LND4809 Datasheet PDF - Linear Dimensions Semiconductor

GENERAL DESCRIPTION
This series of fixed-voltage monolithic micropower voltage regulators is designed for a wide range of applications. This device is an excellent choice for use in battery-powered application. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.
   
FEATURES
• 400mA output within 2% over
    temperature
• Very low quiescent current
• Low dropout voltage (420mV Typ)
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Unregulated DC input can withstand –
    20V reverse battery and +60V positive
    transients
• Direct replacement for SGS-ThomsonL48XX Series, but has lower ground
    current, higher accuracy of output
    voltage and extremely tight load and
    line regulation. The 5 pin version
    (adjust model) and 4 pin version (fixed
    model) have a shutdown input.
   
APPLICATIONS
• High-efficiency linear regulator
• Battery powered systems
• Portable/palm top/ notebook
    Computers
• Portable consumer equipment
• Portable instrumentation
• Automotive Electronics
• SMPS Post Regulator