LP5900 Datasheet | National Semiconductor

Description The LP5900 is a linear regulator capable of supplying 100 m A 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 m A 6.5 µVRMS 85 d B at 1 k Hz ± 2% < 1 µA 25 µA 150 µs 80 m V 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 range for n PDA handsets . operation n Wireless LAN devices Features Package 1.057 mm x 1.083 mm e Data She Typical Application Circuit . © 2005 National Semiconductor Corporation DS201441 .national. .. Connection Diagrams 4-Bump Thin micro SMD Package, Large Bump NS Package Number TLA04 The actual physical placement of the package marking will vary from part to part. Pin Descriptions Pin # A1 Symbol VEN Name and Function Enable input; disables the regulator when ≤ 0.4V. Enables the regulator when ≥ 1.2V. An internal 1 MΩ pulldown resistor connects this input to ground. mon ground Output voltage. A 0.47 µF Low ESR capacitor should be connected to this Pin. Connect this output to the load circuit....