LM2990T-15/NOPB Texas Instruments Transistor (Transistor Outline, Vertical) In Stock
Texas Instruments LM2990T-15/NOPB is a fixed -15V negative LDO voltage regulator delivering 1A output current with ±5% accuracy, 0.6V typical dropout voltage, and input range up to 26V in a TO-220 package. From $1.875, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM2990T-15/NOPB Datasheet PDF
- Category
- Transistor
- Price
- From $1.8750(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed -15V negative output voltage with ±5% regulation accuracy for precision analog applications
- Low dropout voltage of 0.6V typical (1V max) enabling efficient operation close to output voltage
- 1A continuous output current capability in compact TO-220 3-pin through-hole package
- Wide input voltage range from 16V to 26V (absolute max 26V) for flexible power supply designs
- RoHS-compliant Pb-free construction (JESD-609 e3) suitable for modern eco-conscious designs
Applications
The LM2990T-15/NOPB is ideal for powering negative-rail analog circuits such as op-amp dual-supply systems, audio preamplifiers, and signal conditioning stages that require a stable -15V rail. It is widely used in industrial instrumentation, test equipment, and communications hardware where low noise and tight regulation of negative supply voltages are critical. Its simple 3-pin TO-220 form factor also makes it a drop-in solution for legacy board redesigns requiring a regulated negative voltage source.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 0.6V |
| Input Voltage Absolute-Max | 26V |
| Input Voltage-Max | 26V |
| Input Voltage-Min | 16V |
| JESD-30 Code | R-XSFM-T3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.06% |
| Load Regulation-Max | 0.05% |
| 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 | 15.75V |
| Output Voltage1-Min | 14.25V |
| Output Voltage1-Nom | 15V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP3,.1TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | TUBE |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED NEGATIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Voltage Tolerance-Max | 5% |
| Package | Transistor Outline, Vertical |
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 LM2990T-15/NOPB:
Regulator, 15V, 1V Dropout, BIPolar, PSFM3
Frequently Asked Questions
What is the output voltage and accuracy of the LM2990T-15/NOPB?
The LM2990T-15/NOPB provides a fixed -15V negative output voltage with ±5% accuracy. This means the output is guaranteed between -14.25V and -15.75V over the full operating range, making it suitable for precision analog and mixed-signal circuits that require a stable negative supply rail.
What input voltage range is required to operate the LM2990T-15/NOPB?
The LM2990T-15/NOPB requires an input voltage between -16V and -26V (absolute maximum -26V) to maintain the regulated -15V output. The typical dropout voltage is 0.6V and the maximum dropout is 1V, so a minimum input of approximately -16V is needed to keep the output in regulation at full load.
How much output current can the LM2990T-15/NOPB supply?
The LM2990T-15/NOPB is rated for up to 1A continuous output current. This is sufficient for powering analog front-ends, op-amp networks, and other moderate-load negative-rail circuits in industrial and audio applications.
What package does the LM2990T-15/NOPB use and is it RoHS compliant?
The LM2990T-15/NOPB comes in a 3-pin TO-220 through-hole package (JESD-30 code R-XSFM-T3), which provides good thermal dissipation and easy board mounting. It is Pb-free and RoHS compliant per JESD-609 e3 coding, making it compatible with modern lead-free soldering processes.
What are typical applications for the LM2990T-15/NOPB?
Typical applications include dual-supply op-amp circuits, audio preamplifiers, analog signal conditioning, industrial instrumentation power supplies, and any system requiring a regulated -15V negative rail. Its fixed output and simple pin-out make it straightforward to use as a standalone negative regulator with just input/output bypass capacitors.
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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.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.7500 | $3.75 |
| 4+ | $2.5000 | $10.00 |
| 11+ | $1.8750 | $20.63 |
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