National Semiconductor LP3985ITLX-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.80 | $0.80 |
| 15+ | $0.18 | $2.70 |
| 25+ | $0.18 | $4.50 |
| 50+ | $0.17 | $8.50 |
| 100+ | $0.15 | $15.00 |
| N+ | $0.03 | 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 | 50dB ~ 40dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 5-WFBGA, DSBGA |
| Supplier Device Package | 5-DSBGA (1.5x1.2) |
The LP3985ITLX-3.3 is a precision low dropout linear regulator delivering a fixed 3.3V output at up to 150mA. Its ultra-low 0.1V dropout voltage and 150µA quiescent current make it ideal for battery-powered applications. The tiny 5-DSBGA package saves critical board space while providing excellent PSRR for noise-sensitive circuits.
- Extended Battery Life: Ultra-low 0.1V dropout at 150mA allows operation from nearly depleted batteries.
- Compact Footprint: 5-DSBGA (1.5x1.2) package is ideal for space-constrained portable designs.
- Clean Output: 50dB PSRR at 1kHz filters switching noise for sensitive analog loads.
- Low Quiescent Current: 150µA quiescent current minimizes standby power consumption.
Portable Battery-Powered Devices
The low 0.1V dropout at 150mA maximizes battery life by allowing operation close to the battery's end-of-discharge voltage. The 150µA quiescent current is suitable for always-on applications.
RF and Analog Signal Conditioning
With PSRR of 50dB at 1kHz and 40dB at 10kHz, this LDO effectively filters high-frequency noise from switching regulators, ensuring clean power for sensitive RF transceivers and precision analog circuits.
Space-Constrained Wearables
The ultra-compact 5-DSBGA (1.5x1.2) package is ideal for miniaturized designs like smartwatches and fitness trackers where board area is at a premium.
Noise-Sensitive Audio Codecs
The stable 3.3V rail with good PSRR reduces power-supply-induced artifacts in audio codecs and DACs, improving signal-to-noise ratio in portable audio equipment.
Microcontroller Power Supply
Provides a clean, regulated 3.3V supply for low-power MCUs, ensuring reliable operation during sleep and active modes with fast transient response.
- Q: What is the output voltage of the LP3985ITLX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.5x1.2) package.
LP3985ITLX-3.3.pdf
- Q: What is the output voltage of the LP3985ITLX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.5x1.2) package.
