LP38511-1.8

LP38511-1.8 800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag May 14, 2008 LP38511-1.8 800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag General Description The LP38511-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38511-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is guaranteed at ±2.5% over line, load and full temperature range from -40°C to +125°C. The LP38511-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10uF ceramic capacitors, and has a fixed 1.8V output. An Error Flag feature monitors the output voltage and notifies the system processor when the output voltage falls more than 15% below the nominal value. The LP38511-1.8 provides excellent transient performance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive applications such as servers, routers/switches, and base stations. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 2.25V to 5.5V Input Voltage Range 1.8V Fixed Output Voltage 800 mA Output Load Current +/- 2.5% VOUT Accuracy over Line, Load, and FullTemperature Range from -40°C to +125°C Stable with tiny 10 µF ceramic capacitors 0.20% Output Voltage Load Regulation from 10 mA to 800 mA Enable pin Error Flag In...