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Product Detailed Parameters
- Description：IC REG LINEAR 24V 100MA 8-SOIC
- 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：100mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：6.5 mA
- PSRR：37dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The L78L24ABD13TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in an SO-8 surface-mount package. It provides a fixed output voltage of 24 V with a maximum output current of 100 mA. The device features ±4% output voltage tolerance and operates within a junction temperature range of -40 °C to +125 °C. Maximum ratings include a DC input voltage of 40 V for this output level. Electrical characteristics specify a typical quiescent current of 6.5 mA at 25 °C, line regulation of 350 mV (VI = 27 to 38 V), load regulation of 200 mV (IO = 1 to 100 mA), and supply voltage rejection of 37 dB at 120 Hz.
Feature Summary
- Integrates internal thermal overload protection and short-circuit protection mechanisms.
- Designed as a fixed voltage regulator requiring no external components for basic operation.
- Capable of delivering up to 100 mA output current when adequate heat-sinking is provided.
Applications
- Local or on-card regulation to eliminate noise associated with single-point regulation.
- Replacement for Zener diode/resistor combinations offering lower quiescent current and noise.
- Use with power pass elements to construct high-current voltage regulators.
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm that the specific ordering suffix corresponds to the required tape-and-reel packaging format. Ensure the procurement documentation matches the exact part number to guarantee the specified ±4% tolerance and extended temperature range are met.
Selection Notes
Select this variant for applications requiring a 24 V fixed output with tight ±4% accuracy. The SO-8 package facilitates surface-mount assembly. Verify that the input voltage remains within the 40 V absolute maximum rating and that thermal management strategies accommodate the power dissipation limits inherent to linear regulation at this voltage differential.
Part Context
This component belongs to the L78Lxx family of three-terminal positive regulators. The 'A' designation indicates a tighter ±4% output voltage tolerance compared to the standard ±8% 'C' variants. The 'BD13TR' suffix denotes the SO-8 surface-mount package configuration supplied in a tape-and-reel format for automated assembly processes.
Replacement Considerations
- L78L24CD-TR
FAQ
What is the maximum DC input voltage allowed for the L78L24ABD13TR?
The maximum DC input voltage is 40 V.
Does the L78L24ABD13TR require external capacitors for stability?
No external components are strictly required for basic operation, though input and output capacitors are typically recommended for optimal performance.
