LM1117-3.3

1A Adjustable/Fixed Low Dropout Linear Regulator - Low dropout voltage - Load regulation: 0.2% typical - Optimized for Low Voltage - On-chip thermal limiting - Standard SOT-223 and TO-252 packages - Three-terminal adjustable or fixed low dropout 1.2V,1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5V. Regulators - Active SCSI terminators - High efficiency linear regulators - Post regulators for switching supplies - Battery chargers - 12V to 5V linear regulators - Motherboard clock supplies The AMS1117-ADJ and AMS1117-1.2,-1.5,-1.8,-2.5,-2.85, -3.3 and-5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in Active Terminators for SCSI bus. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent cur- rent of the AMS1117 flows into the load, increasing effi- ciency. The AMS1117 series regulators are available in the indus- try-standard SOT-223 and TO-252 power packages. Key Features Applications General Description Typical Application Notice: The distance between Vout pin and Capacitor should not exceed 4cm for excellent performance Figure 1. Typical Applications of AMS1117 Administrator AMS1117 Administrator Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 1 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Pin Assignments *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, ΘJA can vary from 30°C/W to more than 50°C/W. Other mounting techniques may provide better thermal resistance than 30°C/W. Absolute Maximum Ratings Figure 2. Pin Assignments of AMS1117 Parameter Min. Max. Unit VIN 18 V (VIN – VOUT) * IOUT See Figure 3 Operating Junction Temperature Range -20 125 °C Storage Temperature Range -65 150 °C Lead Temperature (Soldering, 10 sec.) 300 °C Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 2 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Typicals and limits appearing in normal type apply for TJ=25℃.Limits appearing in Boldface type apply over the entire junction temperature for operation, -20℃to 125℃. Electrical Characteristic Block Diagram Thermal Limit Current Limit VOUT VIN Substrate GND (fixed output) ADJ. (adjustable output) Figure 3. Block Diagram of AMS1117 Symbol Parameter Conditions Min (Note 2) Typ (Note 1) Max (Note 2) Units VREF Reference Voltage AMS1117 1.5V<=(VIN-VOUT)<=7V,10mA<=IOUT<=1A 1.225 1.250 1.275 V VOUT Output Voltage 10mA<= IOUT<=1A IOUT = 10mA, VIN = 3.2V AMS1117-1.2 ,2.7V<= VIN<=8.2V 1.176 1.152 1.200 1.200 1.224 1.248 V AMS1117-1.5 ,3.0V<= VIN<=8.5V 1.470 1.500 1.530 V AMS1117-1.8 ,3.3V<= VIN<=8.8V 1.764 1.800 1.836 V AMS1117-2.5 ,4V<= VIN<= 9.5V 2.450 2.500 2.550 V AMS1117-2.85 , 4.35V <= V IN<= 9.85V 2.793 2.850 2.907 V AMS1117-3.3 , 4.8V<= VIN <=10.3V 3.234 3.300 3.366 V AMS1117-5.0,6.5V<=VIN <= 12V 4.900 5.000 5.100 V Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 3 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Typicals and limits appearing in normal type apply for TJ=25℃.Limits appearing in Boldface type apply over the entire junction temperature for operation, -20℃ to 125℃. Electrical Characteristic (Continued) Symbol Parameter Conditions Min (Note 2) Typ (Note 1) Max (Note 2) Units △VOUT Line Regultion (Note 3) IOUT=10mA ,(VOUT+1.5V)<=VIN<=12V 0.035 0.2 % Load Regultion (Note 3) VIN-VOUT=2V,10mA<= IOUT<=1A, 0.2 0.7 % AMS1117-1.2 VIN-VOUT=2V,10mA<= IOUT<=1A, 0.2 1 % VIN-VOUT Dropout Volage IOUT=1A,△VREF=1% 1.100 1.250 V ILimit Current Limit VIN-VOUT= 2V, TJ=25℃ 1.1 1.5 A Minimum Load Current (Note 4) AMS1117-ADJ 1.5V<=(VIN-VOUT)<=10V 10 mA Quiescent Curent VIN=VOUT+1.25V 5 13 mA Thermal Regulation TA = 25°C, 30ms pulse 0.01 0.1 %/W Ripple Rejection f=120Hz,VIN-VOUT=3V, VRipple=1VPP 60 72 dB Adjust Pin Current 50 120 µA Adjust Pin Current Change 1.5V<=VIN-VOUT<=7V, 10mA<=IOUT<=1A 0.2 5 µA Temperature Stability 0.5 % Long Term Stability TA = 125°C, 1000hrs. 0.3 % Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 4 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Note 1: Typical Values represent the most likely parametric norm. Note 2: All limits are guaranteed by testing or statistical analysis. Note 3: Load and line regulation are measured at constant junction room temperature. Note 4: The minimum output current required to maintain regulation. Typical Performance Characteristics Typicals and limits appearing in normal type apply for TJ=25℃.Limits appearing in Boldface type apply over the entire junction temperature for operation, -20℃to 125℃. Electrical Characteristic (Continued) Symbol Parameter Conditions Min (Note 2) Typ (Note 1) Max (Note 2) Units ILimit RMS Output Noise(% of VOUT) TA = 25°C, 10Hz<= f <=10kHz 0.003 % Thermal Resistance, Junction to Case SOT-223 15 ℃/W TO-252 3 ℃/W Thermal Shutdown Junction Temperature 155 ℃ Thermal Shutdown Hysteresis 25 ℃ Output Current ( A ) 0 0.2 0.4 0.6 0.8 1.0 1.5 1.4 1.3 1.2 1.0 0.9 0.8 0.7 0.6 0.5 0 D ro po ut V ol ta ge ( V ) ? Figure 4. Dropout Voltage VS. Output Current Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 5 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Typical Performance Characteristics (Continued) Figure 6. Output Voltage VS. Temperature O ut pu t V ol ta ge ( V ) ? 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 3.30 3.25 3.20 Junction Temperature ( ℃ ) -75 –50 –25 0 25 50 75 100 125 150 175 Figure 5. Reference Voltage VS. Temperature R ef er en ce V ol ta ge ( V ) ? 0.260 1.255 1.250 1.245 1.240 1.235 1.225 1.220 1.215 1.210 Junction Temperature ( ℃ ) -75 –50 –25 0 25 50 75 100 125 150 175 Figure 7. Minimum Load Current VS. Temperature M in im um L oa d C ur re nt ( m A ) ? 5 4 3 2 1 0 Junction Temperature ( ℃ ) -75 –50 –25 0 25 50 75 100 125 150 175 Figure 8. ADJ Pin Current VS. Temperature A D J P in C ur re nt ( µ A ) ? 100 90 80 70 60 50 40 30 20 10 0 Junction Temperature ( ℃ ) -75 –50 –25 0 25 50 75 100 125 150 175 Note: AMS1117 Only Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 6 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Mechanical Dimensions 4-Lead SOT-223 Package Symbol Inches Millimeters Notes Min. Max. Min. Max. A Ñ .071 Ñ 1.80 A1 Ñ .181 Ñ 4.80 B .025 .033 .064 .840 c Ñ 0.90 Ñ 2.29 D .248 .264 6.30 6.71 E .130 .148 3.30 3.71 e .115 .124 2.95 3.15 F .033 .041 .840 1.04 H .264 .287 6.71 7.29 I .0121 Ñ .310 Ñ J Ñ 10° Ñ 10° K 10° 16° 10° 16° L .0008 .0040 .0203 .1018 M 10° 16° 10° 16° N .010 .014 .250 .360 Figure 9. 4-Lead SOT-223 Package Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 7 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Mechanical Dimensions (Continued) 3-Lead TO-252 Package Notes: 1. Dimensions are exclusive of mold flash, metal burrs or interlead protrusion. 2. Stand off-height is measured from lead tip with ref. to Datum –B-. 3. Foot length is measured with ref. to Datum –A– with lead surface. 4. Thermal pad contour optional within dimension b3 and L3. 5. Formed leads to be planar with respect to one another at seating place –C-. 6. Dimensions and tolerances. Symbol Inches Millimeters Notes Min. Max. Min. Max. A .086 .094 2.19 2.39 b .025 .035 0.64 0.89 b2 .030 .045 0.76 1.14 b3 .205 .215 5.12 5.46 4 c .018 .024 0.46 0.61 c2 .018 .023 0.46 0.58 D .210 .245 5.33 6.22 1 E .250 .265 6.35 6.73 1 e .090 BSC 2.29 BSC H .370 .410 9.40 10.41 L .055 .070 1.40 1.78 3 L1 .108 REF 2.74 REF L3 .035 .080 0.89 2.03 4 L4 .025 .040 0.64 1.02 Figure 10. 3-Lead TO-252 Package 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 8 Administrator 1A Adjustable/Fixed Low Dropout Linear Regulator Advanced Monolithic Systems http://www.ams-semitech.com The " " logo is a registered trademark of Advanced Monolithic Systems. All other company and product names are trademarks of their respective owners Ordering Information Package Temperature Range Part Number Output Voltage Packing Marking Transport Media SOT－223 -20℃ - +125℃ AMS1117-1.2 1.2V AMS1117 1.2 2.5K Tape and Reel -20℃ - +125℃ AMS1117-1.5 1.5V AMS1117 1.5 2.5K Tape and Reel -20℃ - +125℃ AMS1117-1.8 1.8V AMS1117 1.8 2.5K Tape and Reel -20℃ - +125℃ AMS1117-2.5 2.5V AMS1117 2.5 2.5K Tape and Reel -20℃ - +125℃ AMS1117-2.85 2.85V AMS1117 2.8 2.5K Tape and Reel -20℃ - +125℃ AMS1117-3.3 3.3V AMS1117 3.3 2.5K Tape and Reel -20℃ - +125℃ AMS1117-5 5V AMS1117 5 2.5K Tape and Reel -20℃ - +125℃ AMS1117 Adjust AMS1117 2.5K Tape and Reel TO－252 -20℃ - +125℃ AMS1117-1.2 1.2V AMS1117 1.2 2.5K Tape and Reel -20℃ - +125℃ AMS1117-1.5 1.5V AMS1117 1.5 2.5K Tape and Reel -20℃ - +125℃ AMS1117-1.8 1.8V AMS1117 1.8 2.5K Tape and Reel -20℃ - +125℃ AMS1117-2.5 2.5V AMS1117 2.5 2.5K Tape and Reel -20℃ - +125℃ AMS1117-2.85 2.85V AMS1117 2.8 2.5K Tape and Reel -20℃ - +125℃ AMS1117-3.3 3.3V AMS1117 3.3 2.5K Tape and Reel -20℃ - +125℃ AMS1117-5 5.0V AMS1117 5 2.5K Tape and Reel -20℃ - +125℃ AMS1117CD Adjust AMS1117CD 2.5K Tape and Reel Disclaimer: • AMS reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! Customers should obtain the latest relevant information before placing orders and should verify that such information is complete and current. • All semiconductor products malfunction or fail with some probability under special conditions. When using AMS products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such AMS products could cause loss of body injury or damage to property. • AMS will supply the best possible product for customers! Administrator AMS1117 Administrator Advanced Monolithic Systems http://www.ams-semitech.com Administrator 9 Administrator A.pdf DESCRIPTION FEATURES APPLICATIONS ORDERING INFORMATION (Temperature range: -40(C ~125(C) BLOCK DIAGRAM ABOSOLUTE MAXIMUM RATINGS RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS (Tamb=25°C, unless otherwise specified. Limits appearing in Boldface type apply over the entire junction temperature range for operation, -40°C to 125°C. ) PIN CONFIGURATION PIN DESCRIPTION FUNCTION DESCRIPTION TYPICAL APPLICATION CIRCUIT TYPICAL CHARACTERISTICS CURVES PACKAGE OUTLINE PACKAGE OUTLINE PACKAGE OUTLINE Untitled Untitled Untitled Untitled Untitled