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 1.3Ω P-MOSFET Draws no Base Current. Low Ground Current at 55µA. 1% Accuracy Output Voltage of 3.3V/5V. Input Voltage Range up to 12V (5V Output Fast Transient Response. Needs only 1µF for Stability. Current and Thermal Limiting. 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 Version). Extremely Tight Load and Line Regulation. The AIC1721/1721D is the enhanced CMOS version DESCRIPTION current remains approximately 55µA, 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 APPLICATIONS conditions. Voltage Regulator for LAN Cards. Wireless Communication Systems. Battery Powered Systems. 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. TYPICAL APPLICATION CIRCUIT VIN VIN AIC1721/ AIC1721D VOUT VOUT GND + 1µF CIN + 10µF COUT Negative Voltage Regulator Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC DS-1721-01 TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 AIC1721 ORDERING INFORMATION AIC1721X-XXX ORDER NUMBER PACKAGING TYPE X: SOT-89 Z: TO-92 TEMPERATURE RANGE C: 0°C~+70°C AIC1721CX AIC1721-5CX AIC1721DCX AIC1721D-5CX (SOT-89) PIN CONFIGURATION FRONT VIEW 1: VOUT 2: GND 3: VIN 1 OUTPUT VOLTAGE DEFAULT: 3.3V 5: 5.0V AIC1721CZ AIC1721-5CZ AIC1721DCZ AIC1721D-5CZ (TO-92) OUTPUT CURRENT DEFAULT: 150mA D: 300mA TOP VIEW 1: VOUT 2: GND 3: VIN 2 3 1 2 3 ABSOLUTE MAXIMUM RATINGS Input Supply Voltage .................................…………......……................................ -0.3~12V Operating Junction Temperature Range ..............….....……..….….............. -40°C~ 125°C Storage Temperature Range Power Dissipation ..............................….………........................ -65°C~150°C 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 Output Voltage Temperature Coefficiency Line Regulation Load Regulation (Note 2) Current Limit (Note 3) Dropout Voltage (Note 4) Ground Current Note 1: Note 2: Note 3: Note 4: (Ta=25°°C, CIN=1µ µF, COUT=10µ µF, unless TEST CONDITIONS No Load AIC1721/1721D-5 AIC1721/1721D MIN. TYP. MAX. 4.950 3.267 5.0 3.3 50 5.050 3.333 150 3 3 7 7 7 7 440 440 440 440 0.2 200 270 400 540 10 10 15 25 15 25 V VIN=5.5~12V VIN=3.6~12V (Note 1) 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 UNIT PPM/°C 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 320 320 320 320 mV mA 10 300 370 500 640 mV µA VIN=5.5~12V VIN=4~12V 55 55 80 80 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 + - - VOUT VIN TYPICAL PERFORMANCE CHARACTERISTICS Ground Current vs. Input Voltage Output Voltage vs. Temperature 60 Normalized Output Voltage (%) 102 50 Ground Current (µA) 101 100 99 40 30 20 10 98 -40 0 0 100 50 Temperature (°C) 0 125 0 2 6 10 8 12 Dropout Voltage vs Load Current Ground Current vs. Temperature 600 500 Dropout Voltage (mV) 58 IL=300mA 56 IL=150mA 54 IL=0.1mA 52 50 4 Input Voltage (V) 60 Ground Current (µA) VOUT=3.3V 400 300 VOUT=5V 200 100 0 -50 -25 0 25 50 Temperature(°C) 75 100 125 0 50 100 150 200 250 300 Load Current (mA) 4 AIC1721 TYPICAL PERFORMANCE CHARACTERISTICS 500 600 VOUT=5V IL=300mA Short Circuit Current (mA) Dropout Voltage(mV) 500 400 IL=150mA 300 (Continued) Short Circuit Current vs. Temperature Dropout Voltage vs Temperature 200 100 AIC1721D 400 300 AIC1721 IL=0.1mA 0 -50 -25 0 25 50 75 100 200 -50 125 -25 0 Temperature(°C) Line Transient Response Output Voltage (mV) 0 COUT=1µF IL=1mA VOUT=5V Load Current (mA) Output Voltage (mV, AC) Input Voltage (V) 50 -50 8 6 0 0.1 0.2 0.3 0.4 0.5 0.6 25 50 Temperature (°C) 75 100 125 Load Transient Response 100 0.7 0.8 0.9 1.0 Time (mS) 100 0 -100 COUT=1µF -200 VOUT=5V 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) Output Voltage (mV, AC) Load Transient Response COUT=10µF VOUT=5V 20 0 -20 -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 A SYMBOL MIN MAX C A 1.40 1.60 B 0.36 0.48 C 0.35 0.44 D 4.40 4.60 D1 1.62 1.83 E 2.29 2.60 D1 H E L B e e1 e 1.50 (TYP.) e1 3.00 (TYP.) H 3.94 4.25 L 0.89 1.20 SYMBOL MIN MAX A 4.32 5.33 SOT89 Marking Part No. AIC1714-30 AIC1714-33 AIC1714-50 Marking AP30 AP33 AP50 TO-92 (unit: mm) A E L C C e1 D 0.38 (TYP.) D 4.40 5.20 E 3.17 4.20 e1 L 1.27 (TYP.) 12.7 - 6