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LP38512TS Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LP38512TS Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 14 page  LP38512-1.8 March 6, 2009 1.5A Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag General Description The LP38512-1.8 Fast-Transient Response Low-Dropout Voltage Regulator offers the highest-performance in meeting AC and DC accuracy requirements for powering Digital Cores. The LP38512-1.8 uses a proprietary control loop that enables extremely fast response to change in line conditions and load demands. Output Voltage DC accuracy is guaran- teed at 2.5% over line, load and full temperature range from -40°C to +125°C. The LP38512-1.8 is designed for inputs from the 2.5V, 3.3V, and 5.0V rail, is stable with 10 μF 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 nom- inal value. The LP38512-1.8 provides excellent transient per- formance to meet the demand of high performance digital core ASICs, DSPs, and FPGAs found in highly-intensive ap- plications such as servers, routers/switches, and base sta- tions. Features ■ 2.25V to 5.5V Input Voltage Range ■ 1.8V Fixed Output Voltage ■ 1.5A Output Load Current ■ ±2.5% 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 mA to 1.5A ■ Enable pin ■ Error Flag Indicates Status of Output Voltage ■ 1uA of Quiescent current in Shutdown ■ 40dB of PSRR at 100 kHz ■ Over-Temperature and Over-Current Protection ■ TO-263 and TO-263 THIN Surface Mount Packages Applications ■ Digital Core ASICs, FPGAs, and DSPs ■ Servers ■ Routers and Switches ■ Base Stations ■ Storage Area Networks ■ DDR2 Memory Typical Application Circuit 20183001 © 2009 National Semiconductor Corporation 201830 www.national.com |
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