AN78L18

Description：IC REG LINEAR 18V 100MA 3-SSIP
Series：-
Mfr：Panasonic Electronic Components
Package：Bulk

SKU:a2fb88e72685 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Panasonic Electronic Components

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 18V 100MA 3-SSIP
Series：-
Mfr：Panasonic Electronic Components
Package：Bulk
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：18V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：100mA
Current - Quiescent (Iq)：3.5 mA
Current - Supply (Max)：-
PSRR：46dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：3-SSIP
Grade：-
Qualification：-

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AN78L18

Overview

The Panasonic AN78L18 is a discontinued monolithic linear voltage regulator providing a fixed positive output of 18V with a maximum current capacity of 100mA. It requires no external components for basic operation and features built-in overcurrent limiting and thermal overload protection circuits. The device accepts input voltages up to 40V and operates within an ambient temperature range of 0°C to 125°C. It is housed in a 3-pin SSIP or HSIP package.

Feature Summary

Provides stabilized fixed output voltage from unstable DC input without external parts
Includes internal overcurrent limit circuitry
Features built-in thermal overload protection

Applications

Power supply circuits requiring stable 18V regulation
General electronic equipment power conditioning
Industrial control system biasing

Procurement Notes

Verify component status as the AN78L18 is officially discontinued by Panasonic Industry. Confirm availability through authorized distributors or secondary markets. Request updated datasheets and lead-free package specifications (SSIP003-P-0000S/HSIP003-P-0000Q) if sourcing remaining stock. Validate electrical parameters against original specifications before integration into new designs.

Selection Notes

Select this component only for legacy maintenance or specific replacement scenarios where the 18V fixed output and 100mA current rating are required. Consider alternative manufacturers offering equivalent pin-compatible regulators if new design implementation is planned. Ensure input voltage remains within the 40V absolute maximum rating and verify thermal dissipation requirements for the chosen package type.

Part Context

The AN78L18 belongs to the AN78Lxx series, a family of 3-pin positive output voltage regulators manufactured by Panasonic Industry. This series offers various fixed output voltages ranging from 4V to 24V. The AN78L18 specifically targets applications needing an 18V regulated rail. It is part of Panasonic's historical PMIC portfolio for standard electronic equipment.