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MC34063ACD-TR
+BOMIC REG BUCK BST ADJ 1.5A 8SO
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ManufacturerSTMicroelectronics
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Mfr. Part #MC34063ACD-TR
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Datasheet MC34063ACD-TR DataSheet
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Package SOIC-8
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In Stock1892
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Up, Step-Down |
| OutputConfiguration | Positive or Negative |
| Topology | Buck, Boost |
| OutputType | Adjustable |
| NumberofOutputs | 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 |
| SynchronousRectifier | No |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Overview
Description
Key features of the MC34063ACD-TR include its wide input voltage range, usually from 3V to 40V, and its ability to deliver output currents up to 1.5A. It offers a switching frequency of up to 100 kHz, which can be adjusted using external timing components. The IC also includes built-in protection features such as current limiting and thermal shutdown to ensure reliability and safety.
Common applications for the MC34063ACD-TR include battery-powered devices, automotive electronics, and general-purpose DC-DC conversion tasks, making it an essential component for engineers and designers working with power supply circuits.
Equivalent
1. LM2575 - A step-down voltage regulator.
2. LM2596 - Another step-down regulator with a higher current rating.
3. NCP3063 - A versatile step-up, step-down, or inverting switching regulator.
4. XL6009 - A boost converter for higher output voltages.
5. L4971 - A step-down switching regulator.
These alternatives offer similar functionalities and can vary in terms of efficiency, output current, and features. Always check the datasheets for compatibility with your specific requirements.
Features
1. Wide Input Voltage Range: Operates from 3V to 40V, suitable for various power supply requirements.
2. Adjustable Output Voltage: Allows tailoring to specific application needs.
3. Output Switch Current: Capable of delivering up to 1.5A, making it versatile for different load conditions.
4. Switching Frequency: Operates at a typical frequency of 100 kHz, aiding in efficient power conversion.
5. Internal Current Limiting: Provides protection against overload conditions.
6. Thermal Shutdown: Enhances reliability by preventing damage due to excessive heat.
7. Short-Circuit Protection: Increases durability by safeguarding against circuit faults.
8. Low Standby Current: Helps to minimize power consumption in standby mode.
These features make the MC34063ACD-TR a flexible solution for implementing efficient and reliable DC-DC conversion in a variety of electronic applications.
Pinout
1. Switch Collector (Pin 1): Connected to the inductor and supplies energy to the load.
2. Switch Emitter (Pin 2): Connects to the emitter of the internal switch transistor.
3. Timing Capacitor (Pin 3): Sets the oscillator frequency.
4. Ground (Pin 4): Common ground for the device.
5. Comparator Inverting Input (Pin 5): Receives the feedback voltage used to control the output voltage.
6. Voltage Reference (Pin 6): Provides a reference voltage for regulation.
7. VCC (Pin 7): Power supply input for the device.
8. Ipk Sense (Pin 8): Sets the peak current for the internal switch.
This IC is versatile and widely used in power management applications due to its simplicity and effectiveness in managing different voltage levels.