Texas Instruments LP5900TL-1.9/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.60 | $0.60 |
| 15+ | $0.58 | $8.70 |
| 25+ | $0.57 | $14.25 |
| 50+ | $0.54 | $27.00 |
| 100+ | $0.47 | $47.00 |
| N+ | $0.09 | 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) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.9V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.15V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 50 µA |
| Current - Supply (Max) | 230 µA |
| PSRR | 85dB ~ 40dB (100Hz ~ 100kHz) |
| Control Features | Enable |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 4-WFBGA, DSBGA |
| Supplier Device Package | 4-DSBGA (1x1) |
| ROHS |
The Texas Instruments LP5900TL-1.9/NOPB is a high-performance, low-dropout linear regulator delivering a fixed 1.9V output with up to 150mA of current. Its ultra-low 50µA quiescent current and excellent PSRR (85dB at 100Hz) make it an ideal choice for battery-powered and noise-sensitive applications. Housed in a compact 4-DSBGA (1x1) package, this LDO provides a space-saving solution for portable electronics, RF modules, and precision analog circuits.
- Extended Battery Life: Ultra-low 50µA quiescent current minimizes standby power consumption in portable devices.
- Clean Power Delivery: High PSRR (85dB at 100Hz) effectively filters input noise, ensuring stable operation for sensitive analog and RF circuits.
- Compact Footprint: The 1x1mm DSBGA package saves critical board space in miniaturized designs.
- Low Dropout: 150mV dropout at full load allows operation from a wide range of input voltages, improving efficiency.
Portable Battery-Powered Devices
The LP5900's low 50µA quiescent current and 150mA output make it ideal for extending battery life in wearables, hearing aids, and remote sensors where every microamp matters.
RF and Analog Signal Chains
With PSRR of 85dB at 100Hz and 40dB at 100kHz, this LDO provides clean, stable power to sensitive RF transceivers, PLLs, and high-precision analog-to-digital converters, minimizing noise-induced errors.
Noise-Sensitive Audio Circuits
The high PSRR and low output noise ensure that audio codecs and amplifiers receive a quiet supply rail, preserving signal fidelity in portable audio players and smart speakers.
Microcontroller Power Supply
For low-power MCUs operating at 1.9V, this regulator offers a compact 1x1mm DSBGA solution, saving PCB space in space-constrained IoT modules and smart sensors.
Always-On Domains
The ultra-low quiescent current makes it perfect for always-on memory retention and real-time clock circuits in battery-operated systems, ensuring minimal standby power draw.
Industrial Sensor Interfaces
Its stable 1.9V output and low dropout ensure reliable operation of precision sensor bridges and signal conditioning circuits in industrial monitoring equipment.
- Q: What is the output voltage of the LP5900TL-1.9/NOPB?
- A: The fixed output voltage is 1.9V.
- 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 from 2.5V to 5.5V (based on 1.9V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.15V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 50µA.
- Q: What package is available?
- A: It comes in a 4-DSBGA (1x1) package.
- Q: What is the output voltage of the LP5900TL-1.9/NOPB?
- A: The fixed output voltage is 1.9V.
- 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 from 2.5V to 5.5V (based on 1.9V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.15V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 50µA.
- Q: What package is available?
- A: It comes in a 4-DSBGA (1x1) package.

LP5900TL-1.9/NOPB.pdf