L78L12ACZ

$0.21

Description：IC REG LINEAR 12V 100MA TO92-3
Series：-
Mfr：STMicroelectronics
Package：Bulk

SKU:6353351ad0a8 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 12V 100MA TO92-3
Series：-
Mfr：STMicroelectronics
Package：Bulk
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：35V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：100mA
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：6.5 mA
PSRR：42dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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L78L12ACZ

Overview

The STMicroelectronics L78L12ACZ is a three-terminal positive linear voltage regulator delivering a fixed 12 V output with up to 100 mA current capability. It operates within a maximum input voltage of 35 V and features internal thermal overload and short-circuit protection. The device utilizes TO-92 through-hole packaging, supports an operating junction temperature range of 0 °C to 125 °C, and maintains a typical quiescent current of 6.5 mA.

Feature Summary

Internal current limiting and thermal shutdown mechanisms ensure robust operation under fault conditions.
Designed for local or on-card regulation to eliminate noise and distribution issues associated with single-point regulation.
Capable of functioning as a replacement for Zener diode/resistor combinations with improved performance.

Applications

Local or on-card voltage regulation
Replacement for Zener diode/resistor networks
Building blocks for high-current regulators using external pass elements

Procurement Notes

Verify the specific suffix 'AC' indicates ±4% output voltage tolerance against project requirements. Confirm that the TO-92 package aligns with PCB footprint constraints. Ensure input voltage does not exceed the 35 V absolute maximum rating for this output level. Check datasheet specifications for line and load regulation at expected operating currents.

Selection Notes

Select this component when a fixed 12 V supply is required with moderate current demands up to 100 mA. Consider the TO-92 package for through-hole assembly needs. Evaluate thermal dissipation capabilities based on the difference between input and output voltages and the specified thermal resistance values.

Part Context

This part belongs to the L78Lxx series of low-power positive voltage regulators from STMicroelectronics. The series provides various fixed output voltages including 3.3, 5, 6, 8, 9, 10, 12, 15, 18, and 24 V. The 'AC' designation specifies tighter voltage tolerance compared to standard variants.