LM2950-3.3

The LM2950/1 is a low power voltage regulator. This device excellent choice for use in battery powered application such as cordless telephone, radio control systems, and portable computers. The LM2950/1 features very low quiescent current (75㎂ Typ.) and very low drop output voltage (Typ. 400㎷ at light load and 380 mV at 100㎃). This includes a tight initial tolerance of 0.5% Typ., extremely good load and line regulation of 0.05% Typ., and very low output temperature coefficient, making the LM2950/1 useful as a low-power voltage reference. The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature is the logic-compatible shutdown input which enable the regulator to be switched on and off. The LM2950/1 is available in 8-pin plastic packages. The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts with external pair of resistors. The LM2950/1 is offered in 3-pin to-92 package compatible with other fixed regulator.

Applications

• High-efficiency linear regulator, voltage reference
• Battery powered systems
• Portable consumer equipment
• Portable / Parm, Desktop / Notebook computers
• Portable Instrumentation, cordless telephones
• Automotive Electronics, Radio control systems
• SMPS Post-Regulator

Key features

• High accuracy output voltage
• Guaranteed 100 mA output
• Very low quiescent current
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Low dropout voltage
• Need only 1uF for stability
• Error flag warns of output dropout
• Logi-control electronic shutdown
• Output programmable from 1.24 to 29V
• Moisture Sensitivity Level 3