SPX1521_07

Solved by SPX1521 TM 300mA Low Dropout Voltage Regulator FEATURES ■ % Output Accuracy 3.3V, 5V, at 300mA Output ■ Very Low Quiescent Current ■ 0.3V (Typ.) Dropout Voltage at 300mA ■ Extremely Tight Load and Line Regulation ■ Current & Thermal Limiting ■ Reverse Battery Protection ■ Equivalent Replacement For LT52 ■ Available in RoHS Compliant, Lead Free Packages: TO-252, SOT-223, TO-220 & TO-263 SPX1521 3 Pin TO-263 1 2 3 VOUT GND VIN DESCRIPTION The SPX52 is a low power voltage regulator. This device is an excellent choice for use in batterypowered applications such as cordless telephones, radio control systems, and portable computers. The SPX52 features very low quiescent current and very low dropout voltage. This includes a tight initial tolerance of ±1% max, and very low output temperature coefficient, making the SPX1521 useful as a low-power voltage reference. The SPX52 is offered in 3 pin TO-252, SOT-223, TO-220 & TO-263 packages. TYPICAL APPLICATIONS CIRCUIT VOUT IIN IN OUT 5V IL SPX1521 0.1µF + GND + 2.2µF LOAD IIN = IL + IG IG May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation  Power Dissipation ........................................................ Internally Limited Lead Temp. (Soldering, 5 Seconds) ............................................. 260°C . Storage Temperature Range ........................................ -65°C to +50°C . Operating Junction Temperature Range ...................... -40°C to +25°C Input Supply Voltage................................................... -20V to +20V ABSOLUTE MAXIMUM RATINGS Shutdown Input Voltage................................................... -0.6V to +6.5V ESD Rating ............................................................................... 2kV Min . Electrical characteristics at VIN = 6V, IO = mA, COUT = 2.2µF, TA= 25°C, unless otherwise specified. Boldface applies over the full operating temperature range. PARAMETER 3.3V Version Output Voltage Reverse Output Current 5.0V Version Output Voltage Reverse Output Current All Voltage Options Output Voltage Temperature Coefficient Line Regulation Load Regulation (Note 3) Dropout Voltage (Note 5) Ground Current Current Limit Ripple Rejection Input Reverse Leakage Current CONDITIONS (Note 2) mA ≤ IL ≤ 300mA VOUT= 3.3V, VIN= 0V mA ≤ IL ≤ 300mA VOUT= 5.0V, VIN= 0V (Note1) 6V ≤ VIN ≤ 20V (Note 4) IL= to 300mA IL=mA IL=300mA IL=mA IL=0mA IL=50mA IL=00mA IL=300mA VOUT=0 VIN -VOUT=V(Avg), VRIPPLE=0.5Vp-p, FRIPPLE=20Hz, ILOAD=50mA VIN= -20V, VOUT=0V TYP MIN MAX ELECTRICAL CHARACTERISTICS UNITS 3.3 3.3 6 5.0 5.0 6 20 1.5 4 0.3 0.30 100 350 1.5 2 5 330 58 3.267 3.217 4.950 4.880 3.333 3.382 25 5.050 5.120 25 100 20 20 30 0.7 0.25 0.55 0.70 150 500 3 6 14 500 V µA V µA ppm/°C mV mV V 50 µA mA mA dB 1.0 mA Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. Note 2: Unless otherwise specified all limits are guaranteed for Tj = 25°C, VIN = 6V, IL = mA and CL = 2.2µF. Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 4: Line regulation for the SPX52 is tested at 25°C for IL =  mA. For TJ = 25°C, line regulation is guaranteed by design. Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value measured at V differential. May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 2 APPLICATION INFORMATION External Capacitors The stability of the SPX52 requires a 2.2µF or greater capacitor between output and ground. Oscillation could occur without this capacitor. Most types of tantalum or aluminum electrolytic works fine here. For operations of below -25°C solid tantalum is recommended since the many aluminum types have electrolytes that freeze at about -30°C. The ESR of about 5Ω or less and resonant frequency above 500kHz are the most important parameters in the value of the capacitor. The capacitor value can be increased without limit. The SPX52, unlike other low dropout regulators will remain stable and in regulation with no load in addition to the internal voltage divider. This feature is especially important in applications like CMOS RAM keep-alive. If there is more than 0 inches of wire between the input and the AC filter capacitor, or if a battery is used as the input, then a 0.µF tantalum or aluminum electrolytic capacitor should be placed from the input to the ground. Reducing Output Noise It may be an advantage to reduce the AC noise present at the output. One way is to reduce the regulator bandwidth by increasing the size of the output capacitor. Increasing the capacitor from µF to 220µF only decreases the noise from 430µV to 60µVrms for a 00kHz bandwidth at 5V output. Note: Tab is connected to GND SOT-223 (M3) TO-263-3 (T) TO-220-3 (U) PINOUTS TO-252 (R) 3 VIN GND VOUT SPX1521 1 2 3 1 SPX1521 2 3 SPX1521 1 2 3 2 1 VIN GND VOUT Top View Front View VOUT GND VIN Top View Thermal Resistance (Theta JA) SOT-223 ------62.3ºC/W TO-262 ------3.4ºC/W TO-220 ------29.4ºC/W TO-252 ------50.0ºC/W VOUT GND VIN Front View May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 3 PACKAGE: 3 PIN TO-263 May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 4 PACKAGE: 3 PIN TO-220 May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 5 PACKAGE: 3 PIN TO-252 May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 6 PACKAGE: 3 PIN SOT223 May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 7 ORDERING INFORMATION Package RoHS Status Code SOT-223-3 SOT-223-3 SOT-223-3 TO-252 TO-263-3 TO-252 TO-252 TO-252 TO-252 TO-252 TO-252 TO-252 TO-263-3 TO-263-3 TO-263-3 TO-263-3 TO-263-3 TO-263-3 TO-263-3 TO-220-3 TO-220-3 TO-220-3 TO-220-3 ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ Active Active Active EOL EOL OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS OBS Part Number SPX52M3-L-3-3 SPX52M3-L-5-0 SPX52M3-L-5-0/TR SPX52R-3-3 SPX52T-L-5-0 SPX52R-3-3/TR SPX52R-5-0 SPX52R-5-0/TR SPX52R-L-3-3 SPX52R-L-3-3/TR SPX52R-L-5-0 SPX52R-L-5-0/TR SPX52T-3-3 SPX52T-3-3/TR SPX52T-5-0 SPX52T-5-0/TR SPX52T-L-3-3 SPX52T-L-3-3/TR SPX52T-L-5-0/TR SPX52U-3-3 SPX52U-5-0 SPX52U-L-3-3 SPX52U-L-5-0 Pack Type Tube Tube Tape & Reel Tube Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tape & Reel Tube Tube Tube Tube Pack Qty 78 78 2500 77 50 2500 77 2500 77 2500 77 2500 50 500 50 500 50 500 500 50 50 50 50 Solved by Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 TM 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. May5-07 SPX52 300mA Low Dropout Voltage Regulator © 2007 Sipex Corporation 8