LP3961EMP-3.3 Texas Instruments Integrated Circuit (Other) In Stock
LP3961EMP-3.3 is a 3.3V fixed-output low-dropout linear regulator from Texas Instruments. It features a 0.24V typical dropout voltage, 7V max input, and 35mA output in a compact SOT-23-5 package. From $1.90, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LP3961EMP-3.3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.9000(MOQ 54)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output with ultra-low 0.24V typical dropout voltage for efficient regulation
- Wide input voltage range of 3.65V to 7V supports battery-powered and USB applications
- Compact SOT-23-5 (EMP) package ideal for space-constrained portable designs
- Low quiescent current and fast transient response for noise-sensitive analog circuits
Applications
The LP3961EMP-3.3 is ideal for portable consumer electronics, IoT sensor nodes, and battery-powered handheld devices requiring a stable 3.3V rail. Its low dropout voltage makes it well-suited for single-cell Li-ion and USB bus-powered applications. It is also used in post-regulation stages of switching power supplies to improve output noise performance.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1999-10-07 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.24V |
| Input Voltage Absolute-Max | 7.5V |
| Input Voltage-Max | 7V |
| Input Voltage-Min | 3.65V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.8A |
| Output Voltage1-Max | 3.399V |
| Output Voltage1-Min | 3.201V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.5mm |
| Terminal Position | DUAL |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and dropout voltage of the LP3961EMP-3.3?
The LP3961EMP-3.3 provides a fixed 3.3V output. Its typical dropout voltage is 0.24V and the maximum is 0.35V, meaning the input voltage must be at least 3.65V to maintain regulation.
What is the input voltage range for the LP3961EMP-3.3?
The LP3961EMP-3.3 accepts an input voltage between 3.65V (minimum for regulation) and 7V (maximum operating), with an absolute maximum rating of 7.5V. This range suits 5V USB, Li-ion, and similar supply rails.
What package does the LP3961EMP-3.3 come in and what are typical applications?
The LP3961EMP-3.3 is housed in a SOT-23-5 (EMP) surface-mount package. It is commonly used in portable consumer electronics, IoT modules, wearable devices, and any application needing a compact, low-noise 3.3V LDO regulator.
Can the LP3961EMP-3.3 replace other 3.3V LDO regulators?
Yes, the LP3961EMP-3.3 is pin-compatible with many SOT-23-5 LDO regulators offering 3.3V fixed output. Always verify dropout voltage, maximum current, and enable/shutdown pin behavior before substituting in an existing design.
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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 |
|---|---|---|
| 54+ | $5.5600 | $300.24 |
| 500+ | $2.1300 | $1065.00 |
| 1000+ | $2.0100 | $2010.00 |
| 10000+ | $1.9000 | $19000.00 |
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