NCV4274ADS50R4G Overview
The NCV4274ADS50R4G is a high-precision, low-power linear voltage regulator developed by ON Semiconductor. It provides an output current of up to 400 mA and is available in DPAK, D2PAK, and SOT-223 packages, making it suitable for space-constrained or high-stability applications.
The chip offers output voltage accuracy of ±2.0% or ±4.0% depending on the version, with a maximum dropout voltage of just 0.5 V. It supports input voltages up to 40 V and draws only 150 μA of quiescent current under a 1 mA load, making it ideal for automotive electronics and battery-powered microprocessor systems.
The operation of NCV4274ADS50R4G is based on linear regulation technology. The input voltage is regulated through an internal precision reference and an error amplifier to maintain a stable output voltage (such as 5.0 V), even when input voltage or load current varies. The device also integrates multiple protection features, including reverse battery protection, short-circuit protection, and thermal shutdown. It can withstand load dump transients, ensuring reliable performance in harsh automotive environments.
NCV4274ADS50R4G Pinout
Input (Pin 1): Power input pin, connected to the input voltage before regulation.
Ground (Pins 2 and 4): Ground pins, used for circuit grounding and providing an electrical reference point.
Output (Pin 3): Regulated output pin, delivers a stable output voltage to drive external loads.
NCV4274ADS50R4G Specification
Parameter | Value |
Category | Integrated Circuits (ICs) > PMIC - Voltage Regulators - Linear |
Series | Automotive, AEC-Q100 |
Packaging | Tape & Reel (TR) |
Part Status | Active |
Output Configuration | Positive |
Output Type | Fixed |
Number of Regulators | 1 |
Input Voltage (Max) | 40V |
Output Voltage (Min/Fixed) | 5V |
Output Voltage (Max) | - |
Dropout Voltage (Max) | 0.5V @ 250mA |
Output Current | 400mA |
Quiescent Current (Iq) | 250µA |
Current - Supply (Max) | 35mA |
PSRR | 60dB (100Hz) |
Control Features | - |
Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
Operating Temperature | -40°C ~ 150°C |
Mounting Type | Surface Mount |
Package / Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
Supplier Device Package | D2PAK |
Base Part Number | NCV4274A |
NCV4274ADS50R4G Highlights
l 2.5, 3.3 V, 5.0 V, 8.5 V, ±2.0% output options
l 2.5, 3.3 V, 5.0 V, ±4.0% output options
l Low 150 A quiescent current at 1 mA load current
l 400 mA output current capability
l Fault protection
l +60 V peak transient voltage with respect to GND
−42 V reverse voltage
−Short Circuit
−Thermal overload
l Very low dropout boltage
l NCV prefix indicates suitability for automotive and other applications requiring controlled manufacturing and traceability
l AEC-Q100 qualified and PPAP capable
l Pb-free, environmentally friendly device
NCV4274ADS50R4G Block Diagram
This block diagram shows the internal structure and working logic of the NCV4274ADS50R4G. The input voltage passes through a Bandgap Reference to generate a stable reference, which is compared in the error amplifier with the output feedback. This controls the power transistor to regulate output voltage. Integrated protection modules—Thermal Shutdown, Current Limit, and Saturation Sense—ensure safe operation by disabling output under fault conditions. A load resistor simulates the output circuit. Together, these modules enable precise, stable, and protected voltage regulation.
NCV4274ADS50R4G Application Fields
1. Automotive-Grade Reliability for Harsh Environments
With AEC-Q100 qualification and a wide input voltage range (up to 45V), the NCV4274ADS50R4G is ideal for demanding automotive systems requiring long-term stability and protection. Its robust performance supports:
l Engine Control Units (ECUs)
l ADAS modules and infotainment systems
2. Ultra-Low Quiescent Current for Battery-Powered Devices
Designed for low-power systems, this regulator consumes minimal quiescent current, extending battery life in portable applications. It is widely used in:
l Battery-powered microcontroller platforms
l Remote sensors
l Handheld devices
3. Industrial-Grade Stability and EMI Immunity
Built to operate reliably in electrically noisy and rugged environments, the NCV4274ADS50R4G offers precise 5V regulation and integrated protections (thermal shutdown, current limiting), making it ideal for:
l Factory automation and industrial control modules
l Communication interfaces
l Sensor nodes in control systems
4. Clean Power Delivery in Embedded Systems
The device ensures low-ripple, fixed 5V output for sensitive digital components, making it a great fit for embedded power subsystems, such as:
l Telematics units
l GPS, wireless communication modules
l MCU or SoC-based boards requiring clean analog/digital separation
NCV4274ADS50R4G Package
FAQs
What type of voltage regulator is the NCV4274ADS50R4G?
The NCV4274ADS50R4G is a low-dropout (LDO) voltage regulator to provide a stable and precise output voltage with low input-to-output voltage difference.
Does the NCV4274ADS50R4G include any protection features?
Yes, it includes built-in protection such as thermal shutdown and current limit to prevent damage from overheating or overcurrent conditions.
How does the regulator maintain output voltage stability?
It uses a bandgap reference for a stable reference voltage and an error amplifier that compares the output voltage feedback to the reference, adjusting the power transistor accordingly to keep the output steady.
What are the typical operating temperatures for this device?
It is designed to operate reliably in automotive and industrial temperature ranges, typically from -40°C ~ 125°C or higher.
ANDESOURCE – Your Reliable Electronic Component Sourcing Partner
At ANDESOURCE, we streamline electronic component sourcing by delivering customized solutions tailored to your exact needs. Our team works closely with you to identify parts that align with your specific requirements. Backed by trusted partnerships with leading manufacturers, we offer high-quality components at competitive prices. Every item is rigorously tested for reliability, and our efficient logistics ensure timely delivery to keep your projects on track.
