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NCV4264-2ST33T3G

ONNCV4264-2ST33T3G

onsemi
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-223 (TO-261)
4,018 in stock
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Overview

The NCV4264-2ST33T3G is an AEC-Q100 Grade 1 qualified low dropout linear regulator designed for automotive applications requiring a fixed 3.3V output. It handles input voltages up to 45V and provides a steady 100mA of current while maintaining a low quiescent current of 60uA. This regulator is engineered to withstand harsh electrical environments common in vehicle subsystems.

Why Choose This Part

This regulator features robust protection circuitry including -42V reverse polarity protection and a wide operating temperature range from -40C to 150C. Its SOT-223 package offers a balance of small footprint and thermal dissipation, while its AEC-Q100 qualification ensures reliability in mission-critical automotive environments.

Applications

Automotive ECU Power
Providing stable 3.3V power to microcontrollers in body control modules or powertrain sensors directly from the battery rail.
CAN Bus Transceiver Supply
Ideal for powering CAN/LIN transceivers and associated logic where high voltage transient protection is required.
Always-On Systems
Utilized in vehicle systems that remain active while the engine is off due to its low 33uA typical sleep current.

Key Specifications

PSRR 67dB (100Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Current - Output 100mA
Protection Features Over Current, Over Temperature, Reverse Polarity, Short Circuit
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 150degC
Voltage - Input (Max) 45V
Voltage Dropout (Max) 1.266V @ 100mA
Current - Supply (Max) 70 uA
Supplier Device Package SOT-223 (TO-261)
Current - Quiescent (Iq) 55 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

When designing with the NCV4264-2ST33T3G, ensure an output capacitor is placed close to the device for stability. Refer to the datasheet for specific ESR requirements to prevent oscillation. Thermal calculation is necessary to ensure the SOT-223 package can dissipate heat when dropping high input voltages at full load.

Categories

Power Management > LDO Voltage Regulators Automotive > Automotive Sensors