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| SS6732 300mA Low Dropout Linear Regulator n FEATURES l l l n DESCRIPTION Thve SS6732 is a 3-pin low-dropout linear regulator. The superior characteristics of the SS6732 include zero base current loss, very low dropout voltage, and 2% accurate output voltage. Typical ground current remains approximately 55A, under output l l l l l Low dropout voltage of 130mV at 100mA output current (5.2V output version). Guaranteed 300mA output current. Internal 1.3 P-MOSFET draws no base current. Low ground current: 55uA. Accuracy of output voltage 2% of 3.3V/ 3.4V/ 3.5V/ 3.6V/ 3.7V/ 3.8V/ 5.0V/ 5.2V. Input voltage range up to 12V. Needs only 1F for stability. Current limiting and thermal Protection. conditions from zero up to the maximum load. Dropout voltage at 100mA output current is exceptionally low: 130mV for the SS673250 and -52, 180mV for the SS6732-33, -34, SS6732-35, -36, -37 and -38. Current limiting and thermal protection are built in to protect the SS6732 against fault conditions. The SS6732 comes in the popular 3-pin SOT-89 package. n APPLICATIONS l l l l l Voltage Regulator for CD-ROM Drivers. Voltage Regulator for LAN Cards. Voltage Regulator for Microprocessor. Wireless Communication Systems. Battery Powered Systems. n TYPICAL APPLICATION CIRCUIT VIN VIN SS6732 VOUT VOUT + 1F CIN GND + 10F COUT Low Dropout Linear Regulator Rev.2.01 6/26/2003 www.SiliconStandard.com 1 of 7 SS6732 n ORDERING INFORMATION SS6732-XXCXXX PACKING TYPE TR: TAPE & REEL BG: BAG PACKAGE TYPE X: SOT-89 OUTPUT VOLTAGE 33: 3.3V 34: 3.4V 35: 3.5V 36: 3.6V 37: 3.7V 38: 3.8V 50: 5.0V 52: 5.2V Example: SS6732-33CXTR a 3.3V Version, in SOT-89 Package in Tape & Reel Packing PIN CONFIGURATION SOT-89 FRONT VIEW 1. GND 2. VIN 3. VOUT 1 2 3 n ABSOLUTE MAXIMUM RATINGS Input Supply Voltage...................................................... ... ... ... ..... ... .................... -0.3~12V Operating Junction Temperature Range ........ ... ... ........... ... ... ... ................ -40C~ 125C Storage Temperature Range ....................... ... ......................... ... ... .............. -65C~150C Power Dissipation SOT-89 Package ....... ...... ................. 0.5W n TEST CIRCUIT Refer to the TYPICAL APPLICATION CIRCUIT Rev.2.01 6/26/2003 www.SiliconStandard.com 2 of 7 SS6732 n otherwise specified.) PARAMETER Output Voltage ELECTRICAL CHARACTERISTICS (TJ=25C, CIN=1F, COUT=10F, unless TEST CONDITIONS SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 (Note 1) IOUT=1mA SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 VIN=5.5~12V, IOUT=0mA VIN=5.5~12V, IOUT=0mA VIN=4.1~12V, IO U T=0mA VIN=4.0~12V, IOUT=0mA VIN=4.0~12V, IOUT=0mA VIN=4.0~12V, IOUT=0mA V IN=4.0~12V, IOUT=0mA VIN=3.6~12V, IOUT=0mA MIN. 5.100 4.900 3.725 3.625 3.528 3.430 3.332 3.235 TYP. 5.2 5.0 3.8 3.7 3.6 3.5 3.4 3.3 50 MAX. 5.300 5.100 3.875 3.775 3.672 3.570 3.468 3.365 150 UNIT V Output Voltage Temp. Coefficiency Line Regulation PPM/C VIN=5.5~12V VIN=5.5~12V VIN=4.1~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=3.6~12V VIN=7V, IOUT=0.1~300mA VIN=7V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=5V, IOUT=0.1~300mA VIN=7V, VIN=7V, VIN=7V, VIN=5V, VIN=5V, VIN=5V, VIN=5V, VIN=5V, VOUT=0V VOUT=0V VOUT=0V VOUT=0V VOUT=0V VOUT=0V VOUT=0V VOUT=0V 300 300 300 300 300 300 300 300 5 5 5 5 5 5 5 5 15 15 15 15 15 15 15 15 440 440 440 440 440 440 440 440 15 15 15 15 15 15 15 15 40 40 40 40 40 40 40 40 mV Load Regulation (Note 2) mV Current Limit (Note 3) mA Rev.2.01 6/26/2003 www.SiliconStandard.com 3 of 7 SS6732 n ELECTRICAL CHARACTERISTICS (Continued) PARAMETER Dropout Voltage (Note 4) TEST CONDITIONS SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 IOUT=0.1mA~IMAX SS6732-52 SS6732-50 SS6732-38 SS6732-37 SS6732-36 SS6732-35 SS6732-34 SS6732-33 IOUT=300mA IOUT=300mA IOUT=300mA IOUT=300mA IOUT=300mA IOUT=300mA IOUT=300mA IOUT=300mA VIN=5.5~12V VIN=5.5~12V VIN=4~12V VIN=4~12V VIN=4~12V VIN=4~12V VIN=4~12V VIN=4~12V MIN. TYP. 400 400 540 540 540 540 540 540 55 55 55 55 55 55 55 55 MAX. 500 500 640 640 640 640 640 640 80 80 80 80 80 80 80 80 UNIT mV Ground Current A Note 1: Note 2: Note 3: Note 4: Guaranteed by design. Regulation is measured at constant junction temperature, using pulse testing with a low ON time. Current limit is measured by pulsing a short time. Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below the value measured with a 1V differential. n TYPICAL PERFORMANCE CHARACTERISTICS 104 60 Normalized Output Voltage (%) 50 Ground Current (A) -40 0 0 50 100 125 103 40 100 30 20 98 10 96 0 0 2 4 6 8 10 12 Temperature ( C) Output Voltage vs. Temperature Fig. 2 Input Voltage (V) Ground Current vs. Input Voltage Fig. 1 Rev.2.01 6/26/2003 www.SiliconStandard.com 4 of 7 SS6732 n TYPICAL PERFORMANCE CHARACTERISTICS (Continued) 60 600 58 500 V OUT =3.3V, 3.5V, 3.7V & 3.8V Ground Current (A) Dropout Voltage (mV) 400 56 IL =300mA IL =150mA 300 54 200 IL=0.1mA 52 V OUT =5.0V & 5.2V 100 50 -50 -25 0 25 50 0 75 100 125 Temperature ( C) Fig. 3 Ground Current vs. Temperature 0 50 100 150 200 250 300 Fig. 4 Load Current (mA) Dropout Voltage vs. Load Current 100 Output Voltage (mV, AC) 50 0 Output Voltage (mV, AC) 20 0 -50 COUT=1F IL=1mA VOUT=5.2V -20 -40 Input Voltage (V) 8 6 Load Current (mA) -60 150 0.1 COUT=1F VOUT=5.2V 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Time (mS) Fig. 5 Line Transient Response 400 Time (mS) Fig. 6 Load transient Response Current Voltage (mV, AC) 0 Output Current, IOUT (mA) 100 COUT=1F VOUT =5.2V 3.3V 3.5V 3.7V 3.8V 300 -100 -200 200 5.2V 5V Load Current (mA) 150 0.1 100 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 4 5 6 7 8 9 10 11 12 Fig. 7 Time (mS) Load Transient Response Input Voltage VIN (V) Fig. 8 Recommended Max. Output Current vs. Input Voltage Rev.2.01 6/26/2003 www.SiliconStandard.com 5 of 7 SS6732 n BLOCK DIAGRAM VIN VOUT CURRENT LIMITING ERROR AMP THERMAL LIMITING + - + VREF 1.235V GND n PIN DESCRIPTIONS VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input. n APPLICATION INFORMATIONS A capacitor of at least 1uF is required between the device output pin and ground for stability. Without this capacitor the part will oscillate. Even though most types of capacitor may work, the equivalent series resistance (ESR) should be held to 5 or less if an Aluminum electrolytic type is used. Many Aluminum electrolytics have electrolytes that freeze at about -30C, so solid tantalums are recommended for operation below -25C. The A capacitor of at least 0.1uF should be placed from the SS6732 input to ground if the lead inductance between the input and power source exceeds 500nH (approximately 10 inches of trace). value of this capacitor may be increased without limit. Rev.2.01 6/26/2003 www.SiliconStandard.com 6 of 7 SS6732 n PHYSICAL DIMENSIONS l SOT-89 (unit: mm) D D1 C A SYMBOL A B C D MIN 1.40 0.36 0.35 4.40 1.62 2.29 MAX 1.60 0.48 0.44 4.60 1.83 2.60 1.50 (TYP.) 3.00 (TYP.) H E D1 E e L e e1 B e1 H L 3.94 0.89 4.25 1.20 l SOT-89 MARKING Part No. SS6732-33 SS6732-34 SS6732-35 SS6732-36 SS6732-37 SS6732-38 SS6732-50 SS6732-52 Marking AR33 AR34 AR35 AR36 AR37 AR38 AR50 AR52 Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no guarantee or warranty, express or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of Silicon Standard Corporation or any third parties. Rev.2.01 6/26/2003 www.SiliconStandard.com 7 of 7 |
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