NCV4299AD250R2G ON Semiconductor

NCV4299A Voltage Regulator - Low-Dropout 150 mA The NCV4299A is a family of precision micropower voltage NCV4299A Q I Current Limit and Saturation Sense Bandgap - R Reference SO + R RO INH SO 1.36 V + SI RO 8 A + - + RADJ + - 1.85 V D GND Figure 1. Simplified Block Diagram PIN FUNCTION DESCRIPTION Pin No. Pin No. SOIC14 TSSOP14 Symbol Description 1 1 RADJ Reset Adjust. Use resistor divider to Q to adjust reset threshold lower. Connect to GND if not used. 2 3 D Reset Delay. Connect external capacitor to ground to set delay time. 3 4 GND Ground 4 GND Ground 5 GND Ground 6 5 INH Inhibit. Connect to I if not needed. A high turns the regulator on. Use a low pass filter if transients with slew rate in excess of 10 V/ s may be present on this pin during operation. See Figure 33 for details. 7 7 RO Reset Output. NPN collector output with internal 20 k pullup to Q. Notifies user of out of regulation condition. 8 8 SO Sense Output. NPN collector output with internal 20 k pullup to Q. Can be used to provide early warning of an impending reset condition. 9 11 Q 5.0 V, 3.3 V, 2%, 150 mA output. Use 22 F, ESR 8.0 to ground. 10 GND Ground 11 GND Ground 12 GND Ground 13 13 I Input. Battery Supply Input Voltage. 14 14 SI Sense Input. Can provide an early warning signal of an impending reset condition when used with SO. 2,6,9,10,12 NC Not Connected EPAD EPAD Connect to Ground potential or leave unconnected.