
( Brand: St ), ( Manufacturer Part Number: L7905CD2 ), ( Part Type: Regulator )
The L7905CD2 is a high-performance, 19V, negative voltage regulator packed in a compact D2PAK-3 package. This linear regulator is ideal for applications that require a stable, regulated voltage output from a wide input voltage range.
The L7905CD2 operates on an input voltage range of 10V to 36V, making it suitable for use with a variety of power sources such as batteries, solar panels, or DC power supplies. It provides a stable output voltage of 19V with a maximum current output of 1A, ensuring reliable operation in many applications.
The regulator features a thermal shutdown mechanism that protects against overheating, ensuring the safety of your circuitry. It also has a low dropout voltage of approximately 1.5V at 1A, which minimizes power loss and improves efficiency.
The L7905CD2 is housed in a small, hermetic D2PAK-3 package, which offers excellent thermal performance and makes it easy to integrate into your design. The device is lead (Pb) free, RoHS compliant, and has a wide operating temperature range of -40 C to 125 C, making it suitable for use in a wide range of environments.
In summary, the L7905CD2 is a high-performance, 19V, negative voltage regulator that offers reliable operation, excellent thermal performance, and a compact, easy-to-use package. Its wide input voltage range, high output current, and thermal protection make it an excellent choice for many applications requiring stable voltage regulation.
Pros of buying a L7905CD2 19V Negative Regulator D2Pak-3:1. Wide Input Voltage Range: The L7905CD2 has a wide input voltage range from 7V to 36V, making it suitable for a variety of power sources.
2. High Output Current: It can deliver up to 1A of continuous output current, which is sufficient for most low-power applications.
3. Adjustable Output Voltage: The regulator allows for adjustable output voltage from 1.2V to 19V, providing flexibility in designing circuitry.
4. Compact Size: The D2Pak-3 packaging makes it a space-saving option for designs that require a linear regulator.
Cons of buying a L7905CD2 19V Negative Regulator D2Pak-3:1. Lower Efficiency Compared to Switching Regulators: Linear regulators like the L7905CD2 are less efficient than switching regulators, meaning they waste more power as heat.
2. Output Voltage is Not Fixed: The output voltage of the L7905CD2 is adjustable, which can be an advantage in some applications but may require additional circuitry for others.
3. Output Voltage Drift: Linear regulators like the L7905CD2 may have output voltage drift over temperature, which can affect the performance of the circuit.
4. Limited Output Current: While the L7905CD2 can deliver up to 1A of continuous output current, this may not be sufficient for high-power applications.
In conclusion, the L7905CD2 19V Negative Regulator D2Pak-3 is a versatile and compact linear regulator that can handle a wide input voltage range and deliver adjustable output voltage. However, its lower efficiency and output current limit compared to switching regulators, as well as potential output voltage drift, should be considered before making a purchase.
Recommendation: If you need a linear regulator for a low-power application that requires adjustable output voltage and has space constraints, the L7905CD2 19V Negative Regulator D2Pak-3 could be a good option. However, if you require higher output power or efficiency, a switching regulator might be more suitable.
19x St L7905CD2 5 v fixed negative regulator, d2pak-3.