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| SPX29150/51/52/53 1.5A Low Dropout Voltage Regulator FEATURES Adjustable Output Down to 1.25V 1% Output Accuracy Output Current of 1.5A Low Dropout Voltage of 390mV @ 1.5A Extremely Tight Load and Line Regulation Extremely Fast Transient Response Reverse-Battery Protection Zero Current Shutdown (5 pin version) Error Flag Signal Output for Out of Regulation State (5 pin version) Standard TO-220 and TO-263 Packages APPLICATIONS Powering VGA and Sound Cards LCD Monitors USB Power Supplies PowerPCTM Supplies SMPS Post Regulators High-efficiency "Green" Computer Systems High-efficiency Linear Power Supplies Portable Instrumentation Constant Current Regulators Adjustable Power Supplies Battery Chargers DESCRIPTION The SPX29150/51/52/53 are 1.5A, highly accurate voltage regulators with a low dropout voltage of 390mV (typical) @ 1.5A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. On-chip trimming adjusts the reference voltage to 1% initial accuracy. Other features in the 5 pin versions include Enable and Error Flag. The SPX29150/51/52/53 is offered in 3-pin and 5-pin TO-220 & TO-263 packages. For a 3A version, refer to the SPX29300 data sheet. TYPICAL APPLICATION CIRCUITS VIN + 6.8 F 1 SPX29150 3 2 + 10 F VOUT VIN + 6.8 F 1 SPX29152 4 2 GND 3 5 ADJ VOUT + R1 10 F R2 Figure 1. Fixed Output Linear Regulator Rev A 8/5/06 Figure 2. Adjustable Output Linear Regulator (c) Copyright 2006 Sipex Corporation SP2950/5/52/53 .5A Low Dropout voltage Regulator ABSOLUTE MAXIMUM RATINGS Storage Temperature Range........................-65C to +150C Operating Junction Temperature Range......-40C to +125C Input Voltage (Note 7)......................................................6v at vin=vout + 1V and Iout = 10mA, Cin = 6.8F, Cout = 10F, Ta = 25C, unless otherwise specified. The Boldface applies over the junction temperature range. Adjustable versions are set to 5.0V. SPX29150/51 PARAMETER CONDITIONS Typ Units Min Max 1.8V Version iout = 10mA .8 1.782 .88 output voltage v 10mA Iout 1.5A, 2.5V Vin 16V 1.8 1.764 1.836 2.5V Version iout = 10mA 2.5 2.475 2.525 output voltage v 10mA Iout1.5A, 3.5VVin 16V i 1.5A, V 6v v 2.5 2.450 2.550 3.3V Version iout = 10mA 3.3 3.267 3.333 output voltage v 10mA Iout1.5A, 4.3VVin 16V i 1.5A, V 6v v 3.3 3.234 3.366 5.0V Version iout = 10mA 5.0 4.950 5.050 output voltage v 10mA Iout1.5A, 6.0VVin 16V i 1.5A, V 6v v 5.0 4.900 5.100 All Voltage Options SPX29150/51/52/53 Line Regulation io = 10mA, (Vout + 1V) V 6v vin 16V 0. 0.5 % vin = vout + 1V, 10mA Iout IfullLoad Regulation 0.2 % load ELECTRICAL CHARACTERISTICS V T Dropout Voltage (Note 1) (except 1.8V version) Ground Current (Note 3) ignddo Ground Pin Current at Dropout Current Limit Output Noise Voltage (10Hz to 100kHz) il = 100mA Reference Voltage output voltage Temperature Coefficient io = 100mA io = 750mA io = .5A io = 750mA, Vin = vout, +1V io = .5A vin = 0.1V less than specified Vout iout = 10mA vout = 0.0V (Note 2) Cl = 0f Cl = 33f Adjustable version only 13 70 230 390 2 45 0.9 2.2 400 260 1.240 .228 1.215 .203 1.7 100 200 ppm/C mV 600 25 mA mA A vrms .252 1.265 1.277 80 120 v Reference Voltage Adjustable version only (Note 8) Adjust Pin Bias Current Reference Voltage Temperature (Note 4) Coefficient Adjust Pin Bias Current Temperature Coefficient Flag Output (Error Comparator) SPX29151/53 Output Leakage Current output Low voltage Rev A 8/5/06 40 3 nA ppm/C 0. nA/C voh=6v Device set for 5V, Vin=4.5V, iol=250A 0. 200 .00 2.00 300 400 UA mV SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 2 ELECTRICAL CHARACTERISTICS CONT'D PARAMETER Upper Threshold voltage Lower Threshold voltage Hysteresis ENABLE input SPX29151/52 Input Logic Voltage Low (OFF) High (ON) Enable Input Pin Input Current vin < 10V ven=6v ven=0.8v Regulator output Current in Shutdown (Note 6) TO-220 Junction to Case, at Tab TO-220 Junction to Ambient Thermal Resistance TO-263 Junction to Case, at Tab TO-263 Junction to Ambient 0 3 30 3 32 C/W 00 0.8 600 750 1 2 500 v A A A CONDITIONS Device set for 5V (Note 5) Device set for 5V (Note 5) Device set for 5V (Note 5) Typ 60 75 5 SPX29150/51 Min Max 40 25 95 140 Units mV mV mV 2.4V NOTES: Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value. Note 2: Vin = vout (NOMINAL) +1V. For example, use Vin = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise. Note 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current. Note 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Note 5: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured 6V input. To express these thresholds in terms of output voltage change, multiply the error amplifier gain = Vout/vref = (R1 + R2)/R2. For example, at a programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Thresholds remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed. Note 6: Ven 0.8V and Vin 16V, Vout = 0. Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V. Note 8: Vref Vout (Vin-1), 2.5VVin 16V, 10mA Il Ifl, Tj < Tjmax. BLOCK DIAGRAM OUT IN O.v I LIMIT FLAG + 1.180v Reference 1.240v + 28v R1* ADJ EN Thermal shutdown R2* GND Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 3 TYPICAL PERFORMANCE CHARACTERISTICS 3.320 3.315 3.310 3.30 3.305 Vout (V ) Vout (V) 3.305 3.300 3.295 3.290 3.285 3.280 4 6 8 10 Vin (V) 12 3.3V Device IL = 10mA CL = 10uF 14 16 3.300 3.295 3.290 3.285 3.280 0 0.25 0.5 0.75 IL (A) 3.3V Device Vin = 4.3V CL = 0f .25 .5 Figure 3. Line Regulation Figure 4. Load Regulation 80.0 70.0 60.0 300 280 260 Ignd (mA) Ignd (uA) 50.0 40.0 30.0 20.0 0.0 0.0 0 0.25 0.5 0.75 IL (A) .25 .5 3.3V Device Vin = 4.3V CL = 0uf 240 220 200 80 4 6 8 0 Vin (V) 2 4 16 3.3V Device IL = 10mA CL = 0uf Figure 5. Ground Current vs Load Current 00 90 80 Figure 6. Ground Current vs Input Voltage 600 500 Vdropout (mV) Ignd (mA) 70 60 50 40 30 20 0 0 0 0.25 0.5 0.75 IL (A) .25 .5 3.3V Device vin = 3.2v CL = 0uf 400 300 200 100 0 0 0.25 0.5 0.75 IL (A) 1 1.25 1.5 3.3V Device CL = 10uF Figure 7. Ground Current vs Load Current in Dropout Figure 8. Dropout Voltage vs Load Current Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 4 TYPICAL PERFORMANCE CHARACTERISTICS 280 270 260 250 240 230 220 20 200 90 80 -40 -20 0 20 40 60 Temperature (o C) 80 00 20 3.3V Device Vin = 4.3V IL = 10mA CL = 0uf 3.320 3.30 3.300 3.290 Vout Ignd (uA) 3.280 3.270 3.260 3.250 3.240 3.230 3.220 -40 3.3V Device Vin = 4.3V IL = 10mA CL = 0uf -20 0 20 40 60 Temperature (o C) 80 00 20 Figure 9. Ground Current vs Temperature at iload=10mA 7.00 6.80 6.60 6.40 Figure 10. Output Voltage vs Temperature at Iload=10mA 30 Ignd (mA) Ignd (mA) 6.20 6.00 5.80 5.60 5.40 5.20 5.00 -40 -20 0 20 40 60 Temperature (o C) 80 3.3V Device Vin = 4.3V IL = 500mA CL = 0uf 29 28 27 26 25 24 23 22 21 20 3.3V Device Vin = 3.2V IL = 750mA CL = 10F 00 20 -40 -20 0 20 40 60 o Temperature ( C) 80 100 120 Figure 11. Ground Current vs Temperature at iload=500mA 52.0 50.0 48.0 Ignd (mA) Figure 12. Ground Current vs Temperature in Dropout at iload=750mA 00 95 90 Ignd (mA) 85 80 75 70 -40 -20 0 20 40 60 Temperature ( o C) 80 00 20 3.3V Device vin = 3.2v iL = .5A CL = 0f 46.0 44.0 42.0 40.0 38.0 36.0 -40 -20 0 20 40 60 80 00 20 Temperature (o C) 3.3V Device Vin = 4.3V iL = .5A CL = 0uf Figure 13. Ground Current vs Temperature at iload=.5A Figure 14. Ground Current vs Temperature in Dropout at iload=.5A Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 5 TYPICAL PERFORMANCE CHARACTERISTICS 350 330 30 290 270 250 230 20 90 170 50 -40 -20 0 20 40 60 80 00 20 Temperature (o C) 3.3V Device IL = 750mA CL = 0uf 500 480 460 Vdropout (mV) Vdropout (mV) 440 420 400 380 360 340 320 -40 -20 0 20 40 60 80 3.3V Device IL = 750mA CL = 0uf 00 20 Temperature ( o C) Figure 15. Dropout Voltage vs Temperature at iload=750mA Figure 16. Dropout Voltage vs Temperature at iload=.5A 35 30 25 (uA) Vth (V) 2.00 1.90 1.80 1.70 1.60 1.50 1.40 1.30 1.20 1.10 -40 -20 0 20 40 60 o 3.3V Device 20 15 10 5 0 80 100 120 Temperature ( C) 3.3V Device I EN 1.00 -40 -20 0 20 40 60 o 80 100 120 Temperature ( C) Figure 17. ENABLE Current vs Temperature at ven=6v Figure 18. ENABLE Threshold vs Temperature Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 6 APPLICATION INFORMATION The SPX29150/51/52/53 incorporates protection against over-current faults, reversed load insertion, over temperature operation, and positive and negative transient voltages. Thermal Considerations Although the SPX29150/51/52/53 offers limiting circuitry for overload conditions, it is still necessary to insure that the maximum junction temperature is not exceeded in the application. Heat will flow through the lowest resistance path, the junction-to-case path. In order to insure the best thermal flow of the component, proper mounting is required. Consult the heatsink manufacturer for thermal resistance and heat sink design. TO-220 Design Example: Assume that Vin = 10V, Vout = 5V, Iout = 1.5A, Ta = 50C, h= 1C/W, ch= 2C/W, and jc= 3C/W, where: Ta = ambient temperature, ha = heatsink to ambient thermal resistance ch = case to heatsink thermal resistance jc = junction to case thermal resistance The power calculated under these conditions is: Pd = (Vin - vout) * Iout = 7.5W. And the junction temperature is calculated as Tj = Ta + Pd * (ha + ch + jc) or Tj = 50 + 7.5 * (1+2+3) = 95C Reliable operation is insured. Capacitor Requirements The output capacitor is needed to insure stability and minimize the output noise. The value of the capacitor varies with the load. However, a minimum value of 10F aluminum capacitor will guarantee stability over all load conditions. A tantalum capacitor is recommended if a faster load transient response is needed. If the power source has a high AC impedance, a 0.1F ceramic capacitor between input & ground is recommended. The output capacitors maximum ESR value for stable operation is 0.33ohms. Minimum Load Current To ensure proper behavior of the regulator under light loads, a minimum load of 5mA for SPX29150/51/52/53 is required. Typical Application Circuits Figure 19 represents a typical fixed output regulator. Figure 20 represents an adjustable output regulator. The values of R1 and R2 set the output voltage value as follows: Vout =vref * [1 + (R1/R2)]. A minimum value of 10k is recommended for R2 with a range between 10k and 47k. VIN + 6.8F SPX29150 + 10F VOUT VIN + 6.8 F 1 SPX29152 2 GND 3 5 4 ADJ + R1 VOUT 10 F R2 Figure 19. Fixed Output Linear Regulator Figure 20. Adjustable Output Linear Regulator Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 7 PACKAGE PINOUTS TO-263-3 Package (T) TO-263-5 Package (T5) SPX29 151 1 2 3 12345 1) ENABL E 2) INPUT 3) GND 4) OUTPUT 5) FLAG V IN GND V OUT SPX29 152 1) ENABL E 2) INPUT 3) GND 4) OUTPUT 5) ADJU ST SPX29 153 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJU ST Top View Front View *Tab is internally connected to GND TO-220-3 Package (U) TO-220-5 Package (U5) 1 2 3 SPX29 151 1) ENABL E 2) INPUT 3) GND 4) OUTPUT 5) FLAG SPX29 152 1) ENABL E 2) INPUT 3) GND 4) OUTPUT 5) ADJU ST SPX29 153 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJU ST V IN GND V OUT 1 234 5 Front View Top View Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 8 PACKAGE: 3 PIN TO-263 e e/2 L A C2 Seating Plane SIDE VIEW D H Chamfer optional 2 3 c e See Detail C b2 b Gauge Plane FRONT VIEW L3 L A Seating Plane DETAIL C Thermal Pad (L1) SYMBOL 3 Pin TO-263 JEDEC TO-263 Inches Controlling Dimension Variation AA Millimeters Conversion Factor: 1 Inch = 25.40 mm MIN NOM MAX 4.06 4.83 0.00 0.25 0.5 0.99 1.14 1.78 0.38 0.74 1.14 .65 8.38 9.65 6.86 9.65 10.67 6.22 2.54 BSC 14.61 5.88 1.78 2.79 .68 0.25 BSC 0 8 JL Aug5-05 / Rev A D BACK VIEW e MIN NOM MAX A 0.60 0.90 A 0.000 0.00 b 0.020 0.039 b2 0.045 0.070 c 0.05 0.029 c2 0.045 0.065 D 0.330 0.380 D 0.270 e 0.380 0.420 e 0.245 e .100 BSC H 0.575 0.625 L 0.070 0.0 L 0.066 L3 .010 BSC o 0 8 SIPEX Pkg Signoff Date/Rev: Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 9 PACKAGE: 5 PIN TO-263 e e/2 L A C2 Seating Plane D Chamfer optional H 2 3 4 5 SIDE VIEW c See Detail C e b FRONT VIEW Gauge Plane L L3 A Seating Plane BACK VIEW Thermal Pad (L1) DETAIL C 5 Pin TO-263 JEDEC TO-263 Dimensions in Inches: Controlling Dimension D Variation BA Dimensions in Millimeters Conversion Factor: 1 Inch = 25.40 mm MIN NOM MAX 4.06 4.83 0.00 0.25 0.5 0.99 0.38 0.74 1.14 .65 8.38 9.65 6.86 9.65 10.67 6.22 1.702 BSC 14.61 5.88 1.78 2.79 .68 0.254 BSC 0 8 JL Jun12-06 / Rev B e SYMBOL MIN NOM MAX A 0.60 0.90 A 0.000 0.00 b 0.020 0.039 c 0.05 0.029 c2 0.045 0.065 D 0.330 0.380 D 0.270 e 0.380 0.420 e 0.245 e .067 BSC H 0.575 0.625 L 0.070 0.0 L 0.066 L3 .010 BSC o 0 8 SIPEX Pkg Signoff Date/Rev: Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 0 PACKAGE: 3 PIN TO-220 Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation PACKAGE: 5 PIN TO-220 Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 2 ORDERINGINFORMATION PART NUMBER SPX29150U-1-8 SPX29150U-2-5 SPX29150U-3-3 SPX29150U-5-0 SPX29150T-1-8 SPX29150T-1-8/TR SPX29150T-2-5 SPX29150T-2-5/TR SPX29150T-3-3 SPX29150T-3-3/TR SPX29150T-5-0 SPX29150T-5-0/TR SPX29151U5-1-8 SPX29151U5-2-5 SPX29151U5-3-3 SPX29151U5-5-0 SPX29151T5-1-8 SPX29151T5-1-8/TR SPX29151T5-2-5 SPX29151T5-2-5/TR SPX29151T5-3-3 SPX29151T5-3-3/TR SPX29151T5-5-0 SPX29151T5-5-0/TR SPX29152T5 SPX29152T5/TR SPX29152U5 SPX29153T5 SPX29153T5/TR SPX29153U5 ACCURACY 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% OUTPUT VOLTAGE 1.8V 2.5V 3.3V 5.0V 1.8V 1.8V 2.5V 2.5V 3.3V 3.3V 5.0V 5.0V 1.8V 2.5V 3.3V 5.0V 1.8V 1.8V 2.5V 2.5V 3.3V 3.3V 5.0V 5.0V Adj Adj Adj Adj Adj Adj 3 lead TO-220 3 lead TO-220 3 lead TO-220 3 lead TO-220 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 5 lead TO-220 5 lead TO-220 5 lead TO-220 5 lead TO-220 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-220 5 lead TO-263 5 lead TO-263 5 lead TO-220 PACKAGE Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX29153T5/TR = standard; SPX29153T5-L/TR = lead free Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 ANALOG EXCELLENCE 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. PowerPC is a registered trademark of IBM. Rev A 8/5/06 SP2950/5/52/53 .5A Low Dropout voltage Regulator (c) Copyright 2006 Sipex Corporation 3 |
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