CJA1117B-5.0

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD 1A LOW DROPOUT LINEAR REGULATOR CJA1117B-XXX GENERAL DESCRIPTION The CJA1117B-XXX is a series of low dropout three-terminal regulators with a dropout of 1.15V(typ.) at 1A output current. The CJA1117B-XXX series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap. 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. FEATURES z Low Dropout Voltage: 1.15V(typ.) at 1A Output Current z Trimmed Current Limit z On-Chip Thermal Shutdown z Three-Terminal Adjustable or Fixed 1.8V, 2.5V, 3.3V, 5V z Operation Junction Temperature: 0 ℃ to 125℃ APPLICATIONS z PC Motherboard z LCD Monitor z Graphic Card z DVD-Video Player z NIC/Switch z Telecom Modem z ADSL Modem z Printer and Other Peripheral Equipment PACKAGE AND PIN CONFIGURATIONS SOT – 89-3L 1. ADJ/GND 2. OUTPUT 3.IN C,Sep,2013 ORDERING INFORMATION Package Operating Junction Temperature Range Part NO. CJA1117B-ADJ CJA1117B-1.8 SOT-89-3L 0 to 125℃ CJA1117B-2.5 CJA1117B-3.3 CJA1117B-5.0 ABOSLUTE MAXIMUM RATINGS (Ta=25℃ unless otherwise noted) Parameter Symbol Value Unit Vi 20 V Input Voltage Tj 150 ℃ Tstg RθJA -55~+150 250 ℃ ℃/W TL 260 ℃ VESD 400 V Maximum Junction Temperature Storage Temperature Thermal Resistance from Junction to Ambient Lead Temperature (Soldering, 10sec.) ESD Voltage (Machine Model) 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 Symbol Value Unit Input Voltage Vi 15 V Operating Junction Temperature Tj 0~+125 ℃ C,Sep,2013 ELECTRICAL CHARACTERISTICS (VIN≤10V, TJ=25℃ unless otherwise specified. ) Parameter Reference Voltage Symbol VIROC Part NO. CJA1117B-2.5 VO CJA1117B-3.3 CJA1117B-5.0 Line Regulation LNR conditions Min Typ Max IOUT=10mA, VIN -VOUT =3.23 1.231 1.250 1.269 10mA≤IOUT≤1A, 2.75V≤VIN -VOUT ≤13.25V 1.225 1.250 1.275 CJA1117B-ADJ CJA1117B-1.8 Output Voltage Test IOUT=10mA, VIN=3.8V 1.773 1.8 1.827 10mA≤IOUT≤1A, 3.3V≤VIN ≤12V 1.764 1.8 1.836 IOUT=10mA, VIN=4.5V 2.463 2.5 2.538 10mA≤IOUT≤1A, 4V≤VIN ≤12V 2.450 2.5 2.550 IOUT=10mA, VIN=5.3V 3.251 3.3 3.350 10mA≤IOUT≤1A, 4.8V≤VIN ≤12V 3.234 3.3 3.366 IOUT=10mA, VIN=7.0V 4.925 5.0 5.075 4.9 5.0 5.1 0.035 0.2 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 1 7 CJA1117B-2.5 IOUT=10mA, 1.5V≤VIN -VOUT ≤9.5V 1 7 CJA1117B-3.3 IOUT=10mA, 1.5V≤VIN -VOUT ≤8.7V 1 7 CJA1117B-5.0 IOUT=10mA, 1.5V≤VIN -VOUT ≤7V 1 10 0.2 0.4 CJA1117B-ADJ LDR CJA1117B-2.5 VIN-VOUT=1.5V, 10mA≤IOUT ≤1A 10 CJA1117B-3.3 13.2 CJA1117B-5.0 20 Dropout Voltage VD ΔVREF=1%, IOUT=1.0A Current Limit Ilimit VIN-VOUT=2V 1.3 1 Adjust Pin Current Minimum Load Current Quiescent Current Ripple Rejection IL 1.5V≤VIN -VOUT ≤12V (ADJ only) Iq VIN= VOUT+1.25V(ADJ except) RR f=120Hz,COUT=22μFTantalum, VIN-VOUT=3V, IOUT=1A Temperature Stability Long-Term Stability TA=125℃, 1000hrs RMS Output TA=25℃, 10Hz≤f ≤10kHz Noise (% of VOUT) V V V V V % mV % 7.2 CJA1117B-1.8 Load Regulation Unit Thermal Shutdown Hysteresis 60 mV V A 60 120 μA 1.7 5 μA 5 10 mA 75 dB 0.5 % 0.3 % 0.003 % 25 ℃ * 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 C,Sep,2013 FUNCTIONAL BLOCK DIAGRAM TYPICAL APPLICATION CIRCUIT C,Sep,2013