Regulator

Key Features

• Stable Output: Delivers a constant voltage regardless of fluctuations in the input source or load.
• Internal Thermal Protection: Built-in “thermal shutdown” feature automatically turns off the device if it gets too hot.
• Short-Circuit Protection: Safeguards both the regulator and your circuit in the event of a wiring error.
• Ease of Use: Standard 3-pin configuration (Input, Ground, Output) makes integration into any PCB or breadboard simple.
• Clean Power: Significantly reduces “ripple” and electrical noise from unregulated power adapters.

Technical Specifications 

Fixed Output Voltages                 3.3V, 5V, 6V, 9V, 12V, 15V (78xx Series)

Adjustable Range                          1.25V to 37V (LM317 / LM337 Series)

Max Input Voltage                        Up to 35V DC (Depending on model)

Output Current                              100mA (78Lxx), 1A (TO-220), 1.5A (LM317)

Dropout Voltage                           Typically 2.0V (Standard) or <0.5V (LDO types)

Package Types                               TO-220 (Heatsinkable), TO-92 (Mini), SOT-223 (SMD)

Operating Temp                            0°C to +125°C

Common Applications

• Microcontroller Power: Providing a clean 5V or 3.3V supply for Arduino, ESP32, and Raspberry Pi.
• Analog Circuits: Powering Op-Amps and sensors that require very low-noise voltage to function accurately.
• Battery-Powered Devices: Regulating varying battery voltages down to a steady level as the battery discharges.
• Laboratory Power Supplies: Building adjustable bench power supplies for testing prototypes.
• Automotive Electronics: Stepping down 12V-14V vehicle power to safe levels for interior gadgets and LEDs.