ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR -5V 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)：-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：-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 L79L05ABD13TR is a three-terminal negative voltage regulator from the L79L series, manufactured by STMicroelectronics. It provides a fixed output voltage of -5 V with an output current capability up to 100 mA. The device operates within a DC input voltage range of -7 V to -20 V and features internal thermal overload and short-circuit protection. It is housed in an 8-pin SOIC surface-mount package (SO-8) with dimensions of approximately 5 mm x 4 mm x 1.25 mm. The component supports an operating junction temperature range of -40 °C to +125 °C.
Feature Summary
- Provides stable fixed negative voltage regulation without requiring external components
- Includes internal current limiting and thermal shutdown for robust operation
- Offers improved effective output impedance compared to Zener diode/resistor combinations
Applications
- Local or on-card regulation for eliminating noise and distribution problems
- Replacement for Zener diode/resistor combinations in power supply circuits
- Use with power pass elements to construct high-current voltage regulators
Procurement Notes
Verify the specific suffix 'AB' indicates the industrial temperature grade (-40°C to 125°C) rather than commercial grade. Confirm the 'D13TR' suffix corresponds to the SO-8 tape and reel packaging format. Ensure compatibility with standard SO-8 footprints during PCB layout review.
Selection Notes
Select this component when a fixed -5 V negative rail is required with moderate current demands up to 100 mA. The industrial temperature rating makes it suitable for broader environmental conditions compared to commercial variants. Consider the SO-8 package for surface-mount assembly requirements.
Part Context
This part belongs to the L79Lxx series of three-terminal negative linear voltage regulators. The series includes various output voltages such as -5 V, -8 V, -12 V, and -15 V. The L79L05ABD13TR specifically denotes the -5 V output version with industrial temperature grading and SO-8 surface-mount packaging.
Replacement Considerations
LM79L05ACMX/NOPB (Texas Instruments)
FAQ
What is the maximum DC input voltage for the L79L05AB?
The absolute maximum DC input voltage is -30 V.
Does the L79L05AB require external capacitors for stability?
No external components are strictly required for basic operation, though input and output capacitors are recommended for optimal performance as per the datasheet test circuits.
