78M05

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78M05

IC REG LINEAR 5V 1A TO252

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  • Ông. Phần #78M05
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  • Bảng dữ liệu 78M05 DataSheet
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Thông số kỹ thuật

Series 78Mxx
Part Status Active
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 35V
Voltage - Output (Min/Fixed) 5V
Voltage Dropout (Max) 2V @ 500mA
Current - Output 1A
Current - Quiescent (Iq) 6 mA
PSRR 80dB (120Hz)
Protection Features Over Temperature, Short Circuit
Operating Temperature -20°C ~ 85°C
Mounting Type Surface Mount
Package / Case TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package TO-252 (DPAK)

Tổng quan

Description

The 78M05 is a voltage regulator integrated circuit (IC) designed to provide a stable output voltage of 5V. It belongs to the 78xx series of linear voltage regulators, which are widely used in electronic circuits to ensure a consistent power supply. The "M" in 78M05 indicates it is a low dropout regulator (LDO), capable of operating effectively with a lower input-output voltage difference, making it suitable for battery-powered applications.
Key features include:
- Input Voltage Range: Typically from 7V to 25V.
- Output Current: Can supply up to 500mA.
- Thermal Overload Protection: Prevents damage from overheating.
- Short Circuit Protection: Safeguards the circuit during overloads.
The 78M05 is popular in consumer electronics, microcontroller projects, and other applications requiring a reliable and efficient 5V power supply due to its ease of use and minimal external components required. It usually requires only a couple of capacitors for stability, making it a common choice for hobbyists and professionals alike.

Features

The 78M05 is a fixed voltage regulator that provides a stable 5V output with a maximum output current of 500mA. Key features include:
1. Input Voltage Range: Typically accepts input voltages from 7V to 25V.
2. Thermal Protection: Equipped with thermal overload protection to prevent damage from overheating.
3. Short-Circuit Protection: Incorporates current limiting to protect against short circuits.
4. Low Dropout Voltage: Ensures efficient operation, especially when input voltage is close to the output voltage.
5. Easy Implementation: Requires minimal external components, often just input and output capacitors for stability.
6. Compact Package: Available in various packages, including TO-220 and TO-263, suitable for space-constrained designs.
7. Wide Application: Commonly used in power supply circuits for microcontrollers, sensors, and other electronic devices.
Overall, the 78M05 is a reliable choice for applications requiring a consistent 5V power supply.

Package

The 78M05 is typically available in various package types, including TO-220, TO-263, and SOT-223. These packages are designed for efficient heat dissipation and ease of integration into electronic circuits, providing a compact and reliable voltage regulation solution.

Pinout

The 78M05 is a low-dropout linear voltage regulator that provides a fixed output voltage of 5V. It typically comes in a TO-220 or TO-263 package configuration with a pin count of 3.
Pin Functions:
1. Input (Vin): This pin receives the input voltage (up to 35V), which is regulated down to 5V.
2. Ground (GND): This pin is connected to the system ground and serves as the reference point for the regulation.
3. Output (Vout): This pin provides the regulated output voltage of 5V.
The 78M05 is designed for low current applications, typically supplying up to 100mA while maintaining good line and load regulation.

Manufacturer

The 78M05 is a voltage regulator manufactured by multiple companies, with the most notable being Texas Instruments, ON Semiconductor, and STMicroelectronics. These companies are well-established in the semiconductor industry, specializing in designing and producing a wide range of electronic components, including integrated circuits, power management solutions, and other semiconductor products. They serve various sectors, including consumer electronics, automotive, industrial, and telecommunications, focusing on innovation and reliability in their offerings.

Application

The 78M05 is a voltage regulator commonly used in various applications, including power supply circuits, consumer electronics, LED drivers, and battery-operated devices. It provides a stable 5V output from higher voltage sources, ensuring consistent performance in microcontroller circuits, sensors, and communication equipment. Its simplicity and reliability make it suitable for both hobbyist projects and commercial products.

Equivalent

The 78M05 voltage regulator chip has several equivalent products, including the 7805, LM7805, LM317 (with external resistors for adjustment), and L78M05. These can be used as alternatives, depending on specific requirements like output current, package type, and thermal performance. Always check datasheets for compatibility in your application.

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