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Product Detailed Parameters
- Description：IC REG LINEAR -5V 100MA 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Negative
- 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 Temperature, Short Circuit
- Operating Temperature：0°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 L79L05ACD is a three-terminal negative linear voltage regulator from the L79L series by STMicroelectronics. It provides a fixed output voltage of -5 V with a maximum output current of 100 mA. The device features internal thermal overload protection and short-circuit protection, ensuring robust operation. It operates within a junction temperature range of 0 to 125 °C for the AC grade. The component is housed in an SO-8 surface-mount package.
Feature Summary
- Incorporates internal current limiting and thermal shutdown mechanisms for inherent protection against overload conditions.
- Functions as a direct replacement for Zener diode and resistor combinations, offering significantly lower output impedance and reduced noise.
- Designed for local or on-card regulation to eliminate noise and distribution issues associated with single-point regulation systems.
Applications
- Local or on-card voltage regulation
- Replacement for Zener diode/resistor networks
- Negative power supply generation
Procurement Notes
Verify the specific suffix 'D' corresponds to the SO-8 package configuration required for your design. Confirm that the AC accuracy grade meets your circuit tolerance requirements. Ensure the input voltage remains within the absolute maximum ratings to prevent device damage. Check for any specific handling precautions related to the surface-mount package type during assembly.
Selection Notes
Select this component when a fixed negative voltage rail is required for low-to-moderate current applications up to 100 mA. The SO-8 package is suitable for surface-mount technology (SMT) PCB layouts. Consider the thermal resistance characteristics if operating near maximum load currents to ensure adequate heat dissipation without external heatsinks.
Part Context
This part belongs to the L79L00 series of three-terminal negative regulators. The series includes various output voltage options such as -6 V, -8 V, -9 V, -12 V, and -15 V. The L79L series is designed to provide stable regulation with minimal external components, serving as a compact solution for negative voltage requirements in electronic circuits.
Replacement Considerations
MC79L05ABDR2G
FAQ
What is the maximum output current capability of the L79L05ACD?
The L79L05ACD can deliver a maximum output current of 100 mA.
Does the L79L05ACD require external components for basic operation?
No external components are required for basic voltage regulation functionality, although capacitors may be added for stability depending on the application.
What protection features are integrated into the L79L05ACD?
The device includes internal current limiting and thermal overload protection to safeguard against short circuits and excessive temperatures.
