LM317EMPX/NOPBIn StockTexas Instruments
LM317EMPX/NOPB is a 1.5A adjustable output linear voltage regulator from Texas Instruments. It supports input voltages up to 40V with a 2.25V dropout voltage and an adjustable output range. Available in SOT-223 package from $0.594 with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (3-Pin)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM317EMPX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5940(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.5A continuous output current capability for versatile power supply designs
- Adjustable output voltage with input range from 3V to 40V
- 2.25V typical dropout voltage in compact SOT-223 (3-Pin) package
- RoHS compliant (Pb-free) meeting JESD-609 e3 standard
- Wide input-output differential up to 40V for flexible regulation
Applications
The LM317EMPX/NOPB is widely used in linear power supply circuits, battery charging systems, and programmable voltage regulators. Its adjustable output makes it ideal for embedded systems, industrial control boards, and laboratory bench power supplies. The SOT-223 package suits space-constrained PCB designs in consumer electronics and telecom equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 2.25V |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 3V |
| Input-Output Voltage Differential-Max | 40V |
| Input-Output Voltage Differential-Min | 3V |
| JESD-30 Code | R-PDSO-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max (%/V) | 0.05 |
| Load Regulation-Max(%) | 1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 37V |
| Output Voltage1-Min | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.3mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 5% |
| ## LM317EMPX/NOPB Alternates Showing results | Image |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM317EMPX/NOPB:
suggested
Frequently Asked Questions
What is the output voltage range of the LM317EMPX/NOPB?
The LM317EMPX/NOPB provides an adjustable output voltage range typically from 1.25V up to 37V, depending on the external resistor divider network connected to its adjustment pin, with a maximum input voltage of 40V.
What package does the LM317EMPX/NOPB use and what are its thermal benefits?
The LM317EMPX/NOPB comes in a SOT-223 (3-Pin) surface-mount package, which offers improved thermal dissipation compared to smaller packages like SOT-23, making it suitable for applications requiring up to 1.5A continuous output current.
What are typical applications for the LM317EMPX/NOPB?
Typical applications include adjustable linear power supplies, battery chargers, constant-current regulators, and voltage references in industrial, consumer electronics, and telecom equipment where a reliable 1.5A regulated output is needed.
Is the LM317EMPX/NOPB RoHS compliant?
Yes, the LM317EMPX/NOPB is fully RoHS compliant and lead-free, as indicated by its Pb-free code and JESD-609 e3 classification, making it suitable for environmentally regulated markets worldwide.
What is the dropout voltage of the LM317EMPX/NOPB?
The LM317EMPX/NOPB has a nominal dropout voltage of 2.25V, meaning the input voltage must be at least 2.25V higher than the desired output voltage to maintain regulation.
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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+ | $1.5640 | $1.56 |
| 25+ | $1.0033 | $25.08 |
| 100+ | $0.8963 | $89.63 |
| 135+ | $0.6750 | $91.13 |
| 446+ | $0.6300 | $280.98 |
| 1192+ | $0.5940 | $708.05 |
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