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Product Detailed Parameters
- Description：IC REG LINEAR -5V 100MA SOT89-3
- 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：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The L79L05ACUTR is a three-terminal negative linear 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 protection and short-circuit protection. It is housed in a SOT-89 surface-mount package.
Feature Summary
- Integrated thermal overload protection and short-circuit protection for robust operation
- Designed as a fixed voltage regulator requiring no external components
- Suitable for local or on-card regulation to eliminate noise associated with single-point regulation
Applications
- Local or on-card voltage regulation
- Replacement for Zener diode/resistor combinations
- Negative power supply generation in electronic circuits
Procurement Notes
Verify that the specific part number matches the required SOT-89 package configuration and AC tolerance grade. Confirm the ordering suffix aligns with the desired packaging format. Ensure compatibility with the target application's thermal requirements and input voltage constraints before procurement.
Selection Notes
Select this component when a stable negative voltage rail is required for low-to-moderate current loads. Consider the SOT-89 package for surface-mount assembly needs. Evaluate thermal dissipation capabilities if operating near maximum current limits or high ambient temperatures.
Part Context
This component belongs to the L79L series of negative voltage regulators. The series includes variants with different output voltages (-5V, -8V, -12V, -15V) and packages (TO-92, SO-8, SOT-89). The 'AC' designation indicates a ±5% output voltage tolerance.
Replacement Considerations
Compatible substitutes include other L79LxxAC variants with different output voltages or packages, such as L79L08ACUTR or L79L12ACUTR, provided the voltage requirement differs. Cross-brand equivalents may exist but require verification of pinout and electrical characteristics.
