1 Lead 1. V OUT 8 NC RESET Delay RESET 2. V IN NC Wakeup 3. WDI GND GND GND Wakeup 4. GND GND GND Sense WDI 5. Wakeup NC WDI 6. RESET V V Sense NC OUT IN 7. Delay V V OUT IN 1 2 SO16L D PAK 7 SO8 EP PACKAGE PIN DESCRIPTION PACKAGE PIN 2 D PAK 7 SO16L SO8 EP PIN SYMBOL FUNCTION 1 8 4 V Regulated output voltage 3.0%. OUT 2 9 5 V Supply Voltage to the IC. IN 3 11 6 WDI CMOS compatible input lead. The Watchdog function monitors the falling edge of the incoming signal. 4 4, 5, 12, 13 2 GND Ground connection. 5 14 7 Wakeup CMOS compatible output consisting of a continuously generated signal used to wake up the microprocessor from sleep mode. 6 15 8 RESET CMOS compatible output lead RESET goes low whenever V drops by more than 7.0% from nominal, or during the OUT absence of a correct Watchdog signal. 7 16 1 Delay Buffered bandgap voltage used to create timing current for RESET and Wakeup from R Delay. 13, 6, 10 NC No Connection. 7 3 Sense Kelvin connection which allows remote sensing of the output voltage for improved regulation. Connect to V if OUT remote sensing is not required. EPAD EPAD Connect to Ground potential or leave unconnected.