SEMTECH SC1117 handbook
Contents
1. 262 Adjustable Voltage T 1 225 1 270 Version Line Regulation T 0 2 Load Regulation T 0 4 Dropout Voltage AVout A Veer 1 Current Limit 1 3 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 Ripple Rejection Ratio NOTES 1 Low duty cycle pulse testing with Kelvin connections required 2 Bandwidth of 10 Hz to 10kHz 3 120Hz input ripple C45 for ADJ 25pF 4 Over Temp O T over specified operating junction temperature range 2 1998 SEMTECH CORP 652 MITCHELL ROAD NEWBURY PARK CA 91320 1998 SEMTECH CORP 9 SEMITECH 0 8 AMP POSITIVE SC1117 Today s Results Tomorr VOLTAGE REGULATOR April 13 1998 TYPICAL APPLICATIONS FIXED VOLTAGE REGULATOR A Vin 6 a 2 1 S e OV Vout SC1117 X X C2 ie 10uF Thu TANT e e O 1 C1 NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS 2 C2 REQUIRED FOR STABILITY XX 2 85 5 5 OR DO ADJUSTABLE VOLTAGE REGULATOR Vin gt Vo 1 5V oe 2 TAB e e O 12V Vout SC1117 _ R1 VREF E 124 x 1 P C2 pa l 10uF m TANT 10uF ADJ R2 1070 1 O e e de O _ R2 Vout Vref ie ye agg BS 1 C1 NEEDED IF DEVIC2. Dg Sci oo Today s Results Tomorri April 13 1998 DESCRIPTION The SC1117 series of high performance positive volt age regulators are designed for use in applications re quiring low dropout performance at full rated current Additionally the SC1117 series provides excellent reg ulation over variations in line load and temperature Outstanding features include low dropout performance at rated current fast transient response internal cur rent limiting and thermal shutdown protection of the output device The SC1117 series of three terminal regulators offer fixed and adjustable voltage options available in both space saving SOT 223 and TO 263 packages APPLICATIONS Low voltage microcontrollers e Switching power supply post regulator BLOCK DIAGRAM CURRENT LIMITING AMPLIFIER OUTPUT THERMAL OVERLOAD VOLTAGE REGULATION AMPLIFIER O ADJ COM PIN CONFIGURATIONS C1117 FUNCTION ADJ GND OUTPUT INPUT TAB IS OUTPUT TO 263 SOT 223 1998 SEMTECH CORP 0 8 AMP POSITIVE VOLTAGE REGULATOR C1117 TEL 805 498 2111 FAX 805 498 3804 WEB http Awww semtech com FEATURES Vin 15V max Low dropout performance 1 3V max Full current rating over line and temperature Fast transient response 2 t
3. E IS FAR FROM FILTER CAPACITORS 2 C2 REQUIRED FOR STABILITY 3 652 MITCHELL ROAD NEWBURY PARK CA 91320 c 0 8 AMP POSITIVE SC1117 P s EIVITEC H VOLTAGE REGULATOR April 13 1998 DEVICE OUTLINE SOT 223 DIMENSIONS NCHES MM o BS rmi E AC Io OO o 94 LIE IET GL KS CONTROLLING DIMENSIONS MILLIMETERS DEVICE OUTLINE TO 263 NSIONS JEDEC TO 263 4 1998 SEMTECH CORP 652 MITCHELL ROAD NEWBURY PARK CA 91320
4. otal output regulation over line load and temperature Adjust pin current max 120pA over temperature Fixed adjustable output voltage Line regulation 0 296 max Load regulation 0 496 max SOT 223 and TO 263 packages ORDERING INFORMATION DEVICE PACKAGE Vou VOLTS SC1117CM X X SC1117CM TO 263 See Note 1 1 30 to 13 5 SC1117CST X X SC1117CST SOT 223 See Note 1 1 30 to 13 5 Notes 1 Where X X denotes voltage options Available voltages are 2 85V 3 3V and 5V Leave blank for adjustable version 1 3 to 13 5V Contact factory for additional voltage options 2 Add suffix TR for tape and reel ABSOLUTE MAXIMUM RATINGS Parameter Maximum Input Voltage 15 Power Dissipation Internally Limited Thermal Resistance 150 60 Operating Junction Temperature Range 0 to 125 65 to 150 Lead Temperature Soldering 10 Sec 652 MITCHELL ROAD NEWBURY PARK CA 91320 260 c 0 8 AMP POSITIVE SC1117 P s EIVITEC H VOLTAGE REGULATOR April 13 1998 ELECTRICAL CHARACTERISTICS Unless otherwise noted Adj V 2 65V to 15V and Adj lo 10mA to 800mA Fixed Vin Vou 1 5 to 15V and Fixed l OMA to 800mA Test Conditions Test Limits Parameter Vin lo Min Typ Max Output Voltage Vo 2V 10mA 0 99IVol Vo 1 01IVI Fixed Voltage Versions Va 1 5V T 0 98IVol Vo 1 02IVol to 12V Reference Voltage 5V 1 238 1
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SEMTECH SC1117 handbook