LP38511 Datasheet | Texas Instruments

FEATURES - 2 2.25V to 5.5V Input Voltage Range - 1.8V Fixed Output Voltage - 800 m A Output Load Current - +/- 2.5% VOUT Accuracy over Line, Load, and Full-Temperature Range from -40°C to +125°C - Stable with tiny 10 µF Ceramic Capacitors - 0.20% Output Voltage Load Regulation from 10 m A to 800 m A - Enable pin - Error Flag Indicates Status of Output Voltage - 1 µA of Quiescent Current in Shutdown - 40d B of PSRR at 100 k Hz - Over-Temperature and Over-Current Protection - DDPAK/TO-263 and PFM Surface Mount Packages DESCRIPTION The LP38511-1.8 Fast-Transient Response Low Dropout Voltage Regulator offers the highestperformance 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 specified 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 10u F 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. APPLICATIONS - Digital Core ASICs, FPGAs, and DSPs - Servers - Routers and Switches - Base Stations - Storage Area Networks - DDR2 Memory Typical Application Circuit VIN ON OFF CIN 10 PF Ceramic ERROR COUT 10 PF Ceramic 10 k: VOUT VERROR Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks...