National Semiconductor LP5900SDX-1.8
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.20 | $1.20 |
| 15+ | $0.28 | $4.20 |
| 25+ | $0.27 | $6.75 |
| 50+ | $0.26 | $13.00 |
| 100+ | $0.23 | $23.00 |
| N+ | $0.05 | 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) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| 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 | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-WSON (2.2x2.5) |
The LP5900SDX-1.8 is a high-performance fixed 1.8V LDO from National Semiconductor, delivering 150mA. It features an ultra-low dropout of 0.15V at full load and excellent PSRR of 85dB at 100Hz, making it ideal for noise-sensitive analog and RF applications. The compact 6-WSON package (2.2x2.5mm) suits space-constrained designs.
- Exceptional PSRR: 85dB at 100Hz ensures clean output for RF/analog.
- Ultra-Low Dropout: 0.15V at 150mA maximizes efficiency.
- Miniature Package: 6-WSON (2.2x2.5mm) for compact PCBs.
- Low Quiescent Current: 50 µA balances performance and battery life.
RF Transceiver Power
With 85dB PSRR at 100Hz, it provides an exceptionally clean 1.8V rail for RF front-ends, reducing spurious emissions.
Audio Codec Supply
Low dropout of 0.15V and high PSRR make it ideal for high-fidelity audio DACs and codecs.
Precision ADC Reference
The low noise and stable 1.8V output ensure accurate conversions in data acquisition systems.
Wearable Devices
The tiny 6-WSON package (2.2x2.5mm) fits smartwatches and fitness trackers.
FPGA Auxiliary Rail
Powers auxiliary 1.8V rails in FPGAs with minimal voltage drop from a 2.0V source.
Optical Modules
Provides clean power for laser drivers in SFP transceivers, ensuring signal integrity.
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum output current?
- A: 150mA.
- Q: What is the input voltage range?
- A: Not specified in provided data.
- Q: What is the dropout voltage?
- A: 0.15V at 150mA.
- Q: What is the quiescent current?
- A: 50 µA.
- Q: What is the PSRR?
- A: 85dB at 100Hz to 40dB at 100kHz.
LP5900SDX-1.8.pdf
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum output current?
- A: 150mA.
- Q: What is the input voltage range?
- A: Not specified in provided data.
- Q: What is the dropout voltage?
- A: 0.15V at 150mA.
- Q: What is the quiescent current?
- A: 50 µA.
- Q: What is the PSRR?
- A: 85dB at 100Hz to 40dB at 100kHz.
