AIC1734 300mA Low Dropout Linear Regulator FEATURES DESCRIPTION Low Dropout Voltage of 470mV at 300mA Output Current (3.0V Output Version). The AIC1734 is a 3-pin low dropout linear Guaranteed 300mA Output Current. AIC1734 include zero base current loss, very Low Ground Current at 55A. low dropout voltage, and 2% accuracy output 2% Accuracy Output Voltage of 1.8V/ 2.0V /2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/ 5.0V/ 5.2V. voltage. Typical ground current remains apzero to maximum. Dropout voltage at 300mA Only needs 1F Output Capacitor for Stability. output current is exceptionally low. Built-in Current and Thermal Limiting. output current limiting and thermal limiting regulator. The superior characteristics of the proximately 55 A, for loading ranging from provide maximal protection to the AIC1734 APPLICATIONS against fault conditions. CD-ROM Drivers. The AIC1734 is available in popular SOT-23, LAN Cards. SOT-89 and TO-92 packages. Microprocessor. RAM Module. Wireless Communication Systems. Battery Powered Systems. TYPICAL APPLICATION CIRCUIT VIN VIN + 1F CIN VOUT AIC1734 GND VOUT + 1F COUT Low Dropout Linear Regulator Analog Integrations Corporation Si-Soft Research Center DS-1734P-04 010405 3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C. TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 AIC1734 ORDERING INFORMATION AIC1734-XXXXX XX PIN CONFIGURATION PACKING TYPE TR: TAPE & REEL BG: BAG PACKAGE TYPE U: SOT-23 XA: SOT-89 XT: SOT-89 ZT: TO-92 ZL: TO-92 1 C: Commercial P: Lead Free Commercial SOT-89 (CXA & PXA) TOP VIEW 1: GND 2. VIN 3. VOUT SOT-89 (CXT & PXT) 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 Example: 3 SOT-23 (CU & PU) TOP VIEW 1: GND 2: VOUT 3: VIN TO-92 (CZT & PZT) TOP VIEW 1: GND 2. VIN 3. VOUT AIC1734-18CXATR 1.8V Version, in SOT-89 Package & Tape & Reel Packing Type AIC1734-18PXATR 1.8V Version, in SOT-89 Lead Free Package & Tape & Reel Packing Type TO-92 (CZL & PZL) TOP VIEW 1: VIN 2. GND 3. VOUT 2 1 2 3 1 2 3 1 2 3 1 2 3 SOT-23 MARKING Part No. CU PU Part No. CU PU AIC1734-18XU CD18 CD18P AIC1734-35XU CD35 CD35P AIC1734-20XU CD20 CD20P AIC1734-37XU CD37 CD37P AIC1734-25XU CD25 CD25P AIC1734-38XU CD38 CD38P AIC1734-27XU CD27 CD27P AIC1734-50XU CD50 CD50P AIC1734-30XU CD30 CD30P AIC1734-52XU CD52 CD52P AIC1734-33XU CD33 CD33P 2 AIC1734 SOT-89 MARKING Part No. CXA PXA Part No. CXT PXT AIC1734-18XXA CA18 CA18P AIC1734-18XXT CB18 CB18P AIC1734-20XXA CA20 CA20P AIC1734-20XXT CB20 CB20P AIC1734-25XXA CA25 CA25P AIC1734-25XXT CB25 CB25P AIC1734-27XXA CA27 CA27P AIC1734-27XXT CB27 CB27P AIC1734-30XXA CA30 CA30P AIC1734-30XXT CB30 CB30P AIC1734-33XXA CA33 CA33P AIC1734-33XXT CB33 CB33P AIC1734-35XXA CA35 CA35P AIC1734-35XXT CB35 CB35P AIC1734-37XXA CA37 CA37P AIC1734-37XXT CB37 CB37P AIC1734-38XXA CA38 CA38P AIC1734-38XXT CB38 CB38P AIC1734-50XXA CA50 CA50P AIC1734-50XXT CB50 CB50P AIC1734-52XXA CA52 CA52P AIC1734-52XXT CB52 CB52P ABSOLUTE MAXIMUM RATINGS Input Supply Voltage -0.3 ~12V Operating Temperature Range -40C~ 85C Storage Temperature Range Maximum Junction Temperature -65C~150C 125C Lead Temperature (Soldering) 10 sec. 260C Thermal Resistance Junction to Ambient SOT-89 Package 160C/W (Assume no Ambient Airflow, no Heatsink) TO-92 Package 150C/W SOT-23 Package 180C/W Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. TEST CIRCUIT Refer to the TYPICAL APPLICATION CIRCUIT 3 AIC1734 ELECTRICAL CHARACTERISTICS erwise specified.) PARAMETER TEST CONDITIONS Output Voltage No Load AIC1734-52 AIC1734-50 AIC1734-38 AIC1734-37 AIC1734-35 AIC1734-33 AIC1734-30 AIC1734-27 AIC1734-25 AIC1734-20 AIC1734-18 Output Voltage Temperature Coefficiency (Note 1) Line Regulation Load Regulation (Note 2) Current Limit (Note 3) Ground Current IO=0.1mA~IMAX 1.4VVOUT3.9V 4.0VVOUT5.2V MIN. 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 VIN=4V~12V VIN=5.5V~12V 3 3 10 10 mV VIN=5V VIN=7V 7 15 20 40 mV VIN=7V, VOUT=0V IL=300mA Note5: 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=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V IL=1mA, 1.4VVOUT3.2V 3.3VVOUT5.2V IL=0.1~300mA 1.4VVOUT3.9V 4.0VVOUT5.2V Dropout Voltage (Note 4) Note 1: Note 2: Note 3: Note 4: (TA=25C, CIN=1F, COUT=1F, unless oth- 300 4.0VVOUT5.2V 3.0VVOUT3.9V 2.5VVOUT2.9V 2.0VVOUT2.4V 1.4VVOUT1.9V VIN=5~12V VIN=7~12V mA 400 470 570 800 1260 55 55 mV 80 80 A 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. Specifications are guaranteed by Statistical Quality Controls (SQC), with no production test proved, when operating temperature ranges from -40C to 85C. 4 AIC1734 TYPICAL PERFORMANCE CHARACTERISTICS 5.40 3.50 AIC1734-52 5.30 3.40 5.25 3.35 5.20 5.15 3.30 3.25 5.10 3.20 5.05 3.15 5.00 -50 -30 AIC1734-33 3.45 V OUT (V) V OUT (V) 5.35 -10 10 30 50 70 3.10 -50 90 -30 -10 Fig. 1 Fig. 2 VOUT vs. Temperature Ground Current (A) Ground Current (A) ILOAD=300mA 46 44 42 ILOAD=100mA 90 VOUT vs. Temperature 44 42 ILOAD=100mA 40 0 ILOAD= 0mA 38 -40 -30 -20 -10 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 Temperature (C) Temperature (C) Fig. 3 Ground Current vs. Temperature Fig. 4 60 Ground Current vs. Temperature 60 AIC1734-33 AIC1734-52 50 Ground Current (A) Ground Current (A) 70 ILOAD=300mA 46 ILOAD= 0mA 38 -40 -30 -20 -10 40 30 20 10 0 50 AIC1734-33 AIC1734-52 40 30 48 50 48 10 Temperature (C) Temperature (C) 50 40 30 20 10 0 1 2 Fig. 5 3 4 5 6 VIN (V) 7 8 9 10 Ground Current vs. VIN 11 12 0 0 1 2 Fig. 6 3 4 5 6 VIN (V) 7 8 9 10 11 12 Ground Current vs. VIN 5 AIC1734 TYPICAL PERFORMANCE CHARACTERISTIC 600 500 450 AIC1734-52 AIC1734-33 T= 80C T= 80C 500 350 VDROP (mV) 400 VDROP (mV) (Continued) T= 50C 300 250 T= 20C 200 T=-40C 150 T= 50C 400 300 T= 20C 200 T=-40C 100 100 50 00 0 50 100 150 200 250 ILOAD (mA) Fig. 7 300 350 400 VDROP vs. ILOAD 0 50 100 Fig. 8 150 200 ILOAD (mA) 250 300 350 400 VDROP vs. ILOAD 500 490 AIC1734 Crrent Limit (mA) 480 VIN = 8V 470 VIN = 7V 460 450 440 430 VIN = 6V 420 410 400 -40 VIN = 5V -20 Fig. 9 0 20 40 Temperature (C) 60 80 Current Limit vs. Temperature 6 AIC1734 BLOCK DIAGRAM VIN VOUT CURRENT LIMITING ERROR AMP + - + THERMAL SHUTDOWN 1.235V Reference GND PIN DESCRIPTIONS VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input. 7 AIC1734 PHYSICAL DIMENSIONS (unit: mm) SOT-23 D S Y M B O L A A e1 SEE VIEW B WITH PLATING c A A2 b BASE METAL MILLIMETERS MAX. A 0.95 1.45 A1 0.05 0.15 A2 0.90 1.30 b 0.30 0.50 c 0.08 0.22 D 2.80 3.00 E 2.60 3.00 E1 1.50 0.95 BSC e1 1.90 BSC 0.30 L1 A1 1.70 e L SECTION A-A SOT-23 MIN. E E1 e 0 8 0.25 0.60 0.60 REF GAUGE PLANE SEATING PLANE L L1 VIEW B SOT-89 D A H E L e e1 S Y M B O L C D1 SOT-89 MILLIMETERS MIN. MAX. A 1.40 1.60 B 0.44 0.56 B1 0.36 0.48 C 0.35 0.44 D 4.40 4.60 D1 1.50 1.83 E 2.29 e e1 B1 2.60 1.50 BSC 3.00 BSC H 3.94 4.25 L 0.89 1.20 B 8 AIC1734 TO-92 S Y M B O L TO-92 MILLIMETERS MIN. MAX. A 4.32 5.33 b 0.36 0.47 D 4.45 5.20 E 3.18 4.19 e 2.42 2.66 e1 1.15 1.39 j 3.43 L 12.70 S 2.03 2.66 Note: Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may result from its use. We reserve the right to change the circuitry and specifications without notice. Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 9