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sipex SPX1587 3A Low Dropout Voltage Regulator handbook

1. 10 100 1000 10000 100000 1000000 Frequency Hz SPX1587 Figure 5 Ripple Rejection Vin 3 3V Vout 1 8V adj Iload 200mA Figure 6 Current Source Vour V aer 14R 2 R Alan R 2 Note A SPX1587 10uF C improves ripple rejection Z should be R1 at ripple frequency 1 Note A Wann Intended Vo V mear max Figure 7 Typical Adjustable Regulator Figure 8 Improving Ripple Rejection SPX1587 Intended V Note A Vas ur Daou MAX Rp Parasitic Line Resistance Vin Dr SPX1587 Q Vout ADJ Connect R to Case of Regulator Figure 9 5V Regulator with Shutdown Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Figure 10 Recommended Connections for Best Results Copyright 2004 Sipex Corporation PINOUTS TO 252 R TO 220 3 U TO 263 3 T 3 1 2 3 g ADJGND Vor Va Front View Top View ADJGND y y OUT IN Front View Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 6 PACKAGE 3 PIN TO 252 d _ IC SEATING PLANE A1 798 E1 WITH PLATING E1 2 l ET L 2 D1 BASE METAL CONTACT AREA 3 PIN TO 252 Dimensions in inches JEDEC TO 252 AA Variation MIN T NOM T MAX Al 7
2. 3 3V lt Vins 10V 2 5V Version Output Voltage 2 475 2 500 2 525 2 450 2 500 2 550 V lour 10mA Vin 4 5V 2 450 2 550 2 425 2 575 10mA lt lors 3A 4 25V lt Vins 10V 3 3V Version Output Voltage 3 267 3 300 3 333 3 234 3 300 3 366 V lour 10mA Vin 5V 3 234 3 366 3 201 3 399 10mA lt lout lt 3A 4 75V lt Vins 10V 5 0V Version Output Voltage 4 950 5 000 5 050 4 900 5 000 5 100 V lour 10mA Vin 7V 4 900 5 100 4 850 5 150 10mAs lour s 3A 6 50V lt Vins 10V All Voltage Options Reference Voltage 1 238 1 250 1 262 1 225 1 250 1 275 V lour 10mA Vin Vout 2V 1 225 1 275 1 212 1 287 10mAslouts 3A 1 5Vs Vin Vout s 10V Output Voltage 0 3 0 5 Ki Temperature Stability Line Regulation 0 1 0 2 0 1 0 2 Ki 3 0VsVins 10V Vourz1 5V 0 1 0 2 0 1 0 2 3 3VsVins 10V Nour DM 0 1 0 2 0 1 0 2 4 25V lt Vins 10V Vour 2 5V 0 1 0 2 0 1 0 2 4 75V lt Vins 10V Vout 3 3V 0 1 0 2 0 1 0 2 6 50VsVins 10V Vour 5 0V Load Regulation 0 1 0 3 0 1 0 3 10mAslours 3A Vour 1 5V 0 1 0 3 0 1 0 3 10mAslours 3A Vour 1 8V 0 1 0 3 0 1 0 3 10mAslouts 3A Vour 2 5V 0 1 0 3 0 1 0 3 10mAslouts 3A Vour 3 3V 0 1 0 3 0 1 0 3 10mAslouts 3A Vout 5 0V Dropout Voltage 1 00 1 00 V lour 1A Note 2 1 05 1 05 lour 2A 1 10 12 1 10 1 2 lour 3A Minimum Load Current 4 10 4 10 mA Note 4 Quiescent Current 4 10 4 10 mA Fixed voltage versions Adjust Pin Current 50 50 uA 120 120 Current Limit 3 2 5 3 2 5 A Vin Vour 2V Thermal Regulation
3. 0 01 0 1 0 01 0 1 NN 25 C 30mS pulse Ripple Rejection 60 75 60 75 dB Fnippi g2120Hz Viy Vour 22V VnippLez i Ve Long Term Stability 0 03 0 03 Ki 125 C 1000Hrs RMS Output Noise 0 003 0 003 of Vout 10Hz lt f lt 10kHz Thermal Resistance 3 3 C W TO 220 Junction to Case at Tab 60 60 TO 220 Junction to Ambient 3 3 TO 263 Junction to Case at Tab 60 60 TO 263 Junction to Ambient 6 6 TO 252 Junction to Case at Tab 126 126 TO 252 Junction to Ambient Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 2 ELECTRICAL CHARACTERISTICS Continued Notes NOTES Note 1 Output temperature coefficient is defined as the worst case voltage change divided by the total temperature range Note 2 Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential at very low values of programmed output voltage the minimum input supply voltage of 2V 2 3V over temperature must be taken into account Note 3 Thermal regulation is defined as the change in output voltage ata time T after a change in power dissipation is applied excluding load or line regulation effect Note 4 Adjustable Version Only TYPICAL PERFORMANCE CHARACTERISTICS 3 325 1 275 1 27 3 320 1 265 1 26 3
4. 3 3 lead TO 252 SPX1587R 3 3 TR 3 lead TO 252 SPX1587R 5 0 d 3 lead TO 252 SPX1587R 5 0 TR 3 lead TO 252 lt AE RE j 3 lead TO 263 SPX1587T TR j 3 lead TO 263 SPX1587T 1 5 DV u red ESN 3 lead TO 263 SPX1587T 1 5 TR SG EE 3 lead TO 263 SPX1587T 1 8 IO iati riii ida M E 3 lead TO 263 SPX1587T 1 8 TR 3 lead TO 263 SPX1587T 2 5 3 lead TO 263 SPX1587T 2 5 TR 3 lead TO 263 SPX1587T 3 3 m S 3 lead TO 263 SPX1587T 3 3 TR 3 lead TO 263 SPX1587T 5 0 SE MR x 3 lead TO 263 SPX1587T 5 0 TR v DOV 3 lead TO 263 SPX1587U ene j 3 lead TO 220 3 lead TO 220 3 lead TO 220 3 lead TO 220 3 lead TO 220 3 lead TO 220 SPX1587U 1 5 SPX1587U 1 8 SPX1587U 2 5 SPX1587U 3 3 SPX1587U 5 0 Available in lead free packaging To order add L suffix to part number Example SPX1587AT 5 0 TR standard SPX1587AT L 5 0 TR lead free TR Tape and Reel Pack quantity is 500 for TO 263 and 2 000 for TO 252 ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas CA 95035 TEL 408 934 7500 FAX 408 935 7600 Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 20
5. pins Thermal Characteristics The SPX1587 features the internal thermal limiting to protect the device during overload conditions Special care needs to be taken during continuous load conditions such that the maximum junction tempera ture does not exceed 125 C Thermal protection is activated at gt 179 C and deactiviated at lt 165 C The thermal interaction from other components in the application can effect the thermal resistance of the SPX1587 The actual thermal resistance can be determined with experimentation SPX1587 power dissipation is calculated as follows Py Vin E Vour Cour Maximum Junction Temperature range T T max P thermal resistance junction to ambient Maximum junction temperature must not exceed the 125 C Ripple Rejection Ripple rejection can be improved by adding a capacitor between the ADJ pin and ground as shown in Figure 8 When ADJ pin bypassing is used the value of the output capacitor required increases to its maximum If the ADJ pin is not bypassed the value of the output capacitor can be lowered to 22uF for an electrolytic aluminum capacitor or 10uF for a solid tantalum capacitor Fig 7 Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator APPLICATION INFORMATION However the value of the ADJ bypass capacitor should be chosen with respect to the following equation C 1 6 28 F R Where C value of the capacitor in Farads select an equal or larger stand
6. 005 e 018 024 D1 205 El 170 H 370 410 L 055 060 070 LI 108 REF 3 PIN TO 252 L2 020 BSC SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 7 Date 5 25 04 PACKAGE 3 PIN TO 220 oP 5 En A GG Q N H1 GR H Se E V T l SE Y 1 UR rn i E PIN TEES SOR bi i e3 C1l J1 DIMENSIONS rer in inches et SYMBOL MAX A 0 160 0 190 b 0 025 0 040 p C1 0 015 0 022 D 0 560 0 590 E 0 385 0 415 e e 0 090 0 110 el 0 190 0 210 e3 0 045 0 055 F 0 045 0 055 E H1 0 234 0 258 z Fe e J1 0 090 0 115 Ge ES oP 0 146 0 156 Q 0 103 0 113 L 0 540 0 560 a 3 typ 7 typ b1 0 450 0 060 R 0 243 REF 6 170 REF U 0 300 REF 7 620 REF V 0 240 REF 6 100 REF 3 Pin TO 220 Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 8 TERMINAL 8 RN f PACKAGE 3 PIN TO 263 DIMENSIONS in inches MIN MAX 206 0 406 0 326 0 336 0 170 0 180 0 026 0 036 0 045 0 055 0 100 REF 0 100 REF 0
7. 04 Sipex Corporation 11
8. 315 gt 1 255 E s 5 Z 125 o 2 gt E 3 310 1 245 1 24 3 305 1 235 1 23 3 300 1 225 E 4 5 6 5 8 5 10 5 12 5 14 5 50 30 10 10 30 50 70 90 110 130 Vin V Temp C Figure 1 Line Regulation for SPX1587U 3 3 I 10mA Figure 2 V vs Temperature V 2 5V I 10mA OUT 2 55 TITI TLE 2 54 2 5v Adj 2 53 2 52 Ve gt 2 51 5 gt 3 2 5 gt 2 49 2 48 2 47 2 46 2 45 3 26 50 30 10 10 30 50 70 90 110 130 50 30 10 10 30 50 70 90 110 130 Temp C Temp C Figure 3 V 4 0V I 10mA Figure 4 V 5 0V I 10mA Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 3 Output Capacitor To ensure the stability of the SPX1587 an output capacitor of at least 10uF ceramic or tantalum or 22uF aluminum is required The value may change based on the application requirements of the output load or temperature range The value of ESR can vary based on the type of capacitor used in the applica tions to guarantee stability The recommended value for ESR is 0 5Q or less A larger value of output capacitance up to 100uF can improve the load transient response Soldering Methods The SPX1587 die is attached to the heatsink lead which exits opposite the input output and ground
9. 580 0 620 0 055 0 066 000 010 0 098 0 108 017 023 090 110 0 8 095 105 30 REF 30 REF 305 REF 305 REF ze amp ciomnmyuziernrzxiromiojiou 010 010 3 Pin TO 263 Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator 9 Copyright 2004 Sipex Corporation ORDERING INFORMATION PART NUMBER S OUTPUT VOLTAGE PACKAGE SPX1587AR j 3 lead TO 252 SPX1587AR TR 9 lead TO 252 SPX1587AR 1 5 9 lead TO 252 SPX1587AR 1 5 TR 3 lead TO 252 SPX1587AR 1 8 3 lead TO 252 SPX1587AR 1 8 TR 3 lead TO 252 SPX1587AR 2 5 3 lead TO 252 SPX1587AR 2 5 TR D id 9 lead TO 252 SPX1587AR 3 3 es 3 3V 3 lead TO 252 SPX1587AR 3 3 TR ste i 9 lead TO 252 SPX1587AR 5 0 ees a DOM ua 9 lead TO 252 SPX1587AR 5 0 TR bie is s t 9 lead TO 252 SPX1587AT sisi j 3 lead TO 263 SPX1587AT TR j 3 lead TO 263 SPX1587AT 1 5 9 lead TO 263 SPX1587AT 1 5 TR E d 9 lead TO 263 SPX1587AT 1 8 v i a LBV uus 9 lead TO 263 SPX1587AT 1 8 TR is isi 9 lead TO 263 SPX1587AT 2 5 is is ZOV su 9 lead TO 263 SPX1587AT 2 5 TR 3 lead TO 263 SPX1587AT 3 3 3 lead TO 263 SPX1587AT 3 3 TR 3 lead TO 263 SPX1587AT 5 0 3 lead TO 263 SPX1587AT 5 0 TR
10. 9 lead TO 263 SPX1587AU 3 lead TO 220 SPX1587AU 1 5 z T D 9 lead TO 220 SPX1587AU 1 8 3 lead TO 220 SPX1587AU 2 5 3 lead TO 220 SPX1587AU 3 3 sg eg e Ses 9 lead TO 220 SPX1587AU 5 0 3 lead TO 220 Available in lead free packaging To order add L suffix to part number Example SPX1587AT 5 0 TR standard SPX1587AT L 5 0 TR lead free TR Tape and Reel Pack quantity is 500 for TO 263 and 2 000 for TO 252 ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas CA 95035 TEL 408 934 7500 FAX 408 935 7600 Sipex Corporation reserves the right to make changes to any products described herein Sipex does not assume any liability arising out of the application or use of any product or circuit described herein neither does it convey any license under its patent rights nor the rights of others Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 10 ORDERING INFORMATION PART NUMBER ACC OUTPUT VOLTAGE PACKAGE SPXIBBZR ss j 3 lead TO 252 SPX1587R TR j 3 lead TO 252 SPX1587R 1 5 3 lead TO 252 SPX1587R 1 5 TR 3 lead TO 252 SPX1587R 1 8 T is sis OV ass 3 lead TO 252 SPX1587R 1 8 TR es Pe 3 lead TO 252 SPX1587R 2 5 3 lead TO 252 SPX1587R 2 5 TR 3 lead TO 252 SPX1587R 3
11. SPX1587 3A Low Dropout Voltage Regulator FEATURES Guaranteed 3A Output Current SPX1587 Three Terminal Adjustable or Fixed 3 Pin TO 263 1 5V 1 8V 2 5V 3 3V and 5 0V 3 H V Low Quiescent Current Low Dropout Voltage 1 1V at 3A Line Regulation 0 1 Load Regulation 0 1 ADJIGND Van Stable with 10uF Ceramic Capacitor SPX1587 3 Pin TO 220 H PES Overcurrent and Thermal Protection Available Packages TO 252 ADJ GND Vour Vin TO 220 and TO 263 Now Available in Lead Free Packaging Similar to Industry Standard LT1085 LT1585 APPLICATIONS Bi Desktop PC s Servers B Powering VGA and Sound Cards B Cordless Phones B Battery Chargers E E Adjustable Power Supplies Portable Instrumentation SMPS Post Regulator DESCRIPTION The SPX1587 is a low power positive voltage regulator designed to satisfy moderate power requirements with a cost effective small footprint solution This device is an excellent choice for use in battery powered applications and portable computers The SPX1587 features very low quiescent current and a low dropout voltage of 1 1V ata full load As output current decreases quiescent current flows into the load increasing efficiency SPX1587 is available in adjustable or fixed 1 5V 1 8V 2 5V 3 3V and 5 0V output voltages The SPX1587 is offered in several 3 pin surface mount packages TO 252 TO 220 and TO 263 An output capacitor of 10uF ceramic or tantalum provides unconditiona
12. ard value F ripple frequency in Hz R value of resistor R1 in Ohms If an ADJ bypass capacitor is used the amplitude of the output ripple will be independent of the output voltage If an ADJ bypass capacitor is not used the output ripple will be proportional to the ratio of the output voltage to the reference voltage M Vour Nam Where M multiplier for the ripple seen when the ADJ pin is optimally bypassed Vege 1 25V Ripple rejection for the adjustable version is shown in Figure 5 Output Voltage The output of the adjustable regulator can be set to any voltage between 1 25V and 15V The value of V Can be quickly approximated using the formula V our l 25 R R R A small correction to this formula is required depending on the values of resistors R and R since the adjustable pin current approx 50uA flows through R When I is taken into account the formula becomes V Yael RYR La R OUT where Vg l 25V Layout Considerations Parasitic line resistance can degrade load regulation In order to avoid this connect R directly to V as illustrated in Figure 13 For the same reason R should be connected to the negative side of the load Copyright 2004 Sipex Corporation APPLICATION INFORMATION Continued Ripple Rejection Db
13. l stability FUNCTIONAL DIAGRAM Adjustable 4 9 Viy SH GN Current Limit Oo lo a E C AME 1 25V V Thermal Limit H e EM ADJ GND p gt laps 50uA Date 5 25 04 SPX1587 3A Low Dropout Voltage Regulator Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Power Dissipation Internally Limited Operating Junction Temperature Range Lead Temperature soldering 5 seconds 260 C Input Supply Voltage issus Storage Temperature Range 65 C to 150 C Input to Output Voltage arn ite n ESD Baliht cicer 4 teats oen e E RE SEN ELECTRICAL CHARACTERISTICS Specifications are at Vae Voort LAN T 25 C C Coan 10uF our 1 OmA unless otherwise specified The denotes the specifications which apply full operating temperature range 40 C to 85 C unless otherwise specified PARAMETER MIN TYP MAX MIN TYP MAX UNITS CONDITIONS 1 5V Version SPX1587A SPX1587 Output Voltage 1 485 1 500 1 515 1 470 1 500 1 530 V lout 10mA Vin 3 5V 1 470 1 530 1 455 1 545 10mA lt laur lt 3A 3 0V lt Vy lt 10V 1 8V Version Output Voltage 1 782 1 800 1 818 1 764 1 800 1 836 V lour 10mA Vin 3 8V 1 764 1 836 1 746 1 854 10MA lt lour 3A

sipex SPX1587 3A Low Dropout Voltage Regulator handbook

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