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MC34063ECN
+BOMIC REG BUCK BST ADJ 1.5A 8DIP
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ManufacturerSTMicroelectronics
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Mfr. Part #MC34063ECN
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Datasheet MC34063ECN DataSheet
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Package 8-DIP
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In Stock2515
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Specifications
| Attribute | Value |
| Package | Tube |
| 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 | Through Hole |
| Package/Case | 8-DIP (0.300, 7.62mm) |
Overview
Description
Key features of the MC34063ECN include an operating voltage range of 3V to 40V, switching current up to 1.5A, and a built-in oscillator with a frequency up to 100 kHz. The IC includes a reference regulator, a comparator, a controlled duty cycle oscillator, a driver, and a high-current output switch. Its low number of external components and high efficiency make it suitable for battery-powered devices and small power supplies.
Common applications of the MC34063ECN include powering portable electronics, automotive systems, and telecommunications equipment. It is valued for its reliability, cost-effectiveness, and flexibility in various circuit configurations, making it a popular choice for engineers designing compact and efficient power solutions.
Equivalent
1. LM2575
2. LM1577
3. NCP3063
4. MC33063A
5. UA78S40
These alternatives offer similar functionalities and can be used in comparable applications, though their specifications and features may vary slightly. Always check the datasheets to ensure compatibility with your design requirements.
Features
1. Operating Voltage Range: 3V to 40V, allowing flexibility in different applications.
2. Output Switch Current: Up to 1.5A, supporting sufficient power for medium-load applications.
3. Adjustable Output Voltage: Easily configurable for different output voltage levels.
4. Internal Temperature Compensation: Enhances reliability by managing performance over a range of temperatures.
5. Current Limiting: Built-in protection to prevent damage under overload conditions.
6. Low Standby Current: Efficient power usage, important for battery-powered applications.
7. Switching Frequency: Adjustable up to 100 kHz, allowing optimization for efficiency versus size of external components.
8. Minimal External Components Required: Simplifies circuit design and reduces overall system cost.
9. Package Options: Available in various packages, including DIP and SOIC, for design flexibility.
These features make the MC34063ECN suitable for designing step-up, step-down, and inverting converters in a variety of applications.
Pinout
1. Pin 1 (Switch Collector, Switch Output): Connected to the inductor and helps in switching.
2. Pin 2 (Switch Emitter, Ground): Ground connection for the switching transistor.
3. Pin 3 (Timing Capacitor): Used to set the oscillator frequency with an external capacitor.
4. Pin 4 (GND): Ground pin for the IC.
5. Pin 5 (Comparator Inverting Input): For feedback voltage to regulate output voltage.
6. Pin 6 (VCC, Voltage Supply): Input for the supply voltage.
7. Pin 7 (Ipk Sense): Current limit input to control the peak current.
8. Pin 8 (Driver Collector, VCC): Provides output voltage and connects to the inductor.
These pins collectively enable the MC34063ECN to regulate voltage in various power supply configurations efficiently.