NCV4269A 5.0 V, 3.3 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and NCV4269A I Q Error Amplifier Current and Reference R SO Saturation and Trim Control R RO RO D or Reference SO R ADJ + SI GND Figure 1. Block Diagram PIN CONNECTIONS 1 20 R SI ADJ 114 D I R SI ADJ 18 NC NC D I I Q GND GND GND GND SI SO GND GND GND GND GND GND R RO ADJ GND GND GND GND D GND GND Q NC NC RO SO NC Q RO SO SO8 SO14 SO20L PACKAGE PIN DESCRIPTION Package Pin Number Pin SO8 SO8 EP SO14 SO20L Symbol Function 3 3 1 1 R Reset Threshold Adjust if not used to connect to GND. ADJ 4 4 2 2 D Reset Delay To Set Time Delay, Connect to GND with Capacitor 5 5 3, 4, 5, 6, 4, 5, 6, 7, 14, GND Ground 10, 11, 12 15, 16, 17 3, 8, 9, 13, 18 NC No connection to these pins from the IC. 6 6 7 10 RO Reset Output The OpenCollector Output has a 20 k Pullup Resistor to Q. Leave Open if Not Used. 7 7 8 11 SO Sense Output This OpenCollector Output is Internally Pulled Up by 20 k pullup resistor to Q. If not used, keep open. 8 8 9 12 Q 5 V or 3.3 V Output Connect to GND with a 10 F Capacitor, ESR < 5 1 1 13 19 I Input Connect to GND Directly at the IC with a Ceramic Capacitor. 2 2 14 20 SI Sense Input If not used, Connect to Q. EPAD EPAD Connect to ground potential or leave unconnected