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42V 宽输入电压同步降压控制器芯片LM25116MHX

类别:公司动态 发布时间:2017-8-8  阅读:388 发布企业: 深圳市裕硕科技有限公司
摘要:42V 宽输入电压同步降压控制器芯片LM25116MHX

42V 宽输入电压同步降压控制器芯片LM25116MHX备选器件推荐LM25117 - 4.5-42V wider Vin with added tracking feature

描述

The LM25116 is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control using an emulated current ramp. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50 kHz to 1 MHz. The LM25116 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A low quiescent current shutdown disables the controller and consumes less than 10 µA of total input current. Additional features include a high voltage bias regulator, automatic switch-over to external bias for improved efficiency, thermal shutdown, frequency synchronization, cycle-by-cycle current limit and adjustable line undervoltage lockout. The device is available in a power enhanced 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

特性

Emulated Peak Current ModeWide Operating Range (Up to 42 V)Low IQ Shutdown (< 10 µA)Drives Standard or Logic Level MOSFETsRobust 3.5-A Peak Gate DriveFree-Run or Synchronous Operation to 1 MHzOptional Diode Emulation ModeProgrammable Output From 1.215 V to 36 VPrecision 1.5% Voltage ReferenceProgrammable Current LimitProgrammable Soft StartProgrammable Line Undervoltage LockoutAutomatic Switch to External Bias Supply20-Pin HTSSOP Exposed Pad

Thermal Shutdown

TLV320AIC3100IRHBRINA199A1DCKRBQ27421YZFR-G1ATPS62080DSGRLM5025MTCX/NOPBLM5025AMTCX/NOPBTMS320F28027PTTHDC1050DMBRRTL035N03TRBQ24250YFFRBQ27421YZFR-G1AADC088S102CIMTX/NOPBTLV320AIC3100IRHBRHDC1050DMBRINA139NA/3KBQ24250YFFRBQ25895RTWRBQ51020YFPRTMX320F28069PNAXAM3359ZCZOMAP3530ECUSAFE5808AZCFMSP430F4793IPZRMSP430F4793IPZRLM2841XMKX-ADJ/NOPBTS3DV20812RHHRTPS62080DSGRTPS62080DSGRLM25116MHXLM25116MHXLM2594MX-ADJLM2594MX-5.0LM2676SX-5.0TPS65910A3A1RSLRTPS65910A3A1RSLRLM833MX/NOPBLM833MX/NOPBCC2592RGVRLM833MX/NOPBAD8604ARZ-REEL7LM4120AIM5-3.3LM3488MMX/NOPBLM4120AIM5-3.3INA139NA/3KINA139NA/3KLM2940CT-5.0/NOPBTPS61021ADSGRLM2940CT-5.0/NOPBTLV70030DCKRLM2594MX-3.3LM317DCYRLM317DCYRTPS5450QDDARQ1TPS2553DRVRTL082IDRLV16003MHX/NOPBLM2596SX-ADJ/NOPBUCC28C43DRLMH6658MAX/NOPBTLC5946RHBRTUSB1210BRHBTTPS659102A1RSLRTPS65910A1RSLRTPS65910A3A1RSLRTPS65910A3A1RSLRTPS65910A3A1RSLRTPS65910AA1RSLRTPS65910A3A1RSLRTPS659102A1RSLRREF3040AIDBZRREF3025AIDBZRREF3120AIDBZRREF3030AIDBZRREF3025AIDBZRREF3125AIDBZRREF3040AIDBZRREF3030AIDBZRREF3120AIDBZRREF3040AIDBZRTLV809I50DBVROPA2335AIDROPA379AIDBVROPA2335AIDROPA4354AIDROPA2277PAOPA333AIDBVROPA379AIDBVROPA2277UA/2K5OPA1654AIPWROPA2377AIDGKROPA2377AIDGKROPA4354AIDRTMS320F28069PZTTMS320F28065PZTINA213AIDCKRTPS28225DRBRTPS28225DRLM317HVT/NOPBLM317EMPX/NOPBLM317MQDCYRTXS0104EPWRTXS0104EZXURTPS61170DRVRTPS61176RTERLM26480SQ-AA/NOPBTPS56528DDARTXS4555RUTRTHS7373IPWRTHS7316DRTPS60151DRVRCSD87350Q5DCSD87351Q5DCSD87351Q5DCSD87350Q5DOPA379AIDBVROPA333AIDBVRLM4120AIM5-3.3/NOPBLM4120AIM5-3.3/NOPBTLV2470IDBVRLM3478MM/NOPBLM4040D20IDBZRCC2530F256RHATLM34923MM/NOPBTLV431ACDBZRCD3268A0YZPRSN74CB3T3253DRLMC555CMX/NOPBLM27951SDX/NOPBLM27951SDX/NOPBAM26LV32EIPWRAM26LS32ACDRAM26LV32EIDRAM26C32CDRAM26C32CDRISO7241CDWRISO1050DUBRISO7221ADRISO1050DUBRDRV632PWRDRV8833RTYDRV602PWRDRV8412DDWDRV8833RTYDRV632PWRTPS62080DSGRADC108S102CIMTX/NOPBMAX232ECDRMAX232DRLM5025AMTCX/NOPBTLV70030DCKRTLC7528CDWRTLV2470IDBVRTL7712ACDRTL16C752BPTRTLC2262AIDRG4TLC374CDRTLC5946RHBRTLV1117-18CDCYRCD14538BM96LM4040D20IDBZRLM4040AIM3X-2.5/NOPBLM4040B30IDBZRLM4040BIM3-3.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-5.0/NOPBPCA9545APWRPCA9544APWRTPS54521RHLRTPS54531DDARTPS54519RTERTPS54528DDARTPS54531DDARTPS5450DDARTPS54527DDARTPS54531DDARSN75LBC184DRSN75LBC184PTMS320F2812PGFATMS320F28022PTTTMS320F28032PNTTMS320F2801PZA-60TMS320VC5501PGF300TMS320F28069PZTTMS320F2810PBKATMS320F28032PNTTMS320C28346ZFETTMS320F2806PZATMS320F28035PNTTMS320F28034PNTTMS320F2808PZADS34LV87TMX/NOPBTMS320F28022PTTTMS320F2812PGFATMS320DM365ZCE21TMS320F28335PGFATL494CNLP38691DTX-3.3/NOPBLMV324IDRTPS2552DBVRADS62P44IRGCTPS73701DRBRTS3USB221RSERTS3USB221ARSERTL432BQDBZRTPS56628DDARSN74ALS245ANSRSN74ALVC164245DLRSN74ALS573CDWROPA2377AIDGKRSN74ALVC164245DLRSN74ALS245ANSRSN65HVD3082EDRSN65HVD230DRSN65HVD1050DSN65HVD230DRSN65HVD251DRSN65HVD11DRSN65HVD05DRSN65HVD11DRSN65HVD3082EDRTXS0104EZXURSN74ACT08DRSN74CBTD3861DBQRSN75C1168NSRSN75LVDS83BZQLRSN74CBT3257DRSN74AVC1T45YZPRSN74CB3T3253DRSN75LBC184DRSN65LBC182DRSN74LVC16T245DGGRSN74CBTLV3253DRSN65LBC182DSN74LS244NSRSN74LS244DWRSN74AVC4T245DRSN65176BDRTLC2262AIDRG4MAX3232CDRTS5A3159ADCKRTS5A3157DCKRHDC1000YPATTLV274CPWRLM5118MHX/NOPBLM5118MHX/NOPBLM5118MHX/NOPBTPS54620RGYRTPS54620RHLRAM3357BZCZD30TPS71501DCKRTPS71501DCKRCSD17527Q5ACSD25402Q3ACSD17510Q5ACSD17527Q5ACSD86350Q5DCSD17312Q5CSD16401Q5CSD17313Q2CSD16340Q3CSD18531Q5ACSD86350Q5DTPS54160DGQRTPS54160ADGQRTPS5410DRTPS54140DGQTLV2374IDRTAS5707LPHPRTAS5711PHPRTAS5711PHPRTAS5707LPHPRTFP410PAPTPS2065CDBVRTPS2065DBVRTPS2062ADRINA139NA/3KLM5574MTX/NOPBLM3370TL-3006/NOPBLM7301IM5X/NOPBLM7301IM5/NOPBSN74CB3Q3384APWRSN74CBTD3861DBQRSN74CBTLV3253DRREF3025AIDBZRLM3243TMX/NOPBLM3478MM/NOPLM4889MMXDRV8412DDWLP3470IM5-2.63/NOPBBQ24261RGERBQ24190RGERBQ24196RGERBQ24050DSQRBQ24103ARHLRBQ24090DGQRBQ24158YFFRBQ24172RGYRBQ24133RGYRTRS3232EIDRTRS3232EIDBRSN74AVC4T245DRSN74AVC16T245DGGRSN65LBC182DSN65LBC182DLP2996MRX/NOPBLP2997MX/NOPBLP2995MX/NOPBULN2803ADWRTPS62560DRVRSN74LVC16T245DGGRSN74LVTH162244DGGRADS1242IPWTSN74LS14DRSN74LS245NSRSN74LS06DRTPS2421-2DDARINA137UA/2K5XTR116UA/2K5INA137UA/2K5TPS2421-2DDARADC108S102CIMTX/NOPBADC101S021ADC101S021ADS62P44IRGCTLC272CDRLF353DRDRV602PWRTPS63001DRCRTPS63000DRCRTPS54240DGQRTPS54283PWPRTPS54229DDARTPS54240DGQRTPS54260DGQRTPS54231DRTPS54260DRCRTPS54226PWPRTPS54260DRCRBQ26100DRPRBQ2057WTSTRSN75C1168NSRTS3USB30ERSWRAM3352BZCZA100AM3352BZCZ100AM26C31CDRAM26C31QDRAMC1200SDUBRAM3352BZCZ60AM3357BZCZD30AM3352BZCZD80AM3359ZCZD72AM26C31IDRAM26C31QDRAM3352BZCZA100AM3352BZCZ80AM3352ZCZD72AM26LS31CDRAMC1200SDUBRAM3352BZCZ80LM26480SQ-AA/NOPBTPS76733QPWPRTPS76733QPWPRTPS76733QPWPTPS65051RSMRTPS65070RSLRTPS65023RSBRCSD18531Q5AOPA2335AIDROPA4354AIDRISO1050DUBRSN1504026DDCRTPS40057PWPRTPS40007DGQRTPS40007DGQRTPS40057PWPRBQ2057WTSTRBQ2057WTSMAX3221IPWRTMP75AIDRTLC2254AIDRLM22676MRX-5.0/NOPBLM22676MRX-ADJ/NOPBTPS40193DRCRTPS40140RHHRTPS40190DRCRTPS40193DRCRTUSB1210BRHBTXTR105UA/2K5TMS320VC5501PGF300BQ500212ARGZROPA1654AIPWREZ430-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-ADJ/NOPBLM2576SX-5.0/NOPBTPS562200DDCRTPS562209DDCRTPS562209DDCRSN74CB3Q3384APWRTPS54335ADDARTPS54386PWPRTPS54325PWPRTPS54320RHLRTPS54335ADDARTPS54336ADDARTPS54328DDARTPS54331DRTPS54329DDARTPS5432DDARTPS54327DDARTPS5430DDARTPS54336ADDARTPS54320RHLRTPS54336ADDARTPS54335ADDARTPS54312PWPRTPS5432DDARAFE5808ALM2736YMK/NOPBOPA2277PAOPA2277UA/2K5BQ24050DSQRLM3269TLX/NOPBLM4040D20IDBZRTHS4522IPWRTHS7316DRTHS4281DBVRTPS53355DQPRTVP5150AM1PBSRLM317MQDCYRLMC6482AIMX/NOPBTPS62160DSGRTPS62160DGKRAM26C31IDRLM25116MHX/NOPBREF3040AIDBZRBQ24158YFFRXTR116UA/2K5CSD17527Q5ACSD17527Q5ATPS54427DDARTPS54418RTERTPS54426PWPRTPS54425PWPRTPS54428DDARTPS62560DRVRTPS65192RHDRTPS65161APWPRTPS61040DBVRTPS61040DBVRTPS61088RHLRCSD17313Q2CSD17510Q5ABUF08630RGWRBQ24190RGERXTR106UA/2K5XTR106UA/2K5TPS43000PWRTPS43060RTERBQ24090DGQRTLV1117LV18DCYRLM3478MM/NOPBCC2541F256RHARBQ2057WTSBQ26100DRPRBQ24103ARHLRBQ24261RGERDAC108S085CIMTX/NOPBTAS5707LPHPRBQ24296MRGERBQ24296MRGERTPS40200DRLM1117IMPX-ADJLM1117IMPX-5.0LMV358IDRLM7321MFXLMV321M5XLM833MX/NOPBLP2996MXLM27951SD/NOPBLM27951SD/NOPBTLV70030DCKRTLV70033DDCRLM3488MMX/NOPBLM1117IMPX-5.0LM1117IMPX-3.3LM1117IMPX-3.3LM7321MFXCC2592RGVRPIC12F1822T-I/MFLMR14030SDDARBQ32000DRLM1117IMPX-ADJLM1117MPX-3.3LMV774MTXLMV7239M7XLMH6645MFXLMV321M5XTPS55330RTERLMV358IDRLM3488MMX/NOPBLMR14030SDDARTPS562201DDCRLM2841XMKX-ADJLTPS62110RSARTPS62110RSARTPS61021ADSGRLM2743MTCXLM2676SX-ADJLM2940CT-5.0TPS55340RTERLM321MFXLM321MFXTPD1E05U06DPYRTCA6424ARGJRMAX3232CDRMAX3232CDBROPA360AIDCKROPA244NA/3KOPA2349EALMC6482AIMX/NOPBLMC6482AIMXDRV8711DCPRTLV803SDBZRTLV61220DBVRINA193AIDBVRINA193AIDBVROPA2349EAREF3125AIDBZRMSP430G2553IPW28RMSP430G2553IPW20ROPA244NA/3KLMV7219M5XTLV61220DBVRSN65HVD888DRTAS5719PHPRTPS63000DRCRTPS54228DDARTPS54229DDARTPS54227DDARLM5069MM-2/NOPBTAS5719PHPRTPS92023DRUC28025DWRTLV803SDBZRLM5069MM-2/NOPBTPS54302DDCRDRV8824PWPRDRV8824PWPRTPD7S019-15DBQRTPS51216RUKRLM2575HVT-5.0销售热线:0755-23613962 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