LP38512
www.ti.com
SNOSAU7F – NOVEMBER 2007 – REVISED APRIL 2013
LP38512-1.8 1.5A Fast-Transient Response Low-Dropout...
LP38512
www.ti.com
SNOSAU7F – NOVEMBER 2007 – REVISED APRIL 2013
LP38512-1.8 1.5A Fast-Transient Response Low-Dropout Linear Voltage
Regulator with Error Flag
Check for Samples: LP38512
FEATURES
1
2 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 DDPAK/TO-263 and PFM Surface Mount
Packages
DESCRIPTION
The LP38512-1.8 Fast-Transient Response LowDropout Voltage
Regulator offers the highestperformance 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 specified 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 nominal value. The LP38512-1.8 provides excellent transient performance to meet the demand o...