MC34063ECD

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MC34063ECD

+Nomenclature

IC REG BUCK BST ADJ 1.5A 8SO

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Spécifications

Attribut Valeur
Package / Case Tube
Part Status Obsolete
Function Step-Up, Step-Down
Output Configuration Positive or Negative
Topology Buck, Boost
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 3V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 1.25V
Voltage - Output (Max) 38V
Current - Output 1.5A (Switch)
Frequency - Switching 33kHz
Synchronous Rectifier No
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount

Présentation

Description

The MC34063ECD is a versatile DC-DC converter integrated circuit designed for step-up, step-down, and inverting applications. It is commonly used in power supply designs due to its efficiency and flexibility. The IC operates over a wide input voltage range, typically from 3V to 40V, making it suitable for various applications, including automotive and portable electronics.
Key features of the MC34063ECD include an internal temperature-compensated reference, a comparator, a controlled duty cycle oscillator, a driver, and a high-current output switch. It can deliver output currents up to 1.5A with proper external components. The MC34063ECD's switching frequency can be adjusted with an external timing capacitor, allowing customization for specific requirements.
The device also offers protection features such as current limiting and thermal shutdown, enhancing reliability and safety. Its ease of use and flexibility make the MC34063ECD a popular choice for designers looking to implement cost-effective and efficient power conversion solutions.

Equivalent

The MC34063ECD is a DC-DC converter IC commonly used for step-up, step-down, and inverting applications. Some equivalent products include:
1. LM2575 - A step-down (buck) voltage regulator.
2. MC33063 - Similar to MC34063 but with broader temperature range.
3. XL6009 - A boost converter with higher efficiency.
4. NCP3063 - Offers similar functionality with improved features like higher output current.
5. SG3525 - Though primarily a PWM controller, it’s used in similar applications with additional circuitry.
These alternatives may vary in specifications and suitability based on the application.

Features

The MC34063ECD is a versatile DC-DC converter IC commonly used for step-up, step-down, and inverting applications. Key features include:
1. Wide Input Voltage Range: Operates from 3V to 40V, suitable for various power supply conditions.
2. Output Switching Frequency: Adjustable frequency up to 100 kHz, allowing for flexibility in design.
3. Output Current Capability: Can deliver up to 1.5A output current, making it suitable for moderate power applications.
4. Integrated Features: Includes a temperature-compensated reference, an internal oscillator, a current limiting circuit, and a driver for an external NPN switch.
5. Efficient Design: Provides a simple means to achieve efficient voltage conversion with minimal external components.
6. Low Standby Current: Offers low quiescent current, improving efficiency especially in battery-powered applications.
7. Cost-Effective: Provides a budget-friendly solution for numerous basic power management tasks.
These features make the MC34063ECD an excellent choice for a wide range of power supply applications, offering a balance between performance and cost.

Pinout

The MC34063ECD is a DC-DC converter IC used for step-up, step-down, or voltage-inverting applications. It typically comes in an 8-pin dual in-line package (DIP) or SOIC package. Here's a brief overview of its pin functions:
1. Pin 1 - Switch Collector: The collector of the internal switch transistor.
2. Pin 2 - Switch Emitter: The emitter of the internal switch transistor; used for the output rectification stage.
3. Pin 3 - Timing Capacitor: Connect a capacitor to set the oscillator frequency.
4. Pin 4 - Ground: The ground pin provides the return path for the IC.
5. Pin 5 - Comparator Inverting Input: The inverting input to the internal comparator.
6. Pin 6 - Voltage Reference Output: Provides a 1.25V reference voltage for regulation.
7. Pin 7 - VCC: The power supply input for the device.
8. Pin 8 - Ipk Sense: Current sense input for limiting the peak current through the switching transistor.
These pins support the IC’s capability to function in various converter topologies with minimal external components.

Manufacturer

The MC34063ECD is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas. It is known for designing and manufacturing semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company’s products are used in a wide array of applications, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI is one of the largest semiconductor companies in the world, and it focuses on developing analog chips and embedded processors, producing innovative solutions to help customers solve their design challenges.

Application

The MC34063ECD is a versatile DC-DC converter IC used in various applications. Its primary applications include step-up (boost) converters, step-down (buck) converters, and voltage inverting configurations. It is commonly used in power supply circuits for electronic devices, battery-powered equipment, and automotive systems. Additionally, it's suitable for generating multiple output voltages from a single input, making it useful in complex power management systems. The IC is valued for its cost-effectiveness, ease of use, and ability to operate over a wide range of input voltages, making it a popular choice for educational purposes and in DIY electronics projects.

Package

The MC34063ECD is typically available in a SOIC-8 (Small Outline Integrated Circuit) package type. This package is compact, making it suitable for surface-mount technology applications.

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