L200CV Description
The L200CV is a versatile voltage regulator that can be used for both positive and negative voltage regulation. It can be adjusted to provide an output voltage ranging from 2.85V to 36V with a maximum output current of 2A. The L200CV is commonly used in power supplies and other applications requiring a stable and adjustable voltage output.
The working principle of the L200CV involves an internal reference voltage and error amplifier. The regulator compares the output voltage to the internal reference and adjusts the pass element (typically a transistor) to maintain a constant output voltage. By using external resistors, the output voltage can be adjusted to the desired level. Additionally, the L200CV includes features such as current limiting, thermal shutdown, and safe area protection to ensure reliable operation and protection against overloads and overheating.
L200CV Pinout
L200CV CAD Model
Symbol
Footprint
3D Model
L200CV Block Diagram
L200CV Schematic Diagram
L200CV Specifications
| Specification | Value |
| Input Voltage（Min） | 2.85V |
| Input Voltage（Max） | 40V |
| Output Voltage (Min) | 2.85V |
| Output Voltage (Max) | 36V |
| Output Current | 2A |
| Reference Voltage | 2.77V (typical) |
| Dropout Voltage(Max) | 2.5V @ 1.5A |
| Load Regulation | 0.03% (typical) |
| Line Regulation | 0.01% (typical) |
| Current Limiting | Adjustable |
| Temperature Range | -25°C to +125°C |
| Package | Pentawatt-5 (Vertical, Bent and Staggered Leads) |
| Quiescent Current | 4 mA (typical) |
| PSRR | 60dB (100Hz) |
| Maximum Power Dissipation | 20W (depends on heat sink and ambient temp) |
| Voltage Reference Accuracy | ±1% |
L200CV Features
- The L200CV provides output voltages from 2.85V to 36V.
- Capable of delivering up to 2A of output current.
- The input voltage range is 2.85V to 40V.
- Features adjustable current limit to prevent overcurrent.
- Built-in thermal protection prevents overheating.
- Ensures safe operation by limiting power dissipation.
- The typical quiescent current is 4 mA.
- Short circuit, thermal shutdown, safe area protection, etc.
L200CV Applications
Power Supplies: Used in adjustable and fixed power supply designs for both consumer and industrial electronics.
Battery Chargers: Ideal for designing battery chargers for various types of rechargeable batteries.
Voltage Regulation: Employed in circuits where stable and adjustable voltage is required, such as laboratory equipment and instrumentation.
DC-DC Converters: Utilized in DC-DC converter designs for efficient power management.
Embedded Systems: Used in microcontroller-based systems.
L200CV Manufacturer
STMicroelectronics (ST), established in 1987, is a leading global semiconductor manufacturer. The company offers a wide range of products, including microcontrollers, sensors, and power management ICs like the L200CV, which is a versatile voltage regulator. ST serves various markets, such as automotive, industrial, and personal electronics, and emphasizes innovation, sustainability, and corporate social responsibility.
L200CV Package
The L200CV is available in a Pentawatt-5 package, which provides a suitable form factor for a versatile voltage regulator. The Pentawatt-5 package is a power package that has five pins and provides strong heat dissipation and mechanical stability. The Pentawatt-5 package is commonly used in power supply circuits, motor controllers, and other high-power electronic devices.
How to Use L200CV?
Calculate Output Voltage: Determine the desired output voltage using the formula
Connect Input Voltage: Attach the input voltage to the input pin (max 40V).
Ground Connection: Connect the ground pin to system ground.
Setup Resistors: Connect R1 and R2 between output and adjust pins; adjust pin goes to ground through R1R1R1.
Add Capacitors: Place 0.1µF capacitor between input pin and ground, and 1µF capacitor between output pin and ground.
Test and Adjust: Power the circuit, check output voltage, and adjust R2 for fine-tuning.
FAQs
How does the L200CV provide thermal protection?
The L200CV includes an internal thermal shutdown feature that automatically disables the output when the device exceeds a certain temperature, preventing damage due to overheating.
How can I improve the stability of the L200CV in my circuit?
To improve stability, use capacitors at the input and output terminals. A capacitor of 100µF at the input and 10µF at the output is generally recommended. Additionally, a 100nF capacitor can be placed close to the L200CV for high-frequency noise filtering.
What type of external components are required to use the L200CV?
To use the L200CV, you typically need external resistors to set the output voltage, capacitors for stability, and possibly a heat sink for thermal management.
Conclusion
In summary, the L200CV is a powerful programmable voltage and current regulator with high flexibility and reliability. Its Pentawatt-5 package ensures excellent heat dissipation performance, and also provides excellent mechanical strength, current limiting, power limiting, thermal shutdown and input overvoltage protection, making the L200CV almost worry-free in various applications. Overload or overheating problems. For occasions requiring high-precision output voltage, the L200CV is an alternative to fixed voltage regulators, so you no longer need to stock various spare fixed voltage regulators.
