Texas Instruments

LM1117T-3.3/NOPB  

Linear & Switching Voltage Regulators

LM1117T-3.3/NOPB Description

The LM1117T-3.3/NOPB from Texas Instruments is a fixed-output, low-dropout (LDO) linear voltage regulator designed to deliver a stable 3.3V output with a maximum current of 800mA. It operates over a wide input voltage range (up to 15V) and features a low dropout voltage of 1.2V at full load, making it highly efficient for applications with tight voltage margins. The device is housed in a TO-220-3 package, suitable for through-hole mounting, and complies with RoHS3 and REACH environmental standards. With an operating temperature range of 0°C to 125°C, it is robust for industrial and commercial applications.

LM1117T-3.3/NOPB Features

• Fixed 3.3V Output: Ensures precise voltage regulation without external resistors.
• High Current Capability: Delivers up to 800mA with over-current and over-temperature protection for enhanced reliability.
• Low Dropout Voltage: 1.2V @ 800mA minimizes power dissipation, improving efficiency.
• Low Quiescent Current: 5 mA typical, reducing standby power consumption.
• Excellent PSRR: 75dB at 120Hz ensures superior noise rejection, ideal for sensitive analog/digital circuits.
• Wide Input Range: Supports up to 15V, accommodating various power sources.
• Robust Packaging: TO-220-3 offers mechanical durability and efficient heat dissipation.

LM1117T-3.3/NOPB Applications

• Embedded Systems: Powering microcontrollers (e.g., Arduino, Raspberry Pi) and sensors.
• Industrial Electronics: Voltage regulation for PLCs, motor drivers, and control systems.
• Consumer Electronics: Used in set-top boxes, routers, and audio/video equipment.
• Automotive Modules: Suitable for infotainment and telematics systems (within operating limits).
• Battery-Powered Devices: Efficiently regulates voltage in portable equipment due to low dropout and quiescent current.

Conclusion of LM1117T-3.3/NOPB

The LM1117T-3.3/NOPB stands out as a reliable, high-performance LDO regulator, combining low dropout, high PSRR, and robust protection features. Its 800mA output, wide input range, and industrial-grade temperature tolerance make it a versatile choice for demanding applications. Compared to similar models, its TO-220 package and TI's quality assurance ensure long-term durability, while its fixed 3.3V output simplifies design integration. Ideal for engineers seeking a balance of efficiency, precision, and cost-effectiveness in power management solutions.

LM1117T-3.3/NOPB Documents

Download datasheets and manufacturer documentation for LM1117T-3.3/NOPB

PCN Assembly/Origin :

LB300 18/Jul/2017      

Datasheets :

LM1117-N, 1117I Series      

Design Resources :

Cooling Requirements for Linear Voltage Regulator