SPX1521M3-L-5-0

SPX1521 Solved by TM 300mA Low Dropout Voltage Regulator FEATURES ■ 1% 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 LT1521 ■ 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 SPX1521 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 SPX1521 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 SPX1521 is offered in 3 pin TO-252, SOT-223, TO-220 & TO-263 packages. TYPICAL APPLICATIONS CIRCUIT IIN VOUT OUT IN 5V IL SPX1521 0.1µF + + GND LOAD IG IIN = IL + IG May15-07 2.2µF SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation ABSOLUTE MAXIMUM RATINGS Shutdown Input Voltage...................................................-0.6V to +6.5V ESD Rating.................................................................................2kV Min Power Dissipation......................................................... Internally Limited Lead Temp. (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 to +20V ELECTRICAL CHARACTERISTICS Electrical characteristics at VIN = 6V, IO = 1mA, 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) TYP MIN MAX UNITS 1mA ≤ IL ≤ 300mA VOUT= 3.3V, VIN= 0V 3.3 3.3 16 3.267 3.217 3.333 3.382 25 V 1mA ≤ IL ≤ 300mA VOUT= 5.0V, VIN= 0V 5.0 5.0 16 4.950 4.880 5.050 5.120 25 µA (Note1) 6V ≤ VIN ≤ 20V (Note 4) IL=1 to 300mA IL=1mA IL=300mA IL=1mA IL=10mA IL=50mA IL=100mA IL=300mA VOUT=0 VIN -VOUT=1V(Avg), VRIPPLE=0.5Vp-p, FRIPPLE=120Hz, ILOAD=150mA VIN= -20V, VOUT=0V 20 100 ppm/°C 20 20 30 0.17 0.25 0.55 0.70 150 500 3 6 14 500 mV mV 1.0 mA 1.5 4 0.13 0.30 100 350 1.5 2 5 330 58 50 µA V V µA mA mA dB 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 = 1mA 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 SPX1521 is tested at 25°C for IL = 1 mA. For TJ = 125°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 1V differential. May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation APPLICATION INFORMATION External Capacitors The stability of the SPX1521 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. If there is more than 10 inches of wire between the input and the AC filter capacitor, or if a battery is used as the input, then a 0.1µF 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 1µF to 220µF only decreases the noise from 430µV to 160µVrms for a 100kHz bandwidth at 5V output. The SPX1521, 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. PINOUTS Note: Tab is connected to GND SOT-223 (M3) TO-263-3 (T) SPX1521 SPX1521 1 2 3 TO-220-3 (U) 1 2 SPX1521 3 1 VIN GND VOUT Top View 2 TO-252 (R) 3 VIN 2 GND 1 VOUT 3 Front View VOUT GND VIN Top View VOUT GND VIN Thermal Resistance (Theta JA) Front View SOT-223 ------62.3ºC/W TO-262 ------31.4ºC/W TO-220 ------29.4ºC/W TO-252 ------50.0ºC/W May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation PACKAGE: 3 Pin to-263 May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation PACKAGE: 3 Pin to-220 May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation PACKAGE: 3 Pin to-252 May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation PACKAGE: 3 Pin SOT223 May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation ORDERING INFORMATION Package RoHS Status Code Part Number Pack Type Pack Qty SPX1521M3-L-3-3 SOT-223-3 ▪ Active Tube 78 SPX1521M3-L-5-0 SOT-223-3 ▪ Active Tube 78 SPX1521M3-L-5-0/TR SOT-223-3 ▪ Active Tape & Reel 2500 EOL Tube 77 EOL Tube 50 Tape & Reel 2500 TO-252 SPX1521R-3-3 TO-263-3 SPX1521T-L-5-0 ▪ SPX1521R-3-3/TR TO-252 OBS SPX1521R-5-0 TO-252 OBS Tube 77 SPX1521R-5-0/TR TO-252 OBS Tape & Reel 2500 SPX1521R-L-3-3 TO-252 ▪ OBS Tube 77 SPX1521R-L-3-3/TR TO-252 ▪ OBS Tape & Reel 2500 SPX1521R-L-5-0 TO-252 ▪ OBS Tube 77 SPX1521R-L-5-0/TR TO-252 ▪ OBS Tape & Reel 2500 SPX1521T-3-3 TO-263-3 OBS Tube 50 SPX1521T-3-3/TR TO-263-3 OBS Tape & Reel 500 SPX1521T-5-0 TO-263-3 OBS Tube 50 SPX1521T-5-0/TR TO-263-3 OBS Tape & Reel 500 SPX1521T-L-3-3 TO-263-3 ▪ OBS Tube 50 SPX1521T-L-3-3/TR TO-263-3 ▪ OBS Tape & Reel 500 SPX1521T-L-5-0/TR TO-263-3 ▪ OBS Tape & Reel 500 SPX1521U-3-3 TO-220-3 OBS Tube 50 SPX1521U-5-0 TO-220-3 OBS Tube 50 SPX1521U-L-3-3 TO-220-3 ▪ OBS Tube 50 SPX1521U-L-5-0 TO-220-3 ▪ OBS Tube 50 Sipex Corporation Solved by TM Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 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. May15-07 SPX1521 300mA Low Dropout Voltage Regulator  © 2007 Sipex Corporation