描述 Description

The LP2950 and LP2951 are low power voltage regulators. These devices are an excellent choice for use in battery powered application such as cordless telephones, radio control systems and portable computers. The LP2950 and LP2951 feature low quiescent current and low dropout voltage (typical 50mV at light load and 380mV at 100mA). This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and very low output temperature coefficient (20 ppm/oC typical), making the LP2950/LP2951 useful as a low power voltage reference.
The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling input voltage. The logic-compatible shutdown feature enables the regulator to be switched on and off. The LP2950 is offered in a 3-pin TO-92 package compatible with other 5V, 3.3V regulators. The LP2951 is available in an 8-lead SOIC package.

特性 Features

·5.0V and 3.3V versions at 100mA output
·Very low quiescent current
·Low dropout voltage: 380mV at 100mA
·Extremely tight load and line regulation
·Very low temperature coefficient
·Current and thermal limiting
·Need only 1 uF for stability
·Error flag warns of output dropout
·Logic controlled electronic shutdown
·5.0V part allows adjustable output from 1.25V to 29V

應用 Application

Design ToolsPackagingPkg CodeDetailsQuantitiesDimensionsPDFNSOIC8·JEDEC Reference: MS-012
·MSL Pb-Free: L1 @ 260oC
·MSL SnPb Eutectic: n/a
·ThetaJA: 128.4oC/W (std); 96.8oC/W (fused)