Part Number: MC34063ADR2G

Manufacturer: onsemi

Description: IC REG BUCK BST ADJ 1.5A 8SOIC

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of MC34063ADR2G

Datasheet  MC34063ADR2G datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – DC DC Switching Regulators
Manufacturer ON Semiconductor
Packaging Tape & Reel (TR)
Part Status Active
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) 40V (Switch)
Current – Output 1.5A (Switch)
Frequency – Switching 100kHz
Synchronous Rectifier No
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154″, 3.90mm Width)
Supplier Device Package 8-SOIC


The MC34063ADR2G is a flexible monolithic control circuit that is used in a variety of DC-to-DC converter applications. It provides an efficient solution for both step-down and step-up voltage conversion operations because to its comprehensive feature set and capabilities. In this comprehensive overview, we will look at the MC34063ADR2G’s essential features as well as its potential applications.

Overview of MC34063ADR2G

The MC34063ADR2G is an integrated circuit from the MC34063A series. This series is intended to make the development of DC-to-DC converters easier by combining the necessary building pieces on a single chip. Here are some of the major characteristics that distinguish the MC34063ADR2G:

● Wide Input Voltage Range

The MC34063ADR2G has a wide input voltage range of 3.0 V to 40 V. Because of its adaptability, it is suited for a wide range of applications, ranging from low-voltage to high-voltage power supply.

● Low Standby Current

One of the series’ primary features is its low standby current, which adds to energy efficiency and increases the device’s longevity.

● Current Limiting

The MC34063ADR2G includes a current limiting feature, which ensures that the device and the linked circuitry are protected from excessive current flow, which is very important in demanding applications.

● High Current Output Switch

This IC is well-suited for applications demanding larger power outputs, as it has an output switch capable of handling currents of up to 1.5 A.

● Adjustable Output Voltage

The device has configurable output voltages, giving you the freedom to suit the voltage requirements of your application.

● Frequency Operation

The MC34063ADR2G provides frequency operating up to 100 kHz, allowing for switching frequency control to maximize performance in a variety of applications.

● Precision 2% Reference

The built-in 2% reference enables consistent and accurate voltage management, which is essential for precise voltage conversion jobs.

● Automotive and RoHS Compliance

If you have automotive or other particular requirements, you can select the NCV prefix version, which is AEC-Q100 rated and PPAP ready. Furthermore, all devices in this series are lead-free, halogen-free/BFR-free, and RoHS compliant, in accordance with modern environmental requirements.

Applications of MC34063ADR2G

Because of its versatility and vast feature set, the MC34063ADR2G can be used in a wide range of applications. Here are some common applications for this IC:

● Voltage Regulation

Use the MC34063ADR2G to regulate voltage in power supply and other electronic systems. You can adapt to diverse voltage requirements thanks to the changeable output voltage capability.

● LED Drivers

As LED technology continues to advance, LED drivers are in high demand. The MC34063ADR2G can serve as an efficient LED driver, delivering the necessary current to illuminate LEDs effectively.

● Battery-Powered Devices

Power conversion efficiency is critical for battery-powered applications. It is a fantastic choice for battery-powered systems due to its wide input voltage range, low standby current, and current limiting.

● Automotive Electronics

The NCV prefix version is tailored specifically for use in automotive applications, and as a result, it ensures that the product satisfies all of the stringent requirements set forth by the industry. It is appropriate for usage in a variety of electronic systems, including power supplies, lighting systems, and other electronic components.

● Solar Power Converters

The MC34063ADR2G can be used in solar power converters to efficiently step up or step down voltages in order to manage solar panel output and battery charging.

● Design Resources

Refer to application notes AN920A/D and AN954/D for a more in-depth understanding of how to design with the MC34063ADR2G. These resources offer useful insights for realizing the full potential of this flexible IC.

Frequently Asked Questions (FAQs) Related to the MC34063ADR2G and its applications:

What exactly is the MC34063ADR2G, and what is it used for?

The MC34063ADR2G is a DC-to-DC converter monolithic control circuit. It integrates multiple critical tasks into a single integrated circuit, including a reference, comparator, oscillator, current limiting, and high current output switch. It is used to efficiently step up or step down voltage levels.

What is the MC34063ADR2G’s input voltage range?

The MC34063ADR2G has a wide input voltage range of 3.0 V to 40 V, making it appropriate for a wide range of applications.

How can the MC34063ADR2G contribute to energy efficiency?

The MC34063ADR2G has a low standby current, which reduces power consumption during standby or idle periods, hence helping to energy efficiency and device longevity.

What is the current limitation, and why is it significant?

A built-in safety mechanism known as current limiting is included with the MC34063ADR2G. This feature prevents an excessive amount of current from flowing through the device. This protects both the integrated circuit (IC) and the circuitry that is attached to it against harm that could be caused by circumstances involving excessive current.

Is it possible to change the output voltage of the MC34063ADR2G?

You are able to modify the MC34063ADR2G’s output voltage, so you can ensure that it satisfies the specific voltage requirements of your application.

What are some common MC34063ADR2G applications?

Voltage regulation, LED drivers, battery-powered devices, automobile electronics, and solar power converters are all common applications. It is utilized in situations when efficient DC-to-DC conversion is required.

Is there a version of the MC34063ADR2G designed specifically for automotive applications?

To answer your question, the versions with the NCV prefix were developed specifically for automotive use. As a result of their AEC-Q100 certification and PPAP capability, they are able to fulfill the demanding specifications of the automobile sector.

Is the MC34063ADR2G in accordance with environmental regulations?

Yes, the MC34063ADR2G and other devices in the series are lead-free, halogen-free/BFR-free, and RoHS compliant, aligning with modern environmental standards.

In Conclusion

The MC34063ADR2G stands as a remarkably versatile and efficient monolithic control circuit, offering an extensive array of capabilities for DC-to-DC converters. With its broad input voltage range, minimal standby current, effective current limiting, and the flexibility to adjust output voltage, it emerges as the quintessential choice for a wide spectrum of applications.  Whether you’re in the realm of power supply design, crafting LED drivers, or seeking a robust solution for automotive electronics, the MC34063ADR2G delivers a comprehensive solution.

Unleash its full potential to elevate your designs and ensure optimal performance with this exceptional integrated circuit. To delve deeper into its capabilities and secure your supply, we invite you to connect with us at ICRFQ, a leading electronic component distributor in China. We are committed to providing you with top-quality products at a competitive price point.

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