AIC1735 500mA Low Dropout Linear Regulator n FEATURES n DESCRIPTION Low Dropout Voltage of 650mV at 500mA The AIC1735 is a 3-pin low dropout linear Output Current (3V Output Version). regulator. The superior characteristics of the l Guaranteed 500mA Output Current. AIC1735 include zero base current loss, very l Low Ground Current at 65µA. low dropout voltage, and 2% accuracy output l 2% Accuracy Output Voltage of 1.8V/ 2.0V voltage. /2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/ 5.0V/ approximately 5.2V. maximum loading conditions. Dropout voltage l Needs only 4.7µF for Stability. at 100mA output current is exceptionally low. l Current and Thermal Limiting. Output current limiting and thermal limiting are l Typical ground 65 µ A, current from no remains load to built in to provide maximal protection to the n APPLICATIONS AIC1735 against fault conditions. l Voltage Regulator for CD-ROM Drivers. The AIC1735 comes with the popular SOT- l Voltage Regulator for LAN Cards. 223 and TO-252 packages. l Voltage Regulator for Microprocessor. l Voltage Regulator for RAM Module. l Wireless Communication Systems. l Battery Powered Systems. n TYPICAL APPLICATION CIRCUIT VOUT VIN AIC1735 V IN + 1µF CIN GND V OUT + 4.7µF COUT Low Dropout Linear Regulator Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw DS-1735-01 040902 1 AIC1735 n ORDERING INFORMATION AIC1735-XXCX XX PIN CONFIGURATION PACKING TYPE TR: TAPE & REEL TB: TUBE TO-252 (CE) TOP VIEW 1: VOUT 2. GND 3. VIN PACKAGE TYPE E: TO-252 Y: SOT-223 SOT-223 (CY) TOP VIEW 1: VOUT 2. GND 3. VIN OUTPUT VOLTAGE 18: 1.8V 20: 2.0V 25: 2.5V 27: 2.7V 30: 3.0V 33: 3.3V 35: 3.5V 37: 3.7V 38: 3.8V 50: 5.0V 52: 5.2V 1 1 2 2 3 3 Example: AIC1735-18CETR à 1.8V Version, in TO-252 Package & Tape & Reel Packing Type n ABSOLUTE MAXIMUM RATINGS Input Supply Voltage...................................................… … … … ..… … .................. -0.3~12V Operating Junction Temperature Range .....… … … ........… … … … ................ -40°C~ 85°C Storage Temperature Range ....................… … ......................… … … ............. -65°C~150°C Thermal Resistance θ JC TO-252 Package ...… .… … … ..… 12.5°C/W SOT-223 Package .....… … … ........ 15°C/W n TEST CIRCUIT Refer to the TYPICAL APPLICATION CIRCUIT 2 AIC1735 n ELECTRICAL CHARACTERISTICS (T A=25°C, CIN=1µF, COUT=4.7µF, unless otherwise specified.) PARAMETER TEST CONDITIONS Output Voltage No Load AIC1735-52 AIC1735-50 AIC1735-38 AIC1735-37 AIC1735-35 AIC1735-33 AIC1735-30 AIC1735-27 AIC1735-25 AIC1735-20 AIC1735-18 Output Voltage Temperature Coefficiency (Note 1) Line Regulation Load Regulation (Note 2) Current Limit (Note 3) TYP. MAX. UNIT 5.100 4.900 3.725 3.625 3.430 3.235 2.940 2.646 2.450 1.960 1.764 5.200 5.000 3.800 3.700 3.500 3.300 3.000 2.700 2.500 2.000 1.800 5.300 5.100 3.875 3.775 3.570 3.365 3.060 2.754 2.550 2.040 1.836 V 50 PPM/°C IL=1mA, 1.4V≤VOUT≤3.2V 3.3V≤VOUT≤5.2V VIN=4V~12V VIN=5.5V~12V 3 3 10 10 mV IL=0.1~500mA 1.4V≤VOUT≤3.9V 4.0V≤VOUT≤5.2V VIN=5V VIN=7V 10 20 30 50 mV VIN =7V, VOUT=0V Dropout Voltage (Note 4) IL=500mA Ground Current IO=0.1mA~IMAX 1.4V≤VOUT≤3.9V 4.0V≤VOUT≤5.2V Note 1: Note 2: Note 3: Note 4: VIN=5.5~12V VIN=5.5~12V VIN=4.7~12V VIN=4.7~12V VIN=4.7~12V VIN=4.7~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V MIN. 500 4.0V≤VOUT≤5.2V 3.0V≤VOUT≤3.9V 2.5V≤VOUT≤2.9V 2.0V≤VOUT≤2.4V 1.4V≤VOUT≤1.9V VIN=5~12V VIN=7~12V mA 510 650 780 1100 1400 65 65 mV 90 90 µA 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 AIC1735 n TYPICAL PERFORMANCE CHARACTERISTICS 500 600 AIC1735-33 AIC1735-52 500 T=25°C VDROP (mV) VDROP (mV) 400 300 200 T=25 °C 400 300 200 100 100 0 0 50 100 150 200 250 300 350 400 450 500 0 0 I LOAD (mA) 50 100 150 250 300 350 400 450 500 ILOAD (mA) VDROP vs. ILOAD VDROP vs. ILOAD 480 640 460 AIC1735-52 620 AIC1735-33 440 ILOAD =500mA 600 ILOAD =500mA VDROP (mV) VDROP (mV) 200 420 400 380 580 560 540 520 360 500 340 480 320 -40 -30 -20 -10 0 10 20 30 40 50 60 70 460 -40 80 -20 Temperature (°C) VDROP vs. Temperature AIC1735-52 Ground Current (µA) 45.5 Ground Current (µA) 20 40 60 80 46.0 46.0 T=25°C 45.0 44.5 44.0 45.5 AIC1735-33 T=25°C 45.0 44.5 44.0 43.5 43.5 43.0 0 0 Temperature (°C) VDROP vs. Temperature 50 100 150 200 250 300 350 ILOAD (mA) Ground Current vs. ILOAD 400 450 500 43.0 0 50 100 150 200 250 300 350 400 450 500 ILOAD (mA) Ground Current vs. ILOAD 4 AIC1735 n TYPICAL PERFORMANCE CHARACTERISTICS (Continued) 46 46.0 AIC1735-33 Ground Current (µA) Ground Current (µA) AIC1735-52 45 ILOAD = 500mA 44 43 42 41 40 -40 45.5 ILOAD = 500mA 45.0 44.5 44.0 43.5 -20 0 20 40 60 80 Temperature (°C) 43.0 -40 -20 0 20 40 60 80 Temperature (°C) Ground Current vs. Temperature Ground Current vs. Temperature 700 690 AIC1735 VIN = 7V Current Limit (mA) 680 670 660 VIN = 6V 650 640 VIN = 5V 630 620 610 600 590 580 -40 -20 0 20 40 60 80 Temperature (°C) Current Limit vs. Temperature 5 AIC1735 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. 6 AIC1735 n PHYSICAL DIMENSIONS l TO-252 (unit: mm) E C1 b2 A D H L l MIN MAX A 2.19 2.38 A1 1.02 1.27 b 0.64 0.88 b2 5.21 5.46 C1 0.46 0.58 D 5.33 5.59 E 6.35 6.73 e e b SYMBOL A1 2.28 (TYP.) H 9.40 10.42 L 0.51 - SYMBOL MIN MAX A1 0.02 0.12 B 0.60 0.80 B1 2.90 3.15 C 0.24 0.35 D 6.30 6.80 E 3.30 3.70 SOT-223 (unit: mm) 1.80 MAX D B1 13 ° ± 3 E ° H e A1 B 13 ° ± 3 ° 3 (PLCS) e H C 2.30 (TYP.) 6.70 7.30 0° ~ 10 ° 0.91 MIN 13 ° ± 3 ° l SOT-223 MARKING Part No. Marking Part No. Marking AIC1735-18CY CC18 AIC1735-35CY CC35 AIC1735-20CY CC20 AIC1735-37CY CC37 AIC1735-25CY CC25 AIC1735-38CY CC38 AIC1735-27CY CC27 AIC1735-50CY CC50 AIC1735-30CY CC30 AIC1735-52CY CC52 AIC1735-33CY CC33 7