LP3991TL-2.8 Texas Instruments Integrated Circuit (Other) In Stock
LP3991TL-2.8 is a fixed 2.8V low-dropout linear voltage regulator from Texas Instruments. Features 75mV typical dropout voltage, 3.3V–4V input range, and ultra-compact 4-ball BGA package. Ideal for portable and battery-powered applications requiring stable low-noise power supply.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- LP3991TL-2.8 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LP3991TL-2.8?
- Fixed 2.8V output with tight regulation accuracy for stable power delivery
- Ultra-low 75mV typical dropout voltage (160mV max) enabling efficient LDO operation
- Wide input voltage range of 3.3V to 4V with 6.5V absolute maximum rating
- Ultra-compact R-PBGA-B4 (4-ball BGA) package for space-constrained designs
- Line regulation of 0.0084% max ensuring consistent output under varying input conditions
What is LP3991TL-2.8 used for?
The LP3991TL-2.8 is well-suited for portable consumer electronics, wearables, and IoT devices that require a stable 2.8V rail from a lithium-ion or Li-polymer battery. Its ultra-low dropout voltage makes it ideal for battery-powered systems where maximizing battery life and minimizing power loss are critical. It also serves RF front-end modules, sensors, and camera modules that demand low-noise, tightly regulated supply voltages in minimal board space.
What are the specifications of LP3991TL-2.8?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.16V |
| Dropout Voltage1-Nom | 0.075V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 4V |
| Input Voltage-Min | 3.3V |
| JESD-30 Code | R-PBGA-B4 |
| JESD-609 Code | e1 |
| Line Regulation-Max | 0.0084% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 2.884V |
| Output Voltage1-Min | 2.716V |
| Output Voltage1-Nom | 2.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA4,2X2,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | TIN SILVER COPPER |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 3% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LP3991TL-2.8 datasheet?
LP3991TL-2.8 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP3991TL-2.8?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage of the LP3991TL-2.8?
The LP3991TL-2.8 provides a fixed 2.8V output voltage. It is a non-adjustable (fixed) linear regulator, so no external resistor divider is required to set the output. This simplifies the design and reduces component count in space-constrained applications.
What is the dropout voltage of the LP3991TL-2.8?
The LP3991TL-2.8 features a typical dropout voltage of 75mV and a maximum dropout voltage of 160mV. This low dropout characteristic allows the regulator to operate with an input voltage as low as approximately 2.875V above ground while maintaining the 2.8V regulated output, making it highly efficient in battery-powered systems.
What package does the LP3991TL-2.8 use, and what is the input voltage range?
The LP3991TL-2.8 is housed in a JESD-30 R-PBGA-B4 package, which is a 4-ball BGA (ball grid array) — an extremely compact footprint ideal for wearables and miniaturized designs. Its operating input voltage range is 3.3V to 4V, with an absolute maximum of 6.5V.
Can the LP3991TL-2.8 be used in battery-powered IoT or wearable devices?
Yes, the LP3991TL-2.8 is an excellent choice for IoT nodes, wearables, and portable electronics. Its ultra-low 75mV typical dropout voltage extends battery life by minimizing the voltage headroom required. The tiny 4-ball BGA package saves board space, and the fixed 2.8V output is compatible with many RF, sensor, and microcontroller power rails commonly used in these applications.
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Why Buy from FindMyChip
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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