AMS1117-3.3V

富满微电子集团股份有限公司 FINE MADE MICROELECTRONICS GROUP CO., LTD. AMS1117(文件编号：S&CIC0539) 800mA Adjustable & Fixed Voltage LDO Linear Regulator General description The AMS1117 is a low-dropout linear regulator that operates in the input voltage range from +2.5V to +12.0V and delivers 800mA output current. The AMS1117 is available in two types, fixed output voltage type or adjustable output voltage type. The fixed output voltage type is preset at an internally trimmed voltage 1.8V, 2.5V, or 3.3V. Other options 1.5V, 2.85V, 3.0V and 3.6V are available by special order only. The output voltage range of the adjustable type is from 1.25V to 5V. The AMS1117 consists of a 1.25V bandgap reference, an error amplifier, and a P-channel pass transistor. Other features include short-circuit protection and thermal shutdown protection. The AMS1117 devices are available in SOT-223 and TO-252 packages. Features          Low dropout voltage 1300mV at 800mA typ. Adjustable output voltage (AMS1117-Cx) or fixed output voltage (AMS1117-xxCx) preset at 1.8V, 2.5V, or 3.3V High output voltage accuracy Fixed output voltage: Vout±2%mV Adjustable output voltage: ±50mV Small output capacitor Output current limit Thermal overload shutdown protection SOT-2231 and TO-252 packages 2 3 Applications D  Active SCSI terminators AM S1 11 7- XX X X  High efficiency linear Package regulators G:SOT-223 1.IN  Monitor microprocessors H:SOT-223 1.GND J:SOT-223 1.GND  Low voltage micro-controllers P:TO-252 1.IN R:TO-252 power 1.GND  Post regulator for switching Pin Out 2.GND 3.OUT 2.IN 3.OUT 2.OUT 3.IN 2.GND 3.OUT 2.OUT 3.IN Note:For the adjustable voltage types,the GND pin is replaced with the ADJ pin Temperature Range Ordering information C:Commercial Standard AMS1117-- XX P:Commercial Standard,Lead(Pb) Free and phosphorous(P) Free Package Output Voltage (For fixed voltage types lnly.for adjustable voltage types,these two digits are eliminated.) 15:1.5V 18:1.8V 25:2.5V 29:2.85V 30:3.0V 33:3.3V 36:3.6V Default: Adjustable Output C Note:The output voltages other than the preset values are available by order only. www.superchip.cn 第 1 页 共 11 页 Version 1.1 富满微电子集团股份有限公司 FINE MADE MICROELECTRONICS GROUP CO., LTD. AMS1117(文件编号：S&CIC0539) 800mA Adjustable & Fixed Voltage LDO Linear Regulator Pin configurations PartNo. Pin1C Pin2 Pin3 AMS1117-XX GND/ADJ OUT (TAP) IN TO-252 SOT-223 AMS1117 XXXXXXXX AMS1117 XXXXXXXX 2 1 1 2 3 3 B Pin description Part No Symbol Description GND/ADJ Ground pin or adjust terminal pin IN Regulator input pin OUT Regulator output pin AMS1117-xx IN is the regulator input pin. Supply voltage can range from 2.5V to 12.0V. Bypass with a 10uF capacitor to GND. OUT is the output voltage pin. Sources up to 800mA. Bypass with a 10uF capacitor to GND. GND provides the reference for all voltages. ADJ provides VREF=1.25V (TYP.) for adjustable output voltage. A 1 2 www.superchip.cn 2 3 第 2 页 共 11 页 Version 1.1 富满微电子集团股份有限公司 FINE MADE MICROELECTRONICS GROUP CO., LTD. AMS1117(文件编号：S&CIC0539) 1 800mA Adjustable & Fixed Voltage LDO Linear Regulator 2 3 3 4 4 Typical application circuit 5 5 6 AMS1117-Cx VIN VIN 10uF VOUT VOUT 10uF + ADJ + D VREF R1 IADJ VOUT=VREF×(1+R2/R1)+Iadj×R2 R2 AMS1117-xxCx VIN VIN 10uF VOUT VOUT 10uF + ADJ + C Functional block diagrams IN IN - - Current Limit Current Limit + + Thermal Protection B Thermal Protection Shutdown Logic Shutdown Logic OUT 1.25V Bandgap Reference OUT 1.25V Bandgap Reference R1 R2 GND Fixed Voltage Type ADJ Title Adjustable Voltage Type Size Nu mber A B Date: File: Title 1 2 3 Size Absolute maximum ratings 3 4 1 8-Mar-2 0 08 E:\规格书\规格图\规格图-0 \ZBO\SC1 5 Revision Number B Date: File: 4 5 11-May -2006 Sheet of E:\规格书\规格图\规格图-0\ZBO\SC8860.ddb Drawn By : 6 Input voltage VIN to GND-----------------------------------------------------------------------------12.0V Output current limit, I(LIMIT)-----------------------------------------------------------------------------------------------------------------800mA Continuous power dissipation------------------------------------------------------------------------Internally limited Junction temperature, TJ----------------------------------------------------------------------------------------------------------------------+155℃ Storage temperature range, TSTG---------------------------------------------------------------------------------------------------------55℃ to +150℃ Operating junction temperature range---------------------------------------------------------------40℃ to +125℃ Lead temperature (soldering, 10sec)----------------------------------------------------------------260℃ * Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and function operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability www.superchip.cn 第 3 页 共 11 页 Version 1.1 富满微电子集团股份有限公司 FINE MADE MICROELECTRONICS GROUP CO., LTD. AMS1117(文件编号：S&CIC0539) 800mA Adjustable & Fixed Voltage LDO Linear Regulator Electrical characteristics(CIN=10uF, COUT=10uF, TA=25℃, unless otherwise noted.) Symbol Parameter VIN Input voltage VOUT △VOUT Output voltage Output voltage accuracy Test Conditions Maximum output current ILIMIT Current limit Typ 2.5 Max Unit 12.0 V Fixed voltage type VIN=VOUT+1.0V, IOUT=1mA VOUT* （1-2%） VOUT VOUT*（1 +2%） V Adjustable voltage type VIN=VOUT+1.2V, IOUT=1mA 1.2 1.25 1.3 V VIN>VOUT+2.0V, voltage type) VIN ≤ 12V(fixed VIN>VOUT+1.5V, VIN≤12V(adjustable voltage type) IMAX Min -VOUT*2 +VOUT*2 % % -50 +50 0.8 mV A 2.1 A 300 500 mA ISC Short-circuit current IQ Ground pin current ILOAD=0mA, VIN=VOUT+1.0V 2 5 mA IADJ ADJ pin current ILOAD=0mA to 800mA, VIN=5.0V 55 150 uA IOUT=100mA 1200 1300 mV VDROP Dropout voltage (fixed output voltage Version ) IOUT=500mA 1200 1300 mV IOUT=700mA 1300 1500 mV VOUT+1.5V