SPX29300/01/02/03 ® 3A High Current, Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response Time FEATURES ■ Adjustable Output Down To 1.25V ■ 1% Output Accuracy ■ Output Current of 3A ■ Low Dropout Voltage of 450mV @ 3A ■ 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 SPX29300 3 Pin TO-263 1 VIN 2 3 GND VOUT Now Available in Lead Free Packaging APPLICATIONS ■ Powering VGA & Sound Card ■ Power PC™ Supplies ■ SMPS Post Regulator ■ High Efficiency “Green” Computer Systems ■ High Efficiency Linear Power Supplies ■ Constant Current Regulators ■ Adjustable Power Supplies ■ Battery Charger DESCRIPTION The SPX29300/01/02/03 are 3A, highly accurate voltage regulators with a low drop out voltage of 450mV dropout (typical) @ 3A. 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 SPX29300/01/02/03 are offered in 3 & 5-pin TO-220 & TO-263 packages. For a 1.5A version, refer to the SPX29150 data sheet. TYPICAL APPLICATIONS CIRCUITS 1 SPX29300 3 VIN 6.8µF + 2 + 1 SPX29302 V IN VOUT 6.8µF 10µF + 2 GND 3 4 5 ADJ V OUT + R1 10µF R2 Figure 1. Fixed Output Linear Regulator Date: 5/25/04 Figure 2. Adjustable Output Linear Regulator SPX29300/01/02/03 3A 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 1) .................................................... 16V ELECTRICAL CHARACTERISTICS (Note 1) 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. TYP SPX29300/01 MIN MAX IOUT = 10mA 10mA ≤ IOUT ≤ 3A, 2.8V ≤ VIN ≤ 16V 1.800 1.800 1.782 1.764 1.818 1.836 V IOUT = 10mA 10mA ≤ IOUT ≤ 3A, 3.5V ≤ VIN ≤ 16V 2.500 2.500 2.475 2.450 2.525 2.550 V IOUT = 10mA 10mA ≤ IOUT ≤ 3A, 4.3V ≤ VIN ≤ 16V 3.300 3.300 3.267 3.234 3.333 3.366 V IOUT = 10mA 10mA ≤ IOUT ≤ 3A, 6.0V ≤ VIN ≤ 16V 5.000 5.000 4.950 4.900 5.050 5.100 V Line Regulation IOUT=10mA,(VOUT+1V) ≤ VIN ≤ 16V 0.06 Load Regulation VIN=VOUT+1V, 10mA≤ IOUT ≤ IFL (Note 2) 0.2 1 % ∆V/∆T VOUT Temp Coefficient (Note 6) 20 100 ppm/°C Dropout Voltage, except 1.8V, (Note 3) IOUT=100mA IOUT=1.5A IOUT=3.0A 50 150 450 175 mV Ground Current (Note 5) IOUT=1.5A IOUT=3.0A 10 37 35 Ground Pin Current at Dropout VIN=0.5V less than specified VOUT, IOUT=10mA 0.9 Current Limit VOUT=0V (Note 4) 4.5 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) PARAMETER CONDITIONS UNITS Fixed Voltage Options 1.8V Version Output Voltage 2.5V Version Output Voltage 3.3V Version Output Voltage 5.0V Version Output Voltage All Voltage Options SPX29300/01/02/03 1.240 Adjust Pin Bias Current Reference Voltage Temp. Coeff. 40 (Note 7) Adjust Pin Bias Current Temp. Coeff. Date: 5/25/04 % 700 mA mA 3.0 A µVRMS 1.228 1.215 1.252 1.265 V 1.203 1.277 V 80 120 nA 20 ppm/°C 0.1 nA/°C SPX29300/01/02/03 3A 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 SPX29301/03 UNITS Output Leakage Current VOH=16V 0.01 1 2 µA Output Low Voltage Device set for 5V,VIN=4.5V, IOL=250µA 220 300 400 mV Upper Threshold Voltage Device set for 5V, (Note 9) 60 Lower Threshold Voltage Device set for 5V, (Note 9) 75 Hysteresis Device set for 5V, (Note 9) 15 40 25 mV 95 140 mV mV SPX29301/02 ENABLE Input Input Logic Voltage Low (OFF) High (ON) VIN<10V ENABLE Input Pin VEN=16V 0.8 V 600 750 1 2 µA 2.4 100 VEN=0.8V Regulator Output Current in Shutdown (Note 10) 10 Thermal Resistance TO-200 Junction to Case, at Tab TO-220 Junction to Ambient TO-263 Junction to Case, at Tab TO-263 Junction to Ambient 3 60 3 60 µA µA 500 °C/W NOTES: Note 1: Maximum positive supply voltage of 20V must be of limited duration (<100ms) and duty cycle of less than 1%. The maximum continuous supply voltage is 16V. Note 2: Full load current (IFL) is defined as 3.0A. Note 3: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value. Note 4: VIN = VOUT (NOMINAL) +1V. For example, use VIN = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise. Note 5: 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 6: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range Note 7: Thermal regulation is defined as the change in output voltage at time T after a change in power dissipation is applied, excluding load / line regulation effects. Specifications for a 200mA load pulse as VIN = 20V (a 4W pulse) for t = 10ms. Note 8: VREF≤ VOUT ≤ (VIN-1), 2.3V≤VIN ≤ 16V, 10mA ≤ IL ≤ IFL, Tj < Tjmax. Note 9: 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 10: VEN ≤ 0.8V and VIN ≤ 16V, VOUT = 0. 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 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 3 © Copyright 2004 Sipex Corporation TYPICAL PERFORMANCE CHARACTERISTICS 1200 2.540 2.530 2.520 800 Vout (V) Vdropout (mV) 1000 600 85°C 400 25°C 2.500 2.490 2.480 3.3V Device CL = 10µF Vin = 3.2V 200 2.510 2.5V Device IL = 10mA CL = 10µF 2.470 2.460 0 4 0 1.0 2.0 6 8 10 12 14 16 3.0 Vin (V) IL (A) Figure 3. Dropout Voltage vs Load Current Figure 4. Line Regulation 80.0 3.310 70.0 3.305 60.0 25°C 85°C Vout (V ) Ignd (mA) 50.0 40.0 30.0 3.300 3.295 3.290 20.0 3.3V Device Vin = 4.3V CL = 10µF 10.0 3.3V Device Vin = 4.3V CL = 10µF 3.285 3.280 0.0 0 1.0 2.0 0 3.0 1.0 2.0 3.0 IL (A) IL (A) Figure 5. Ground Current vs Load Current Figure 6. Load Regulation 1.9 1.8 Vth (V) 1.7 1.6 3.3V Device 1.5 1.4 1.3 1.2 -40 -20 0 20 40 60 Temperature ( o C) 80 100 120 Figure 7. Enable Threshold vs Temperature Date: 5/25/04 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 4 © Copyright 2004 Sipex Corporation APPLICATION INFORMATION The SPX29300/01/02/03 incorporates protection against over-current faults, reversed load insertion, over temperature operation, and positive and negative transient voltage. response is needed. If the power source has a high AC impedance, a 0.1µF ceramic capacitor between input & ground is recommended. Minimum Load Current To ensure a proper behavior of the regulator under light load, a minimum load of 5mA for SPX29300/01/02/03 is required. Thermal Considerations Although the SPX29300/01/02/03 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. Adjustable Regulator Design The SPX29302/03 are adjustable regulators that can be programmed to any value between 1.25V and 16V using 2 resistors, R1 and R2. The relationship between the resistors is: R1 = R2(Vout/1.240-1). 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 The power calculated under these conditions is: PD = (VIN – VOUT) * IOUT = 7.5W. Error Flag The SPX29301/03 features an error flag that indicates either an over current or under voltage condition. The flag output goes low, sinking 10mA when either condition occurs. Enable Input The SPX29301/02 have an Enable function that switches the regulator on and off. Their thresholds are TTL compatible. When the regulator is active, approximately 20 uA flows through the Enable pin. Typical Application Circuits Figure 1 represents at typical fixed output regulator. Figure 2 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 5 mA. A minimum value of 10kohms is recommended for R2 with a range between 10kohms and 47 kohms. And the junction temperature is calculated as TJ = TA + PD * (θHA + θCH + θJC) or 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 Date: 5/25/04 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 5 © Copyright 2004 Sipex Corporation PACKAGE: 3 PIN TO-220 E A B E/2 E2 SEATING PLANE A øP Q A1 H1 D D1 L1 CHAMFER OPTIONAL 1 D C C D L b e A C e1 A2 Dimensions in (mm) 3 PIN TO-220 JEDEC TO-220 (AB) Variation MIN .140 - .190 A1 .020 - .055 A2 .080 - .115 b .015 .027 .040 b2 .045 - .070 c .014 - .024 D D1 .560 - .650 D2 .330 .480 - .355 .507 E E1 E2 .380 .270 - - .420 .350 .030 b WITH PLATING c BASE METAL CONTACT AREA .100 BSC e e1 Date: 5/25/04 NOM MAX A .200 BSC H1 L1 .230 - .270 - - .250 L2 - - - ∆P Q .139 - .100 - 3 PIN TO-220 .161 .135 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 6 © Copyright 2004 Sipex Corporation PACKAGE: 5 PIN TO-220 E A B E/2 SEATING PLANE A øP Q F H1 D D1 D L1 D C C CHAMFER OPTIONAL D L A b e C1 e1 J1 5 PIN TO-220 Dimensions in (inches) MIN NOM MAX A .160 - .190 b .015 - .040 C1 .014 - .022 D .560 - .590 E e .385 - .415 .385 - .415 e1 .062 - .072 F H1 .045 - .055 .234 - .258 J1 L .090 - .115 .540 - .560 L1 - .250 ∆P .146 - .156 Q .103 - .113 U - .30 - V - .24 - Date: 5/25/04 5 PIN TO-220 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 7 © Copyright 2004 Sipex Corporation PACKAGE: 3 PIN TO-263 SEATING PLANE E A E/2 C2 L1 H D 1 2 3 B B c e See View C b b2 SEATING PLANE GAUGE PLANE 0º-8º A1 L 3-PIN TO-263 JEDEC TO-263 (AA) Variation Dimensions in inches MIN A .160 - .190 A1 .000 - .010 b .020 - .039 c .015 - D .330 D1 .270 E E1 .380 - .380 - .420 .245 - - WITH PLATING c .100 BSC H .575 - .625 L .070 - .110 L1 - - .066 L2 - - .070 L3 b .029 - e View C NOM MAX BASE METAL SECTION B-B .010 BSC 3 PIN TO-263 Date: 5/25/04 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 8 © Copyright 2004 Sipex Corporation PACKAGE: 5 PIN TO-263 SEATING PLANE A (DATUM A) C2 H E 1 2 3 5 4 c L2 (E) E L1 D1 5X b E1 4X e 5 PIN TO-263 JEDEC TO-263 (BB) Variation Dimensions in (mm) MIN NOM MAX A .160 - A1 0 - .010 b .020 - .039 c .015 - .029 c2 .045 .190 - D1 .270 - - E .380 - .420 E1 .245 - - e L3 L (b) .067 BSC H .575 - .625 L .070 - .110 L1 - - .066 L2 - - .070 L3 0º-8º .023 WITH PLATING c .010 BSC BASE METAL CONTACT AREA 5 PIN TO-263 Date: 5/25/04 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 9 © Copyright 2004 Sipex Corporation PACKAGE PINOUTS TO-263-3 Package (T) 1 2 TO-263-5 Package (T5) 1 3 V IN GND VOUT Front View 2 3 4 5 SPX29301 1) ENABLE 2)INPUT 3) GND 4) OUTPUT 5) FLAG SPX29302 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX29303 1) FLAG 2)INPUT 3) GND 4) OUTPUT 5) ADJUST SPX29301 1) ENABLE 2)INPUT 3) GND 4) OUTPUT 5) FLAG SPX29302 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX29303 1) FLAG 2)INPUT 3) GND 4) OUTPUT 5) ADJUST Top View TO-220-3 Package (U) 1 2 TO-220-5 Package (U5) 3 GND VIN V OUT Front View 1 2 34 5 Top View *Tab is internally connected to GND ORDERING INFORMATION PART NUMBER ACCURACY OUTPUT VOLTAGE PACKAGE SPX29300U-1.8 1.0% 1.8V 3 lead TO-220 SPX29300U-2.5 1.0% 2.5V 3 lead TO-220 SPX29300U-3.3 1.0% 3.3V 3 lead TO-220 SPX29300U-5.0 1.0% 5.0V 3 lead TO-220 SPX29300T-1.8 1.0% 1.8V 3 lead TO-263 SPX29300T-1.8/TR 1.0% 1.8V 3 lead TO-263 SPX29300T-2.5 1.0% 2.5V 3 lead TO-263 SPX29300T-2.5/TR 1.0% 2.5V 3 lead TO-263 SPX29300T-3.3 1.0% 3.3V 3 lead TO-263 SPX29300T-3.3/TR 1.0% 3.3V 3 lead TO-263 SPX29300T-5.0 1.0% 5.0V 3 lead TO-263 SPX29300T-5.0/TR 1.0% 5.0V 3 lead TO-263 Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX29300T-5.0/TR = standard; SPX29300T-L-5.0/TR = lead free /TR = Tape and Reel Pack quantity is 500 for TO-263. Sipex Corporation Headquarters 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600m Date: 5/25/04 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 10 © Copyright 2004 Sipex Corporation ORDERING INFORMATION PART NUMBER ACCURACY OUTPUT VOLTAGE SPX29301U5-1.8 1.0% 1.8V 5 lead TO-220 PACKAGE SPX29301U5-2.5 1.0% 2.5V 5 lead TO-220 SPX29301U5-3.3 1.0% 3.3V 5 lead TO-220 SPX29301U5-5.0 1.0% 5.0V 5 lead TO-220 SPX29301T5-1.8 1.0% 1.8V 5 lead TO-263 SPX29301T5-1.8/TR 1.0% 1.8V 5 lead TO-263 SPX29301T5-2.5 1.0% 2.5V 5 lead TO-263 SPX29301T5-2.5/TR 1.0% 2.5V 5 lead TO-263 SPX29301T5-3.3 1.0% 3.3V 5 lead TO-263 SPX29301T5-3.3/TR 1.0% 3.3V 5 lead TO-263 SPX29301T5-5.0 1.0% 5.0V 5 lead TO-263 SPX29301T5-5.0/TR 1.0% 5.0V 5 lead TO-263 SPX29302T5 1.0% Adj 5 lead TO-263 SPX29302T5/TR 1.0% Adj 5 lead TO-263 SPX29302U5 1.0% Adj 5 lead TO-220 SPX29303T5 1.0% Adj 5 lead TO-263 SPX29303T5/TR 1.0% Adj 5 lead TO-263 SPX29303U5 1.0% Adj 5 lead TO-220 Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX29302T5/TR = standard; SPX29302T5-L-5.0/TR = lead free /TR = Tape and Reel Pack quantity is 500 for TO-263. Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600m 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 SPX29300/01/02/03 3A Low Dropout Voltage Regulator 11 © Copyright 2004 Sipex Corporation