MC78L15ACPRA

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MC78L15ACPRA is a fixed positive linear voltage regulator from the MC78L00A series, manufactured by onsemi. It provides a nominal output voltage of 15 V with a maximum continuous output current of 100 mA. The device operates within an ambient temperature range of 0°C to +125°C and is housed in a TO-92 (Case 029) three-pin package. Key electrical characteristics include a line regulation of 250 mV and a load regulation of 150 mV under specified test conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Internal short-circuit current limiting protects against output faults
• Integrated thermal overload protection prevents damage during excessive power dissipation
• Requires no external components for basic operation in many applications
• Lead-free construction compliant with environmental standards

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General-purpose regulated power supplies requiring up to 100 mA
• Local on-card regulation for logic circuits
• Current sources when configured with external resistors
• Tracking voltage regulators using complementary negative regulators

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify that the ordering suffix matches the required tape and reel packaging configuration. Confirm the 'AC' designation aligns with the necessary 0°C to +125°C operating temperature range. Ensure the TO-92 package type corresponds to the intended through-hole mounting requirements for the specific design.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 15 V output is required at currents up to 100 mA. Consider the internal current limiting and thermal shutdown features for ruggedness. Evaluate the thermal resistance of the TO-92 package relative to the expected power dissipation and ambient temperature conditions to ensure reliable operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the MC78L00A series of low-power positive voltage regulators. It serves as a cost-effective alternative to zener diode-resistor combinations, offering significantly lower output impedance and quiescent current. The series includes complementary negative regulators (MC79L00A) and higher-current variants like the MC78M00A and MC7800A.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

NCV78L15ACPRAG

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the typical dropout voltage for this regulator?

The dropout voltage is typically 1.7 V at 25°C.

Is an input bypass capacitor required?

It is recommended to bypass the input with a 0.33 µF or larger capacitor if the regulator is located an appreciable distance from the power supply filter.