CJA1117B(芯片资料).pdf-资料库

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD 1A LOW DROPOUT LINEAR REGULATOR CJA1117B-XXX FEATURES  Low Dropout Voltage: 1.15V at 1A Output Current  Trimmed Current Limit  On-Chip Thermal Shutdown  Three-Terminal Adjustable or Fixed 1.8V, 2.5V, 3.3V, 5V  Operation Junction Temperature: -25 ℃ to 125℃ GENERAL DESCRIPTION SOT-89-3L 1. ADJ/GND 2. OUTPUT 3.IN The CJA1117B-XXX is a series of low dropout three-terminal regulators with a dropout of 1.15V at 1A output current. The CJA1117B-XXX series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandage. reference to assure output voltage accuracy to be within 1.5%. Current limit is trimmed to ensure specified. output current and controlled short-circuit current. On-chip thermal shutdown provides protection against any combination of overload and ambient temperature that would create excessive junction temperature. The CJA1117B-XXX has an adjustable version, that can provide the output voltage from 1.25V to 5V with only 2 external resistors. APPLICATIONS  PC Motherboard  LCD Monitor  Graphic Card  DVD-Video Player  NIC/Switch  Telecom Modem  ADSL Modem  Printer and other peripheral Equipment Marking: A1117B 121 www.cj-elec.com 1 E,Mar,2016

ORDERING INFORMATION Package Operating Junction Temperature Range SOT-89-3L -25 to 125℃ ABOSLUTE MAXIMUM RATINGS (Ta=25℃ unless otherwise noted) Parameter Input Voltage Maximum Junction Temperature Storage Temperature Thermal Resistance from Junction to Ambient Lead Temperature (Soldering, 10sec.) ESD Voltage (Machine Model) Symbol Vi Tj Tstg RθJA TL VESD Value 20 150 -55~+150 250 260 400 Part NO. CJA1117B-ADJ CJA1117B-1.8 CJA1117B-2.5 CJA1117B-3.3 CJA1117B-5.0 Unit V ℃ ℃ ℃/W ℃ V Note: Stresses greater than those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter Input Voltage Operating Junction Temperature Symbol Vi Tj Value 15 -25~+125 Unit V ℃ www.cj-elec.com 2 E,Mar,2016

ELECTRICAL CHARACTERISTICS (VIN≤10V, TJ=25℃ unless otherwise specified. ) Typ Test conditions Parameter Part NO. Symbol Min Reference Voltage VIROC CJA1117B-ADJ Output Voltage VO CJA1117B-1.8 CJA1117B-2.5 CJA1117B-3.3 CJA1117B-5.0 IOUT=10mA, VIN -VOUT =3.23 10mA≤IOUT≤1A, 2.75V≤VIN -VOUT ≤13.25V IOUT=10mA, VIN=3.8V 10mA≤IOUT≤1A, 3.3V≤VIN ≤12V IOUT=10mA, VIN=4.5V 10mA≤IOUT≤1A, 4V≤VIN ≤12V IOUT=10mA, VIN=5.3V 10mA≤IOUT≤1A, 4.8V≤VIN ≤12V IOUT=10mA, VIN=7.0V 10mA≤IOUT≤1A, 6.5V≤VIN ≤12V CJA1117B-ADJ IOUT=10mA, 1.5V≤VIN -VOUT ≤12V CJA1117B-1.8 IOUT=10mA, 1.5V≤VIN -VOUT ≤10.2V Line Regulation LNR CJA1117B-2.5 IOUT=10mA, 1.5V≤VIN -VOUT ≤9.5V CJA1117B-3.3 IOUT=10mA, 1.5V≤VIN -VOUT ≤8.7V CJA1117B-5.0 IOUT=10mA, 1.5V≤VIN -VOUT ≤7V CJA1117B-ADJ CJA1117B-1.8 Load Regulation LDR CJA1117B-2.5 VIN-VOUT=1.5V, 10mA≤IOUT ≤1A CJA1117B-3.3 CJA1117B-5.0 Dropout Voltage Current Limit Adjust Pin Current Minimum Load Current Quiescent Current Ripple Rejection Temperature Stability VD Ilimit IL Iq RR ΔVREF=1%, IOUT=1.0A VIN-VOUT=2V 1.5V≤VIN -VOUT ≤12V (ADJ only) VIN= VOUT+1.25V(ADJ except) f=120Hz,COUT=22μFTantalum, VIN-VOUT=3V, IOUT=1A 1.231 1.225 1.250 1.250 1.773 1.764 2.463 2.450 3.251 3.234 4.925 4.9 1 60 1.8 1.8 2.5 2.5 3.3 3.3 5.0 5.0 0.035 1 1 1 1 0.2 60 1.7 5 75 0.5 Max 1.269 1.275 1.827 1.836 2.538 2.550 3.350 3.366 5.075 5.1 0.2 7 7 7 10 0.4 7.2 10 13.2 20 1.3 120 5 10 Unit V V V V V % mV % mV V A μA μA mA dB % TA=125 , 1000hrs Long-Term Stability RMS Output Noise (% of VOUT) Thermal Shutdown Hysteresis * With package soldering to copper area over backside ground plane or internal power plane RθJA can vary from 46 ℃/W to >90℃/W depending on mounting technique and the size of the copper area TA=25 , 10Hz≤f ≤10kHz 0.003 0.3 25 ℃ % % ℃ ℃ www.cj-elec.com 3 E,Mar,2016

FUNCTIONAL BLOCK DIAGRAM TYPICAL APPLICATION CIRCUIT www.cj-elec.com 4 E,Mar,2016

SOT-89-3L Package Outline Dimensions Symbol A b b1 c D D1 E E1 e e1 L SOT-89-3L Suggested Pad Layout Dimensions In Millimeters Max 1.600 0.520 0.580 0.440 4.600 Min 1.400 0.320 0.400 0.350 4.400 2.300 3.940 0.900 Dimensions In Inches Min Max 0.063 0.055 0.013 0.020 0.023 0.016 0.017 0.014 0.173 0.181 0.061 REF. 0.060 TYP. 0.118 TYP. 0.102 0.167 0.047 1.550 REF. 1.500 TYP. 3.000 TYP. 2.600 4.250 1.200 0.091 0.155 0.035 www.cj-elec.com 5 E,Mar,2016

SOT-89-3L Tape and Reel www.cj-elec.com 6 E,Mar,2016

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