LM2950中文资料泰进数据手册PDF规格书

DESCRIPTION

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㎷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.

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

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, Avionics