SPX29150/51/52/53 ® 1.5A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response Time 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 & Sound Card ■ LCD Monitors ■ USB Power Supply ■ Power PC™ Supplies ■ SMPS Post Regulator ■ High Efficiency “Green” Computer Systems ■ High Efficiency Linear Power Supplies ■ Portable Instrumentation ■ Constant Current Regulators ■ Adjustable Power Supplies ■ Battery Charger Now Available in Lead Free Packaging Refer to page 8 for pinouts. DESCRIPTION The SPX29150/51/52/53 are 1.5A, highly accuracy voltage regulators with a low drop out voltage of 390mV dropout (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 & 5-pin TO-220 & TO-263 packages. For a 3A version, refer to the SPX29300 data sheet. TYPICAL APPLICATION CIRCUIT 1 SPX29150 3 VIN 6.8 F + 2 VOUT + 1 SPX29152 V IN 10 F 6.8 F + 2 GND 3 4 5 ADJ V OUT + R1 10 F R2 Figure 1. Fixed Output Linear Regulator Date:5/25/04 Figure 2. Adjustable Output Linear Regulator SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 1 © Copyright 2004 Sipex Corporation ABSOLUTE MAXIMUM RATINGS Lead Temperature (soldering, 5 seconds) ................260°C 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. PARAMETER CONDITIONS TYP SPX29150/51 MIN MAX UNITS Fixed Voltage Options 1.8V Version Output Voltage IOUT = 10mA 10mA ≤ IOUT ≤ 1.5A, 2.5V ≤ VIN ≤ 16V 1.8 1.8 1.782 1.764 1.818 1.836 V IOUT = 10mA 10mA ≤ IOUT ≤ 1.5A, 3.5V ≤ VIN ≤ 16V 2.5 2.5 2.475 2.450 2.525 2.550 V IOUT = 10mA 10mA ≤ IOUT ≤ 1.5A, 4.3V ≤ VIN ≤ 16V 3.3 3.3 3.267 3.234 3.333 3.366 V IOUT = 10mA 10mA ≤ IOUT ≤ 1.5A, 6.0V ≤ VIN ≤ 16V 5.0 5.0 4.950 4.900 5.050 5.100 V IOUT=10mA,(VOUT+1V) ≤ VIN ≤ 16V 0.1 Load Regulation VIN=VOUT+1V, 10mA≤ IOUT ≤ IFULLLOAD 0.2 1 % ∆V/∆T VOUT Temp Coefficient 13 100 ppm/°C Dropout Voltage (Note 1, except 1.8V) IOUT=100mA IOUT=750mA IOUT=1.5A 70 230 390 200 mV Ground Current (Note 3) IOUT=750mA, VIN=VOUT+1V IOUT=1.5A 12 45 25 Ground Pin Current at Dropout VIN=0.1V less than specified VOUT, IOUT=10mA 0.9 2.5V Version Output Voltage 3.3V Version Output Voltage 5.0V Version Output Voltage All Voltage Options Line Regulation SPX29150/51/52/53 Current Limit VOUT=0V (Note 2) 2.2 Output Noise Voltage (10Hz to 100kHz) IL=100mA CL=10µF 400 CL=33µF 260 Reference Voltage Adjustable version only Reference Voltage Adjustable version only (Note 8) 1.240 Adjust Pin Bias Current Reference Voltage Temp. Coeff. 40 (Note 4) Adjust Pin Bias Current Temp. Coeff. Date:5/25/04 % 600 mA mA 1.7 A µVRMS 1.228 1.215 1.252 1.265 1.203 1.277 80 120 V nA 13 ppm/°C 0.1 nA/°C SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 2 0.5 © Copyright 2004 Sipex Corporation 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. PARAMETER CONDITIONS FLAG OUTPUT (ERROR COMPARATOR) TYP MIN MAX UNITS SPX29150/29151/29153 Output Leakage Current VOH=16V 0.1 1 2 µA Output Low Voltage Device set for 5V,VIN=4.5V, IOL=250µA 200 300 400 mV 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 40 25 mV 95 140 mV mV SPX29151/29152 ENABLE Input Input Logic Voltage Low (OFF) High (ON) VIN<10V ENABLE Input Pin VEN=16V 0.8 V 600 750 1 2 µA 500 µA 2.4 100 VEN=0.8V Regulator Output Current in Shutdown (Note 6) 10 Thermal Resistance TO-200 Junction to Case, at Tab TO-220 Junction to Ambient TO-263Junction to Case, at Tab TO-263 Junction to Ambient 3 60 3 60 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. Threshold 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 Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 3 © Copyright 2004 Sipex Corporation TYPICAL PERFORMANCE CHARACTERISTICS 3.310 3.320 3.315 3.305 Vout (V ) Vout (V) 3.310 3.305 3.300 3.295 3.295 3.290 3.290 3.3V Device IL = 10mA CL = 10 F 3.285 3.280 3.300 4 6 8 10 12 3.3V Device Vin = 4.3V CL = 10 F 3.285 14 3.280 16 0 0.25 0.5 0.75 Figure 3. Line Regulation 1.25 1.5 Figure 4. Load Regulation 80.0 300 70.0 280 60.0 260 50.0 Ignd (uA) Ignd (mA) 1 IL (A) Vin (V) 40.0 30.0 10.0 220 3.3V Device IL = 10mA CL = 10 F 200 3.3V Device Vin = 4.3V CL = 10 F 20.0 240 180 4 0.0 0 0.25 0.5 0.75 IL (A) 1 1.25 6 8 1.5 Figure 5. Ground Current vs Load Current 10 Vin (V) 12 14 16 Figure 6. Ground Current vs Input Voltage 600 100 90 500 Vdropout (mV) Ignd (mA) 80 70 60 50 40 30 20 3.3V Device Vin = 3.2V 10 CL = 10 F 400 300 200 3.3V Device CL = 10 F 100 0 0 0 0.25 0.5 0.75 1 1.25 1.5 0 0.25 IL (A) 0.75 1 1.25 1.5 IL (A) Figure 7. Ground Current vs Load Current in Dropout Date:5/25/04 0.5 Figure 8. Dropout Voltage vs Load Current SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 4 © Copyright 2004 Sipex Corporation 280 3.320 270 3.310 260 3.300 250 3.290 240 3.280 Vout Ignd (uA) TYPICAL PERFORMANCE CHARACTERISTICS 230 220 3.260 3.3V Device Vin = 4.3V IL = 10mA CL = 10 F 210 200 190 3.250 3.240 3.230 180 -40 -20 0 20 40 60 Temperature (o C) 80 100 3.220 -40 120 Figure 9. Ground Current vs Temperature at ILOAD=10mA 3.3V Device Vin = 4.3V IL = 10mA CL = 10 F -20 0 20 40 60 Temperature (o C) 80 100 120 Figure 10. Output Voltage vs Temperature at ILOAD=10mA 30 7.00 6.80 29 3.3V Device Vin = 4.3V IL = 500mA CL = 10 F 6.40 6.20 3.3V Device Vin = 3.2V IL = 750mA CL = 10 F 28 27 Ignd (mA) 6.60 Ignd (mA) 3.270 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) 80 100 20 120 -40 Figure 11. Ground Current vs Temperature at ILOAD=500 -20 0 20 40 60 o Temperature ( C) 80 100 120 Figure 12. Output Voltage vs Temperature in Dropout at ILOAD=750mA 52.0 100 50.0 95 90 46.0 Ignd (mA) Ignd (mA) 48.0 44.0 42.0 3.3V Device Vin = 4.3V IL = 1.5A CL = 10 uF 40.0 38.0 85 3.3V Device Vin = 3.2V IL = 1.5A CL = 10 F 80 75 36.0 -40 -20 0 20 40 60 80 100 70 120 -40 Temperature (o C) Figure 13. Ground Current vs Temperature at ILOAD=1.5A Date:5/25/04 -20 0 20 40 60 o Temperature ( C) 80 100 120 Figure 14. Output Current vs Temperature in Dropout at ILOAD=1.5A SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 5 © Copyright 2004 Sipex Corporation TYPICAL PERFORMANCE CHARACTERISTICS 350 500 330 480 460 290 Vdropout (mV) Vdropout (mV) 310 270 250 230 210 3.3V Device 190 IL = 750mA CL = 10 F 170 420 400 380 3.3V Device IL = 750mA CL = 10 F 360 340 320 -40 150 -40 -20 0 20 40 60 Temperature (o C) 80 100 -20 0 120 20 40 60 o Temperature ( C) 80 100 120 Figure 16. Dropout Voltage vs Temperature at ILOAD=1.5A Figure 15. Dropout Voltage vs Temperature at ILOAD=750mA 2.00 35 1.90 30 3.3V Device 1.80 25 1.70 20 1.60 1.50 Vth (V) Ienable (uA) 440 15 1.40 1.30 3.3V Device 10 1.20 5 0 -40 1.10 1.00 -20 0 20 40 60 o Temperature ( C) 80 100 120 -40 Figure 17. ENABLE Current vs Temperature at VEN=16V Date:5/25/04 -20 0 20 40 60 Temperature (o C) 80 100 120 Figure 18. ENABLE Threshold vs Temperature SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 6 © Copyright 2004 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 voltage. Reliable operation is insured. 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. 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. TO-220 Design Example: Assume that VIN = 10V, VOUT = 5V, IOUT = 1.5A, TA = 50°C, θHA= 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 Minimum Load Current To ensure a proper behavior of the regulator under light load, a minimum load of 5mA for SPX29150/51/52/53 is required. And the junction temperature is calculated as TJ = TA + PD * (θHA + θCH + θJC) or TJ = 50 + 7.5 * (1+2+3) = 95°C Typical Application Circuits Figure 19 represents at 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)]. For best results, the total series resistance should be small enough to pass a minimum regulator load current of 5mA. 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. 1 SPX29150 VIN 6.8 F + 2 3 VOUT + 1 SPX29152 V IN 10 F 6.8 F + 2 GND 3 4 5 ADJ V OUT + R1 10 F R2 Figure 19. Fixed Output Linear Regulator Date:5/25/04 Figure 20. Adjustable Output Linear Regulator SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 7 © Copyright 2004 Sipex Corporation PACKAGE PINOUTS TO-263-3 Package (T) 1 2 V IN 1 2 3 4 5 3 GND TO-263-5 Package (T5) V OUT SPX29151 SPX29152 SPX29153 1) ENABLE 1) ENABLE 1) FLAG 2) INPUT 2) INPUT 3) GND 2) INPUT 3) GND 4) OUTPUT 4) OUTPUT 3) GND 4) OUTPUT 5) FLAG 5) ADJUST 5) ADJUST Top View Front View TO-220-3 Package (U) 1 2 3 V IN GND V OUT Front View Date:5/25/04 TO-220-5 Package (U5) 1 2 3 4 5 SPX29151 SPX29152 SPX29153 1) ENABLE 1) ENABLE 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) FLAG 2) INPUT 2) INPUT 3) GND 4) OUTPUT 3) GND 4) OUTPUT 5) ADJUST 5) ADJUST *Tab is internally connected to GND Top View SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 8 © Copyright 2004 Sipex Corporation ORDERING INFORMATION PART NUMBER ACCURACY OUTPUT VOLTAGE PACKAGE SPX29150U-1.8 1.0% 1.8V 3 lead TO-220 SPX29150U-2.5 1.0% 2.5V 3 lead TO-220 SPX29150U-3.3 1.0% 3.3V 3 lead TO-220 SPX29150U-5.0 1.0% 5.0V 3 lead TO-220 SPX29150T-1.8 1.0% 1.8V 3 lead TO-263 SPX29150T-1.8/TR 1.0% 1.8V 3 lead TO-263 SPX29150T-2.5 1.0% 2.5V 3 lead TO-263 SPX29150T-2.5/TR 1.0% 2.5V 3 lead TO-263 SPX29150T-3.3 1.0% 3.3V 3 lead TO-263 SPX29150T-3.3/TR 1.0% 3.3V 3 lead TO-263 SPX29150T-5.0 1.0% 5.0V 3 lead TO-263 SPX29150T-5.0/TR 1.0% 5.0V 3 lead TO-263 SPX29151U5-1.8 1.0% 1.8V 5 lead TO-220 SPX29151U5-2.5 1.0% 2.5V 5 lead TO-220 SPX29151U5-3.3 1.0% 3.3V 5 lead TO-220 SPX29151U5-5.0 1.0% 5.0V 5 lead TO-220 SPX29151T5-1.8 1.0% 1.8V 5 lead TO-263 SPX29151T5-1.8/TR 1.0% 1.8V 5 lead TO-263 SPX29151T5-2.5 1.0% 2.5V 5 lead TO-263 SPX29151T5-2.5/TR 1.0% 2.5V 5 lead TO-263 SPX29151T5-3.3 1.0% 3.3V 5 lead TO-263 SPX29151T5-3.3/TR 1.0% 3.3V 5 lead TO-263 SPX29151T5-5.0 1.0% 5.0V 5 lead TO-263 SPX29151T5-5.0/TR 1.0% 5.0V 5 lead TO-263 SPX29152T5 1.0% Adj 5 lead TO-263 SPX29152T5/TR 1.0% Adj 5 lead TO-263 SPX29152U5 1.0% Adj 5 lead TO-220 SPX29153T5 1.0% Adj 5 lead TO-263 SPX29153T5/TR 1.0% Adj 5 lead TO-263 SPX29153U5 1.0% Adj 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 Corporation 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. Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator 9 © Copyright 2004 Sipex Corporation