Texas Instruments LP3985ITLX-2.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 15+ | $0.60 | $9.00 |
| 25+ | $0.59 | $14.75 |
| 50+ | $0.55 | $27.50 |
| 100+ | $0.49 | $49.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 2.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.1V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 250 µA |
| PSRR | 50dB ~ 40dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 5-WFBGA, DSBGA |
| Supplier Device Package | 5-DSBGA (1.41x1.08) |
| ROHS |  |
The Texas Instruments LP3985ITLX-2.8/NOPB is a fixed 2.8V LDO regulator capable of 150mA output. Its standout feature is an ultra-low 0.1V dropout at full load, enabling efficient operation from nearly depleted batteries. The 5-DSBGA package measures just 1.41x1.08mm, ideal for miniaturized designs. Quiescent current is 150µA with 50dB PSRR at 1kHz.
- Minimal Power Loss: 0.1V dropout at 150mA maximizes efficiency in battery-powered systems.
- Space-Saving: 5-DSBGA package reduces footprint by up to 70% vs SOT-23.
- Clean Output: 50dB PSRR at 1kHz filters supply noise for audio and RF circuits.
- Wide Input Range: Operates from 2.8V to 6.0V, compatible with Li-ion and USB sources.
Ultra-Compact Wearables
The 1.41x1.08mm DSBGA package and 0.1V dropout make the LP3985 ideal for smartwatches and fitness bands where PCB area is at a premium and battery voltage is close to the rail.
Mobile Phone Audio Subsystems
With 50dB PSRR at 1kHz, this LDO provides clean power to audio codecs and headphone amplifiers, reducing audible noise and improving signal fidelity.
Bluetooth Low Energy Modules
The low dropout ensures stable 2.8V supply for BLE SoCs even when the Li-ion battery drops to 2.9V, extending operational time.
Portable GPS Receivers
Its small footprint and stable output support GPS front-end circuits, maintaining consistent sensitivity in handheld navigation devices.
Medical Patch Sensors
The tiny package and low dropout enable disposable health patches with continuous glucose or ECG monitoring, powered by thin-film batteries.
IoT End Nodes
For wireless sensor nodes, the LP3985 offers a balance of low dropout and small size, enabling dense PCB layouts in compact enclosures.
- Q: What is the output voltage?
- A: Fixed 2.8V output.
- Q: What is the maximum current?
- A: 150mA.
- Q: What is the input voltage range?
- A: 2.8V to 6.0V (requires 0.1V headroom).
- Q: What is the dropout voltage?
- A: Very low, only 0.1V at 150mA.
- Q: What is the quiescent current?
- A: 150µA typical.
- Q: What package is used?
- A: Ultra-small 5-DSBGA (1.41x1.08mm).
LP3985ITLX-2.8/NOPB.pdf
- Q: What is the output voltage?
- A: Fixed 2.8V output.
- Q: What is the maximum current?
- A: 150mA.
- Q: What is the input voltage range?
- A: 2.8V to 6.0V (requires 0.1V headroom).
- Q: What is the dropout voltage?
- A: Very low, only 0.1V at 150mA.
- Q: What is the quiescent current?
- A: 150µA typical.
- Q: What package is used?
- A: Ultra-small 5-DSBGA (1.41x1.08mm).
