L78M24ACDT-TR

$0.59

Description：IC REG LINEAR 24V 500MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:777db323f72e Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 24V 500MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：24V
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：500mA
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：50dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package：DPAK
Grade：-
Qualification：-

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L78M24ACDT-TR

Overview

The L78M24ACDT-TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78MxxA series, housed in a surface-mount DPAK package. It provides a fixed output voltage of 24 V with an output current capability up to 0.5 A and a tolerance of ±2%. The device supports a maximum input voltage of 40 V for this output level and operates within a junction temperature range of 0 °C to 125 °C. Key electrical parameters include a typical quiescent current of 6 mA, a dropout voltage of 2 V at 25 °C, and a short circuit peak current limit of 700 mA.

Feature Summary

Integrated thermal overload protection that shuts down the circuit during excessive power conditions
Internal short-circuit protection limits maximum output current to prevent damage
Output transistor safe-area compensation reduces output current as voltage across the pass transistor increases

Applications

Local on-card regulation
Distribution systems replacing single-point regulation
Adjustable voltage and current circuits using external components

Procurement Notes

Verify the specific suffix 'DT' corresponds to the DPAK surface-mount package configuration required for your PCB layout. Confirm the 'AC' grade designation aligns with the specified 0 °C to 125 °C operating temperature range rather than the extended -40 °C to 125 °C AB grade. Ensure input bypassing capacitors are selected according to datasheet recommendations for stable operation under all load conditions.

Selection Notes

Select this component when a fixed 24 V output is required with moderate current demands up to 500 mA in a compact surface-mount form factor. Consider the DPAK package thermal resistance characteristics for adequate heat dissipation if delivering full load current. Verify that the input voltage range accommodates the minimum dropout requirement of 2 V while staying within the absolute maximum rating of 40 V.

Part Context

This part belongs to the L78MxxA family of precision regulators designed for applications requiring local regulation. The series includes various fixed output voltages ranging from 5 V to 24 V. The L78MxxA devices are distinguished by their internal protection features and ability to deliver over 0.5 A output current when provided with adequate heat sinking, making them suitable for robust power management solutions.