Charge Pump Buck/Boost Converter, LDO Regulator, Very Low Quiescent Current, 600 mA/300 mA NCV48920 www.onsemi.com The NCV48920 is 600 mA buck and 300 mA boost charge pump regulator with integrated Very Low Quiescent Current LDO regulator for automotive applications. The NCV48920 requires very low MARKING number of external components. The Enable function can be used to DIAGRAMS disable the chip and hence to reduce quiescent current down to 1 A. 14 The NCV48920 contains protection functions such as current limit, V489 thermal shutdown and reverse bias current protection. TSSOP14 EPAD 20xz 14 CASE 948AW ALYW Features 1 Output Voltage: 5 V 1 Output Current: 600 mA Buck and 300 mA Boost Mode x = Output Voltage Option: 5 5 V Buck Mode Input Voltage Operation: down to 11.8 V z = Reset Delay Time Options: Boost Mode Input Voltage Operation: from 3 V = 0 0 ms, 1 2 ms, 2 4 ms, = 3 8 ms, 4 16 ms, 5 32 ms, Enable Function (1 A max quiescent current when disabled) = 6 64 ms, 7 128 ms Microprocessor Compatible Control Functions: A = Assembly Location L = Wafer Lot Reset Output Enable Input Y = Year NCV Prefix for Automotive and Other Applications Requiring W = Work Week Unique Site and Control Change Requirements AECQ100 Grade 1 = PbFree Package Qualified and PPAP Capable (Note: Microdot may be in either location) Protection Features: Current Limitation Thermal Shutdown ORDERING INFORMATION Reverse Bias Output Current See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet. This is a PbFree Device Typical Applications (for safety applications refer to Figure 37) StopStart Applications Body Electronics Instruments and Clusters Infotainment LED Supply C FLY C+ C V BAT V out V in V V out DD C C in out V CP C CP NCV48920 Microprocessor RO I/O OFF ON EN GND Figure 1. Application Schematic Semiconductor Components Industries, LLC, 2018 1 Publication Order Number: July, 2020 Rev. 1 NCV48920/DNCV48920 C+ C V CP V V Charge Pump in out LDO Power Switches with Overcurrent and R RO Overtemperature Protections Charge Pump V and RO ref Reset Circuitry Drivers and Logic I out mon V in V CP Monitor V ref I out mon EN Enable V V GND ref ref Figure 2. Simplified Block Diagram 1 V V CP out NC RO NC C+ EPAD NC NC C EN NC NC V GND in TSSOP14 EPAD Figure 3. Pin Connections (Top View) PIN FUNCTION DESCRIPTION Pin No. Pin Name Description 1 V Charge Pump Output Voltage (Input Voltage of LDO). CP 2 NC Not Connected. 3 C+ Flying Capacitor Positive Connection. 4 NC Not Connected. 5 C Flying Capacitor Negative Connection. 6 NC Not Connected 7 V Charge Pump Input Voltage. in 8 GND Power Supply Ground. 9 NC Not Connected. 10 EN Enable Input low level disables the IC. 11 NC Not Connected. 12 NC Not Connected. 13 RO Reset Output. 30 k internal Pullup resistor connected between RO and V . RO goes Low when V is out of out out regulation. See ELECTRICAL CHARCTERISTICS table for delay time specifications. 14 V Regulated Output Voltage of LDO. out EPAD EPAD Connect to ground potential or leave unconnected. www.onsemi.com 2