LP2951ACM Description

The LP2951-N are micropower voltage regulators with very low quiescent current (75 μA typ.) and very low dropout voltage (typ. 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP2951-N increases only slightly in dropout, prolonging battery life. The 8-lead LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.

Careful design of the LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

LP2951ACM Features

• 5V, 3V, and 3.3V Versions Available

• High Accuracy Output Voltage

• Ensured 100 mA Output Current

• Extremely Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Use as Regulator or Reference

• Needs Minimum Capacitance for Stability

• Current and Thermal Limiting

• Stable With Low-ESR Output Capacitors (10 mΩ to 6Ω)

LP2951ACM Applications

• 1A Regulator with 1.2V Dropout

• 300mA Regulator with 0.75V Dropout

• Wide Input Voltage Range Current Limiter

• Low Drift Current Source

• 5 Volt Current Limiter

• 2 Ampere Low Dropout Regulator

• Low Battery Disconnect

• System Overtemperature Protection Circuit