LP3991TL-1.2 Texas Instruments Integrated Circuit (Other) In Stock
LP3991TL-1.2 is a fixed 1.2V ultra-low dropout linear voltage regulator with 300mA output current, 180mV max dropout, and 6.5V max input. Ideal for portable and battery-powered applications. Available in compact 4-ball BGA package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- LP3991TL-1.2 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-1.2?
- Fixed 1.2V output voltage with tight regulation accuracy
- Ultra-low dropout voltage: 180mV max, 450mV typical at full load
- Wide input voltage range: 1.65V to 3.6V (6.5V absolute max)
- Low line regulation: 0.0228% max for stable output
- Compact R-PBGA-B4 (4-ball BGA) package for space-constrained designs
- RoHS compliant (JESD-609 Code e1) for green/eco applications
What is LP3991TL-1.2 used for?
The LP3991TL-1.2 is designed for portable consumer electronics, wearables, and IoT devices requiring a stable 1.2V supply from low-voltage battery sources. Its ultra-low dropout characteristic makes it ideal for single-cell Li-ion or multi-cell alkaline battery-powered systems where efficiency and minimal power loss are critical. It is also well-suited for DSP core power rails, microcontroller I/O supplies, and RF module power regulation in compact embedded designs.
What are the specifications of LP3991TL-1.2?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.18V |
| Dropout Voltage1-Nom | 0.45V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 3.6V |
| Input Voltage-Min | 1.65V |
| JESD-30 Code | R-PBGA-B4 |
| JESD-609 Code | e1 |
| Line Regulation-Max | 0.0228% |
| 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 | 1.236V |
| Output Voltage1-Min | 1.164V |
| Output Voltage1-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA4,2X2,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY |
| 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-1.2 datasheet?
LP3991TL-1.2 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP3991TL-1.2?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and maximum output current of the LP3991TL-1.2?
The LP3991TL-1.2 provides a fixed 1.2V output voltage. While the datasheet specifies it as a low-dropout linear regulator optimized for low-voltage applications, it is designed to supply loads typical of portable digital circuits. Its dropout voltage is 180mV max, enabling reliable regulation even when the input voltage is only slightly above 1.2V.
What is the input voltage range for the LP3991TL-1.2?
The LP3991TL-1.2 operates with an input voltage from 1.65V minimum to 3.6V maximum, with an absolute maximum rating of 6.5V. This range makes it compatible with single-cell lithium-ion batteries and 3.3V regulated power rails commonly used in embedded and portable systems.
What package does the LP3991TL-1.2 come in, and is it RoHS compliant?
The LP3991TL-1.2 is available in the R-PBGA-B4 package (4-ball BGA), which is extremely compact and suitable for space-constrained PCB designs. It carries JESD-609 Code e1, confirming it is RoHS compliant and free of restricted hazardous substances, making it suitable for eco-friendly and consumer product applications.
What are typical applications for the LP3991TL-1.2?
The LP3991TL-1.2 is commonly used in portable consumer electronics, IoT sensor nodes, wearable devices, and battery-powered embedded systems. Its low dropout voltage and small BGA footprint make it well-suited for powering DSP cores, microcontroller logic, and RF front-end modules where board space and power efficiency are priorities.
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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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