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| AIC1732 300mA Low Dropout Linear Regulator n FEATURES l l l n DESCRIPTION The AIC1732 is a 3-pin low dropout linear regulator. The superior characteristics of the AIC1732 include zero base current loss, very low dropout voltage, and 2% accuracy output voltage. Typical ground current no remains load to approximately 55A, from 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 at 55A. 2% Accuracy Output Voltage 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 and Thermal Limiting. maximum loading conditions. Dropout voltage at 100mA output current is exceptionally low: 130mV for the AIC1732-50 and AIC1732-52, 180mV for the AIC1732-33, AIC1732-34, AIC1732-35, AIC1732-36, AIC1732-37 and AIC1732-38. protection conditions. The AIC1732 comes in the popular 3-pin SOT-89 packages. to Output the current AIC1732 limiting against and fault thermal limiting are built in to provide maximal 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 V IN VOUT AIC1732 VOUT + 1 F C IN GND + 10 F COUT Low Dropout Linear Regulator Analog Integrations Corporation DS-1732-01 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 AIC1732 n ORDERING INFORMATION AIC1732-XXXXX PACKAGING TYPE X: SOT-89 TEMPERATURE RANGE C: 0C~70C 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 ORDER NUMBER AIC1732-33CX AIC1732-34CX AIC1732-35CX AIC1732-36CX AIC1732-37CX AIC1732-38CX AIC1732-50CX AIC1732-52CX SOT-89 PIN CONFIGURATION 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 n ELECTRICAL CHARACTERISTICS (Ta=25C, CIN=1F, C OUT=10F, unless otherwise specified.) PARAMETER Output Voltage TEST CONDITIONS No Load AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 (Note 1) VIN=5.5~12V VIN=5.5~12V VIN=4.1~12V VIN=4.0~12V VIN=4.0~12V VIN=3.6~12V MIN. 5.100 4.900 3.725 3.625 3.430 3.235 TYP. 5.2 5.0 3.8 3.7 3.5 3.3 50 MAX. 5.300 5.100 3.875 3.775 3.570 3.365 150 UNIT V Output Voltage Temperature Coefficiency PPM/C 2 AIC1732 n ELECTRICAL CHARACTERISTICS (Continued) PARAMETER Line Regulation TEST CONDITIONS IL=1mA AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 AIC1732s AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 IO=0.1mA~IMAX AIC1732-52 AIC1732-50 AIC1732-38 AIC1732-37 AIC1732-35 AIC1732-33 VIN=5.5~12V VIN=5.5~12V VIN=4.1~12V VIN=4.0~12V VIN=4.0~12V VIN=3.6~12V VIN=7V, IL=0.1~300mA VIN=7V, IL=0.1~300mA VIN=5V, IL=0.1~300mA VIN=5V, IL=0.1~300mA VIN=5V, IL=0.1~300mA VIN=5V, IL=0.1~300mA VIN=7V, VOUT=0V VIN=7V, VOUT=0V VIN=7V, VOUT=0V VIN=5V, VOUT=0V VIN=5V, VOUT=0V VIN=5V, VOUT=0V IL=0.1mA IL=300mA IL=300mA IL=300mA IL=300mA IL=300mA IL=300mA VIN=5.5~12V VIN=5.5~12V VIN=4~12V VIN=4~12V VIN=4~12V VIN=4~12V MIN. TYP. 5 5 5 5 5 5 15 15 15 15 15 15 440 440 440 440 440 440 0.2 400 400 540 540 540 540 55 55 55 55 55 55 MAX. 15 15 15 15 15 15 40 40 40 40 40 40 UNIT mV Load Regulation (Note 2) mV Current Limit (Note 3) 300 300 300 300 300 300 mA Dropout Voltage (Note 4) 10 500 500 640 640 640 640 80 80 80 80 80 80 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. 3 AIC1732 n TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs. Temperature 104 60 Ground Current vs. Input Voltage Normalized Output Voltage (V) 50 103 Ground Current ( A) 0 0 50 100 125 40 100 30 20 98 10 96 -40 Temperature (C) 00 2 4 6 8 10 12 Input Voltage (V) Ground Current vs. Temperature 60 Dropout Voltage vs. Load Current 6 00 Dropout Voltage (mV) 58 5 00 VOUT =3.3V, 3.5V, 3.7V & 3.8V Ground Current (A) 4 00 56 IL =300mA IL=150mA 3 00 54 2 00 VOUT =5.0V & 5.2V 1 00 52 IL =0.1mA 50 -50 0 -25 0 25 50 75 100 125 0 50 100 15 0 200 250 30 0 Temperature (C) Load Current (mA) Load transient Response Line Transient Response Output Voltage (mV, AC) 50 0 Output Voltage (mV, AC) Load Current (mA) 100 20 0 -50 COUT =1F IL =1mA VOUT=5.2V -20 -40 -60 Input Voltage (V) 8 6 150 0.1 2.0 Time 2.5 3.0 (mS) 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 3.5 4.0 4.5 5.0 Time (mS) 4 AIC1732 n TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Load Transient Response 400 Recommended Max. Output Current v.s. Input Voltage 3.3V 3.5V 3.7V 3.8V Out put Volt age (mV , A C) 100 0 Output Current, IOUT (mA) COUT= 1 F V OUT= 5 .2 V 300 -100 -200 200 5.2V 5V Load Current (mA ) 150 100 0. 1 0 0 0.5 1. 0 1. 5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 4 5 6 7 8 9 10 11 12 Time (mS) Input Voltage VIN (V) n BLOCK DIAGRAM VIN VOUT CURRENT LIMITING ERROR AMP THERMAL SHUTDOWN - + 1.235V Reference - GND n PIN DESCRIPTION VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input. n APPLICATION INFORMATIONS A 1F (or greater) capacitor is required between the AIC1732 output 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 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 0.1F capacitor (or greater) should be placed from the AIC1732 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. 5 AIC1732 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. AIC1732-33 AIC1732-34 AIC1732-35 AIC1732-36 AIC1732-37 AIC1732-38 AIC1732-50 AIC1732-52 Marking AR33 AR34 AR35 AR36 AR37 AR38 AR50 AR52 6 |
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