Key facts
- Model
- LP5900
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-05
Start here
National semiconductor LP5900 Ultra Low Noise 100 mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor handbook
The LP5900 is a linear regulator capable of supplying 100 mA output current, designed specifically for RF and analog circuits. It provides low noise, high PSRR, low quiescent current, and low line transient response figures. A key feature is its ability to operate without a noise bypass capacitor, utilizing new innovative design techniques to achieve class-leading device noise performance.
Read onlineNational Semiconductor LP5900 specifications
| Input voltage range | 2.5V to 5.5V |
|---|---|
| Output voltage range | 1.5V to 3.3V |
| PSRR at 1 kHz | 85 dB |
| Output voltage tolerance | + 2% |
| Quiescent current (enabled) | 25 uA |
| Startup time | 150 us |
| Low dropout voltage | 80 mV typ. |
| Operating temperature range | -40°C to +125°C |
| Package type | 4-Bump micro SMD |
All National Semiconductor LP5900 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
Does the LP5900 require a bypass capacitor?
No, the LP5900 offers class-leading device noise performance without a noise bypass capacitor.
What capacitors are recommended for the LP5900?
The device is designed to work with 0.47 uF input and output ceramic capacitors.
Does the LP5900 require a noise bypass capacitor?
No, the LP5900 is designed to operate without a noise bypass capacitor.
From: National Semiconductor LP5900 Linear Regulator Datasheet
What external capacitor is recommended for the input pin?
A 0.47 µF ceramic capacitor should be connected between the input pin and ground.
From: National Semiconductor LP5900 Linear Regulator Datasheet