(SPX29150 - SPX29153) Low Dropout Voltage Regulator

www.DataSheet4U.com 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 + 10µ F VOUT VIN + 6.8µ F 1 SPX29152 4 2 GND 3 5 ADJ VOUT + R1 10µ F R2 Figure 1. Fixed Output Linear Regulator Rev A 8/5/06 Figure 2. Adjustable Output Linear Regulator © Copyright 2006 Sipex Corporation SP2950/5/52/53 .5A Low Dropout voltage Regulator  ABSOLUTE MAXIMUM RATINGS Storage Temperature Range........................-65°C to +150°C Operating Junction Temperature Range......-40°C to +125°C Input Voltage (Note 7)......................................................6v 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 .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 ≤Iout≤1.5A, 3.5V≤Vin ≤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 ≤Iout≤1.5A, 4.3V≤Vin ≤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 ≤Iout≤1.5A, 6.0V≤Vin ≤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) ≤ Vin ≤ 6v v 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 = 0µf Cl = 33µf 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 µvrms .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=250µA 0. 200 .00 2.00 300 400 UA mV SP2950/5/52/53 .5A Low Dropout voltage Regulator © 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 µA µA µA 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), 2.5V≤Vin ≤ 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 © 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 = 0µf .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 © 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 = 10µF 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 = 0µf 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 © 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 © 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 con