NCV4949A

NCV4949A Voltage Regulator - Low Dropout, Reset, Sense 100 mA, 5.0 V The NCV4949A is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as reset and an uncommitted voltage sense comparator. It is designed for supplying microcontroller/microprocessor controlled systems particularly in automotive applications. The NCV4949A has improved reset behavior for lower input and output voltage levels. Features Operating DC Supply Voltage Range 5.0 V to 28 V Transient Supply Voltage Up to 40 V High Precision Output Voltage 5.0 V ±1% Output Current Capability Up to 100 mA Very Low Dropout Voltage Less Than 0.4 V Reset Circuit Sensing The Output Voltage Programmable Reset Pulse Delay Voltage Sense Comparator Thermal Shutdown and Short Circuit Protections AEC−Q100 Grade 1 Qualified and PPAP Capable These are Pb−Free Devices Supply Voltage (VCC) 1 Output Voltage (Vout) VZ 3 8 CT 4 Preregulator 6.0 V 2.0 mA Sense Input (Si) 2 Regulator Vs 1.23 Vref Reset + 2.0 V - + Sense 1.23 V Reset 6 Sense Output (So) 7 5 GND Figure 1. Representative Block Diagram www.onsemi.com 8 1 8 1 SOIC−8 D SUFFIX CASE 751 MARKING DIAGRAMS 8 V4949A ALYWD G 1 8 SOIC−8 EP PD SUFFIX CASE 751AC V4949A ALYWG G 1 20 SOIC−20 W DW SUFFIX CASE 751AC NCV4949A AWLYYWWG 1 A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Device (Note: Microdot may be in either location) PIN CONNECTIO...