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Product Detailed Parameters
- Description：IC REG LINEAR -15V 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)：-35V
- Voltage - Output (Min/Fixed)：-15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：6.5 mA
- PSRR：39dB (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 L79L15ACD13TR is a three-terminal negative voltage regulator from the L79L series, manufactured by STMicroelectronics. It provides a fixed output voltage of -15 V with an output current capability of up to 100 mA. The device operates within a maximum DC input voltage range of -35 V and features internal thermal overload protection and short-circuit protection. It is housed in an 8-pin SOIC surface-mount package (SO-8) with dimensions of approximately 5 mm x 6 mm. The component supports an operating junction temperature range of 0 °C to 125 °C for the AC grade.
Feature Summary
- Provides fixed -15 V negative output voltage with up to 100 mA load current
- Includes internal thermal overload and short-circuit protection mechanisms
- Requires no external components for basic operation
- Available in ±5% output tolerance selection
Applications
- Local or on-card regulation for noise elimination
- Replacement for Zener diode/resistor combinations
- Distribution systems requiring stable negative voltage rails
Procurement Notes
Verify that the specific part number matches the required output voltage and package type. Confirm the AC suffix indicates the correct ±5% tolerance level. Ensure the ordering suffix corresponds to the tape and reel packaging format intended for automated assembly processes.
Selection Notes
Select this component when a fixed negative voltage rail is required for low-current applications. Consider the thermal resistance characteristics of the SO-8 package and ensure adequate copper area on the PCB for heat dissipation. Verify that the input voltage does not exceed the absolute maximum rating of -35 V under all operating conditions.
Part Context
This component belongs to the L79L series of three-terminal negative regulators. The series includes various fixed output voltages such as -5 V, -8 V, -12 V, and -15 V. The 'AC' designation specifies the output voltage tolerance, while the 'D13TR' suffix denotes the SO-8 surface-mount package and tape-and-reel shipping configuration.
Replacement Considerations
LM79L15ACM/NOPB
FAQ
What is the maximum DC input voltage for the L79L15ACD13TR?
The maximum DC input voltage is -35 V.
Does the L79L15ACD13TR require external capacitors to function?
No external components are strictly required for basic operation, though input and output capacitors are recommended for stability.
What is the operating temperature range for the AC grade?
The operating junction temperature range for the L79LXXAC grade is 0 °C to 125 °C.
