SSPP66220033 // SSPP66220055 330000mmAA//550000mmAA LLooww NNooiissee CCMMOOSS LLDDOO RReegguullaattoorrss April 2012 Rev. 2.0.0 GENERAL DESCRIPTION APPLICATIONS The SP6203 and SP6205 are ultra low noise Battery-Powered Systems CMOS LDOs with very low dropout and ground Medical Equipments current. The noise performance is achieved by MP3/CD Players means of an external bypass capacitor without sacrificing turn-on and turn-off speed critical Digital Cameras to portable applications. Extremely stable and easy to use, these devices offer excellent PSRR and Line/Load regulation. Target FEATURES applications include battery-powered 300mA/500mA Output Current equipment such as portable and wireless SP6203: 300mA SP6205: 500mA products. Regulators ground current increases only slightly in dropout. Fast turn-on/turn-off Low Dropout Voltage: 0.6 PMOS FET enable control and an internal 30 pull down 2.7V to 5.5V Input Voltage on output allows quick discharge of output Fixed and Adjustable Output Voltage even under no load conditions. Both LDOs are protected with current limit and thermal Accurate Output Voltage: 2% over Temp. shutdown. 67dB Power Supply Rejection Ratio Both LDOs are available in fixed & adjustable 12V Low Output Noise RMS output voltage versions and come in an industry standard 5-pin SOT-23 and small Unconditionally Stable with 2.2F 2X3mm 8-pin DFN packages. For SC-70 Ceramic 100mA CMOS LDO, SP6213 is available. Low Quiescent Current: 5A Low Ground Current: 350A at 500mA Fast Turn-On and Turn-Off: 60S Very Good Load/Line Regulation: 0.07/0.0 % Current Limit and Thermal Protection RoHS Compliant Green/Halogen Free 5-Pin SOT23 and 8-Pin DFN Packages TYPICAL APPLICATION DIAGRAM Fig. 1: SP6203/SP6205 Application Diagram Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 SSPP66220033 // SSPP66220055 330000mmAA//550000mmAA LLooww NNooiissee CCMMOOSS LLDDOO RReegguullaattoorrss ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Input Voltage Range V .......................... +2.7V to +5.5V IN the device at these ratings or any other above those Enable Input Voltage V ................................0 to 5.5V EN indicated in the operation sections of the specifications Junction Temperature Range ................. -40C to +125C below is not implied. Exposure to absolute maximum Thermal Resistance ...................................................... rating conditions for extended periods of time may affect SOT-23-5 ( ) .............................................191C/W JA reliability. DFN-8 ( ) ................................................... 59C/W JA V .............................................................. -2V to 6.0V IN Output Voltage V ...............................-0.6V to V +1V OUT IN Note 1: Maximum power dissipation can be calculated Enable Input Voltage V .............................-2V to 6V EN using the formula: PD = (T (max) - T ) / , where J A JA Storage Temperature .............................. -65C to 150C T (max) is the junction temperature, T is the ambient J A 1 Power Dissipation ............................... Internally Limited temperature and is the junction-to-ambient thermal JA resistance. is 6C/W for this package. Exceeding the JC Lead Temperature (Soldering, 5 sec) ................... +260C maximum allowable power dissipation will result in Junction Temperature ........................................ +150C excessive die temperature and the regulator will go into thermal shutdown mode. ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Junction Temperature of T = 25C only limits applying over the full J Operating Junction Temperature range are denoted by a . Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T = 25C, and are provided for J reference purposes only. Unless otherwise indicated, V = (V + 0.5V) to 6V, C = 2.2F, C = 2.2F and I = 100A, IN OUT IN OUT OUT T = 40C to 85C. J Parameter Min. Typ. Max. Units Conditions Input Voltage 6 V Output Voltage +2 % Variation from specified V -2 OUT Output Voltage 50 ppm/C V /T OUT 2 Temperature Coefficient Reference Voltage 1.25 1.275 V Adjustable version only 1.225 Line Regulation 0.04 0.3 %/V V (V below 6V) OUT IN 0.07 0.3 I = 0.1mA to 300mA (SP6203) 3 OUT Load Regulation % 0.13 0.5 I = 0.1mA to 500mA (SP6205) OUT 0.06 I = 0.1mA OUT 60 IOUT = 100mA 4 120 Dropout Voltage for V 3.0V mV I = 200mA OUT OUT 180 300 I = 300mA (SP6203) OUT 300 500 I = 500mA (SP6205) OUT 45 100 I = 0.1mA (I ) OUT QUIESCENT 110 I = 100mA OUT 5 Ground Pin Current 175 A IOUT = 200mA 235 330 I = 300mA (SP6203) OUT 350 490 I = 500mA (SP6205) OUT Shutdown Supply Current 0.01 1 A V < 0.4V (shutdown) EN A 0.50 0.8 V = 0V (SP6203) 0.33 OUT Current Limit 0.85 1.4 V = 0V (SP6205) 0.55 OUT Thermal Shutdown Junction 170 C Regulator Turns off Temperature Thermal Shutdown Hysteresis 12 C Regulator turns on again at 158C Power Supply Rejection Ratio 67 dB f1kHz 150 C = 10nF, I = 0.1mA BYP OUT 630 C = 10nF, I = 300mA 6 BYP OUT Output Noise Voltage V RMS 12 CBYP = 10nF, IOUT = 0.1mA 50 75 C = 10nF, I = 300mA BYP OUT 7 Thermal Regulation V /P 0.05 %/W OUT D 8 10 Wake-Up Time (T ) V 4V WU IN 25 50 S (from shutdown mode) I = 30mA OUT 2012 Exar Corporation 2/14 Rev. 2.0.0