SPX1202R-3.3

® SPX1202 600mA Low Dropout Linear Regulator FEATURES ■ Guaranteed 600mA Output ■ Three Terminal Adjustable or Fixed 2.5V, 3V and 3.3V ■ Low Quiescent Current ■ Low Dropout Voltage of 1.1V at Full Load ■ 0.2% Line and 0.3% Load Regulation ■ Voltage Temperature Stability 0.05% ■ Overcurrent and Thermal Protection ■ Available Packages: SOT-223,TO-252, TO-220, and TO-263 APPLICATIONS ■ SCSI-II Active Terminator ■ Portable/ Palm Top / Notebook Computers ■ Battery Chargers ■ Disk Drives ■ Portable Consumer Equipment ■ Portable Instrumentation ■ SMPS Post-Regulator Now Available in Lead Free Packaging Refer to page 6 for pinouts. DESCRIPTION The SPX1202 is a low power positive-voltage regulator designed to satisfy moderate power requirements with a cost effective, small footprint solution. This device is an excellent choice for use in battery-powered applications and portable computers. The SPX1202 features very low quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases, quiescent current flows into the load, increasing efficiency. SPX1202 is available in adjustable or fixed 2.5V, 3V and 3.3V output voltages. The SPX1202 is offered in several 3-pin surface mount packages: SOT-223, TO-252, TO-220 and TO-263. An output capacitor of 10µF provides unconditional stability while a smaller 2.2µF capacitor is sufficient for most applications. BLOCK DIAGRAM VIN Current Limit + VOUT ICL AMP Thermal Limit VREF ADJ/GND I TL IADJ ~50µA – Date: 5/25/04 SPX1202 600mA Low Dropout Positive Linear Regulator © Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Power Dissipation ...................................... Internally Limited 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 Supply Voltage ..................................................... +20V ESD Rating .............................................................. 2kV min ELECTRICAL CHARACTERISTICS at VIN=VOUT + 1.5V, TA = 25°C, CIN = COUT = 10µF, unless otherwise specified. Limits in Boldface applies over the full operating temperature range. PARAMETER 2.5V Version Output Voltage 3.0V Version Output Voltage 3.3V Version Output Voltage All Output Options Reference Voltage Output Voltage Temperature Stability Line Regulation CONDITIONS TYP MIN MAX UNITS IOUT = 10mA, VIN = 5.00V 0 ≤ IOUT ≤ 600mA, 4.50V ≤ VIN ≤ 10V IOUT = 10mA, VIN = 5.00V 0 ≤ IOUT ≤ 600mA, 4.50V ≤ VIN ≤ 10V IOUT = 10mA, VIN = 5.00V 0 ≤ IOUT ≤ 600mA, 4.50V ≤ VIN ≤ 10V IOUT=10mA, (VIN - VOUT ) = 2V 10≤IOUT≤ 600mA, 1.4V≤(VIN-VOUT)≤ 10V (Note 1) 4.50V≤VIN≤ 12V,VOUT=3.00,IOUT=0 4.80V≤VIN≤ 12V,VOUT=3.30,IOUT=0 6.50V≤VIN≤ 12V,VOUT=5.00,IOUT=0 0≤IOUT≤ 600mA,VIN=4.50V,VOUT=3.00 0≤IOUT≤ 600mA,VIN=4.80V,VOUT=3.30 0≤IOUT≤ 600mA,VIN=6.50V,VOUT=5.0 IL =100mA IL =600mA 4.25V≤VIN≤ 6.5V (VIN-VOUT)=5V 25°C, 30mS Pulse fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP 125°C, 1000Hrs % of VOUT, 10Hz≤f≤10kHz Junction to Case, at tab 2.475 2.450 2.500 2.525 2.550 V 2.970 2.940 3.000 3.030 3.060 V 3.267 3.234 3.300 3.333 3.366 V 1.238 1.225 1.250 1.262 1.270 0.05 V % mV 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.05 5.00 50 .850 0.01 60 7.00 7.00 10.00 12.00 12.00 15.00 1.10 1.15 10.00 Load Regulation mV Dropout Voltage (Note 2) Quiescent Current Adjust Pin Current Current Limit Thermal Regulation Ripple Rejection Long Term Stability RMS Output Noise Thermal Resistance V mA µA 1.0 0.1 75 0.03 0.003 15 A %/W dB % % °C/W NOTES: Note 1: Output temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential at very low values of programmed output voltage, the minimum input supply voltage of 2V ( 2.3V over temperature) must be taken into account. Note 3: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied excluding load or line regulation effect. Date: 5/25/04 SPX1202 600mA Low Dropout Positive Linear Regulator © Copyright 2004 Sipex Corporation 2 TYPICAL PERFORMANCE CHARACTERISTICS Line Regulation at 25°C 3.320 3.315 3.310 3.305 3.300 3.295 3.290 3.285 3.280 10 100 Output Current (mA) 1000 3.330 Vout (V) 3.320 3.310 3.300 4.8 9.8 Vin (V) Output Voltage (V) Series 1 Series 2 14.8 Figure 1. Load Regulation for SPX1202M3-3.3; VIN=4.8V, COUT=2.2µF Figure 2. Line Regulation for SPX1202M3-3.3; VIN=4.8V to 16V, COUT=2.2µF Current Limit VS Temp Dropout Voltage (V) 1.3 1.2 1.1 1.0 0.9 100 200 300 400 500 600 700 800 900 1000 Output Current (mA) Current Limit (A) 2.00 1.50 1.00 0.50 0.00 -50 Series 1 Series 2 -25 0 25 50 75 100 125 Temp (°C) Figure 3. Dropout Voltage vs Output Current for SPX1202M3-3.3; VIN=4.89V, COUT=2.2µF Figure 4. Current Limit for SP1202M3-3.3; VIN=4.8V, CIN=COUT=1.0µF, IOUT pulsed from 10mA to Current Limit 3.340 SCOPE TRACING MISSING VOUT (V) 2.320 3.300 3.280 3.260 3.240 -50 Series 1 Series 2 -30 -10 10 30 50 70 90 110 130 Temp (°C) Figure 5. Current Limit for SPX1202M3-3.3, Output Voltage Deviation with IOUT=10mA to 1A Step. Figure 6. VOUT vs Temperature IOUT pilsed from 10mA to Current Limit Date: 5/25/04 SPX1202 600mA Low Dropout Positive Linear Regulator © Copyright 2004 Sipex Corporation 3 APPLICATION INFORMATION 50 X 50mm Output Capacitor To ensure the stability of the SPX1202, an output capacitor of at least 10µF (tantalum or ceramic)or 50µF (aluminum) is required. The value may change based on the application requirements of the output load or temperature range. The value of ESR can vary based on the type of capacitor used in the applications. The recommended value for ESR is 0.5Ω or less. A larger value of output capacitance (up to 100µF) can improve the load transient response. SOLDERING METHODS The SPX1202 SOT-223 package is designed to be compatible with infrared reflow or vaporphase reflow soldering techniques. During soldering, the non-active or mildly active fluxes may be used. The SPX1202 die is attached to the heatsink lead which exits opposite the input, output, and ground pins. Hand soldering and wave soldering should be avoided since these methods can cause damage to the device with excessive thermal gradients on the package. The SOT-223 recommended soldering method are as follows: vapor phase reflow and infrared reflow with the component preheated to within 65°C of the soldering temperature range THERMAL CHARACTERISTICS The thermal resistance of SPX1202 depends on the type of package and PC board layout as shown in Table 1. The SPX1202 features the internal thermal limiting to protect the device during overload conditions. Special care needs to be taken during continuous load conditions such that the maximum junction temperature does not exceed 125°C. Thermal protection is activated at >144°C and deactiviated at