1FEATURES

2? 2.25V to 5.5V Input Voltage Range

? Adjustable Output Voltage Range of 0.5V to

3.3V

? 800mA Output Load Current

? ±2.0% Accuracy over Line, Load, and Full-

Temperature Range from -40°C to +125°C

? Stable with Tiny 10 uF Ceramic Capacitors

? Enable Pin

? Typically Less than 1uA of Ground Pin Current highestwith

Enable Pin Low

? 25dB of PSRR at 100 kHz

? Over-Temperature and Over-Current

Protection

? 8-Pin SO PowerPad and 5-Pin PFM Surface

Mount Packages

APPLICATIONS

? Digital Core ASICs, FPGAs, and DSPs

? Servers

? Routers and Switches

? Base Stations

? Storage Area Networks

? DDR2 Memory

DESCRIPTION

The LP38511-ADJ Fast-Transient Response Low-

Dropout Voltage Regulator offers the highestwith

performance in meeting AC and DC accuracy

requirements for powering Digital Cores. The

LP38511-ADJ 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-ADJ is designed for inputs from the 2.5V,

3.3V, and 5.0V rail, is stable with 10 uF ceramic

capacitors, and has an adjustable output voltage. The

LP38511-ADJ 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.