datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 1 features ? operation voltage from 12v to 90v ? maximum duty cycle up to 100% ? minimum drop out 0.5v ? adjust vout from 1.25v to vin - 2v ? max. iout=0.5a at vout=5v ? max. iout=0.3a at vout=12v or 15v ? max. output power less than 5w ? fixed 150khz switching frequency ? internal optimize hv power mosfet ? high efficiency up to 85% ? excellent line and load regulation ? built in output short protection function ? built in current limit function ? sop8-ep (exposed pad) package applications ? ebike controller power supply ? telecom / networking equipment general description the XL7016 is a 150khz fixed frequency pwm buck (step-down) dc/dc converter, capable of driving a 0.5a load with high efficiency, low ripple and excellent line and load regulation. requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. the pwm control circuit is able to adjust the duty ratio linearly from 0 to 100%. figure1. package type of XL7016
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 2 pin configurations figure2. pin configuration of XL7016 (top view) table 1 pin description pin number pin name description 1 fb feedback pin (fb). through an external resistor divider network, feedback senses the ou tput voltage a nd regulates it. the feedback threshold voltage is 1.25v. 2 vreg supply voltage input pin. a 10 f ceramic decoupling capacitor is required. an exte rnal voltage between 7v and 9v can be applied to this pin to redu ce internal power dissipation. 3 vc internal voltage regulator bypa ss capacity. in typical system application, the vc pin conn ect a 1uf capacitor to vin. 4 vin supply voltage input pin. xl 7016 operates from 12v to 90v dc voltage. bypass vin to gnd with a suitably la rge capacitor to eliminate noise on the input. 5,6 sw power switch output pin (sw). ou tput is the switch node that supplies power to the output. the exposed pad is sw. 7 ognd output ground pin. 8 gnd ground pin. care must be taken in layout. this pin should be placed outside of the schottky diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into XL7016. the exposed pad is sw
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 3 function block figure3. function block diagram of XL7016 typical application circuit figure4. XL7016 typical application circuit
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 4 ordering information order information marking id package type packing type supplied as XL7016 XL7016 sop8-ep 2500 units on tape & reel absolute maximum ratings
note1 parameter symbol value unit vin pin voltage vin -0.3 to 100 v fb pin voltage v fb -0.3 to vin v sw pin voltage v sw -0.3 to vin v power dissipation p d internally limited mw thermal resistance (sop8-ep) (junction to ambient, no heatsink, free air) r ja 60 oc/w maximum junction temperature t j -40 to 150 oc 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) >3000 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.
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 5 XL7016 electrical characteristics t a = 25 ;unless otherwise specified. symbol parameter test co ndition min. typ. max. unit system parameters test circuit figure4 vfb fb voltage vin =20v to 90v iload=0.1a to 0.3a 1.225 1.25 1.275 v ? efficiency vin=24v ,vout=15v iout=0.3a - 93 - % ? efficiency vin=36v ,vout=15v iout=0.3a - 88 - % ? efficiency vin=48v ,vout=15v iout=0.3a - 85 - % ? efficiency vin=60v ,vout=15v iout=0.3a - 80 - % electrical characteristics (dc parameters) vin = 48v, gnd=0v, vin & gnd parallel connect a 33uf/100v capacitor; iout=0.2a, t a = 25 ; the others floating unless otherwise specified. parameters symbol test condition min. typ. max. unit input operation voltage vin 12 90 v vin uvlo vin_uvlo 10 11 v vreg voltage vreg 8 v quiescent supply current i q v fb =2v 3 5 ma oscillator frequency fosc 120 150 180 khz switch current limit i l v fb =0, r3=0.33 $ 0.6 a output power pmos rdson vin=48v, i sw =0.3a 180 210 mohm max. duty cycle d max v fb =0v 100 %
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 6 typical system application (vout=15v,iout=0~0.3a) figure5. XL7016 system application (v in=16v~90v, vout=15v, iout=0~0.3a) 0.10 0.15 0.20 0.25 0.30 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 efficiency vs output current efficiency(%) output current(a) vin=16v,vout=15v,iout=0.1a~0.3a vin=24v,vout=15v,iout=0.1a~0.3a vin=36v,vout=15v,iout=0.1a~0.3a vin=48v,vout=15v,iout=0.1a~0.3a vin=60v,vout=15v,iout=0.1a~0.3a vin=72v,vout=15v,iout=0.1a~0.3a vin=84v,vout=15v,iout=0.1a~0.3a figure6. XL7016 system application (efficiency vs output current)
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 7 typical system application (vout=5v,iout=0~0.5a) figure7. XL7016 system application (v in=12v~90v, vout=5v, iout=0~0.5a) 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 efficiency vs output current efficiency(%) output current(a) vin=12v,vout=5v,iout=0.1a~0.5a vin=24v,vout=5v,iout=0.1a~0.5a vin=36v,vout=5v,iout=0.1a~0.5a vin=48v,vout=5v,iout=0.1a~0.5a vin=60v,vout=5v,iout=0.1a~0.5a vin=72v,vout=5v,iout=0.1a~0.5a vin=84v,vout=5v,iout=0.1a~0.5a figure8. XL7016 system application (efficiency vs output current)
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 8 package information package information (sop8-ep)
datasheet 0.5a 150khz 100v buck dc to dc converter XL7016 rev 1.0 www.xlsemi.com 9 important notice xlsemi reserve the right to make modifications , enhancements, improvements, corrections or other changes without notice at any time. xlsemi does not assume any liability arising out of the application or use of any product describe d herein; neither does it convey any license under its patent rights, nor the rights of others. xlsemi assumes no liability for applications assistance or the design of buyers? products. buyers are responsible for their pr oducts and applications using xlsemi components. to minimize the ri sks associated with buyers? products and applications, buyers should provide adequate design and operating safeguards. xlsemi warrants performance of its products to the speci fications applicable at the time of sale, in accordance with the warranty in xlsemi?s term s and conditions of sale of semiconductor products. testing and other quality control tec hniques are used to the extent xlsemi deems necessary to support this warranty. except where mandated by applicable law, testing of all parameters of each component is not necessarily performed. for the latest product information, go to www.xlsemi.com.
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