LP3990TL-2.8

National Semiconductor is now part of Texas Instruments. Search http://www.ti.com/ for the latest technical information and details on our current products and services. LP3990 150mA Linear Voltage Regulator for Digital Applications General Description Key Specifications The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise, and low quiescent current. The LP3990 will provide a 0.8V output from the low input voltage of 2V at up to 150mA load current. When switched into shutdown mode via a logic signal at the enable pin, the power consumption is reduced to virtually zero. The LP3990 is designed to be stable with space saving ceramic capacitors as small as 1.0µF. Performance is specified for a -40°C to 125°C junction temperature range. For output voltages other than 0.8V, 1.2, 1.35V, 1.5V, 1.8V, 2.5V, 2.8V, or 3.3V please contact your local NSC sales office. ■ ■ ■ ■ ■ ■ ■ ■ ■ Features ■ ■ ■ ■ ■ 1% Voltage Accuracy at Room Temperature Stable with Ceramic Capacitor Logic Controlled Enable No Noise Bypass Capacitor Required Thermal-Overload and Short-Circuit Protection Input Voltage Range Output Voltage Range Output Current Output Stable - Capacitors Virtually Zero IQ (Disabled) Very Low IQ (Enabled) Low Output Noise PSRR Fast Start Up 2.0 to 6.0V 0.8 to 3.3V 150mA 1.0uF