LM2991S/NOPB Texas Instruments Integrated Circuit (TO-XXX (Inc. DPAK)) In Stock
LM2991S/NOPB is a negative low dropout adjustable linear voltage regulator from Texas Instruments. It features a 0.6V typical dropout voltage, supports input voltages up to 26V, and delivers adjustable negative output voltages. Available from $2.76 with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2991S/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7600(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM2991S/NOPB?
- Negative adjustable output voltage regulator with wide input range up to 26V
- Low dropout voltage of 0.6V typical, 1V maximum for efficient regulation
- Excellent line regulation of 0.04%/V for stable output under varying conditions
- RoHS compliant (Pb-free, JESD-609 e3) in compact TO-DPAK package
- 34 parametric specifications for precise application design
What is LM2991S/NOPB used for?
The LM2991S/NOPB is well suited for powering negative supply rails in analog signal processing circuits, audio amplifiers, and op-amp biasing applications. It is commonly used in industrial control systems and test equipment where a stable, adjustable negative voltage is required. Its low dropout characteristic makes it ideal for battery-powered portable equipment demanding high efficiency.
What are the specifications of LM2991S/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 0.6V |
| Input Voltage-Max | 0.3V |
| Input Voltage-Min | 26V |
| JESD-30 Code | R-PSSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max (%/V) | 0.04 |
| Load Regulation-Max(%) | 0.4% |
| 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 | 24V |
| Output Voltage1-Min | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE NEGATIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 5% |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Malaysia |
Where can I find the LM2991S/NOPB datasheet?
LM2991S/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM2991S/NOPB?
Compatible alternatives and drop-in replacements for LM2991S/NOPB:
Regulator, 3V Min, 24V Max, 1V Dropout, BIPolar, PSSO5
Frequently Asked Questions
What is the dropout voltage of the LM2991S/NOPB?
The LM2991S/NOPB has a typical dropout voltage of 0.6V and a maximum of 1V. This low dropout characteristic allows the device to maintain regulation even when the input-to-output voltage differential is small, making it suitable for efficient power designs.
What is the maximum input voltage supported by the LM2991S/NOPB?
The LM2991S/NOPB supports a maximum input voltage of 26V, giving designers flexibility across a wide range of negative supply applications including industrial and bench-top equipment operating from higher voltage rails.
What package does the LM2991S/NOPB come in, and is it RoHS compliant?
The LM2991S/NOPB is available in a TO-DPAK (PSSO-5) surface-mount package. It is fully RoHS compliant and Pb-free, meeting JESD-609 e3 requirements, making it suitable for modern lead-free manufacturing processes.
What are typical applications for the LM2991S/NOPB?
Typical applications include negative rail generation for op-amp circuits, analog front-end supplies, audio equipment, industrial control systems, and any design requiring a stable adjustable negative output voltage with low dropout from a Texas Instruments component priced from $2.76.
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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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