AN78L12M

Overview

The AN78L12M is a 3-pin, fixed positive output monolithic voltage regulator from the AN78LxxM series. It provides a stabilized 12 V DC output from an unstable input supply without requiring external components. The device supports a maximum output current of 100 mA and operates within a supply voltage range of 14.5 V to 27 V. It utilizes a silicon monolithic bipolar IC structure housed in a 3-pin plastic single inline package with heat sink (SIP type).

Feature Summary

• Fixed 12 V output voltage capability.
• Integrated overcurrent limit circuit for peak protection.
• Built-in thermal overload protection circuit.
• Requires no external components for operation.

Applications

• Power circuits requiring up to 100 mA capacity.
• General electronic equipment power regulation.
• Office equipment power supplies.
• Communications equipment power management.

Procurement Notes

Verify the current lifecycle status on the official Panasonic Industry website before procurement, as this component may be subject to maintenance or discontinuation schedules. Confirm that the specific package code HSIP003-P-0000Q matches your design requirements. Ensure compliance with export control laws if applicable. Consult sales staff for special applications involving aerospace, automotive, or life support systems.

Selection Notes

Select the AN78L12M when a fixed 12 V output is required with a maximum load current of 100 mA. Ensure the input voltage remains within the 14.5 V to 27 V operating range. Consider the SIP package form factor for mounting constraints. Verify thermal dissipation capabilities against ambient temperature conditions using the provided PD-Ta diagram to prevent exceeding the 150°C junction temperature cutoff.

Part Context

This component belongs to the AN78LxxM series of 3-pin positive output voltage regulators manufactured by Panasonic Electronic Components. The series offers various fixed output voltages including 4 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V, 18 V, 20 V, and 24 V. The AN78L12M specifically denotes the 12 V variant within this family of silicon monolithic bipolar ICs designed for general-purpose power regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the source material.

FAQ

What is the minimum input/output voltage difference?

The minimum input/output voltage difference is typically 1.7 V at a junction temperature of 25°C.

How does the device handle thermal overload?

The AN78L12M includes a built-in thermal overload protection circuit that cuts off the output if the internal junction temperature exceeds 150°C.

What is the bias current specification?

The typical bias current is 2.0 mA, with a maximum of 3.5 mA at a junction temperature of 25°C.