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| EZ1117/EZ1117A POWER MANAGEMENT Description The EZ1117 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. Additionally, the EZ1117 series provides excellent regulation over variations in line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. The EZ1117 series of three terminal regulators offer fixed and adjustable voltage options available in the space saving SOT-223 and TO-263 packages. 0.8 & 1.0 AMP Positive Voltage Regulators Features Low dropout performance, 1.2V max. for EZ1117 1.3V max. for EZ1117A Full current rating over line and temperature Fast transient Response 2% total output regulation over line, load and temperature Adjust pin current max 90A over temperature Fixed/adjustable output voltage Line regulation 0.2% max. Load regulation 0.4% max. SOT-223 and TO-263 packages Typical Application Circuits Adjustable Voltage Regulator (1)(2) VOUT = 4.75V 2/TAB 3 3.45V VOUT Applications Active SCSI termination Low voltage microcontrollers Switching power supply post-regulator EZ1117 1 I ADJ VREF R1 133 1% R2 232 1% + C1 10F + C2 10F TANT Ordering Information Device(1,2) EZ1117CST-X.X EZ1117ACST-X.X EZ1117CM-X.X EZ1117ACM-X.X Package SOT-223 TO-263 VOUT Volts See Note (1) See Note (1) VOUT = VREF ( 1 + R2 ) + IADJR2 R1 (1) C1 Needed if device is far from filter capacitors (2) C2 Required for Stability Fixed Voltage Regulator VOUT = 4.75V 2/TAB 3 (1)(2) EZ1117-3.3 1 IQ + C2 10F TANT 3.3V VOU Notes: (1) Where X.X denotes voltage options. Available voltages are: 2.5V, 2.85V and 3.3V. Leave blank for adjustable version (1.3 to 5.7V). Contact factory for additional voltage options. (2) Add suffix `TR' for tape and reel. + C1 10F (1) C1 Needed if device is far from filter capacitors (2) C2 Required for Stability Active SCSI Bus Terminator OUT IN EZ1117 GND + 22F + 10F 18 to 27 Lines May 23, 2006 1 www.semtech.com EZ1117/EZ1117A Absolute Maximum Ratings Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case SOT-223 TO-263 Thermal Resistance Junction to Ambient SOT-223 TO-263 Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec Symbol VIN PD JC Max 7 Internally Limited 15 3 156 60 0 to 125 -65 to 150 260 Units V W C/W JA TJ TSTG TLEAD C/W C C C Electrical Characteristics(6) Adj. Option: VIN = 2.65V to 7.0V and Adj IO = 10mA to IRATED Fixed Options: IO = 0mA to IRATED Fixed 2.5V: VIN = 3.9V to 7.0V Fixed 2.85V: VIN = 4.25V to 7.0V Fixed 3.3V: VIN = 4.75V to 7.0V Test Conditions Parameter Output Voltage(1) (Fixed Voltage Versions) Reference Voltage(1) (Adj Voltage Version) Line Regulation(1) Load Regulation(1) VREF REG(LINE) REG(LOAD) 5V 100mA Dropout Voltage(2) VD EZ1117A Current Limit EZ1117 EZ1117A ICL O.T. 0.8 1.0 500mA O.T. 800mA 1,000mA 10mA 5V 10mA Symbol VD VIN 5V IO 0mA TJ(5) 25C O.T. 25C O.T. O.T. O.T. Min 0.99|VOl 0.98|VOl 1.238 1.225 Test Limits Typ VO VO 1.250 1.250 0.035 0.2 1.00 1.05 1.10 1.10 Max 1.01|VOl 1.02|VOl 1.262 V 1.270 0.2 0.4 1.10 1.15 V 1.20 1.30 % % Units V A (c) 2006 Semtech Corp. 2 www.semtech.com EZ1117/EZ1117A Electrical Characteristics (Cont.) Test Conditions Parameter Quiescent Current Fixed Voltage Version Temperature Coefficient Adjust Pin Current Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(3) Ripple Rejection Ratio(4) NOTES: (1) (2) (3) (4) (5) (6) Low duty cycle pulse testing with Kelvin connections required. VOUT, VREF = 1%. Bandwidth of 10Hz to 10kHz. 120Hz input ripple (CADJ for ADJ = 25F). O.T. = over specified operating junction temperature range. IRATED = 1A for EZ1117A and 800mA for EZ1117. Test Limits TJ(5) O.T. O.T. O.T. O.T. O.T. Min Typ 10 0.005 55 0.2 0.5 5 0.003 60 72 10 90 5 Max 13 Units mA %/C A A % mA %VO dB Symbol IQ TC IADJ IADJ TS IO VN RA VIN 5V IO 5V O.T. 25C 5V O.T. Pin Configurations Block Diagram Input EZ1117 EZ1117A PIN 1 2 3 SOT-223 TO-263 FUNCTION ADJ/GND OUTPUT INPUT Thermal Overload Current Limiting Amplifier S.O.A Limit Output Sense TAB IS OUTPUT Voltage Regulation Amplifier VREF ADJ/COM (c) 2006 Semtech Corp. 3 www.semtech.com EZ1117/EZ1117A Outline Drawing - SOT-223 Land Pattern - SOT-223 (c) 2006 Semtech Corp. 4 www.semtech.com EZ1117/EZ1117A Outline Drawing - TO-263 Land Pattern - TO-263 (c) 2006 Semtech Corp. 5 www.semtech.com EZ1117/EZ1117A Contact Information Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 www.semtech.com (c) 2006 Semtech Corp. 6 www.semtech.com |
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