LP3881 - Uncategorized TEXAS INSTRUMENTS - Free user manual and instructions
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| Product Type | Voltage Regulator (Low Dropout) |
| Brand | Texas Instruments |
| Model | LP3881 |
| Package | SOT-23-5 |
| Dimensions | 2.9 mm x 2.8 mm x 1.1 mm |
| Weight | 0.015 g (approximate) |
| Input Voltage Range | 2.5 V to 5.5 V |
| Output Voltage | Adjustable from 0.8 V to 1.8 V |
| Output Current | Up to 1 A |
| Dropout Voltage (typical) | 120 mV at 1 A |
| Quiescent Current | 3 mA (typical) |
| Shutdown Current | 0.1 µA (typical) |
| Operating Temperature Range | -40°C to +125°C |
| Main Functions | Low dropout regulation, overcurrent protection, thermal shutdown, enable control |
| Maintenance & Cleaning | No routine maintenance; avoid contamination and ESD |
| Safety Precautions | Observe ESD handling, do not exceed absolute maximum ratings |
| Spare Parts & Repairability | Non-repairable; replace if faulty |
| RoHS Status | RoHS compliant, Lead-free |
| Applications | Point-of-load regulation, battery-powered devices, post-regulation |
| Documentation | User manual available in PDF (19 pages) |
Frequently Asked Questions - LP3881 TEXAS INSTRUMENTS
What is the LP3881?
The LP3881 is a low dropout voltage regulator from Texas Instruments capable of delivering up to 1 A of output current with a typical dropout voltage of 120 mV.
What is the input voltage range of the LP3881?
The input voltage range is from 2.5 V to 5.5 V.
How do I set the output voltage?
The output voltage is adjustable using external resistors. The feedback voltage is 0.8 V. Use the formula Vout = 0.8 V * (1 + R1/R2).
What capacitors are recommended for input and output?
A 10 µF ceramic capacitor on the input and a 10 µF ceramic capacitor on the output are recommended for stability.
Does the LP3881 have thermal shutdown?
Yes, it includes thermal shutdown protection that activates when the junction temperature exceeds approximately 160°C.
What is the quiescent current?
The typical quiescent current is 3 mA and it drops to 0.1 µA in shutdown mode.
Can I use the LP3881 in battery-powered applications?
Yes, its low dropout voltage and low quiescent current make it ideal for battery-powered devices.
What package is the LP3881 available in?
It is available in a SOT-23-5 package, which is compact and suitable for space-constrained designs.
How should I handle the LP3881 to avoid damage?
Follow standard ESD precautions: use grounded workstations, anti-static wrist straps, and avoid touching the pins.
Where can I find the full datasheet?
The full datasheet and user manual can be downloaded from Texas Instruments' website or from the product page on notice-facile.com.
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USER MANUAL LP3881 TEXAS INSTRUMENTS
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Product information
Brand : TEXAS INSTRUMENTS
Model : LP3881
Category : Uncategorized