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| Preliminary EUP7522 Dual, 600mA LDO Regulator DESCRIPTION The EUP7522 is an efficient, precise dual-channel CMOS LDO regulator with very-low dropout voltage and low ground current. Both regulator outputs are capable of sourcing 600mA of output current. The EUP7522's performance is optimized for CD/DVD -ROM, CD/RW or wireless communication supply applications, The EUP7522 regulators are stable with output capacitors as low as 2.2 g F. Key features include current limit, thermal shutdown, fast transient response, high output accuracy, and high ripple rejection ratio. The EUP7522 regulator is available in a fixed 3.3V/2.5V output voltage configuration. FEATURES Low Quiescent Current (Typically 130g A) Guaranteed 600mA Output Current Low Dropout Voltage:600mV at 600mA Wide Operating Voltage Ranges : 2.5V to 5.5V Ultra-Fast Transient Response Tight Load and Line Regulation Current Limiting Protection Thermal Shutdown Protection Only low-ESR Ceramic Capacitors Required for Stability Available in SOP-8 Package RoHS Compliant and 100% Lead (Pb)-Free APPLICATIONS CD/DVD-ROM, CD/RW Wireless LAN Card/Keyboard/Mouse Battery-Powered Equipment XDSL Router Typical Application Circuit Figure 1. DS7522 Ver 0.5 March. 2006 1 Preliminary Pin Configurations Part Number Pin Configurations EUP7522 EUP7522 SOP-8 Pin Description PIN 1 2,3 4 5,6,7,8 PIN NAME VOUT1 VIN VOUT2 GND Regulator A Output Power Input Regulator B Output Ground DESCRIPTION Block Diagram Figure 2. DS7522 Ver 0.5 March. 2006 2 Preliminary Ordering Information Order Number EUP7522-3.3/2.5DIR1 EUP7522-3.3/2.5DIR0 Package Type SOP-8 SOP-8 Marking xxxx EUP7522 I xxxx EUP7522 I EUP7522 Operating Temperature range -40 C to 85C -40 C to 85C * For other output voltage options, contact EUT marketing. EUP7522 1/4 /1/4 1/4 1/4 1/4 1/4 Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard Package Type D: SOP Output Voltage Option DS7522 Ver 0.5 March. 2006 3 Preliminary Absolute Maximum Ratings u u EUP7522 u u u u Supply Input Voltage --------------------------------------------------------------------------------------- 6V Package Thermal Resistance SOP-8, JC -------------------------------------------------------------------------------------------------- 15.7C/W Lead Temperature (Soldering,10 sec .) -------------------------------------------------------------------- 260C Junction Temperature ---------------------------------------------------------------------------------------- 150C Storage Temperature Rang, Tstg -------------------------------------------------------------------------- -65C to 150C ESD Susceptibility HBM ---------------------------------------------------------------------------------------------------------- 2kV MM ----------------------------------------------------------------------------------------------------------- 200V Recommended Operating Conditions u Supply Input Voltage -------------------------------------------------------------------------------------- 2.5V to 5.5V u Junction Temperature ------------------------------------------------------------------------------------- -40C to 125C Electrical Characteristics Unless otherwise noted these specifications apply over full temperature, CIN=2.2F, COUT1=2.2F , COUT2=2.2F, TJ=0 to 125C. Typical values refer to TJ=25C. Symbol VIN OTS Parameter Input voltage Over Temperature Shutdown Over Temperature Shutdown Hysteresis Output Voltage Temperature Coefficient Quiescent Current Conditions EUP7522 Min Typ Max. 2.5 150 5.5 Unit V C C ppm/C A Hysteresis 20 40 TC IQ IOUT1=300mA, IOUT2=300mA IOUT1=0mA, IOUT2=0mA VIN=5V VIN=VOUT+ 1V VIN=VOUT+ 1V VOUT+ 1V V mA mA mV mV dB mV F Ohm REGLINE Line Regulation REGLOAD Load Regulation PSRR VDROP COUT Ripple Rejection Dropout Voltage (Note 1) Output Capacitor ESR DS7522 Ver 0.5 March. 2006 4 Preliminary Electrical Characteristics( Cont.) EUP7522 Unless otherwise noted these specifications apply over full temperature, CIN=2.2F, COUT1=2.2F , COUT2=2.2F, TJ=0 to 125C. Typical values refer to TJ=25C. Symbol Regulator 2 VOUT ILIMIT IOUT Parameter Output voltage Circuit Current Limit Load Current VIN=5V Conditions EUA7522 Min Typ Max. VOUT-2% 600 1.5 20 62 600 2.2 4 40 2.5 900 VOUT+2% Unit V mA mA mV mV dB mV F Ohm VIN=VOUT+ 1V VIN=VOUT+ 1V VOUT+ 1V ESR 0.01 0.1 1 Note 1: dropout voltage definition : VIN-VOUT when VOUT is 2% below the value of VOUT for VIN=VOUT+ 1V DS7522 Ver 0.5 March. 2006 5 Preliminary Typical Operating Characteristics EUP7522 DS7522 Ver 0.5 March. 2006 6 Preliminary EUP7522 DS7522 Ver 0.5 March. 2006 7 Preliminary Application Information Input Capacitor A minimum input capacitance of 2.2F is required between the EUP7522 input pin and ground (the amount of the capacitance may be increased without limit).This capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. No-Load Stability The EUP7522 will remain stable and in regulation with no external load. This is specially important in CMOS RAM keep-alive applications. Output Capacitance The EUP7522 is specifically designed to employ ceramic output capacitors as low as 2.2F. Ceramic capacitors below 10F offer significant cost and space savings, along with high frequency noise filtering. Higher values and other types and of capacitor may be used, but their equivalent series resistance (ESR) should be maintained below 0.5. Ceramic capacitor of the value required by the EUP7522 are available in the following dielectric types: Z5U, Y5V, X5R, and X7R. The Z5U and Y5V types exhibit a 50% or more drop in capacitance value as their temperature increase from 25C, an important consideration. The X5R generally maintain their capacitance value within 20%. The X7R type are desirable for their tighter tolerance of 10% over temperature. EUP7522 Power Dissipation and Junction Temperature Specified regulator operation is assured to a junction temperature of 125C; the maximum junction temperature should be restricted to 125C under normal operating conditions. This restriction limits the power dissipation the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the maximum allowable dissipation, PD(max), and the actual dissipation, PD, which must be less than or equal to PD(max) The maximum-power-dissipation limit is determined using the following equation: P T max - T A =J D(max) R JA Where: TJMAX is the maximum allowable junction temperature. RJA is the thermal resistance junction-to-ambient for the package TA is the ambient temperature. The regulator dissipation is calculated using: PD=(VI-VO) x IO Power dissipation resulting from quiescent current is negligible. Excessive power dissipation triggers the thermal protection circuit. DS7522 Ver 0.5 March. 2006 8 Preliminary Packaging Information EUP7522 X Y Z Standard Solder Map Symbols A B C D E H F L1 L2 M N Dimension in Millimeters Min. Max. 4.80 5.00 5.80 6.20 3.80 4.00 1.194 1.346 1.45 1.55 0.00 0.10 0.33 0.51 0.19 0.25 0.40 1.27 0 8 40 50 Dimension in Inches Min. Max. 0.189 0.197 0.228 0.244 0.150 0.157 0.047 0.053 0.057 0.061 0.000 0.004 0.013 0.020 0.007 0.010 0.016 0.050 0 8 40 50 8 - Lead SOP Plastic Package DS7522 Ver 0.5 March. 2006 9 |
Price & Availability of EUP7522-33DIR0
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