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Product Detailed Parameters
- Description：IC REG LINEAR -8V 100MA 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-30V
- Voltage - Output (Min/Fixed)：-8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：45dB (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 L79L08ACD13TR is a three-terminal negative linear voltage regulator from the L79L series, manufactured by STMicroelectronics. It provides a fixed output voltage of -8 V with an output current capability up to 100 mA. The device operates within a junction temperature range of 0 °C to 125 °C and features internal thermal overload and short-circuit protection. It is housed in an SO-8 surface-mount package.
Feature Summary
- Internal current limiting and thermal shutdown mechanisms ensure robust operation under fault conditions.
- Designed for local or on-card regulation to eliminate noise associated with single-point distribution.
- Functions as a replacement for Zener diode/resistor combinations with improved output impedance.
Applications
- Local or on-card negative voltage regulation
- Noise elimination in power distribution systems
- Replacement for Zener diode/resistor combinations
Procurement Notes
Verify that the component matches the specific L79L08ACD13TR designation, ensuring the AC tolerance variant (-8V) and SO-8 package are correct. Confirm environmental compliance status such as ECOPACK grade and RoHS3 adherence against the manufacturer's latest documentation before finalizing procurement.
Selection Notes
Select this component when a fixed -8 V negative supply rail is required with currents up to 100 mA. The AC suffix indicates a ±5% output voltage tolerance. Ensure the application allows for adequate heat sinking if operating near maximum current limits to manage power dissipation effectively.
Part Context
This part belongs to the L79L series of negative voltage regulators. The 'AC' designation specifies the ±5% output voltage accuracy class, while the 'D13TR' suffix denotes the SO-8 surface-mount package configuration supplied in tape and reel format for automated assembly processes.
Replacement Considerations
Direct functional substitutes within the same series include L79L05ACD13TR, L79L12ACD13TR, and L79L15ACD13TR for different voltage outputs. Cross-series replacements like the L78Lxx positive regulators require circuit polarity inversion.
