QN78L05

The QN78L 05 three terminal positive regulators available with 5V fixed output voltage, making it useful in a wide range of applications. Used as a Zener-diode and resistor combination replacement, the QN78L0 5 usually provides an effective output impedance improvement of orders of magnitude and lower quiescent current. These regulators can provide local, on-card regulation, eliminating distribution problems associated with single-point regulation. The available voltages allow the QN78L0 5 to be used in logic systems, instrumentation, HiFi, and other solid-state electronic equipment. The QN78L0 5 is available in the plastic TO-92 package, SOT89-3 package, SOT23-3 package, and SOP8 package. With adequate heat sinking, the regulator can deliver 100-mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation is too high for the heat sinking provided, the thermal shutdown circuit prevents the IC from overheating. Output Current of 100 mA S Output Transistor Safe Area Protection is Internal Thermal Overload Protection Internal Short-Circuit Current Limit Available in TO-92, SOT-893, SOT23-3, SOP8 Low Profile Packages

Applications

• Battery Chargers
• Portable Instrumentation
• LED Lighting
• Low Wattage Power Supplies

Key features

• VIN Range up to 30V
• Output Voltage Tolerances of ±5% Over the Temperature Range