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| AIC1721/1721D 3-pin Low Dropout Linear Regulator FEATURES Low Dropout Voltage of 130mV at 100mA Output Current (5V Output Version). Guaranteed 150mA/300mA Output Current. Internal 1.3 P-MOSFET Draws no Base Current. Low Ground Current at 55A. 1% Accuracy Output Voltage of 3.3V/5V. Input Voltage Range up to 12V (5V Output Version). Extremely Tight Load and Line Regulation. Fast Transient Response. Needs only 1F for Stability. Current and Thermal Limiting. DESCRIPTION The AIC1721/1721D is the enhanced CMOS version of the LP2950. The superior characteristics of the AIC1721/1721D include zero base current loss, very low dropout voltage, and 1% accuracy output voltage. Typica-l ground current remains approximately 55A, from no load to maximum loading conditions. Dropout voltage at 100mA output current is significantly lower than its bipolar counterpart: 130mV for the AIC1721-5/1721D-5, and 180mV for the AIC1721/ 1721D. Output current limiting and thermal limiting are built in to provide maximal protection to the AIC1721/ 1721D against fault conditions. While pin-to-pin compatible with the LP2950 and the industry industry standard 78XX series of voltage regulators, the AIC1721/1721D comes in the popular3-pin SOT-89 or TO-92 packages. APPLICATIONS Voltage Regulator for LAN Cards. Wireless Communication Systems. Battery Powered Systems. TYPICAL APPLICATION CIRCUIT VIN VIN AIC1721/ AIC1721D VOUT VOUT GND + 1F CIN + 10F COUT Negative Voltage Regulator Analog Integrations Corporation DS-1721-01 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 AIC1721 ORDERING INFORMATION AIC1721X-XXX PACKAGING TYPE X: SOT-89 Z: TO-92 TEMPERATURE RANGE C: 0C~+70C OUTPUT VOLTAGE DEFAULT: 3.3V 5: 5.0V ORDER NUMBER AIC1721CX AIC1721-5CX AIC1721DCX AIC1721D-5CX (SOT-89) PIN CONFIGURATION FRONT VIEW 1: VOUT 2: GND 3: VIN 1 2 3 OUTPUT CURRENT DEFAULT: 150mA D: 300mA AIC1721CZ AIC1721-5CZ AIC1721DCZ AIC1721D-5CZ (TO-92) TOP VIEW 1: VOUT 2: GND 3: VIN 1 2 3 ABSOLUTE MAXIMUM RATINGS Input Supply Voltage ......................................................................................... -0.3~12V Operating Junction Temperature Range ................................................... -40C~ 125C Storage Temperature Range Power Dissipation ................................................................... -65C~150C SOT-89 Package ........................... 0. 80W TO-92 Package ............................. 0.78W TEST CIRCUIT Refer to the TYPICAL APPLICATION CIRCUIT 2 AIC1721 ELECTRICAL CHARACTERISTICS otherwise specified.) PARAMETER Output Voltage (Ta=25C, CIN=1F, COUT=10F, unless TEST CONDITIONS No Load AIC1721/1721D-5 AIC1721/1721D (Note 1) MIN. 4.950 3.267 TYP. 5.0 3.3 50 MAX. 5.050 3.333 150 UNIT V VIN=5.5~12V VIN=3.6~12V Output Voltage Temperature Coefficiency Line Regulation PPM/C Load Regulation (Note 2) Current Limit (Note 3) Dropout Voltage (Note 4) Ground Current IL=1mA AIC1721/1721D-5 AIC1721/1721D AIC1721-5 AIC1721D-5 AIC1721 AIC1721D AIC1721-5 AIC1721 AIC1721D-5 AIC1721D AIC1721/1721D AIC1721-5 AIC1721 AIC1721D-5 AIC1721D IO=0.1mA~IMAX AIC1721/1721D-5 AIC1721/1721D mV VIN=5.5~12V VIN=3.6~12V VIN=7V, IL=0.1~150mA VIN=7V, IL=0.1~300mA VIN=5V, IL=0.1~150mA VIN=5V, IL=0.1~300mA VIN=7V, VOUT=0V VIN=5V, VOUT=0V VIN=7V, VOUT=0V VIN=5V, VOUT=0V IL=0.1mA IL=150mA IL=150mA IL=300mA IL=300mA VIN=5.5~12V VIN=4~12V 3 3 7 7 7 7 440 440 440 440 0.2 200 270 400 540 55 55 10 10 15 25 15 25 mV 320 320 320 320 mA 10 300 370 500 640 80 80 mV 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 AIC1721 BLOCK DIAGRAM GND + VREF - + - VIN VOUT TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs. Temperature 102 Normalized Output Voltage (%) 60 Ground Current vs. Input Voltage 50 Ground Current (A) 101 40 100 30 20 99 10 98 -40 0 0 50 Temperature (C) 100 125 0 0 2 4 6 8 10 12 Input Voltage (V) Ground Current vs. Temperature 60 600 Dropout Voltage vs Load Current 58 500 Ground Current (A) Dropout Voltage (mV) VOUT=3.3V 400 IL=300mA 56 IL=150mA 54 300 200 VOUT=5V 52 IL=0.1mA 100 50 0 -50 -25 0 25 50 75 100 125 0 50 100 150 200 250 300 Temperature(C) Load Current (mA) 4 AIC1721 TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage vs Temperature 600 (Continued) Short Circuit Current vs. Temperature 500 500 Short Circuit Current (mA) VOUT=5V IL=300mA AIC1721D 400 Dropout Voltage(mV) 400 300 IL=150mA 200 300 100 AIC1721 200 -50 IL=0.1mA 0 -50 -25 0 25 50 75 100 125 -25 0 Temperature(C) Temperature (C) 25 50 75 100 125 Line Transient Response 50 0 -50 Output Voltage (mV) 100 Load Transient Response 100 Output Voltage (mV, AC) 0 -100 -200 COUT=1F IL=1mA VOUT=5V COUT=1F VOUT=5V 8 6 Load Current (mA) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Input Voltage (V) 150 0.1 Time (mS) Load Transient Response Output Voltage (mV, AC) 20 0 -20 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Time (mS) COUT=10F VOUT=5V -40 -60 Load Current (mA) 150 0.1 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Time (mS) 5 AIC1721 PHYSICAL DIMENSIONS 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 SOT89 Marking Part No. AIC1714-30 AIC1714-33 AIC1714-50 Marking AP30 AP33 AP50 TO-92 (unit: mm) E C A L SYMBOL A C MIN 4.32 MAX 5.33 0.38 (TYP.) e1 D D E e1 L 4.40 3.17 1.27 (TYP.) 12.7 5.20 4.20 - 6 |
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