onsemi Voltage Regulator 18V 4-Pin SOT-223 Package Low Dropout Linear Regulator NCP1117LPST33T3G

onsemi NCP1117LPST33T3G is a low dropout (LDO) linear Voltage Regulator designed to deliver a positive fixed output voltage with an output current exceeding 1 ampere. The device is housed in a compact 4-pin SOT-223 surface mount package measuring 6.7mm in length, 3.7mm in width, and 1.69mm in height, making it suitable for space-sensitive electronic assemblies.

Operating up to a maximum input voltage of 18 volts and withstanding a minimum of -0.3 volts, this regulator ensures stable voltage output with a maximum dropout voltage of 1.2V at 800mA load under varying temperature conditions. With a quiescent current of 700 microamps, it achieves efficient energy use in battery-powered and heat-sensitive applications.

The NCP1117LPST33T3G incorporates advanced protection features including current limiting and thermal shutdown to maintain device integrity and prevent damage from overload or thermal stress. It is compliant with the AEC-Q100 automotive standard, making it highly reliable for automotive and industrial environments.

This regulator is ideal for various applications such as consumer electronics, industrial equipment, switching power supply post regulation, active SCSI termination for 2.85V versions, hard drive controllers, and battery charging circuits. Its adjustable voltage option allows programming output voltages from 1.25V up to 18.8V to suit specific circuit requirements.

As a linear regulator, the device provides a low noise and fast transient response, complementing power supply designs requiring low voltage differentials and high power supply rejection ratios (PSRR). Its surface mount format supports automated PCB assembly, enhancing production efficiency.

Maximum input voltage: 18V with negative voltage tolerance to -0.3V. Pin count: 4 pins in SOT-223 package. Low quiescent current of 700μA for power-sensitive applications. Compliance with automotive standard AEC-Q100 for durability.

Thermal shutdown and current limiting provide robust protection. Dropout voltage max 1.2V at 800mA ensuring efficient regulation. Package dimensions: 6.7mm x 3.7mm x 1.69mm (LxWxH). Suitable for consumer, industrial, and automotive power management solutions.

Fixed or adjustable voltage output options ranging from 1.25V to 18.8V. Explore more voltage regulation solutions within our Electronics & Electricals category at EnvMart for enhanced power management and reliable circuit performance.