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 ■ PowerPC™ 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 + 6.8µ F 1 SPX29150 3 2 VOUT + VIN + 6.8µ F 10µ F 1 SPX29152 4 2 3 GND 5 ADJ VOUT + R1 10µ F R2 Figure 1. Fixed Output Linear Regulator Rev A 8/15/06 Figure 2. Adjustable Output Linear Regulator SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation ABSOLUTE MAXIMUM RATINGS Storage Temperature Range........................-65°C to +150°C Operating Junction Temperature Range......-40°C to +125°C Input Voltage (Note 7)......................................................16V ELECTRICAL CHARACTERISTICS at Vin=Vout + 1V and Iout = 10mA, Cin = 6.8µF, Cout = 10µF, Ta = 25°C, 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 1.8 1.782 1.818 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 ≤� ��Iout≤������������� 1.5A, 3.5V�� ≤� Vin ≤��� 16V 2.5 2.450 2.550 3.3V Version Iout = 10mA 3.3 3.267 3.333 Output Voltage V 10mA ≤� ��Iout≤������������� 1.5A, 4.3V�� ≤� Vin ≤��� 16V 3.3 3.234 3.366 5.0V Version Iout = 10mA 5.0 4.950 5.050 Output Voltage V 10mA ≤� ��Iout≤������������� 1.5A, 6.0V�� ≤� Vin ≤��� 16V 5.0 4.900 5.100 All Voltage Options SPX29150/51/52/53 Line Regulation Io = 10mA, (Vout + 1V) ≤�� ��� Vin ≤���� 16V 0.1 0.5 % Vin = Vout + 1V, 10mA ≤ Iout≤ IfullLoad Regulation 0.2 1 % load ∆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 13 100 Io = 100mA Io = 750mA Io = 1.5A Io = 750mA, Vin = Vout, +1V Io = 1.5A Vin = 0.1V less than specified Vout Iout = 10mA Vout = 0.0V (Note 2) Cl = 10µF 70 230 390 12 45 200 Cl = 33µF Adjustable version only 260 1.240 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 40 mA mA 1.7 A µVrms 1.228 1.215 1.203 1.252 1.265 1.277 80 120 V nA ppm/°C 0.1 nA/°C Voh=16V 0.1 Output Low Voltage Device set for 5V, Vin=4.5V, Iol=250µA 200 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 25 13 Output Leakage Current Rev A 8/15/06 mV 600 0.9 2.2 400 ppm/°C 1.00 2.00 300 400 UA mV © Copyright 2006 Sipex Corporation ELECTRICAL CHARACTERISTICS cont'd PARAMETER CONDITIONS Typ SPX29150/51 Min Max 40 25 Upper Threshold Voltage Device set for 5V (Note 5) 60 Lower Threshold Voltage Device set for 5V (Note 5) 75 Hysteresis Device set for 5V (Note 5) 15 Units mV 95 140 mV mV ENABLE input SPX29151/52 Input Logic Voltage Low (OFF) High (ON) Enable Input Pin Input Current Vin < 10V 2.4V Ven=16V 100 Ven=0.8V Regulator Output Current in Shutdown Thermal Resistance (Note 6) 10 TO-220 Junction to Case, at Tab TO-220 Junction to Ambient 3 30 TO-263 Junction to Case, at Tab TO-263 Junction to Ambient 3 32 0.8 V 600 750 µA 1 2 µA 500 µA °C/W 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), 2.5V≤Vin ≤ 16V, 10mA ≤ Il ≤ Ifl, Tj < Tjmax. BLOCK DIAGRAM IN OUT O.v I LIMIT FLAG + 1.180v Reference 1.240v - 28v + R1* ADJ EN Thermal shutdown R2* GND Rev A 8/15/06 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation TYPICAL PERFORMANCE CHARACTERISTICS 3.30 3.320 3.315 3.305 3.310 Vout (V ) Vout (V) 3.305 3.300 3.295 3.295 3.290 3.290 3.3V Device IL = 10mA CL = 10uF 3.285 3.280 3.300 4 6 8 10 12 14 3.3V Device Vin = 4.3V CL = 0µf 3.285 3.280 16 0 0.25 0.5 Figure 3. Line Regulation .25 .5 300 70.0 280 60.0 260 50.0 Ignd (uA) Ignd (mA) Figure 4. Load Regulation 80.0 40.0 30.0 20.0 240 220 3.3V Device IL = 10mA CL = 0uf 200 3.3V Device Vin = 4.3V CL = 0uf 0.0 80 4 0.0 0 0.75 IL (A) Vin (V) 0.25 0.5 0.75 IL (A) .25 6 8 .5 Figure 5. Ground Current vs Load Current 0 Vin (V) 2 4 16 Figure 6. Ground Current vs Input Voltage 600 00 90 500 Vdropout (mV) Ignd (mA) 80 70 60 50 40 30 3.3V Device vin = 3.2v 20 0 0 0.25 0.5 0.75 .25 200 3.3V Device CL = 10uF 0 .5 0 IL (A) 0.25 0.5 0.75 1 1.25 1.5 IL (A) Figure 7. Ground Current vs Load Current in Dropout Rev A 8/15/06 300 100 CL = 0uf 0 400 Figure 8. Dropout Voltage vs Load Current SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation 280 3.320 270 3.30 260 3.300 250 240 3.290 Vout Ignd (uA) TYPICAL PERFORMANCE CHARACTERISTICS 230 220 200 90 3.250 3.240 3.230 80 -40 -20 0 20 40 60 Temperature (o C) 80 00 3.220 -40 20 Figure 9. Ground Current vs Temperature at Iload=10mA -20 0 20 40 60 Temperature (o C) 80 00 20 Figure 10. Output Voltage vs Temperature at Iload=10mA 29 3.3V Device Vin = 4.3V IL = 500mA CL = 0uf 6.40 6.20 3.3V Device Vin = 3.2V IL = 750mA CL = 10µF 28 27 Ignd (mA) 6.60 Ignd (mA) 3.3V Device Vin = 4.3V IL = 10mA CL = 0uf 30 7.00 6.80 6.00 5.80 5.60 26 25 24 23 5.40 5.20 22 21 5.00 -40 -20 0 20 40 60 Temperature (o C) 80 00 20 20 -40 -20 0 20 40 60 o Temperature ( C) 80 100 Figure 12. Ground Current vs Temperature in Dropout at Iload=750mA Figure 11. Ground Current vs Temperature at Iload=500mA 52.0 120 00 50.0 95 48.0 46.0 90 Ignd (mA) Ignd (mA) 3.270 3.260 3.3V Device Vin = 4.3V IL = 10mA CL = 0uf 20 3.280 44.0 42.0 3.3V Device Vin = 4.3V iL = .5A CL = 0uf 40.0 38.0 -20 0 20 40 60 80 00 70 20 -40 Temperature (o C) Figure 13. Ground Current vs Temperature at Iload=1.5A Rev A 8/15/06 3.3V Device vin = 3.2v iL = .5A CL = 0µf 80 75 36.0 -40 85 -20 0 20 40 60 Temperature ( o C) 80 00 20 Figure 14. Ground Current vs Temperature in Dropout at Iload=1.5A SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation TYPICAL PERFORMANCE CHARACTERISTICS 350 500 330 480 460 290 Vdropout (mV) Vdropout (mV) 30 270 250 230 3.3V Device 20 170 420 400 380 340 320 -40 50 -40 -20 0 20 40 60 80 00 3.3V Device IL = 750mA CL = 0uf 360 IL = 750mA CL = 0uf 90 440 -20 0 Temperature (o C) 35 00 20 3.3V Device 1.80 1.70 Vth (V) (uA) 80 1.90 25 I EN 60 2.00 30 15 40 Figure 16. Dropout Voltage vs Temperature at Iload=1.5A Figure 15. Dropout Voltage vs Temperature at Iload=750mA 20 20 Temperature ( o C) 20 3.3V Device 10 1.60 1.50 1.40 1.30 1.20 5 1.10 1.00 -40 0 -40 -20 0 20 40 60 80 100 120 -20 20 40 60 80 100 120 Temperature ( C) Figure 17. ENABLE Current vs Temperature at Ven=16V Rev A 8/15/06 0 o o Temperature ( C) Figure 18. ENABLE Threshold vs Temperature SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation 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. Tj = 50 + 7.5 * (1+2+3) = 95°C 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 10µF 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 0.1µF ceramic capacitor between input & ground is recommended. The output capacitors maximum ESR value for stable operation is 0.33ohms. 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. 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. TO-220 Design Example: Assume that Vin = 10V, Vout = 5V, Iout = 1.5A, Ta = 50°C, θh= 1°C/W, θch= 2°C/W, and θjc= 3C°/W, where: Ta = ambient temperature, θha = heatsink to ambient thermal resistance θch = case to heatsink thermal resistance θjc = junction to case thermal resistance 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 10kΩ is recommended for R2 with a range between 10kΩ and 47kΩ. The power calculated under these conditions is: Pd = (Vin – Vout) * Iout = 7.5W. And the junction temperature is calculated as Tj = Ta + Pd * (θha + θch + θjc) or VIN + 6.8µF SPX29150 VIN VOUT + + 6.8µ F 10µF 1 SPX29152 2 3 GND 4 5 ADJ VOUT + R1 10µ F R2 Figure 19. Fixed Output Linear Regulator Rev A 8/15/06 Figure 20. Adjustable Output Linear Regulator SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation Package PINOUTS TO-263-3 Package (T) 1 V IN 2 3 GND V OUT TO-263-5 Package (T5) 1 2 3 4 5 SPX29 151 SPX29 152 SPX29 153 1) ENABL E 2) INPUT 1) ENABL E 2) INPUT 1) FLAG 2) INPUT 3) GND 4) OUTPUT 3) GND 4) OUTPUT 3) GND 4) OUTPUT 5) FLAG 5) ADJU ST 5) ADJU ST Top View Front View *Tab is internally connected to GND TO-220-3 Package (U) 1 2 TO-220-5 Package (U5) SPX29 151 1) ENABL E 2) INPUT 3 3) GND 4) OUTPUT 5) FLAG V IN GND V OUT Front View Rev A 8/15/06 SPX29 152 1) ENABL E SPX29 153 2) INPUT 3) GND 4) OUTPUT 2) INPUT 3) GND 4) OUTPUT 5) ADJU ST 5) ADJU ST 1) FLAG 1 2 3 4 5 Top View SP29150/51/52/53 1.5A Low Dropout Voltage Regulator © Copyright 2006 Sipex Corporation Package: 3 Pin TO-263 e Seating Plane A e/2 C2 L SIDE VIEW H D 2 Chamfer optional c 3 e See Detail C b b2 Gauge Plane Seating Plane FRONT VIEW θ L3 A L DETAIL C Thermal Pad 3 Pin TO-263 JEDEC TO-263 (L1) Inches Controlling Dimension SYMBOL D BACK VIEW e Rev A 8/15/06 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: SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 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 © Copyright 2006 Sipex Corporation Package: 5 Pin TO-263 e Seating Plane A e/2 C2 L Chamfer optional D 3 2 4 H 5 c SIDE VIEW See Detail C b e FRONT VIEW Gauge Plane Seating Plane θ L Thermal Pad BACK VIEW L3 DETAIL C 5 Pin TO-263 JEDEC TO-263 (L1) Dimensions in Inches: Controlling Dimension D e Rev A 8/15/06 A 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: SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 10 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 © Copyright 2006 Sipex Corporation Package: 3 Pin TO-220 Rev A 8/15/06 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 11 © Copyright 2006 Sipex Corporation Package: 5 Pin TO-220 Rev A 8/15/06 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 12 © Copyright 2006 Sipex Corporation ORDERING INFORMATION 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 OUTPUT VOLTAGE 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% 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 PACKAGE 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 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 8/15/06 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 13 © Copyright 2006 Sipex Corporation