MC34063ABD

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MC34063ABD

+BOM

IC REG BUCK BST ADJ 1.5A 8SO

365 1일 품질 보증

7*24 영업 시간 서비스 보증

90-판매 후 1일 보증

정품 보증

사양

속성 가치
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 -40°C ~ 85°C (TA)
Mounting Type Surface Mount

개요

Description

The MC34063ABD is an integrated circuit designed for DC-DC conversion applications. It is a versatile and cost-effective solution for creating step-up, step-down, and inverting power conversion. This IC is widely used in power supply designs due to its flexibility and simplicity. It operates over a wide input voltage range of 3V to 40V, making it suitable for a variety of battery-powered and industrial applications.
The MC34063ABD is equipped with a temperature-compensated reference, voltage comparator, controlled duty cycle oscillator, driver, and high-current output switch. It can deliver output currents up to 1.5A with appropriate external components. The switching frequency of the circuit can be set using external resistors and capacitors, allowing designers to optimize their design for efficiency and space constraints.
Additionally, the MC34063ABD includes built-in protection features such as current limiting and thermal shutdown, enhancing the reliability of the power supply design. Its small form factor and minimal external component requirements make it ideal for compact electronic devices.

Equivalent

Equivalent products to the MC34063ABD chip include:
1. MC34063A - A similar version with slight variations in package or specifications.
2. MC33063A - Generally interchangeable with similar performance.
3. NTE960 - An alternative with comparable features.
4. SG3524 - A slightly different design but can be used in similar applications.
5. LM2575 - A more modern alternative with integrated features, though not a direct pin-to-pin equivalent.
Always consult datasheets to ensure compatibility in specific applications.

Features

The MC34063ABD is a versatile DC-DC converter IC commonly used for step-up, step-down, and inverting applications. It features an internal switch for driving external transistors, which allows for the regulation of output voltage across a range of configurations. Key features include an operating supply voltage range of 3V to 40V, a switching frequency of up to 100 kHz, and an output current capability of up to 1.5A. The IC also includes an internal temperature compensation function, a current limiting feature, and a low standby current, enhancing its efficiency and reliability. The MC34063ABD is valued for its robustness and flexibility, making it suitable for applications in consumer electronics, telecommunications, and automotive circuits. Its ease of use and low external component count make it a popular choice for engineers designing power supply solutions.

Pinout

The MC34063ABD is a DC-DC converter integrated circuit with 8 pins. It is designed for a variety of applications, including step-up, step-down, and inverting voltage conversions. The pin functions are as follows:
1. Switch Collector (SWC): Collector of the internal switching transistor.
2. Switch Emitter (SWE): Emitter of the internal switching transistor, typically connected to the inductor.
3. Timing Capacitor (CT): Sets the oscillator frequency with an external capacitor.
4. Ground (GND): Ground reference for the circuit.
5. Comparator Inverting Input (IN-): Inverting input of the internal comparator, used for voltage regulation.
6. VCC: Supply voltage for the IC.
7. IPK Sense (IPK): Current limit sense pin to set peak current limit with a resistor.
8. Driver Collector (DRC): Drives the base of an external transistor if used, or left open if not.
The MC34063ABD is versatile and commonly used due to its ease of use and low external component count.

Manufacturer

The manufacturer of the MC34063ABD is STMicroelectronics. STMicroelectronics is a multinational corporation that designs, develops, manufactures, and markets a wide range of semiconductor products. Founded in 1987, the company is one of the world’s largest semiconductor companies, known for its innovation and diverse product portfolio, which includes microcontrollers, sensors, analog devices, power management components, and more. STMicroelectronics serves various markets, including automotive, industrial, personal electronics, communications equipment, and computer peripherals. The company is headquartered in Geneva, Switzerland, and operates globally with manufacturing facilities, research and development centers, and sales offices across different regions.

Application

The MC34063ABD is a versatile DC-DC converter IC used in various power management applications. Its application areas include step-up (boost) converters, step-down (buck) converters, and inverting power supplies. It is commonly employed in battery-powered devices, consumer electronics, and automotive systems due to its ability to efficiently manage voltage levels and provide stable power. Additionally, the MC34063ABD is used in LED drivers and portable charging devices. Its flexibility, cost-effectiveness, and ease of use make it suitable for a wide range of low-to-medium power applications that require simple, reliable voltage regulation.

Package

The MC34063ABD is available in a SOIC-8 (Small Outline Integrated Circuit) package. It is a surface-mounted device with 8 pins, commonly used for DC-DC converter applications.

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