EZ1117/EZ1117A 0.8 & 1.0 AMP Positive Voltage Regulators POWER MANAGEMENT DescriptionDescription FeaturesFeatures The EZ1117 series of high performance positive voltage Low dropout performance, regulators are designed for use in applications requiring 1.2V max. for EZ1117 low dropout performance at full rated current. 1.3V max. for EZ1117A Full current rating over line and temperature Additionally, the EZ1117 series provides excellent Fast transient Response regulation over variations in line, load and temperature. 2% total output regulation over line, load and Outstanding features include low dropout performance temperature at rated current, fast transient response, internal current Adjust pin current max 90 A over temperature limiting and thermal shutdown protection of the output Fixed/adjustable output voltage device. The EZ1117 series of three terminal regulators Line regulation 0.2% max. offer xed and adjustable voltage options available in Load regulation 0.4% max. the space saving SOT-223 and TO-263 packages. SOT-223 and TO-263 packages ApplicationsApplications TTyypical Application pical Application CircuitsCircuits Active SCSI termination (1)(2) Adjustable Voltage Regulator Low voltage microcontrollers 3.45V 2/TAB Switching power supply post-regulator V = 4.75V OUT V OUT 3 R1 EZ1117 133 V REF 1% 1 + OOrdering Informationrdering Information + C2 R2 C1 I ADJ (1,2) 10 F 10F 232 Device Package V Volts OUT TANT 1% EZ1117CST-X.X SOT-223 See Note (1) EZ1117ACST-X.X V = V 1 + R2 + I R OUT REF ADJ 2 ( ) R1 EZ1117CM-X.X (1) C1 Needed if device is far from filter capacitors TO-263 See Note (1) (2) C2 Required for Stability EZ1117ACM-X.X Notes: (1)(2) (1) Where X.X denotes voltage options. Available voltages are: Fixed Voltage Regulator 2.5V, 2.85V and 3.3V. Leave blank for adjustable version (1.3 to 3.3V 2/TAB 5.7V). Contact factory for additional voltage options. V = 4.75V OUT V OU 3 (2) Add suf x TR for tape and reel. EZ1117-3.3 1 + + C2 C1 I 10 F Q 10F TANT (1) C1 Needed if device is far from filter capacitors (2) C2 Required for Stability Active SCSI Bus Terminator OUT IN EZ1117 GND + + 18 to 27 10 F 22 F Lines May 23, 2006 1 www.semtech.comEZ1117/EZ1117A AAbsolute Maximum Ratingsbsolute Maximum Ratings Parameter Symbol Max Units Input Supply Voltage V 7V IN Power Dissipation P Internally Limited W D Thermal Resistance Junction to Case SOT-223 15 JC C/W TO-263 3 Thermal Resistance Junction to Ambient SOT-223 156 C/W JA TO-263 60 Operating Junction Temperature Range T 0 to 125 C J Storage Temperature Range T -65 to 150 C STG Lead Temperature (Soldering) 10 Sec T 260 C LEAD ((6)6) EElectrical Characteristicslectrical Characteristics Adj. Option: V = 2.65V to 7.0V and Adj I = 10mA to I IN O RATED Fixed Options: I = 0mA to I O RATED Fixed 2.5V: V = 3.9V to 7.0V IN Fixed 2.85V: V = 4.25V to 7.0V IN Fixed 3.3V: V = 4.75V to 7.0V IN Test Conditions Test Limits (5) Parameter Symbol V I T Min Typ Max Units IN O J (1) Output Voltage 5V 0mA 25C 0.99 VlV 1.01 V l O O O V D V (Fixed Voltage Versions) O.T. 0.98 VlV 1.02 V l O O O (1) Reference Voltage 5V 10mA 25C 1.238 1.250 1.262 V V REF (Adj Voltage Version) O.T. 1.225 1.250 1.270 (1) Line Regulation REG 10mA O.T. 0.035 0.2 % (LINE) (1) Load Regulation REG 5V O.T. 0.2 0.4 % (LOAD) 100mA 1.00 1.10 (2) Dropout Voltage 500mA 1.05 1.15 V O.T. V D 800mA 1.10 1.20 EZ1117A 1,000mA 1.10 1.30 Current Limit EZ1117 I O.T. 0.8 A CL EZ1117A 1.0 2006 Semtech Corp. www.semtech.com 2