EZ1117/EZ1117A 0.8 & 1.0 AMP Positive Voltage Regulators POWER MANAGEMENT Description Features The EZ1117 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. 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 90μA over temperature Fixed/adjustable output voltage Line regulation 0.2% max. Load regulation 0.4% max. SOT-223 and TO-263 packages 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. Applications Typical Application Circuits Active SCSI termination Low voltage microcontrollers Switching power supply post-regulator Adjustable Voltage Regulator (1)(2) 3.45V VOUT 2/TAB VOUT = ≥Ξ 4.75V 3 EZ1117 VREF 1 + C1 10μF R1 133 1% R2 232 1% I ADJ Ordering Information + C2 10μF TANT Device(1,2) VOUT = VREF ( 1 + R2 ) + IADJR2 R1 (1) C1 Needed if device is far from filter capacitors (2) C2 Required for Stability Fixed Voltage Regulator 3 3.3V VOU EZ1117-3.3 + C1 10μF 1 IQ VOUT Volts EZ1117CST-X.X EZ1117ACST-X.X SOT-223 See Note (1) EZ1117CM-X.X EZ1117ACM-X.X TO-263 See Note (1) 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. (1)(2) 2/TAB ≥ VOUT = η∂4.75V Package + C2 10μF TANT (1) C1 Needed if device is far from filter capacitors (2) C2 Required for Stability Active SCSI Bus Terminator OUT IN + 10μF May 23, 2006 EZ1117 GND + 22μF 18 to 27 Lines 1 www.semtech.com EZ1117/EZ1117A Absolute Maximum Ratings Parameter Symbol Max Units Input Supply Voltage VIN 7 V Power Dissipation PD Internally Limited W Thermal Resistance Junction to Case SOT-223 θJC 15 TO-263 Thermal Resistance Junction to Ambient SOT-223 3 156 θJA TO-263 60 °C/W °C/W TJ 0 to 125 °C Storage Temperature Range TSTG -65 to 150 °C Lead Temperature (Soldering) 10 Sec TLEAD 260 °C Operating Junction Temperature Range 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) Symbol VD VIN IO TJ(5) Min Typ Max 5V 0mA 25°C 0.99|VOl VO 1.01|VOl O.T. 0.98|VOl VO 1.02|VOl 25°C 1.238 1.250 1.262 O.T. 1.225 1.250 1.270 O.T. 0.035 0.2 % O.T. 0.2 0.4 % 1.00 1.10 1.05 1.15 800mA 1.10 1.20 1,000mA 1.10 1.30 (Fixed Voltage Versions) Reference Voltage(1) (Adj Voltage Version) 5V 10mA VREF Line Regulation(1) REG(LINE) Load Regulation(1) REG(LOAD) Test Limits 10mA 5V 500mA VD EZ1117A V V 100mA Dropout Voltage(2) Units O.T. V Current Limit EZ1117 ICL O.T. EZ1117A © 2006 Semtech Corp. 0.8 A 1.0 2 www.semtech.com EZ1117/EZ1117A Electrical Characteristics (Cont.) Test Conditions Test Limits TJ(5) Typ Max Units O.T. 10 13 mA TC O.T. 0.005 IADJ O.T. 55 90 μA ∆IADJ O.T. 0.2 5 μA Temperature Stability TS O.T. 0.5 Minimum Load Current Adj Voltage Version IO O.T. 5 RMS Output Noise(3) VN 25°C 0.003 %VO Ripple Rejection Ratio(4) RA 72 dB Parameter Symbol VIN Quiescent Current Fixed Voltage Version IQ 5V Temperature Coefficient Adjust Pin Current Adjust Pin Current Change IO 5V 5V O.T. Min 60 %/°C % 10 mA 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 = 25μF). O.T. = over specified operating junction temperature range. IRATED = 1A for EZ1117A and 800mA for EZ1117. Pin Configurations Block Diagram Input S.O.A EZ1117 EZ1117A SOT-223 TO-263 PIN FUNCTION 1 ADJ/GND 2 OUTPUT 3 INPUT Limit Current Limiting Amplifier Output Sense Thermal Overload TAB IS OUTPUT Voltage Regulation Amplifier VREF ADJ/COM © 2006 Semtech Corp. 3 www.semtech.com EZ1117/EZ1117A Outline Drawing - SOT-223 Land Pattern - SOT-223 © 2006 Semtech Corp. 4 www.semtech.com EZ1117/EZ1117A Outline Drawing - TO-263 Land Pattern - TO-263 © 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 © 2006 Semtech Corp. 6 www.semtech.com