LP3992IMFX-1.5/NOPB

The LP3992 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise, and low quiescent current. Battery life is prolonged by the ability of the LP3992 to provide a 1.5-V output from the low input voltage of 1.9 V. Additionally, when switched to a shutdown mode via a logic signal at the enable (EN) pin, the power consumption is reduced to virtually zero. The LP3992 also features shortcircuit and thermal-shutdown protection. The LP3992 is designed to be stable with spacesaving ceramic capacitors as small as 1 μF. Performance is specified for a -40°C to +125°C temperature range.

Applications

• GSM Portable Phones
• CDMA Cellular Handsets
• Wideband CDMA Cellular Handsets
• Bluetooth Devices
• Portable Information Appliances

Key features

• Input Voltage: 1.9 V to 5.2 V
• Operation From a Low Input Voltage: 1.9 V
• Accurate Output Voltage: 1.5 V ± 0.09 V
• Quiescent Current in Shutdown: < 1.5 μA
• Stable With an Output Capacitor: 1 μF
• Ensured Output Current: 30 mA
• Low Output Voltage Noise: 300 μVRMS
• Low Quiescent Current: 29 μA Typical
• Stable With a Ceramic Capacitor
• Logic Controlled Enable
• Fast Turnon and Turnoff
• Thermal-Overload and Short-Circuit Protection
• -40°C to +125°C Junction Temperature Range