Texas Instruments

LM2936MX-3.3  

Linear & Switching Voltage Regulators

LM2936MX-3.3 Description

The LM2936MX-3.3 is a fixed-output, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a stable 3.3V output with a maximum current of 50mA. It operates over a wide input voltage range of up to 40V, making it suitable for automotive, industrial, and battery-powered applications where high input voltage variations are common. The device features an ultra-low quiescent current of 15 µA, enhancing efficiency in power-sensitive designs. With a dropout voltage of just 0.4V at 50mA, it ensures reliable performance even when the input voltage approaches the output level.

LM2936MX-3.3 Features

• Wide Input Range (Up to 40V): Ideal for harsh environments with fluctuating power sources.
• Low Dropout (0.4V @ 50mA): Maintains regulation with minimal headroom.
• Ultra-Low Quiescent Current (15 µA): Optimized for battery-operated and always-on systems.
• High PSRR (60dB @ 120Hz): Excellent noise rejection for sensitive analog/digital circuits.
• Robust Protection: Includes over-temperature, reverse polarity, and short-circuit safeguards.
• Surface-Mount Package (8-SOIC): Compact and suitable for automated assembly.
• REACH Unaffected & MSL1: Compliant with environmental standards and moisture-resistant.

LM2936MX-3.3 Applications

• Automotive Systems: Powering sensors, infotainment, and ECUs due to its high input tolerance.
• Industrial Controls: Reliable voltage regulation for PLCs, instrumentation, and actuators.
• Battery-Powered Devices: Extends runtime in IoT nodes, wearables, and portable electronics.
• Embedded Systems: Provides clean power to microcontrollers, FPGAs, and communication modules.
• Backup Power Supplies: Ensures stable output in UPS and energy-harvesting applications.

Conclusion of LM2936MX-3.3

The LM2936MX-3.3 stands out for its high input voltage tolerance, low dropout, and ultra-low quiescent current, making it a superior choice for demanding applications. While now obsolete, its robust protection features and efficiency remain valuable for legacy designs or replacements. Engineers seeking a reliable, low-power LDO for automotive or industrial systems will find this regulator exceptionally well-suited. For new designs, consider TI’s modern alternatives with similar or enhanced specifications.

LM2936MX-3.3 Documents

Download datasheets and manufacturer documentation for LM2936MX-3.3

Datasheets :

LM2936      

HTML Datasheet :

LM2936