Specifications
| Attribute | Value |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| Function | Step-Up, Step-Down |
| OutputConfiguration | Positive or Negative |
| Topology | Buck, Boost |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 7.5V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 5.05V |
| Voltage-Output(Max) | 40V (Switch) |
| Current-Output | 5.5A (Switch) |
| Frequency-Switching | 72kHz |
| SynchronousRectifier | No |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Through Hole |
| Package/Case | TO-220-5 |
Overview
Description
The MC34167T is a versatile high-efficiency power switching regulator designed by ON Semiconductor. It is typically used in various power supply applications due to its ability to deliver output currents up to 5A with a wide input voltage range of 5V to 40V. The device is capable of step-down (buck), step-up (boost), and voltage-inversion configurations, making it suitable for multiple DC-DC conversion tasks.
Key features of the MC34167T include internal thermal shutdown, cycle-by-cycle current limiting, and a fixed-frequency oscillator, which contribute to its reliability and efficiency. The regulator also integrates a 72 kHz oscillator, reducing external components and simplifying circuit design. Its robust design ensures stable operation under varying load conditions, making it ideal for industrial, automotive, and consumer electronics applications.
The MC34167T comes in a TO-220 package, providing efficient heat dissipation. Its adaptability and robustness make it a popular choice for applications requiring flexible power management solutions.
Key features of the MC34167T include internal thermal shutdown, cycle-by-cycle current limiting, and a fixed-frequency oscillator, which contribute to its reliability and efficiency. The regulator also integrates a 72 kHz oscillator, reducing external components and simplifying circuit design. Its robust design ensures stable operation under varying load conditions, making it ideal for industrial, automotive, and consumer electronics applications.
The MC34167T comes in a TO-220 package, providing efficient heat dissipation. Its adaptability and robustness make it a popular choice for applications requiring flexible power management solutions.
Equivalent
The MC34167T is a switching regulator IC. Equivalent products might include similar voltage regulator ICs like the LM2576 from Texas Instruments, the LM2575 from ON Semiconductor, or the L4970A from STMicroelectronics. These alternatives offer similar functionalities such as step-down voltage regulation and comparable input/output voltage ranges. Always verify specific parameters like voltage, current, and package compatibility when selecting an equivalent.
Features
The MC34167T is a versatile and efficient monolithic power switching regulator. Key features include:
1. Wide Input Voltage Range: Operates from 5V to 40V, accommodating various power supply conditions.
2. High Switching Frequency: Typically 72 kHz, allowing for smaller external components and efficient regulation.
3. Output Voltage: Adjustable output voltage via external resistors, supporting a range of applications.
4. High Output Current Capability: Capable of delivering up to 5A of output current, suitable for demanding applications.
5. Efficient Power Conversion: Designed for high efficiency, minimizing power loss and heat generation.
6. Internal Thermal Shutdown: Protects the device from overheating, enhancing reliability and safety.
7. Cycle-by-Cycle Current Limiting: Prevents excessive current through the device, protecting against short circuits and overload conditions.
8. Versatile Applications: Suitable for step-up, step-down, and inverting configurations.
9. On-chip Switching Transistor: Simplifies design and reduces the overall component count.
These features make the MC34167T ideal for use in a variety of applications, including automotive, industrial, and consumer electronics.
1. Wide Input Voltage Range: Operates from 5V to 40V, accommodating various power supply conditions.
2. High Switching Frequency: Typically 72 kHz, allowing for smaller external components and efficient regulation.
3. Output Voltage: Adjustable output voltage via external resistors, supporting a range of applications.
4. High Output Current Capability: Capable of delivering up to 5A of output current, suitable for demanding applications.
5. Efficient Power Conversion: Designed for high efficiency, minimizing power loss and heat generation.
6. Internal Thermal Shutdown: Protects the device from overheating, enhancing reliability and safety.
7. Cycle-by-Cycle Current Limiting: Prevents excessive current through the device, protecting against short circuits and overload conditions.
8. Versatile Applications: Suitable for step-up, step-down, and inverting configurations.
9. On-chip Switching Transistor: Simplifies design and reduces the overall component count.
These features make the MC34167T ideal for use in a variety of applications, including automotive, industrial, and consumer electronics.
Pinout
The MC34167T is a monolithic power switching regulator primarily used for step-down (buck) applications. It is typically in a TO-220 package with a total of 5 pins. Here is a brief description of its pin functions:
1. Pin 1 (Vin): This is the input voltage pin where the supply voltage is applied.
2. Pin 2 (SWC): The switch collector pin, which connects to the external inductor and diode to form the buck converter.
3. Pin 3 (GND): The ground pin, serving as the reference point for the circuit.
4. Pin 4 (Vcc): The internal bias supply voltage pin that powers the internal circuitry.
5. Pin 5 (Vout): This is the output pin where the regulated voltage is obtained.
The MC34167T operates efficiently at high frequency, reducing the size of external components, and is suitable for a variety of applications including battery chargers, and low voltage distributed power supplies.
1. Pin 1 (Vin): This is the input voltage pin where the supply voltage is applied.
2. Pin 2 (SWC): The switch collector pin, which connects to the external inductor and diode to form the buck converter.
3. Pin 3 (GND): The ground pin, serving as the reference point for the circuit.
4. Pin 4 (Vcc): The internal bias supply voltage pin that powers the internal circuitry.
5. Pin 5 (Vout): This is the output pin where the regulated voltage is obtained.
The MC34167T operates efficiently at high frequency, reducing the size of external components, and is suitable for a variety of applications including battery chargers, and low voltage distributed power supplies.
Manufacturer
The MC34167T is manufactured by ON Semiconductor. ON Semiconductor is an American company that specializes in the design, development, and sale of semiconductor components. It provides a wide range of products, including power management devices, sensors, logic components, discrete components, and custom devices for various applications such as automotive, communication, computing, consumer electronics, industrial, medical, and aerospace/defense. The company is known for offering solutions that improve energy efficiency and performance in electronics.
Application
The MC34167T is a versatile monolithic power switching regulator designed for high-efficiency applications. It is commonly used in DC-DC converter circuits and power supply designs. Key application areas include:
1. Automotive Electronics: Used in voltage regulation for vehicle electronic systems.
2. Industrial Control Systems: Provides efficient power management in various industrial devices.
3. Telecommunications: Supports power regulation in network and communication equipment.
4. Consumer Electronics: Powers devices like televisions and audio equipment.
5. Battery-Powered Devices: Used in battery chargers and portable device power supplies.
Its ability to handle a wide input voltage range and deliver high output current makes it suitable for various applications requiring efficient power conversion.
1. Automotive Electronics: Used in voltage regulation for vehicle electronic systems.
2. Industrial Control Systems: Provides efficient power management in various industrial devices.
3. Telecommunications: Supports power regulation in network and communication equipment.
4. Consumer Electronics: Powers devices like televisions and audio equipment.
5. Battery-Powered Devices: Used in battery chargers and portable device power supplies.
Its ability to handle a wide input voltage range and deliver high output current makes it suitable for various applications requiring efficient power conversion.
Package
The MC34167T is a monolithic power switch designed for DC-DC converter applications. It is typically encapsulated in a TO-220 package, which is a standard through-hole package used for power components due to its ability to accommodate a heat sink.
