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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：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
Download product information
Overview
The L79L15ABD13TR is a three-terminal negative linear voltage regulator from the L79L series, manufactured by STMicroelectronics. It provides a fixed output voltage of -15 V with a maximum output current capability of 100 mA. The device operates within an extended temperature range of -40 °C to +125 °C and features internal thermal overload protection and short-circuit protection. Packaged in an 8-pin SOIC (SO-8) surface-mount format, it requires no external components for basic operation.
Feature Summary
- Integrated thermal overload protection and short-circuit protection mechanisms ensure robust operation under fault conditions.
- Designed as a fixed-voltage regulator requiring no external components for standard applications.
- Capable of delivering up to 100 mA output current when adequate heat dissipation is provided.
Applications
- Local or on-card regulation for noise elimination
- Replacement for Zener diode/resistor combinations
- Power pass elements for high-current voltage regulators
Procurement Notes
Verify that the specific suffix 'AB' corresponds to the required industrial temperature grade (-40°C to 125°C) rather than commercial grade. Confirm the SO-8 package dimensions match the PCB footprint requirements. Ensure input voltage polarity matches the negative regulator design constraints.
Selection Notes
Select this component for applications requiring a stable negative rail at -15 V. Consider the dropout voltage characteristics relative to the minimum input supply voltage. Evaluate thermal resistance requirements based on the expected load current and ambient operating temperature to ensure junction temperatures remain within safe limits.
Part Context
This part belongs to the L79L series of negative voltage regulators. The 'AB' designation indicates the industrial temperature range variant, while 'AC' variants are available for commercial ranges. The 'D13TR' suffix denotes the SO-8 surface-mount package configuration supplied in tape and reel format.
Replacement Considerations
- LM79L15ACM/NOPB
FAQ
What is the maximum DC input voltage for the L79L15ABD13TR?
The absolute maximum DC input voltage is -35 V.
Does the L79L15ABD13TR require external capacitors?
No external components are strictly required for basic regulation, though input and output capacitors are recommended for stability in practical circuits.
