L78L09ABZ

$0.28

Description：IC REG LINEAR 9V 100MA TO92-3
Series：-
Mfr：STMicroelectronics
Package：Bulk

SKU:e95c0324fd72 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 9V 100MA TO92-3
Series：-
Mfr：STMicroelectronics
Package：Bulk
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：30V
Voltage - Output (Min/Fixed)：9V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：100mA
Current - Quiescent (Iq)：5.5 mA
Current - Supply (Max)：6 mA
PSRR：44dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°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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L78L09ABZ

Overview

The L78L09ABZ is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92 package. It provides a fixed output voltage of 9 V with an output current capability up to 100 mA. The device features internal current limiting and thermal shutdown protection. It operates within a DC input voltage range of up to 30 V and supports an operating junction temperature range of -40 °C to +125 °C. The quiescent current is typically 6 mA at 25 °C.

Feature Summary

Internal current limiting and thermal shutdown for robust operation
No external components required for basic regulation
Fixed output voltage with ±4% tolerance (A grade)
Suitable for local or on-card regulation applications

Applications

Local or on-card voltage regulation
Replacement for Zener diode/resistor combinations
Battery-powered systems requiring low quiescent current

Procurement Notes

Verify the specific suffix 'ABZ' corresponds to the desired temperature range (-40°C to 125°C) and tolerance (±4%). Confirm the TO-92 package type matches your PCB footprint requirements. Ensure input voltage does not exceed the absolute maximum rating of 30V for the 9V output variant. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a fixed 9V output is needed with moderate current demands up to 100 mA. The TO-92 package is suitable for through-hole mounting. Consider the thermal resistance characteristics if high power dissipation is expected. The 'A' grade offers tighter voltage tolerance compared to the 'C' grade. Ensure adequate heat sinking if operating near maximum current limits.

Part Context

This part belongs to the L78Lxx series of three-terminal positive regulators. The series includes various fixed output voltages ranging from 3.3V to 24V. The L78L series is designed as a drop-in replacement for older Zener-based regulation circuits, offering improved stability and lower noise. It is widely used in general-purpose electronics where simple, reliable voltage regulation is required.