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MC34063ACD
+StücklisteIC REG BUCK BST ADJ 1.5A 8SO
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HerstellerSTMikroelektronik
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Herstellerteil #MC34063ACD
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Datenblatt MC34063ACD DataSheet
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Paket SOP-8
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Auf Lager4954
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tube |
| ProductStatus | Obsolete |
| 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) |
Übersicht
Description
Key features of the MC34063ACD include an internal temperature-compensated reference, a high-precision comparator, a controlled duty cycle oscillator, and a driver with a current limiting resistor. The switch current limiting, low standby current, and adjustable output voltage are additional attributes that enhance its usability in various applications.
This IC is commonly used in battery-powered devices, telecommunications, automotive electronics, and consumer electronics, where efficient power conversion is necessary. Its popularity is due to its cost-effectiveness, ease of use, and robust performance in delivering reliable power conversion.
Equivalent
Features
1. Operating Voltage Range: 3V to 40V, allowing for flexibility in input power sources.
2. Output Current: Capable of delivering up to 1.5A, suitable for moderate power applications.
3. Adjustable Output Voltage: The output voltage can be set using external resistors, providing customization for various needs.
4. Switching Frequency: It operates at a frequency up to 100 kHz, facilitating efficient energy conversion.
5. Internal Current Limiting: Protects the IC and connected components by limiting the output current.
6. On-chip Voltage Reference: A built-in 1.25V reference voltage ensures accurate operation.
7. Economical: It is cost-effective, making it ideal for budget-conscious designs.
8. Compact Package: Available in various package types that save space in circuit designs.
9. Versatility: Supports step-up, step-down, and inverting configurations.
These features make the MC34063ACD suitable for battery-powered devices, automotive applications, and other areas requiring efficient power conversion.
Pinout
1. Switch Collector (SWC): The collector of the internal switch transistor.
2. Switch Emitter (SWE): The emitter of the internal switch transistor, usually connected to ground.
3. Timing Capacitor (TC): Sets the oscillator frequency with an external capacitor.
4. Ground (GND): Common ground for power and signal.
5. Comparator Inverting Input (CMP-): Inverting input for the internal comparator.
6. Voltage Feedback (VFB): Non-inverting input for the comparator, used for voltage regulation.
7. Ipk Sense (IPK): Current sensing pin for controlling the peak current in the switch.
8. VCC: Supply voltage input for the IC.
This versatile IC is widely used in power supply circuits due to its simplicity and ability to handle a wide range of voltage levels.
Manufacturer
Application
1. Step-up (Boost) Converters: Used to increase voltage from a lower level to a higher level.
2. Step-down (Buck) Converters: Used to reduce voltage from a higher level to a lower level.
3. Inverting Converters: Used to invert the input voltage, providing a negative output voltage.
4. Battery-Powered Devices: Utilized for efficient power management and voltage conversion.
5. Consumer Electronics: Found in power supplies for devices like LCD monitors and portable gadgets.
6. Automotive Systems: Used in car electronics for voltage regulation.
Its wide input voltage range and adjustable output make it suitable for various power management applications.