Allicdata Part #: | 497-4280-5-ND |
Manufacturer Part#: |
MC34063ECN |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | STMicroelectronics |
Short Description: | IC REG BCK BST INV ADJ 1.5A 8DIP |
More Detail: | Buck, Boost Switching Regulator IC Positive or Neg... |
DataSheet: | MC34063ECN Datasheet/PDF |
Quantity: | 11 |
Voltage - Output (Min/Fixed): | 1.25V |
Base Part Number: | MC34063E |
Supplier Device Package: | 8-DIP |
Package / Case: | 8-DIP (0.300", 7.62mm) |
Mounting Type: | Through Hole |
Operating Temperature: | 0°C ~ 70°C (TA) |
Synchronous Rectifier: | No |
Frequency - Switching: | 100kHz |
Current - Output: | 1.5A (Switch) |
Voltage - Output (Max): | 38V |
Series: | -- |
Voltage - Input (Max): | 40V |
Voltage - Input (Min): | 3V |
Number of Outputs: | 1 |
Output Type: | Adjustable |
Topology: | Buck, Boost |
Output Configuration: | Positive or Negative |
Function: | Step-Up, Step-Down |
Part Status: | Active |
Packaging: | Tube |
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MC34063ECN Application Field and Working Principle
The MC34063ECN is a monolithic integrated circuit that offers the flexibility and accuracy to facilitate efficient, and cost-effective design of switch mode regulators. This type of regulator is ideal for use in a wide range of DC-DC converter applications such as step-up (boost), step-down (buck), and inverting. It belongs to the category of voltage regulators known as DC-DC switching regulators, which are used to convert an input DC or AC power source into a regulated output DC current.
Application Field
The MC34063ECN is widely used in consumer electronics products due to its flexibility and performance. It can be used in various applications such as:
- Notebook and desktop computers
- PDAs, Smartphones, and Tablet PCs
- Digital cameras
- Digital video cameras
- Voice over Internet Protocol (VoIP) phones
- Televisions, DVD players, Projectors, and Printers
- Mobile phones
Working Principle
The MC34063ECN works by regulating an input voltage from an AC or DC source to generate a desired DC output voltage. It does this by switching a power switch at a constant frequency and varying the duty cycle of the switch to achieve the desired output voltage. The MC34063ECN uses a pulse-width modulation (PWM) technique to control the power switch. The PWM signal is generated by a signal that is periodically compared to a reference voltage signal. The duty cycle of the signal is controlled such that the average output voltage is equal to the reference voltage signal. The frequency of switching is determined by an external timing capacitor connected to a dedicated timing pin.
To ensure stability and accuracy, the MC34063ECN also features frequency compensation circuitry, which is used to reduce the overall ripple of the output voltage. The frequency compensator adjusts its frequency in order to reduce the phase shift between the input and output voltages. In addition, the MC34063ECN includes a voltage feedback loop, which is used to adjust the duty cycle of the power switch in order to maintain the desired output voltage.
The MC34063ECN is available in a wide range of package sizes and includes protection circuitry against over-currents, short-circuits, and over-temperatures. The device also includes a frequency selection pin allowing the user to select from four different frequency options, which provides additional flexibility for various applications.
Summary
The MC34063ECN is a monolithic integrated circuit designed to provide cost-effective, efficient design of switch mode regulators. It is used in a wide range of DC-DC converter applications such as step-up (boost), step-down (buck), and inverting. It uses a pulse width modulation (PWM) technique to control a power switch, which is connected to an external timing capacitor to determine the switching frequency. The device also features frequency compensation circuitry and a voltage feedback loop, and is available in a wide range of package sizes. The MC34063ECN is used in a wide range of consumer electronics products due to its flexibility and performance.
The specific data is subject to PDF, and the above content is for reference
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