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Product Detailed Parameters
- Description：IC REG LINEAR 5V 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)：30V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：49dB (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 L78L05ABD13TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in an 8-pin SOIC surface-mount package. It provides a fixed output voltage of 5V with a maximum output current capability of 100 mA. The device supports a maximum DC input voltage of 30V and operates within a junction temperature range of -40°C to +125°C. It features internal thermal overload protection and short-circuit protection, ensuring robust performance without requiring external components for basic regulation.
Feature Summary
- Integrated thermal overload and short-circuit protection mechanisms ensure operational safety under fault conditions.
- Designed as a fixed-voltage regulator suitable for local or on-card regulation applications.
- Capable of functioning as a replacement for Zener diode/resistor combinations with improved stability.
Applications
- Local or on-card voltage regulation
- Elimination of noise and distribution problems associated with single-point regulation
- Replacement for Zener diode/resistor combinations
Procurement Notes
Verify that the specific ordering suffix 'D13TR' corresponds to the SO-8 tape-and-reel packaging configuration. Confirm that the 'AB' designation indicates the required ±4% output voltage tolerance and extended industrial temperature range (-40°C to +125°C) rather than the standard commercial grade. Ensure compatibility with the target PCB footprint dimensions for the 8-SOIC package.
Selection Notes
Select this component when a fixed 5V output is required with a maximum load current of 100 mA in a surface-mount format. The 'AB' variant is necessary if operation below 0°C is required, as it supports temperatures down to -40°C. Consider the thermal resistance characteristics of the SO-8 package and the need for adequate copper area on the printed circuit board for effective heat dissipation during high-power dissipation scenarios.
Part Context
This part belongs to the L78Lxx family of low-current positive voltage regulators manufactured by STMicroelectronics. The family includes various output voltages and packages such as TO-92 and SOT-89. The L78L05ABD13TR specifically utilizes the SO-8 package, which offers enhanced thermal performance compared to through-hole options due to internal pin commutation to the die attach flag.
Replacement Considerations
MC78L05ABDR2G
FAQ
What is the output voltage tolerance for the L78L05ABD13TR?
The 'AB' suffix indicates a tighter output voltage tolerance of ±4%, compared to the ±8% tolerance found in the 'C' series variants.
Does the L78L05ABD13TR require external capacitors for operation?
No external components are strictly required for basic regulation, although typical application circuits often include input and output capacitors for stability and transient response improvement.
