L7809CV-DG

$0.57

Description：IC REG LINEAR 9V 1.5A TO220
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:ab29c003e6a8 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 1.5A TO220
Series：-
Mfr：STMicroelectronics
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：35V
Voltage - Output (Min/Fixed)：9V
Voltage - Output (Max)：-
Voltage Dropout (Max)：2V @ 1A (Typ)
Current - Output：1.5A
Current - Quiescent (Iq)：8 mA
Current - Supply (Max)：-
PSRR：55dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220
Grade：-
Qualification：-

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L7809CV-DG

Overview

The L7809CV-DG is a three-terminal positive linear voltage regulator from the STMicroelectronics L78 series. It provides a fixed 9 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range up to 35 V and supports junction temperatures from 0°C to +125°C. Internal protections include thermal overload shutdown, short-circuit limiting, and safe operating area (SOA) protection. The component is housed in a TO-220-3 through-hole package.

Feature Summary

Integrated thermal overload protection prevents damage during overheating conditions.
Built-in short-circuit current limiting ensures robust operation under fault scenarios.
Safe Operating Area (SOA) protection maintains stability across varying load conditions.

Applications

Local on-card voltage regulation for electronic circuits
General-purpose power supply units requiring stable DC output
Battery-powered systems needing efficient linear regulation

Procurement Notes

Verify the specific suffix 'DG' against the manufacturer's official documentation to confirm exact pinout and marking variations. Confirm RoHS compliance status directly with the supplier or datasheet revision history. Ensure the TO-220-3 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a fixed 9 V output at up to 500 mA is required. Consider the TO-220-3 package for through-hole mounting applications. Evaluate thermal management needs based on the input-to-output voltage differential and load current to ensure operation within the specified temperature range.

Part Context

This part belongs to the L78 series of three-terminal positive regulators. The series is designed for local on-card regulation, eliminating distribution problems associated with single-point regulation. These devices are widely used in general electronics due to their reliability and integrated protection features.