AMS1117 0.8A Adjustable/Fixed Low Dropout Linear Regulator General Description Key Features The AMS1117-ADJ and AMS1117-1.2,-1.5,-1.8,-1.9,-2.5 -3.3 and-5.0 are low dropout three-terminal regulators with 0.8A output current capability.These devices have been optimized for low voltage where transient response and minimum input voltage are critical. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. - Low dropout voltage Load regulation: 0.2% typical Optimized for Low Voltage On-chip thermal limiting Standard SOT-89 packages Three-terminal adjustable or fixed low dropout 1.2V,1.5V,1.8V, 1.9V, 2.5V, 3.3V, 5V. Regulators Applications - High efficiency linear regulators - Post regulators for switching supplies - Battery chargers - 12V to 5V linear regulators - Motherboard clock supplies The AMS1117 series regulators are available in the industry-standard SOT-89 packages. Typical Application Typical Applications of AMS1117 Notice: The distance between Vout pin and Capacitor should not exceed 4cm for excellent performance 1 Advanced Monolithic Systems http://www.ams-semitech.com AMS1117 SOT-89 Unit:mm 1.50 ±0.1 4.50±0.1 2.50±0.1 4.00±0.1 1.80±0.1 0.44±0.1 0.40±0.1 0.53±0.1 2.60±0.1 0.48±0.1 0.80±0.1 3 2 1 3.00±0.1 1 Adj(GND) 21.Base Vout 2.Collector 33.Emitter Vin ■ Absolute Maximum Ratings Ta = 25℃ Parameter Symbol Rating Unit Maximum Input Voltage Vin 18 V Power Dissipation PD Internally Limited Operating Junction Temperature Range TJ 150 ℃ Storage Temperature TST -65 to +150 ℃ Block Diagram 3 2 Vout + + 1.25V － + CURRENT LIMIT 1 + Thermal Shutdown － Vin 2 Advanced Monolithic Systems GND (FIXED) 1 Adj 1 http://www.ams-semitech.com AMS1117 ■ Electrical Characteristics Ta = 25℃ Parameter Reference Voltage Output Voltage Testconditons Vref Vout Min Typ Max Unit AMS1117-ADJ 10mA≤Iout≤800mA, 1.5V≤Vin-Vout≤12V 1.225 AMS1117-1.2 1.250 1.275 V 0≤Iout≤800mA,2.6V≤Vin-Vout≤12V 1.175 1.200 1.225 V AMS1117-1.5 0≤Iout≤800mA, 2.9V≤Vin-Vout≤12V 1.470 1.500 1.530 V AMS1117-1.8 0≤Iout≤800mA, 3.2V≤Vin-Vout≤12V 1.764 1.800 1.836 V AMS1117-1.9 0≤Iout≤800mA,3.3V≤Vin-Vout≤12V 1.862 1.900 1.938 V AMS1117-2.5 0≤Iout≤800mA, 3.9V≤Vin-Vout≤12V 2.450 2.500 2.550 V AMS1117-3.3 0≤Iout≤800mA, 4.75V≤Vin-Vout≤12V 3.234 3.300 3.366 V AMS1117-5.0 0≤Iout≤800mA, 6.5V≤Vin-Vout≤12V 4.900 5.000 5.100 V AMS1117-ADJ Iout=10mA,1.5V≤Vin-Vout≤13.775V Line Regulation △Vout 0.035 0.2 % AMS1117-1.2 Iout=10mA,2.6V≤Vin-Vout≤12V 9 12 mV AMS1117-1.5 Iout=10mA, 2.9V≤Vin-Vout≤12V 9 12 mV AMS1117-1.8 Iout=10mA, 3.2V≤Vin-Vout≤12V 9 12 mV AMS1117-1.9 Iout=10mA,3.3V≤Vin-Vout≤12V 9 12 mV AMS1117-2.5 Iout=10mA, 3.9V≤Vin-Vout≤12V 9 12 mV AMS1117-3.3 Iout=10mA, 4.75V≤Vin-Vout≤12V 9 12 mV Iout=10mA, 6.5V≤Vin-Vout≤12V 9 12 mV 0.2 0.4 % 10 mV 10 mV AMS1117-5.0 AMS1117-ADJ Vin-Vout=3V,10mA≤Iout≤800mA Load Regulation △Vout AMS1117-1.2 Vin=2.6V,0≤Iout≤800mA 3 AMS1117-1.5 Vin=2.9V,0≤Iout≤800mA 3 AMS1117-1.8 Vin=3.2V,0≤Iout≤800mA 3 10 mV AMS1117-1.9 Vin=3.3V,0≤Iout≤800mA 3 10 mV AMS1117-2.5 Vin=3.9V,0≤Iout≤800mA 3 10 mV AMS1117-3.3 Vin=4.75V,0≤Iout≤800mA 3 10 mV mV AMS1117-5.0 3 10 1.11 1.2 AMS1117-XXX △Vout,△Vref=1%,Iout=500mA 1.18 1.25 V △Vout,△Vref=1%,Iout=800mA 1.26 1.3 V Vin=6.5V,0≤Iout≤800mA △Vout,△Vref=1%,Iout=100mA Dropout Voltage Current Limit Vin-Vout Ilimit Minimum Load Current Quiescent current Iq AMS1117-XXX VIN-VOUT = 5V,Tj=25℃ 1.25 V 1.4 1.6 A AMS1117-XXX AMS1117-ADJ 5 10 mA AMS1117-1.2 Vin-Vout=1.25V 4 8 mA AMS1117-1.5 Vin-Vout=1.25V 4 8 mA AMS1117-1.8 Vin-Vout=1.25V 4 8 mA AMS1117-1.9 Vin-Vout=1.25V 4 8 mA AMS1117-2.5 Vin-Vout=1.25V 4 8 mA AMS1117-3.3 Vin-Vout=1.25V 4 8 mA AMS1117-5.0 Vin-Vout=1.25V 4 8 mA 120 μA Adjust Pin Current (Adjutable Version) Iadj 55 Adjust Pin Current Change Ichange 0.2 3 Advanced Monolithic Systems http://www.ams-semitech.com μA AMS1117 Typical Characteristics Fig.2 Load Regulation vs Temperature Fig.1 Dropout Voltage vs Output Current Fig.3 Percent Change in Output Voltage vs Temperature Fig.4 Line Regulation Fig.5 Line Transient Response Fig.6 Load Transient Response 4 Advanced Monolithic Systems http://www.ams-semitech.com AMS1117 Ordering Information Deviece Packaging AMS1117-X.X SOT-89 Shipping 1000/Tape&Reel Marking Marking 1117-X.X 5 Advanced Monolithic Systems http://www.ams-semitech.com