AIC1723A 500mA Low Dropout Linear Regulator FEATURES DESCRIPTION Low Dropout Voltage of 650mV at 500mA The AIC1723A is a 3-pin low dropout linear regulator. The superior characteristics of the AIC1723A include zero base current loss, very low dropout voltage, and 2% accuracy output voltage. Typical ground current remains approximately 65 µ A, for loading ranging from zero to maximum. Dropout voltage turns substantially low when output current is 500mA. Built-in output current limiting and thermal limiting provide maximal protection to the AIC1723A against fault conditions. Output Current (3V Output Version). Guaranteed 500mA Output Current. Maximum Input Voltage is 8V Low Ground Current at 65µA. 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. Only needs 4.7µF Output Capacitor for Stability. Current and Thermal Limiting. APPLICATIONS The AIC1723A is available with popular SOT23, SOT-223, SOT-89 and TO-252 packages. CD-ROM Drivers. LAN Cards. Microprocessor. RAM Module. Wireless Communication Systems. Battery Powered Systems. TYPICAL APPLICATION CIRCUIT VIN VIN + 1µF CIN VOUT AIC1723A GND VOUT + 4.7µF COUT Low Dropout Linear Regulator (CIN and COUT are electrolytic capacitor) Analog Integrations Corporation Si-Soft Research Center DS-1723AP-02 082304 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 AIC1723A ORDERING INFORMATION AIC1723A-XXXX XX PACKING TYPE TR: TAPE & REEL TB: TUBE PACKAGE TYPE E: TO-252 U: SOT-23 X: SOT-89 Y: SOT-223 C: Commercial P: Lead Free Commercial 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: AIC1723A-18CETR PIN CONFIGURATION 3 SOT-23 (CU & PU) TOP VIEW 1: GND 2: VOUT 3: VIN 1 TO-252 (CE & PE) TOP VIEW 1: VOUT 2. GND 3. VIN 2 1 SOT-89 (CX & PX) TOP VIEW 1: GND 2. VIN 3. VOUT 2 3 1 2 3 SOT-223 (CY & PY) TOP VIEW 1: VOUT 2. GND 3. VIN 1 2 3 1.8V Version, in TO-252 Package & Tape & Reel Packing Type AIC1723A-18PYTR 1.8V Version, in SOT-223 Lead Free Package & Tape & Reel Packing Type SOT-23 MARKING Part No. CU PU Part No. CU PU AIC1723A-18XU BT18 BT18P AIC1723A-35XU BT35 BT35P AIC1723A-20XU BT20 BT20P AIC1723A-37XU BT37 BT37P AIC1723A-25XU BT25 BT25P AIC1723A-38XU BT38 BT38P AIC1723A-27XU BT27 BT27P AIC1723A-50XU BT50 BT50P AIC1723A-30XU BT30 BT30P AIC1723A-52XU BT52 BT52P AIC1723A-33XU BT33 BT33P 2 AIC1723A SOT-89 MARKING Part No. CX PX Part No. CX PX AIC1723A-18XX AV18 AV18P AIC1723A-35XX AV35 AV35P AIC1723A-20XX AV20 AV20P AIC1723A-37XX AV37 AV37P AIC1723A-25XX AV25 AV25P AIC1723A-38XX AV38 AV38P AIC1723A-27XX AV27 AV27P AIC1723A-50XX AV50 AV50P AIC1723A-30XX AV30 AV30P AIC1723A-52XX AV52 AV52P AIC1723A-33CY AV33 AV33P SOT-223 MARKING Part No. CY PY Part No. CY PY AIC1723A-18XY BU18 BU18P AIC1723A-35XY BU35 BU35P AIC1723A-20XY BU20 BU20P AIC1723A-37XY BU37 BU37P AIC1723A-25XY BU25 BU25P AIC1723A-38XY BU38 BU38P AIC1723A-27XY BU27 BU27P AIC1723A-50XY BU50 BU50P AIC1723A-30XY BU30 BU30P AIC1723A-52XY BU52 BU52P AIC1723A-33XY BU33 BU33P ABSOLUTE MAXIMUM RATINGS Input Supply Voltage ...................................................…………..…….................. -0.3~8V Operating Temperature Range …………….....………........…………................ -40°C~ 85°C Junction Temperature ……………………………………………………………………... 125°C Storage Temperature Range ....................……......................………............. -65°C~150°C Lead Temperature (Soldering. 10sec) …………………………………………………… 260°C Thermal Resistance Junction to Ambient SOT-23 Package ...….………..… 180°C/W (Assume no Ambient Airflow, no Heatsink) TO-252 Package ...….………..… 100°C/W SOT-89 Package ...….………..… 160°C/W SOT-223 Package ...….………..… 155°C/W Absolute Maximum Rating are those value beyond which the life of a device may be impaired. TEST CIRCUIT Refer to the TYPICAL APPLICATION CIRCUIT 3 AIC1723A ELECTRICAL CHARACTERISTICS otherwise specified.) (Note 1) PARAMETER Output Voltage Line Regulation Load Regulation (Note 2) Current Limit (Note 3) TEST CONDITIONS No Load AIC1723A-52 AIC1723A-50 AIC1723A-38 AIC1723A-37 AIC1723A-35 AIC1723A-33 AIC1723A-30 AIC1723A-27 AIC1723A-25 AIC1723A-20 AIC1723A-18 IL=1mA, 1.8V≤VOUT≤3.2V 3.3V≤VOUT≤5.2V IL=0.1~500mA 1.8V≤VOUT≤3.9V 4.0V≤VOUT≤5.2V IL=500mA Ground Current IO=0.1mA~IMAX 1.8V≤VOUT≤3.9V 4.0V≤VOUT≤5.2V Note 2: Note 3: Note 4: VIN=8V MIN. TYP. -2 MAX. UNIT +2 % VIN=4V~8V VIN=5.5V~8V 3 3 10 15 mV VIN=5V VIN=7V 10 20 30 50 mV VIN=7V, VOUT=0V Dropout Voltage (Note 4) Note 1: (TA=25°C, CIN=1µF, COUT=4.7µF, unless 500 4.0V≤VOUT≤5.2V 3.0V≤VOUT≤3.9V 2.5V≤VOUT≤2.9V 2.0V≤VOUT≤2.4V 1.8V≤VOUT≤1.9V VIN=5~8V VIN=7~8V mA 510 650 780 1100 1400 65 65 mV 90 90 µA Specifications are production tested at TA =25°C. Specifications over the -40°C to 85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). 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. 4 AIC1723A TYPICAL PERFORMANCE CHARACTERISTICS 600 450 AIC1723A-52 T=50°C 500 T=80°C 350 VDROP (mV) VDROP (mV) 400 300 250 200 T=25°C 150 100 AIC1723A-33 T=80°C 400 T=50°C T=25°C 300 200 T=-40°C T=-40°C 100 50 0 0 100 200 300 400 0 500 100 200 300 400 ILOAD (mA) ILOAD (mA) VDROP vs. ILOAD VDROP vs. ILOAD 440 500 560 420 AIC1723A-52 540 AIC1723A-33 400 ILOAD=500mA 520 ILOAD=500mA VDROP (mV) VDROP (mV) 0 380 360 500 480 460 340 440 320 420 400 300 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 -40 -20 Temperature (°C) 0 20 40 60 80 Temperature (°C) VDROP vs. Temperature VDROP vs. Temperature 70 AIC1723A-52 Ground Current (µA) Ground Current (µA) 60 50 40 30 20 10 0 60 AIC1723A-33 50 40 30 20 10 0 1 2 3 4 5 VIN (V) 6 Ground Current vs. VIN 7 8 0 0 1 2 3 4 5 6 7 8 VIN (V) Ground Current vs. VIN 5 AIC1723A TYPICAL PERFORMANCE CHARACTERISTICS 820 AIC1723A-33 75 800 ILOAD = 500mA 70 65 Current Limit (mA) Ground Current (µA) 80 ILOAD = 300mA 60 55 50 ILOAD = 0mA ILOAD = 100mA 45 40 -40 -20 0 20 40 60 AIC1723A 760 VIN= 6V 740 VIN= 5V 720 700 VIN= 4V 660 -40 -20 0 Temperature (°C) 40 60 80 Current Limit vs. Temperature 5.30 3.40 AIC1723A-52 5.25 5.20 5.15 3.30 3.25 5.10 3.20 5.05 3.15 -40 -20 0 AIC1723A-33 3.35 VOUT (V) VOUT (V) 20 Temperature (°C) Ground Current vs. Temperature 5.00 VIN= 7V 780 680 80 (Continued) 20 40 60 80 100 Temperature (°C) VOUT vs. Temperature 3.10 -40 -20 0 20 40 60 80 100 Temperature (°C) VOUT vs. Temperature BLOCK DIAGRAM VIN VOUT Current Limiting Error AMP + - + Thermal Shutdown 1.235V Reference GND 6 AIC1723A PIN DESCRIPTIONS VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input. PHYSICAL DIMENSIONS (unit: mm) SOT-23 (CU) (PU) D 0.25 E1 E L e A A1 b θ L1 e1 A2 c SYMBOL MIN 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 1.70 e 0.95 BSC e1 1.90 BSC L 0.30 L1 θ 0.60 0.60 REF 0˚ 8˚ 7 AIC1723A TO-252 (CE) (PE) E c2 b3 SYMBOL MIN MAX A 2.19 2.38 A1 0.00 0.13 b 0.64 0.89 b3 5.21 5.46 c 0.46 0.61 c2 0.46 0.58 D 5.33 6.22 E 6.35 6.73 A L3 D H L4 L1 c e b L e θ A1 L2 2.28 BSC H 9.40 10.41 L 1.40 1.78 L1 2.67 REF L2 0.51 BSC L3 0.89 2.03 L4 0.64 1.02 θ 0° 8° SOT-89 (CX) (PX) D A SYMBOL MIN MAX C 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 2.60 D1 H E L B e e1 B1 e 1.50 BSC e1 3.00 BSC H 3.94 4.25 L 0.89 1.20 8 AIC1723A SOT-223 (CY) (PY) D b2 A2 A e A1 E1 E e1 b 0.25 c L θ SYMBOL MIN MAX A - 1.80 A1 0.02 0.10 A2 1.55 1.65 b 0.66 0.84 b2 2.90 3.10 c 0.23 0.33 D 6.30 6.70 E 6.70 7.30 E1 3.30 3.70 e 2.30 BSC e1 4.60 BSC L 0.90 - θ 0° 8° 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