NCV47701 Low Dropout Regulator - Adjustable Current Limit 5 V to 20 V The NCV47701 is a 350 mA output current integrated low dropout www.onsemi.com regulator designed for use in harsh automotive environments. It includes wide operating temperature and input voltage ranges. The MARKING device is offered with adjustable voltage versions available in 3% DIAGRAMS output voltage accuracy. It has a high peak input voltage tolerance and reverse input voltage protection. It also provides overcurrent 8 protection, overtemperature protection and enable for control of the SOIC8 47701 8 Exposed Pad state of the output voltage. The integrated current sense feature ALYW PD SUFFIX provides diagnosis and system protection functionality. The current 1 CASE 751AC limit of the device is adjustable by resistor connected to CSO pin. 1 Voltage on CSO pin is proportional to output current. 8 Features SOIC8 47701 8 D SUFFIX Adjustable Voltage Version (from 5 V to 20 V) 3% Output Voltage ALYW 1 CASE 751 for 6% Output Voltage Accuracy see NCV47700 Specification 1 Enable Input (5 V Logic Compatible Thresholds) A = Assembly Location for 3.3 V Logic Compatible Thresholds see NCV47710 or L = Wafer Lot NCV47711 Specification Y = Year Adjustable Current Limit (from 10 mA to 350 mA) with 10% W = Work Week accuracy = PbFree Package Protection Features: Current Limitation PIN CONNECTIONS Thermal Shutdown 18 Reverse Input Voltage ADJ V out This is a PbFree Device GND NC EN NC Typical Applications CSO V in Audio and Infotainment System SOIC8 EP, SOIC8 Instrument Cluster Navigation Satellite Radio ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. V V in out C in Cb* R 1 1 F NCV47701 ADJ C out R 2 EN CSO 22 F GND R C CSO CSO 1 F *Required if usage of low ESR output capacitor C is demand, see out Regulator Stability Considerations section. Figure 1. Application Schematic Semiconductor Components Industries, LLC, 2012 1 Publication Order Number: October, 2019 Rev. 3 NCV47701/DNCV47701 V V in out V REF1 VOLTAGE V REF2 REFERENCE PASS DEVICE I = I / 100 AND CSO out CURRENT MIRROR ENABLE EN SATURATION SP PROTECTION THERMAL TSD SHUTDOWN V REF2 + 2.55 V - CSO SP V REF1 GND + 1.275 V - ADJ TSD Figure 2. Simplified Block Diagram PIN FUNCTION DESCRIPTION Pin No. Pin No. SOIC8 EP SOIC8 Pin Name Description 1 1 ADJ Adjustable Voltage Setting Input. See Application Section for more details. 2 2 GND Power Supply Ground. 3 3 EN Enable Input low level disables the IC. 4 4 CSO Current Sense Output, Current Limit setting and Output Current value information. See Application Section for more details. 5 5 V Positive Power Supply Input. in 6 6 NC Not Connected 7 7 NC Not Connected 8 8 V Regulated Output Voltage. out EPAD EPAD Connect to ground potential or leave unconnected. www.onsemi.com 2