LM2940S-5.0/NOPBIn StockTexas Instruments
LM2940S-5.0/NOPB is a 1A LDO linear regulator with 5V fixed output and <0.5V dropout, in TO-263 package. Priced from $1.625/unit, in-stock, MOQ 1, ships worldwide.
- Manufacturer
- Texas Instruments
- Package
- TO-263
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM2940S-5.0/NOPB Datasheet PDF
- Category
- power-management
- Price
- From $0.4667(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 output current
- Fixed 5V output
- Dropout <0.5V at 1A
- TO-263-3 SMD package
- Input range 6V–26V
- Thermal & current limiting
- RoHS/lead-free
Applications
Commonly used in automotive electronics, industrial power supplies, and portable consumer devices requiring a stable 5V rail from higher-voltage sources. Also suitable for post-regulator noise filtering in battery-operated systems.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| 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 | TUBE |
| 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 | TO-263 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL MSL1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2940S-5.0/NOPB:
Regulator, 5V, 1V Dropout, BIPolar, PSSO3
Regulator, 5V, 1V Dropout, BIPolar, PSSO3
Frequently Asked Questions
What is the maximum output current of LM2940S-5.0/NOPB?
The LM2940S-5.0/NOPB supports a maximum output current of 1A. It is designed for applications requiring a stable 5V supply with load currents up to 1A, with built-in current limiting and thermal shutdown for protection.
What package does LM2940S-5.0/NOPB use and how many pins does it have?
LM2940S-5.0/NOPB comes in the TO-263-3 (D²PAK) surface-mount package with 3 pins: input, output, and ground. The wide thermal pad aids heat dissipation, making it suitable for high-current applications without an external heatsink in many designs.
What is the input voltage range for LM2940S-5.0/NOPB?
The input voltage range is 6V to 26V, providing a 1V headroom above the 5V output to maintain regulation. The low dropout voltage (typically <0.5V at full load) makes it efficient for battery-powered systems where supply voltage may drop during discharge.
Is LM2940S-5.0/NOPB RoHS compliant?
Yes, the /NOPB suffix indicates the part is lead-free and RoHS compliant. It meets EU RoHS Directive requirements, making it suitable for consumer, industrial, and automotive products requiring halogen-free and lead-free components.
What are common alternatives to LM2940S-5.0/NOPB?
Common alternatives include the LM1117S-5.0 (800mA LDO, SOT-223), L7805ABD2T (1.5A, TO-263), and AMS1117-5.0 (1A, SOT-223). For higher-efficiency designs, consider switching regulators like TPS54231. Ensure dropout voltage and thermal characteristics match your application before substituting.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6250 | $1.63 |
| 4+ | $1.4000 | $5.60 |
| 15+ | $1.0500 | $15.75 |
| 739+ | $0.7475 | $552.40 |
| 1339+ | $0.6825 | $913.87 |
| 2500+ | $0.4667 | $1166.67 |
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