SP6203_6205_en.pdf

1Date: 05/25/04 SP6203/6205 Low Noise, 300 and 500mA CMOS LDO Regulators ? Copyright 2004 Sipex Corporation ■ Very Low Dropout Voltage: 0.6? PMOS Pass Device■ Accurate Output Voltage: 2% over Temperature■ Guaranteed 500mA Output Current: SP6205■ Ultra Low Noise Output: 12μVRMS with 10nF Bypass■ Unconditionally Stable with 2.2μF Ceramic■ Low Quiescent Current: 45μA■ Very Low Ground Current: 350μA at 500 mA■ Power-Saving Shutdown Mode: 1μA■ Fast Turn-On and Turn-Off: 60us■ Fast Transient Response■ Current Limit and Thermal Shutdown Protection■ Very Good Load/Line Regulation: 0.07/0.04%■ Excellent PSRR: 67dB1kHz■ Industry Standard 5 pin SOT-23 and Small 8 pin DFN Package■ Fixed Output Voltages: 2.5V, 2.7V, 2.8V, 2.85V, 3.0V and 3.3V■ Adjustable Output Available Low Noise, 300mA and 500mA CMOS LDO Regulators SP6203/6205 DESCRIPTION ■ Cellular / GSM Phones■ Laptop / Palmtop Computers■ Battery-Powered Systems■ Pagers■ Medical Devices■ MP3/CD Players■ Digital Still Cameras FEATURES APPLICATIONS ? The SP6203/6205 are ultra low noise CMOS LDOs with very low dropout and ground current. The noise performance is achieved by means of an external bypass capacitor without sacrificing turn-on and turn-off speed critical to portable applications. Extremely stable and easy to use, these devices offer excellent PSRR and Line/Load regulation. Target applications include battery-powered equipment such as portable and wireless products. Regulators ground current increases only slightly in dropout. Fast turn-on/turn-off enable control and an internal 30? pull down on output allows quick discharge of output even under no load conditions. Both LDOs are protected with current limit and thermal shutdown. Both LDOs are availiable in fixed adjustable output voltage versions and come in an industry standard 5 pin SOT-23 and small 8 pin DFN package. For SC-70 100mA CMOS LDO, SP6213 is available. TYPICAL APPLICATION CIRCUIT 3 2 1 C OUT 2.2μF Ceramic V OUT V IN EN BYP 4 5 SP6203 SP6205 5-Pin FIX