LM2940CT-5.0In StockTexas Instruments
LM2940CT-5.0 is a 1A low-dropout 5V linear voltage regulator by Texas Instruments, designed for systems powered by batteries or unregulated supplies. Key specs: 5V fixed output, 1A output current, low dropout voltage of 0.5V typical. From $0.48, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.4800(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5V Fixed Output Voltage with ±1% accuracy over temperature range
- 1A Output Current capability with low dropout voltage of 0.5V typical
- Low Quiescent Current drain extends battery life in portable systems
- Built-in protection: current limiting, thermal shutdown, and reverse battery protection
- TO-220 package for easy heatsinking in space-constrained designs
Applications
The LM2940CT-5.0 is widely used in battery-powered portable equipment where low dropout voltage is critical to maximizing operating time. It is ideal for post-regulator applications in automotive systems, powering microcontrollers, logic circuits, and sensors from a 5V regulated rail derived from a 6V–26V input supply. It is also commonly deployed in industrial control boards and handheld instruments requiring a stable, noise-free 5V power source.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM2940CT-5.0?
The LM2940CT-5.0 accepts an input voltage range from 6V to 26V, making it suitable for automotive and battery-powered applications. The fixed 5V output requires at least a 0.5V dropout above the output, so a minimum input of approximately 5.5V is needed for regulation.
What is the maximum output current of the LM2940CT-5.0?
The LM2940CT-5.0 can supply a maximum continuous output current of 1A. It includes built-in current limiting circuitry that protects the device and the load during overload conditions, ensuring reliable operation in demanding applications.
What package does the LM2940CT-5.0 come in?
The LM2940CT-5.0 is available in the TO-220 through-hole package, which provides excellent thermal performance and allows easy attachment to a heatsink. This makes it well suited for applications that require dissipating significant power at higher input voltages or load currents.
What are typical applications for the LM2940CT-5.0?
Typical applications include battery-powered portable devices, automotive electronics, microcontroller power supplies, industrial control systems, and any circuit needing a stable 5V rail from a higher or loosely regulated input supply. Its low dropout characteristic is especially valuable when input voltage is close to the 5V output.
Does the LM2940CT-5.0 include protection features?
Yes, the LM2940CT-5.0 integrates several protection features: internal current limiting, thermal shutdown that disengages the output when the die temperature exceeds safe limits, and reverse battery protection. These features make it robust against common fault conditions in automotive and portable equipment designs.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9600 | $0.96 |
| 27+ | $0.5760 | $15.55 |
| 105+ | $0.4800 | $50.40 |
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