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GENERAL DESCRIPTION

The Calogic CLM5205 is a low noise, low dropout voltage regulator featuring ultra low ground current (800uA at 100mA output) and tighter than 1 initial accuracy with a logic compatible ON/OFF switching input. Designed for hand-held battery powered devices, the CLM505 is switched by a CMOS or TTL compatible logic signal. When disabled, power consumption drops nearly to zero. Prolonging battery life, the ground current of the CLM5205 increases only slightly in dropout. Major features of the CLM5205 include a reference bypass pin for excellent low-noise performance, protection against reversed battery, current limiting, and overtemperature shutdown.

FEATURES

? Ultra-Low Noise Output

? High Output Voltage Accuracy

? Guaranteed 150mA Output

? Low Quiescent Current

? Low Dropout Voltage

? Extremely Tight Load and Line Regulation

? Very Low Temperature Coefficient

? Current and Thermal Limiting

? Reverse-Battery Protection

? Zero OFF-Mode Current

? Logic-Controlled Electronic Enable

APPLICATIONS

? Cellular Telephones

? Laptop, Notebook, and Palmtop Computers

? Battery Powered Equipment

? PCMCIA VCC and VPP Regulation/Switching

? Consumer/Personal Electronics

? SMPS Post-Regulator/ DC toDC Modules

? High Efficiency Linear Power Supplies