LP3965EMP-3.3 Texas Instruments In Stock
LP3965EMP-3.3 is a 500mA low-dropout (LDO) linear voltage regulator with a fixed 3.3V output by Texas Instruments. Key specs: 500mA output current, 500mV dropout voltage, ultra-low noise output ideal for RF and analog circuits. From $1.8, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.8000(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output with tight ±1% accuracy for stable system power rails
- Low 500mV dropout voltage at full 500mA load reduces power dissipation
- Ultra-low noise output suitable for noise-sensitive RF and analog applications
- Shutdown pin enables power sequencing and system sleep-mode control
- Compact MSOP-8 package (EMP suffix) saves PCB space in portable designs
Applications
The LP3965EMP-3.3 is well suited for powering mixed-signal and RF subsystems in portable consumer electronics, where its ultra-low noise output prevents interference with sensitive analog front-ends. It is commonly used in handheld instruments, wireless communication modules, and battery-powered IoT devices that require a clean, regulated 3.3V supply. Its shutdown capability also makes it a good fit for power-managed embedded systems that need fine-grained control over peripheral rails.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
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 LP3965EMP-3.3?
The LP3965EMP-3.3 provides a fixed 3.3V output with a maximum continuous output current of 500mA. The output voltage accuracy is ±1% over the full operating temperature range, making it suitable for precision analog and digital supply rails.
What is the dropout voltage of the LP3965EMP-3.3 at full load?
At the maximum output current of 500mA, the LP3965EMP-3.3 has a typical dropout voltage of 500mV. This means the input supply needs to be at least 3.8V to maintain a regulated 3.3V output, which is easily met by standard 5V or Li-ion battery systems.
In what applications is the LP3965EMP-3.3 typically used?
The LP3965EMP-3.3 is typically used in RF modules, wireless transceivers, handheld instruments, IoT sensor nodes, and battery-powered embedded systems. Its ultra-low output noise makes it especially valuable in noise-sensitive analog and communication applications where power supply interference must be minimized.
What package does the LP3965EMP-3.3 come in, and is it RoHS compliant?
The LP3965EMP-3.3 is housed in an MSOP-8 (EMP suffix) package, which offers a small footprint ideal for space-constrained PCB designs. Texas Instruments supplies this part in a RoHS-compliant, lead-free version suitable for modern green electronics manufacturing.
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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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