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78M12
+BOMIC REG LINEAR 12V 1A TO252
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ManufacturerUMW
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Mfr. Part #78M12
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Datasheet 78M12 DataSheet
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In Stock27632
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Specifications
| Attribute | Value |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 12V |
| Voltage Dropout (Max) | 2V @ 350mA |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 6 mA |
| PSRR | 80dB (120Hz) |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -20°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252 (DPAK) |
Overview
Description
Key features of the 78M12 include:
1. Output Voltage: Fixed at 12 volts.
2. Current Output: Capable of supplying up to 500 mA.
3. Input Voltage Requirement: Requires an input voltage typically 2-3 volts higher than the output voltage to function properly.
4. Thermal Protection: Built-in protection against overheating, which helps to prevent damage in case of excessive load conditions.
5. Short-Circuit Protection: Safeguards the IC and connected components against current overloads.
6. Easy Implementation: Minimal external components are required, usually just a few capacitors for stability.
The 78M12 is widely used in power supply circuits for electronic devices, ensuring a constant 12V output from a higher voltage DC input.
Equivalent
Features
1. Output Voltage: Delivers a constant output of 12V.
2. Input Voltage Range: Typically requires an input voltage of around 14.5V to 35V.
3. Output Current: Can supply up to 1.5A of output current.
4. Thermal Overload Protection: Protects the regulator from overheating.
5. Short-Circuit Protection: Safeguards against output short circuits by limiting the current.
6. Safe Operating Area Protection: Ensures the device operates within its safe limits.
7. Package Options: Commonly available in TO-220, TO-252, and other package types.
8. Low Quiescent Current: Minimizes energy consumption when the load is light.
9. Low Dropout Voltage: Provides good regulation even when the difference between input and output voltage is small.
10. Versatility: Suitable for a variety of applications, including power supply circuits, battery chargers, and more.
These features make the 78M12 a reliable choice for providing a regulated 12V output in electronic circuits.
Pinout
1. Pin 1 (Input): This is the input pin where an unregulated DC voltage is supplied. The voltage should be higher than 12V to ensure proper regulation.
2. Pin 2 (Ground): This pin is connected to the common ground of both the input and the output.
3. Pin 3 (Output): This pin provides a regulated +12V DC output. The output remains stable as long as the input voltage is within the specified range and the current draw is within the device's limits.
The 78M12 is used for applications requiring a stable 12V power supply, offering protection features like thermal shutdown and short-circuit prevention. Its ease of use and reliability make it a popular choice for various electronic projects and devices.
Manufacturer
1. Texas Instruments (TI): TI is a global semiconductor company that designs and manufactures a wide array of analog and embedded processing chips. They are known for their innovation and development of electronic components used in a variety of applications, from consumer electronics to industrial machinery.
2. STMicroelectronics: This is a multinational electronics and semiconductor manufacturer. They produce integrated devices for various sectors, including automotive, industrial, personal electronics, and communications equipment.
3. onsemi (ON Semiconductor): Onsemi is a leading supplier of semiconductor-based solutions, offering a comprehensive portfolio of energy-efficient power and signal management, logic, standard, and custom devices. They cater to automotive, communications, computing, consumer, industrial, LED lighting, medical, military, and aerospace applications.
All these companies are known for their reliability and innovation in the semiconductor industry, producing a wide range of components, including voltage regulators like the 78M12.
Application
1. Power Supply Circuits: Offering a fixed 12V output for powering microcontrollers, sensors, and other electronic components.
2. Consumer Electronics: Used in devices like TVs, radios, and other gadgets requiring a regulated 12V supply.
3. Automotive Electronics: Employed in car audio systems and other accessories needing stable voltage.
4. Industrial Equipment: Used in control systems and instrumentation requiring reliable voltage regulation.
5. Communication Devices: Provides power for networking equipment and communication gadgets.
Its reliability and ease of use make it popular in both hobbyist and professional projects.