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L78M24ABDT-TR

Name: L78M24ABDT-TR
Rating: 4.7 (12 reviews)

IC REG LINEAR 24V 500MA DPAK

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製造商。部分 #L78M24ABDT-TR
包 TO-252
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
OutputConfiguration	Positive
OutputType	Fixed
NumberofRegulators	1
Voltage-Input(Max)	40V
Voltage-Output(Min/Fixed)	24V
Current-Output	500mA
Current-Quiescent(Iq)	6 mA
PSRR	50dB (120Hz)
ProtectionFeatures	Over Current, Over Temperature, Short Circuit
OperatingTemperature	-40°C ~ 125°C
MountingType	Surface Mount
Package/Case	TO-252-3, DPak (2 Leads + Tab), SC-63

概述

Description

An introduction to L78M24ABDT-TR:
- A fixed +24 V positive linear regulator in the L78M family (STMicroelectronics).
- Three-terminal device: input, ground, and output.
- Output: +24 V with dropout ≈ 2 V; includes protection features (current limit and thermal shutdown).
- Input range: up to about 28–30 V (max around 30 V).
- Output current: typically up to ~0.5–1 A depending on heat sinking.
- Package: TO-220AB style, with tape-and-reel packaging (TR); DT denotes variant code.
- Pinout (front view): Pin 1 = Input, Pin 2 = Ground, Pin 3 = Output.
- External components: input capacitor (≈0.33 µF) and output capacitor (≈0.1 µF) recommended; larger electrolytics for ripple and stability.
- Applications: power supplies and embedded systems needing a stable 24 V rail.
Note: Always check the exact datasheet for the specific device variant’s thermal limits, current rating, and pinout.

Features

- 3-terminal fixed positive regulator
- Output voltage: 24 V
- Max load current: 0.5 A
- Input voltage range: up to 35 V
- Dropout voltage: ~2 V at full load
- Internal protection: current limit and thermal/shutdown protection
- Good line and load regulation
- Operating temperature: -40°C to +125°C
- Package: TO-220AB; TR denotes Tape & Reel
- Stability requires input and output capacitors (e.g., ≈0.33 μF input, ≈0.1 μF output)

Package

TO-220AB through-hole package. The -TR suffix indicates Tape & Reel packaging. L78M24ABDT-TR is a 3-terminal positive regulator in TO-220AB format.

Pinout

- Pin count: 3
- Pinout (TO-220 style): Pin 1 = Input, Pin 2 = Ground, Pin 3 = Output
- Function: Fixed 24 V positive voltage regulator (L78M24).

Manufacturer

Manufacturer: STMicroelectronics (ST).
STMicroelectronics is a multinational semiconductor company that designs and manufactures a broad range of integrated circuits and electronic components (power management, sensors, microcontrollers, etc.). It is headquartered near Geneva, Switzerland, and is one of the world’s largest semiconductor producers.

Application

Applications areas for L78M24ABDT-TR (fixed 24V regulator):
- Industrial automation and control circuits needing a stable 24V rail
- Relay/solenoid and small-motor drive stages
- Instrumentation, measurement equipment, and embedded/logic systems
- Telecom/data-communication equipment with 24V DC distribution
- Automotive/transportation electronics (with adequate heat sinking)

Equivalent

Common equivalents (24V fixed positive regulator, TO-220/TR style):
- LM78M24A / LM78M24 (National Semiconductor / TI)
- MC78M24BDTR (ON Semiconductor)
- KA78M24BDTR (Renesas/Fairchild lineage)
- NTE78M24 (NTE cross-reference)
Note: exact packaging/pinout may vary slightly; verify datasheet and pinout before substitution.