NCV4276C Voltage Regulator - Low-Drop 400 mA The NCV4276C is a 400 mA output current integrated low dropout www.onsemi.com regulator family designed for use in harsh automotive environments. It includes wide operating temperature and input voltage ranges. The MARKING device is offered with 3.3 V, 5.0 V, and adjustable voltage versions DIAGRAMS available in 2% output voltage accuracy. It has a high peak input voltage tolerance and reverse input voltage protection. It also DPAK provides overcurrent protection, overtemperature protection and 76CXXG 5PIN inhibit for control of the state of the output voltage. The NCV4276C ALYWW DT SUFFIX 2 family is available in DPAK and D PAK surface mount packages. 1 CASE 175AA 5 The output is stable over a wide output capacitance and ESR range. 1 The NCV4276C has improved startup behavior during input voltage transients. The NCV4276C is pin for pin compatible with NCV4276B. 2 D PAK Features NC 5PIN 3.3 V, 5.0 V, and Adjustable Voltage Version (from 2.5 V to 20 V) V4276CXX DS SUFFIX AWLYWWG 2% Output Voltage 1 CASE 936A 5 400 mA Output Current 500 mV (max) Dropout Voltage (5.0 V Output) 1 Inhibit Input *Tab is connected to Pin 3 on all packages. Very Low Current Consumption A = Assembly Location Fault Protection WL, L = Wafer Lot +45 V Peak Transient Voltage Y = Year 42 V Reverse Voltage WW = Work Week G = PbFree Device Short Circuit XX = 33 (3.3 V) Thermal Overload = 50 (5.0 V) NCV Prefix for Automotive and Other Applications Requiring = AJ (Adj. Voltage) Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable These are PbFree Devices ORDERING INFORMATION See detailed ordering and shipping information in the ordering information section on page 14 of this data sheet. Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: October, 2019 Rev. 1 NCV4276C/DNCV4276C I Q Error Current Limit and Amplifier Saturation Sense Bandgap Reference + Thermal Shutdown INH GND NC Figure 1. NCV4276C Block Diagram I Q Error Current Limit and Amplifier Saturation Sense Bandgap Reference + Thermal Shutdown INH GND VA Figure 2. NCV4276C Adjustable Block Diagram PIN FUNCTION DESCRIPTION Pin No. Symbol Description 1 I Input Battery Supply Input Voltage. 2 INH Inhibit Set lowto inhibit. 3 GND Ground Pin 3 internally connected to heatsink. 4 NC / VA Not connected for fixed voltage version / Voltage Adjust Input for adjustable voltage version use an external voltage divider to set the output voltage 5 Q Output: Bypass with a capacitor to GND. See Figures 3 to 8 and Regulator Stability Considerations section. www.onsemi.com 2