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| datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 1 features ? wide 5v to 48v input voltage range ? maximum boost output up to 60v ? positive or negative output voltage programming with a single feedback pin ? current mode control provides excellent transient response ? 1.25v reference adjustable version ? fixed 180khz switching frequency ? maximum 6a switching current ? sw pin built in over voltage protection ? excellent line and load regulation ? en pin ttl shutdown capability ? internal optimize power mosfet ? high efficiency up to 94% ? built in frequency compensation ? built in soft-start function ? built in thermal shutdown function ? built in current limit function ? available in to220-5l & to263-5l package applications ? epc / notebook car adapter ? automotive and industrial boost / buck-boost / inverting converters ? portable electronic equipment general description the XL6012 regulator is a wide input range, current mode, dc/dc converter which is capable of generating either positive or negative output voltages. it can be configured as either a boost, flyback, sepic or inverting converter. the XL6012 built in high voltage n-channel power mosfet and fixed frequency oscillator, current-mode architecture results in stable operation over a wide range of supply and output voltages. the XL6012 regulator is special design for portable electronic equipment applications. figure1. package type of XL6012 free datasheet http:///
datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 2 pin configurations figure2. pin configuration of XL6012 (top view) table 1 pin description pin number pin name description 1 gnd ground pin. 2 en enable pin. drive en pin low to turn off the device, drive it high to turn it on. floating is default high. 3 sw power switch output pin (sw). 4 vin supply voltage input pin. XL6012 operates from a 5v to 48v dc voltage. bypass vin to gnd with a suitably large capacitor to eliminate noise on the input. 5 fb feedback pin (fb). through an external resistor divider network, fb senses the output voltage and regulates it. the feedback threshold voltage is 1.25v. free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 3 function block figure3. function block diagram of XL6012 typical application circuit (por table notebook car adapter) figure4. XL6012 typical application circuit (boost car adapter) free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 4 ordering information part number marking id lead free lead free packing type XL6012te1 XL6012te1 tube package temperature range XL6012se1 XL6012se1 tape & reel xlsemi pb-free products, as designated with ?e1? suffix in the par number, are rohs compliant. absolute maximum ratings note1 parameter symbol value unit input voltage vin -0.3 to 48 v feedback pin voltage v fb -0.3 to vin v en pin voltage v en -0.3 to vin v output switch pin voltage v output -0.3 to 60 v power dissipation p d internally limited mw thermal resistance (to220-5l/to263-5l) (junction to ambient, no heatsink, free air) r ja 30 oc/w operating junction temperature t j -40 to 125 oc storage temperature t stg -65 to 150 oc lead temperature (soldering, 10 sec) t lead 260 oc esd (hbm) 2000 v note1: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those in dicated in the operation is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 5 XL6012 electrical characteristics t a = 25 ;unless otherwise specified. symbol parameter test condition min. typ. max. unit system parameters test circuit figure4 vfb feedback voltage vin = 12v to 16v, vout=18v iload=0.1a to 1a 1.225 1.25 1.275 v efficiency ? vin=12v ,vout=18.5v iout=3a - 94 - % electrical characteristics (dc parameters) vin = 12v, gnd=0v, vin & gnd parallel connect a 220uf/50v capacitor; iout=0.5a, t a = 25 ; the others floating unless otherwise specified. parameters symbol test condition min. typ. max. unit input operation voltage vin 5 48 v shutdown supply current i stby v en =0v 70 100 ua quiescent supply current i q v en =2v, v fb =vin 2.5 5 ma oscillator frequency fosc 144 180 216 khz switch current limit i l v fb =0 6 a en pin threshold v en high (regulator on) low (regulator off) 1.4 0.8 v i h v en =2v (on) 3 10 ua en pin input leakage current i l v en =0v (off) 3 10 ua max. duty cycle d max v fb =0v 90 % free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 6 schottky diode selection table current surface mount through hole vr (the same as system maximum input voltage) 20v 30v 40v 50v 60v 1a ? 1n5817 1n5818 1n5819 ? 1n5820 1n5821 1n5822 ? mbr320 mbr330 mbr340 mbr350 mbr360 ? sk32 sk33 sk34 sk35 sk36 ? 30wq03 30wq04 30wq05 ? 31dq03 31dq04 31dq05 3a ? sr302 sr303 sr304 sr305 sr306 ? 1n5823 1n5824 1n5825 ? sr502 sr503 sr504 sr505 sr506 ? sb520 sb530 sb540 sb550 sb560 5a ? 50wq03 50wq04 50wq05 8a ? sr820 sr830 sr840 sr850 sr860 typical system application for epc/noteb ook car adapter ? boost (output 18.5v/3a) figure5. XL6012 typical system ap plication (boost car adapter) free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 7 typical system application for portable notebook car adapter ? sepic buck-boost topology (input 10v~30v, output 12v/4a) XL6012 $ * / v g 7 % 4 3 - " v i " 7 * / ( / % 7 * / 4 8 & / 0 / 0 ' ' # v d l # p p t u $ p o w f s u f s * o q v u 7 _ 7 0 v u q v u 7 " 7 0 6 5 3 3 3 , $ 0 6 5 v g 7 3 , 7 0 6 5 7 ' # - # v i " $ % $ v g 7 figure6. XL6012 typical system applic ation (sepic buck -boost converter) typical system application for portable notebook car adapter ? sepic buck-boost topology (input 12v~30v, output 18.5v/3a) XL6012 $ * / v g 7 % 4 3 - " v i " 7 * / ( / % 7 * / 4 8 & / 0 / 0 ' ' # v d l # p p t u $ p o w f s u f s * o q v u 7 _ 7 0 v u q v u 7 " 7 0 6 5 3 3 3 , $ 0 6 5 v g 7 3 , 7 0 6 5 7 ' # - # v i " $ % $ v g 7 figure7. XL6012 typical system applic ation (sepic buck -boost converter) free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 8 typical system application for inverting converter ? sepic inverting topology (input 10v~30v, output + -12v/2a) XL6012 $ * / v g 7 % 4 3 - " 7 * / ( / % 7 * / 4 8 & / 0 / 0 ' ' 4 & 1 * $ $ p o w f s u f s * o q v u 7 _ 7 0 v u q v u 7 " 7 0 6 5 3 3 3 , $ 0 6 5 v g 7 3 , 7 0 6 5 7 ' # - # $ % $ v g 7 7 0 6 5 7 % 4 3 $ 0 6 5 v g 7 $ % $ v g 7 - $ figure8. XL6012 typical system applic ation (sepic inve rting converter) free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 9 package information to220-5l free datasheet http:/// datasheet 180khz 60v 6a switching current boost dc/dc converter XL6012 rev 1.0 www.xlsemi.com 10 package information to263-5l free datasheet http:/// |
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