LM2940SX-5.0/NOPBIn StockTexas Instruments
LM2940SX-5.0/NOPB is a 1A low dropout linear voltage regulator with 5.0V fixed output, up to 26V input, and 0.5V typical dropout voltage. Ideal for battery-powered and automotive applications. From $0.99 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2940SX-5.0/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9858(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1A continuous output current with low dropout voltage of 0.5V typical
- Fixed 5.0V output with wide input voltage range from 6.25V to 26V
- Built-in protection: reverse battery, short-circuit, and thermal shutdown
- SOT-223 (R-PSSO-G3) surface-mount package for compact PCB designs
- RoHS compliant (Pb-free) with 60V absolute maximum input voltage
Applications
The LM2940SX-5.0/NOPB is widely used in battery-powered portable devices where low dropout voltage extends battery life. It suits automotive electronics, industrial control systems, and consumer electronics requiring a stable 5V regulated supply. The device is also popular in embedded systems, microcontroller power rails, and sensor modules needing clean, regulated power.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 0.5V |
| Input Voltage Absolute-Max | 60V |
| Input Voltage-Max | 26V |
| Input Voltage-Min | 6.25V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.05% |
| Load Regulation-Max | 0.08% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the LM2940SX-5.0/NOPB?
The LM2940SX-5.0/NOPB has a typical dropout voltage of 0.5V and a maximum of 1V. This means the input voltage only needs to exceed the 5.0V output by as little as 0.5V under typical conditions, making it ideal for battery-powered applications where maximizing usable battery capacity is critical.
What is the maximum input voltage for the LM2940SX-5.0/NOPB?
The LM2940SX-5.0/NOPB supports an operating input voltage range of 6.25V to 26V, with an absolute maximum rating of 60V. This wide input range makes it suitable for automotive and industrial environments where supply voltages can vary significantly or experience transient spikes.
What package does the LM2940SX-5.0/NOPB come in?
The LM2940SX-5.0/NOPB is available in a SOT-223 (JESD-30 code: R-PSSO-G3) surface-mount package. This compact 3-pin package provides excellent thermal dissipation due to its exposed metal tab, making it well suited for space-constrained PCB designs requiring up to 1A output current.
What are the typical applications for the LM2940SX-5.0/NOPB?
The LM2940SX-5.0/NOPB is commonly used in automotive electronics, battery-powered portable devices, embedded microcontroller power supplies, industrial sensors, and consumer electronics. Its low dropout characteristic and robust protection features (reverse battery, short-circuit, thermal shutdown) make it reliable across a wide range of 5V regulated power supply designs.
Is the LM2940SX-5.0/NOPB RoHS compliant?
Yes, the LM2940SX-5.0/NOPB is RoHS compliant with a Pb-free (lead-free) construction, as indicated by its JESD-609 code e3 and Pbfree Code: Yes. It meets modern environmental regulations for electronics manufacturing, making it suitable for use in products sold in the EU and other markets with strict environmental standards.
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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+ | $2.3790 | $2.38 |
| 10+ | $1.7600 | $17.60 |
| 25+ | $1.3370 | $33.42 |
| 190+ | $1.0659 | $202.52 |
| 245+ | $1.0258 | $251.32 |
| 305+ | $0.9858 | $300.67 |
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