National Semiconductor LP3999ITLX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.76 | $1.76 |
| 15+ | $0.40 | $6.00 |
| 25+ | $0.40 | $10.00 |
| 50+ | $0.37 | $18.50 |
| 100+ | $0.33 | $33.00 |
| N+ | $0.07 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.1V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 200 µA |
| PSRR | 60dB ~ 50dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 5-WFBGA, DSBGA |
| Supplier Device Package | 5-DSBGA (1.5x1.2) |
The National Semiconductor LP3999ITLX-3.3 is a fixed 3.3V low dropout linear regulator delivering up to 150mA of output current. It features an ultra-low dropout voltage of 0.1V at full load, ensuring high efficiency in battery-powered systems. With a low quiescent current of 150 µA and excellent PSRR, it provides clean and stable power for sensitive electronics. The device is available in a compact 5-DSBGA package.
- Ultra-Low Dropout: The 0.1V dropout at 150mA minimizes power loss and extends battery runtime.
- High PSRR: 60dB at 1kHz provides excellent noise filtering for sensitive analog and RF circuits.
- Low Quiescent Current: The 150 µA quiescent current is ideal for always-on applications.
- Miniature Package: The 5-DSBGA (1.5x1.2) package is perfect for space-constrained designs.
Battery-Powered Consumer Electronics
The LP3999ITLX-3.3 provides a stable 3.3V rail for portable consumer devices, with an ultra-low dropout of 0.1V at 150mA to maximize battery life.
Wireless Connectivity Modules
With 60dB PSRR at 1kHz, this regulator ensures clean power for Wi-Fi, Bluetooth, and Zigbee modules, reducing packet errors and improving range.
Sensor Interfaces
For 3.3V sensor systems, this LDO offers low noise and high accuracy, ensuring precise signal conditioning for temperature, pressure, and motion sensors.
Microcontroller Power Supply
It is an ideal choice for powering 3.3V microcontrollers in embedded systems, providing reliable and stable operation.
Wearable Health Monitors
The compact 5-DSBGA package and low quiescent current make it perfect for wearable health devices that require long battery life and minimal space.
- Q: What is the output voltage of the LP3999ITLX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.5x1.2) package.
- Q: What is the output voltage of the LP3999ITLX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.5x1.2) package.

LP3999ITLX-3.3/NOPB.pdf