L78L09ACZ-AP

$0.23

Description：IC REG LINEAR 9V 100MA TO92-3
Series：-
Mfr：STMicroelectronics
Package：Cut Tape (CT),Tape & Box (TB)

SKU:ad2b9c930e0e 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：Cut Tape (CT),Tape & Box (TB)
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：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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L78L09ACZ-AP

Overview

The L78L09ACZ-AP is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92-3 package. It provides a fixed output voltage of 9V with a maximum continuous output current of 100mA. The device accepts a maximum DC input voltage of 30V and operates within a junction temperature range of 0°C to 125°C. Electrical characteristics include a typical quiescent current of 6mA at 25°C and a supply voltage rejection ratio of 44dB at 120Hz. The component features internal thermal overload protection and short-circuit protection.

Feature Summary

Integrates internal current limiting and thermal shutdown mechanisms for robust operation under fault conditions.
Provides fixed voltage regulation without requiring external components for basic functionality.
Offers improved performance over Zener diode/resistor combinations with lower quiescent current and noise.

Applications

Local or on-card voltage regulation to eliminate noise associated with single-point distribution.
Replacement for Zener diode and resistor combinations in low-current power supplies.
Configuration with external power pass elements to achieve high-current voltage regulation.

Procurement Notes

Verify that the ordering suffix 'AP' corresponds to the specific tape-and-reel or bulk packaging configuration required for your assembly process. Confirm the 'A' tolerance selection matches the circuit requirements against other available variants. Ensure the TO-92-3 through-hole package aligns with the printed circuit board footprint design before finalizing procurement.

Selection Notes

Select this component when a fixed 9V output is required with currents up to 100mA in a compact through-hole form factor. The ±4% voltage accuracy provided by the 'A' suffix suits applications demanding tighter regulation than standard 'C' variants. Consider the thermal resistance of the TO-92 package and ensure adequate copper area for heat dissipation if operating near maximum load limits.

Part Context

This part belongs to the L78Lxx family of three-terminal positive regulators manufactured by STMicroelectronics. The series includes various fixed output voltages ranging from 3.3V to 24V. The L78L09 variant specifically targets 9V applications, while the AC designation indicates the ±4% output voltage tolerance class within the product line.