MC78LC30NTRG

MC78LC30NTRG is a fixed, positive 3.0-volt voltage regulator from the MC78LC family (manufactured by Motorola/ON Semiconductor). It provides a stable 3.0 V output from a higher DC input to power small logic circuits and microcontrollers.
Key points:
- Three-terminal device with input, output, and ground.
- Typical load current in the LC series is modest (on the order of tens to about 100 mA, depending on package; check the exact variant).
- Built-in protection: current limiting and thermal shutdown to guard against faults.
- Requires proper decoupling: input and output capacitors close to the pins for stability and good transient response.
- NTRG suffix denotes packaging (Tape & Reel) and RoHS-compliant version.
Use when you need a simple, low-current 3.0 V rail from a higher voltage source. For exact current rating, dropout, and package details, consult the specific datasheet for your NTRG variant.

MC78LC30NTRG is a 3.0 V fixed regulator (~100 mA) in TO-92. Common equivalents: LM78L30 (TI/National), KA78L30 (Fairchild/On Semiconductor), L78L30 (ST). Other vendors may offer LD78L30-type parts. Always cross-check pinout and package, as TO-92 footprints can differ.

Here are the key features of MC78LC30NTRG:
- Fixed positive output: +3.0 V
- Output current: up to 100 mA
- Input voltage range: up to about 15 V
- Low dropout: ~0.5 V at 100 mA
- Quiescent current: ~4–5 mA
- Protections: internal current limit and thermal/short-circuit protection
- Stability: requires input and output capacitors (typical 0.33 µF input, 0.1 µF output)
- Temperature range: -40°C to +125°C
- Packaging: RoHS-compliant, Tape & Reel (NTRG) format

Three pins. Function: Fixed positive voltage regulator providing +3.0 V output (input, ground, output; TO-220 style, left-to-right when facing the front).

- Manufacturer: ON Semiconductor (ON Semiconductor Corporation).
- What kind of company: An American multinational semiconductor designer and manufacturer, producing analog, power management, and other ICs and discrete components for electronics.

MC78LC30NTRG is a fixed 3.0 V low-current voltage regulator. Typical applications:
- Battery-powered electronics needing a stable 3 V rail
- Powering microcontrollers (8/16-bit), memory, and peripheral ICs
- Supplying sensors (MEMS, temperature, accelerometers), op-amps, and ADC/DAC front-ends
- Local regulator on embedded systems, development boards, and consumer gadgets
- Portable devices such as remote controls, wearables, toys, and calculators
- Any compact, low-cost design requiring a fixed 3 V supply from a higher input
Note: follow the datasheet for input voltage range, load current, and dropout limits.

TO-92 plastic, through-hole package. The NTRG suffix indicates RoHS-compliant, tape-and-reel packaging.