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Product Detailed Parameters
- Description：IC REG LINEAR -5V 1.5A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.4V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The L7905ACV is a three-terminal negative linear voltage regulator from the L79xxAC series, manufactured by STMicroelectronics. It provides a fixed output voltage of -5 V with an output current capability up to 1.5 A. The device operates within a DC input voltage range of -35 V for this specific output voltage and supports an operating junction temperature range of 0 to 125 °C. It is housed in a TO-220 package.
Feature Summary
- Integrated thermal overload protection safeguards against excessive heat generation during operation.
- Built-in short circuit protection limits output current to prevent damage under fault conditions.
- Output transition SOA (Safe Operating Area) protection ensures stability across varying load and line conditions.
Applications
- Local on-card regulation to eliminate distribution problems associated with single-point regulation
- Split power supplies utilizing complementary positive regulators
- Negative voltage supply generation for electronic circuits
Procurement Notes
Verify that the component matches the exact L7905ACV designation to ensure correct polarity and voltage rating. Confirm the package type is TO-220 as specified. Check datasheet specifications for absolute maximum ratings before integration to avoid exceeding thermal or electrical limits.
Selection Notes
Select this component when a stable negative voltage rail is required for analog or digital logic circuits. Ensure the input voltage remains within the -35 V limit and adequate heat sinking is provided if continuous currents approach the 1.5 A maximum rating.
Part Context
This part belongs to the L79xxAC series of negative voltage regulators. It serves as the negative counterpart to the L78xxA positive regulator series, sharing similar voltage options and performance characteristics to facilitate the design of dual-polarity power systems.
Replacement Considerations
L7905ACD2T-TR (D2PAK variant)
FAQ
What is the maximum input voltage allowed for the L7905ACV?
The maximum DC input voltage is -35 V.
Does the L7905ACV include protection features?
Yes, it includes thermal overload protection, short circuit protection, and output transition SOA protection.
