LP5900

www.DataSheet4U.com LP5900 Ultra Low Noise, 100 mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor July 2005 LP5900 Ultra Low Noise, 100 mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor General Description The LP5900 is a linear regulator capable of supplying 100 mA output current. Designed to meet the requirements of RF/Analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass capacitor. The device is designed to work with 0.47 µF input and output ceramic capacitors. (No Bypass Capacitor is required) This device is available with 1.5V, 1.8V, 2.0V, 2.2V, 2.5V, 2.8V, 3.0V, and 3.3V outputs. Please contact your local sales office for any other voltage options. Key Specifications n n n n n n n n n n Input voltage range Output voltage range Output current Low output voltage noise PSRR Output voltage tolerance Virtually zero IQ (disabled) Very low IQ (enabled) Start-up time Low dropout 2.5V to 5.5V 1.5V to 3.3V 100 mA 6.5 µVRMS 85 dB at 1 kHz ± 2% < 1 µA 25 µA 150 µs 80 mV typ. 4-Bump micro SMD n Stable with 0.47 µF Ceramic Input and Output (lead free) Capacitors n No Noise Bypass Capacitor Required n Logic Controlled Enable Applications n Thermal-overload and short-circuit protection n Cellular phones n −40˚C to +125˚C junction temperature rang...