NCV8772 Ultra Low I 350 mA LDO q Regulator with Enable and Reset The NCV8772 is 350 mA LDO regulator with integrated reset functions dedicated for microprocessor applications. Its robustness allows NCV8772 V in V out * Thermal RO Shutdown Driver With Erorr Amplifier Reset Comparator Reset Driver Current Limit EN Enable Reference Timing DT** Circuit *** Oscillator GND * 5 V OPTION ONLY ** D2PAK7 ONLY ** Pull Down Resistor (typ 150 k ) active only in Reset State * Figure 2. Simplified Block Diagram PIN CONNECTIONS PIN 1.V PIN 1.V PIN 1.V in in in 2. RO 2. RO 2. RO Tab, 3.GND Tab, 3.GND 3. NC 4. EN 4. EN Tab, 4.GND 5. V 5. V 5. EN out out 6. DT 7. V out 1 1 1 2 2 DPAK 5 D PAK5 D PAK7 Figure 3. Pin Connections PIN FUNCTION DESCRIPTION Pin No. DPAK 5 Pin No. D2PAK 5 D2PAK 7 Pin Name Description 1 1 V Positive Power Supply Input. Connect 0.1 F capacitor to ground. in 2 2 RO Reset Output. 30 k internal Pullup resistor connected to V . RO goes Low when V out out drops by more than 7% (typ) from its nominal value (for NCV8772y devices with y = 1,2,3,...) or more than 10% (typ) from its nominal value (for NCV8772y devices with y = A, B, C,...). 3 NC Not Connected 3, TAB 4, TAB GND Power Supply Ground. 4 5 EN Enable Input. Low level disables the IC. 6 DT Reset Delay Time Select. Short to GND or connected to V to select time. out 5 7 V Regulated Output Voltage. Connect 1 F capacitor with ESR < 100 to ground. out