LM7805CK Texas Instruments Integrated Circuit (Other) In Stock
The LM7805CK is a fixed 5 V series linear voltage regulator from Texas Instruments accepting 7.5 V to 20 V input with a maximum absolute rating of 35 V. It features 0.05% line and load regulation and 2 V nominal dropout voltage in a 2-pin metal can (TO-39) package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- LM7805CK Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5 V output with excellent 0.05% line and load regulation ensuring stable supply voltage for sensitive analog and digital circuits
- Wide 7.5 V to 20 V input voltage range (35 V absolute maximum) accommodating a broad variety of unregulated supply inputs
- 2 V nominal dropout voltage enabling reliable regulation even with moderate input-output voltage differentials
- Robust 2-pin aluminum metal can package (TO-39) offering superior thermal performance and long-term reliability for through-hole designs
Applications
The LM7805CK is a classic 5 V linear regulator widely used in power supply circuits for microcontrollers, logic ICs, and analog instrumentation requiring a stable 5 V rail. Its metal can package provides excellent thermal dissipation, making it suitable for benchtop instruments, legacy industrial equipment, and through-hole prototype boards. The device is also commonly used in educational electronics, test equipment, and retrofit power supply applications where a reliable 5 V fixed output is needed.
Specifications
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 2V |
| Input Voltage Absolute-Max | 35V |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 7.5V |
| JESD-30 Code | O-MBFM-P2 |
| Line Regulation-Max | 0.05% |
| Load Regulation-Max | 0.05% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | METAL |
| Package Equivalence Code | TO-204/-3 |
| Package Shape | ROUND |
| Package Style | FLANGE MOUNT |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Form | PIN/PEG |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage of the LM7805CK?
The LM7805CK provides a fixed 5 V regulated output voltage, making it one of the most widely used linear regulators for powering 5 V logic circuits, microcontrollers, and analog ICs in a broad range of electronic applications.
What is the input voltage range of the LM7805CK?
The LM7805CK accepts an input voltage between 7.5 V (minimum) and 20 V (maximum), with an absolute maximum rating of 35 V. This wide range accommodates most unregulated DC power supplies, wall adapters, and transformer outputs.
What package does the LM7805CK use?
The LM7805CK comes in a 2-pin aluminum metal can package (JESD-30 code O-MBFM-P2, also known as TO-39), a through-hole package known for excellent thermal conductivity and mechanical robustness, commonly found in legacy industrial and test equipment designs.
What is the line and load regulation of the LM7805CK?
The LM7805CK offers 0.05% maximum line regulation and 0.05% maximum load regulation, providing excellent output voltage stability across varying input voltages and load currents, critical for precision analog and mixed-signal circuit applications.
What is the dropout voltage of the LM7805CK?
The LM7805CK has a nominal dropout voltage of 2 V, meaning the input supply must be at least 7 V (typically 7.5 V minimum specified) to maintain the regulated 5 V output, which is important for proper power supply design and headroom planning.
Related Guides
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”