升压电源关断时对输出电压的影响及对策
通过关断降压型DC-DC转换器停止其开关工作,使输出电压变为零,停止向负载电路供电,此时电源消耗的唯一功耗是电源电路关断时的自耗电流。然而,对于升压型DC-DC转换器而言,大多数情况下,即使因停止开关而停止升压工作,电源电压VIN在输出时也不会被升压。受流入与输出端连接的电路的电流影响,可能会流过比电源电路关断时的自耗电流更多的电流,这可能会导致计算待机消耗电流时出现问题。
在本文中,我们将分“二极管整流升压型DC-DC转换器”、“同步整流升压型DC-DC转换器”、“流经电压设置电阻的电流造成的待机电流消耗”和“带背栅控制功能的同步整流方式”几部分,来介绍升压电源关断时对输出电压的影响及对策。
二极管整流升压型DC-DC转换器
在二极管整流方式中,由于存在从VIN经过电感器和整流二极管的路径,因此即使开关工作因关断而停止,VOUT也会输出(VIN-VF)的电压。由于电压仍然施加在负载电路上,在某些VIN电压条件下,负载电路会消耗电流,待机消耗电流会增加。另外,向负载电路施加半途而废的低电压可能会导致误动作,某些情况下需要配备输出截止电路。
同步整流升压型DC-DC转换器
在同步整流的情况下,高边开关使用的是FET,在关断时,高边开关会因为没有栅极驱动而处于OFF状态。然而,FET的寄生二极管会形成电流路径,因此VOUT还是会输出(VIN-VF)的电压。
流经电压设置电阻的电流造成的待机电流消耗
电源有连接到VOUT的电阻分压器,用来设置输出电压。在工作时,会有VOUT÷(R1+R2)的电流流过该电阻。当电源关断时,VOUT电压下降,流过电压设置电阻的电流减少,但待机消耗电流会增加。可以通过增加电阻值来减小该电流,但该电阻器需要能够承载误差放大器输入偏置电流100倍以上的电流。如果不能承载这样大的电流,则输出电压VOUT将因温度等因素导致的输入偏置电流波动而发生较大变化,从而影响输出电压误差,因此不能随便增加电阻值。2000年以前的电源IC,很多是双极型产品,输入偏置电流为数十微安(μA)级,因此需要从电压设定电阻上流过数毫安(mA)级的电流。然而,2000年以后的电源IC,CMOS产品已经普及,输入偏置电流已降至纳安(nA)级,流经电压设置电阻的电流也降至数十微安(μA)级。即便如此,如果是移动设备等通过电池供电的应用,微安(μA)级的电流消耗也会影响续航时间,甚至导致问题发生。
为了消除电压设置电阻造成的电流消耗并减少待机消耗电流,一些电源产品会内置可在关断时将电压设置电阻与GND断开的开关。
带背栅控制功能的同步整流方式
在IC中内置有高边开关FET的同步整流方式电源IC,有些产品具有向FET的背栅施加偏压的电路,可通过控制该电路来消除寄生二极管。这个开关可以切断FET的寄生二极管形成的电流路径,因此在关断时输出电压会变为0V,从而可以防止负载电路发生误动作,并确保电源复位,还能消除电压设置电阻和负载电路导致的电流消耗(使该消耗电流为零)。
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本文由Vicky转载自ROHM官网,原文标题为:升压型DC-DC转换器关断时的工作,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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目录- 公司介绍 碳化硅场效应管/碳化硅肖基特二极管/场效应管 超结场效应管/IGBT单管/可控硅 二极管 静电保护器件/瞬态抑制二极管 三极管/电源IC 运算放大器/达林顿晶体管阵列/整流桥/霍尔传感器 光耦/石英晶体谐振器
型号- BTW69,MB10S,SL25T135FL,BTA26-1000,SL2306,SL2307,MB10F,SL2308,SMCJ440CA,SL2309,SL55X,SL40N60C,SL2310,SL2312,SL3400,SL54X,SL3402,SL3404,SL4614,RS1A,RS1M,SMF5.0CA,SS120F,SL13N50FS,MMBT4401,FMMT591,MMBT4403,SLESDL0603-24,LM317,2N5551,WE07DF-B,MMSZ5259B,SL2016384MXXX,S2MB,SL2301,SL2302,SL53X,SL2305,1SMB5921B,BTB20-600,SL322526MXXX,SL25N10,S2MF,SLESD8D36V,SL252025MXXX,SL201624MXXX,SLESD5Z5.0C,SL201616MXXX,2SK3018W,SL4949,SS52BF,2SB1261,SL10N65F,ZM4727,2SB1132,1SMA4777A,DB307S,SL1609SH,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,SMDJ170A,FMMT491,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,RS2M,SLESD5Z7V0,FMMT489,UMB10F,GBLC03CI,MM5Z2V0,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL12030BT,KBL4005,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,US2AF,SMF58A,SL503224MXXX,SL50T65FL,SL1619SH,SL322527MXXX,SL42744D,SL1619SL,SS210B,LM321,SLESDL0603-16,SL201632MXXX,GBU410,IRLML6401,BCP51,BCP53,BCP52,BCP55,BCP54,BZX84C43,BCP56,SL1619TH,SL2733,SL1619TL,SL52X,TL432,TL431,SS52,NUP2105LT1G,SL201625MXXX,SL49SM3579M20P-20,SL252026MXXX,BTA80-1200,SLESDL0603-05,BCP68,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL18N50F,SL2328A,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,MMDT2222A,US2MF,SL503225MXXX,US2MB,SL252024MXXX,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,RS2AF,SL9013MXXXX,SS320F,US2M,SL73XX,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,SL80N120A,BAS316,2SD965A,S8550,SMBJ5.0C,S6AC,M1,BSS123,SL0601,LM2904,M7,SLPESD15VL1BA,LM2902,GBP3005,SL2309A,SLPESD0402M07,BT137-800,MM1Z39B,SLESD9B5.0ST5G,SLPESD0402M05,SMCJ440A,SMAJ5.0CA,SLPESD0402M03,GBU8005,BTA12-600,SLPESD2CAN,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL17010BT,SL322530MXXX,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,S5AB,2SD1624,SL6206-XXMR,SMCJ5.0CA,S1M,B772,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,DB101S,SL322524MXXX,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,RS5MB,BC857B,SLESD5Z15V,SL6508B,SL4264-2,ZMM200,MMDT2227,SL1625SL,SM08C,SL252030MXXX,SL20N10,GBU4005,SD03C,SD15C,SL1625SH,BC856B,BTA10-800,SL1625TL,SL306X,GBP210,BT169D,SL4284,SL4041,SL1625TH,SL1613SH,ABS2,BTA26-800,SS510B,ABS10,1N4001W,SS510C,SL6506B,S3AC,S3AB,KBP4005,2SC1623,2SC2712,SF1001DS,ES1JF,2SD1781,1SS226,BZT52B43,SL1613TL,SL305X,SS52F,SL1002B,BTA41-800,SD05C,SL4275,SL1613TH,SS52B,SS52C,S10MC,SS525,BT138-800,SLESD2401QC,2SD1898,BZT52C2V4S,SL2333A,SL100N03,DSK220,SL40N60CF,D882,ES2JF,GBP310,SL3N06,SL304X,SLM511,SL10P04S,SL49SM24M20P-20,BT139-600,1SS355,SL4N65F,S2AF,SL503212MXXX,SL3401S,1N4148W,S2AB,C1815,BTA04-600,ABS210,MMBT3904,ES2JB,KBP2005,MMBT3906,SL9945,MAC97A8,SL78XX,SL1623SL,ABS201,SL303X,MAC97A6,BAV99,SL17025BT,SLM501,SL2192,SLPESD0201M24,KBP210,BZT52B3V0BS,SL1623SH,RS1AF,BTA41-1200,SLESD5Z12V,MB1F,SL4407A,1SS181,BC848B,78MXX,SM15C,SS510BF,GBP410,SM03C,MB1S,SL-10XX,SL302X,LL4148,SLM611,SLPESD3V3L1BA,SLESD5Z2V5,SMAJ5.0A,MMBTA05,SL1623TH,MMBTA06,SL20T65FH,SL14N120A,SL1623TL,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,MMBT2907,MCR100-8,BCX51,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,BAV20W,BCX56,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,IRF640,SL6800C,SL7N65CN,SD12C,SLESD8D5.0C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,BT139-800,SL7N65CF,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SS8550,SMAJ170CA,US1MF,BAV21W,SL8820,S9018,2N3906,SD36C,MM3Z75,BZT52C43S,BTB10-600,MMBTA55,SLW611,RS1MF,SL3134K,SS110,SS32BF,SL11N65CD,1N4007W,SL11N65CF,SL6512B,SL252012MXXX,SL8052A,SL1629SH,MM1W3V3,SL1629SL,KBP410,SL20162712MXXX,SLPESD5V0L1BA,SS22B,1N4148WS,SL60T65FL,1N4148WT,DSK32,SS22F,MMBTA56,SLW601,SM4007PL,MMBTA44,SL6540BT,MMBTA42,SL49SM6M20P-20,SL252040MXXX,SL36N120A,SL12040BT,SL201626MXXX,SL50N06D,SL1629TH,SL50328MXXX,SL827,BT151,BT152,SL1629TL,SL49SM8M20P-20,SL49SM27M20P-20,SL826,DSK22,SL11N65CQ,SL49SM12M20P-20,SL49SM16M20P-20,S6MC,SL49SM10M20P-20,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,ES1K,2SC4617,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL1605SL,MM1W330,BSS84,BZX84C2V4,DSK12,MM3Z2V0,SL9193MXXXX,BAW56,SL21N65CF,ES1AF,SLPESD0201M03,SL25T120FL,BTA24-800,ULN2003,ES2A,SS12F,6N137,SL15N65CD,6N136,SL15N65CF,LM2575,6N135,LM2576,SMAJ170A,SMDJ170CA,SL851,SL252027MXXX,S5MB,SL1605TL,SL503216MXXX,
ETEK(力芯微)电源IC/信号&传感IC/显示屏&LED驱动/逻辑IC&MOSFET/车规产品选型指南
描述- 力芯微是一家主营电源管理IC的芯片设计公司,总部位于江苏无锡,周边配套了完整的芯片产业链,是国家重要的集成电路产业化基地。力芯微以市场需求和技术前沿趋势为导向,持续研发全系列、高品质的电源管理芯片,并持续布局信号链芯片等其他类别产品。目前,基于在手机、可穿戴设备等应用领域的优势地位,力芯微已经成为消费电子市场主要的电源管理芯片供应商之一,主要客户为三星、小米、LG、海尔等知名厂商。
型号- ET74AUP1G17,ET95152,ET85904,ET3138,ET74AUP1G14,ET3137,ET9919B,ET9611Y,ET1637,ET74LVC1G14,ES6V3DPX,ET74LVC1G17,ET85902,ET8141,ES12DFX,ET85901,ET74HC04,ET74AUP1G07,ET64B16V,ES30P4N3HX,ET1624,ET74AUP1G08,ET74AUP1G02,ET1620,ET74AUP1G04,ET9902,ET516XXYB,ET74AUP1G00,ET9918B,ET64C16YAM,ET8134,ES55DFHX,ES15DFCX,ET74HC573,ET81311,ET20135,ET9580,ET93010A,ET8131,ET8132,ET74HC14,ET20170,ET74AUP2G07,ET6625,ET6623,ET64B16VAM,ET74AUP2G04,ET74AUP1G32,ET74AUP2G02,ES332R2PA,ET74AUP1G34,ET2016B,ET1616,ET5A5ADJZB,ET2016C,ET8123,ET74LVC1G32,ET2016A,ET74LVC1G34,ET74LVC2G02,ET85002,ET82099,ET85001,ET74LVC2G04,ET6622,ET6621,ET74LVC2G07,ET85004,ET7H2XX,ET8121,EM02N08H,ET4557,EM02N08F,ET3712A30XX,ES03DMSBHX,ET2016,ET9612Y,ET74HC238,ET5HAXX,ET9563,ET74LCX244,ET6416Y,ET5014AM,ET633XXYB,ET74LVC2G14,ET74HC595,ET20155,ET74LVC2G17,ET5B0XX,ET5H1XX,ET9562,ET64C16Y,ET5914,ET3856,ET64C16V,ET6326,EMQ40N03T1,ET5H6ADJ,EM02N70M,ET5917,ETQ6H3XX,ETQ8134M,EMR13N03M,ET9523C,ET85304,ET3176,ET85302,ET85301,ES05DMSBX,ET48751,ET48752,ET3172,ET3715A30,ET5904,ET74AUP2G17,ET95101,ETK6201,ET74AUP2G14,ET3720,ET5907,ET6224R,ET74LVC2G34,ET9383Y,ET3167,ET3168,ET2016X,ET3166,ET5223,ETQ5A0XX,ES26P4M,ET3164,ET3161,ET20175,ET20176,ET3713,ET515DXXYB,ET74LVCH8T245,ET1651,ET3159,ET5A0XXYB,ET9818,ET3719,ET9819,ET3716,ETQ6H2XX,ET20176HY,ET9513C,ET8280,ET3157,ET5014L,ES15DUCFM,ET3153,E33DFB,ET3718AXX,ET634XXYB,ET5H7XX,ET1640,ET5H6ADJAM,ET74AUP2G34,ET553XX,ET6408Y,ES79DFVXM,ET358,ET9650M1,EMQ40DN03T1,ET1117,ET5A2ADJZB,ET3895,ET3896,ET93011,ETMC3021,ET8307,ES052R2PL,ES09DFX,ET9631,ET74HC165,ES4850DFHX,ET74HC164,EM08DN12Z,ET9515,ET9640A,ET85502,ET85501,ETM3401,ET8215AM,EM03N06FX,ET85504,E25DFB,ET3712A45BDCLS,ET4857,CD1628,ET5A0ADJ,ES334RTBP,ET20176HAM,ET553ADJ,ES05DUCFM,ET2016XAM,ET74LVC1G126,ET74LVC1G125,ET631XXYB,ET8528,ET5C108,ES24P4N3,E05DFBH,ES05DPX,ET6226,ET1210,ET4712A70,ET5014,ET6312B,ET74AUP1G126,ET74AUP1G125,ET5H5XX,ET1206,ET9555M,ET7429,ET1202,ET551XX,ET6H3XX,ET20176H,ET1629A,ET1629B,ET9381Y,ET7304,ET1629C,ET7303,ET3RL02,ET7302,ES334RTPH,ET2095,ET533XXAM,ET820982,ES3314DUCFBM,ET82097X,ET74HC245,ET542XXY1B,ET6280,ET3148A,ET7H1XX,ET6034AY,ET3712A45BSCLD,ET9792,ET533XX,ET5H2XX,ET7805,ET515XXYB,ET540XXY1B,ES45DPF-BHX,ET3565,ES30P4N3LX,ET531XXYB,ES20DFX,ET8210,ET74HC138,ET7480,ET8215,ET8216,ET9668,ET2110,ET6038,ET6037,ET9639L,ET3562,ET2102,EMR12N03T1,ET2468,EM06N30M,ET2467,ET2104,ET8330A,ES26P4NA,ET5228H,ETQ74LVCH8T245,ET8202,ET8203,ET85601,ET632XXYB,ET3158A,ET85604,ET6144,ET6143,EM03N09FX,ET85602,ET6142,ET557XX,EMR15N03M1,ET6935,ET6934,ET74LVCSZ17,ET7228,ET9528,ET9640,ET7460,ET74LVC1G00,ET9540CL,ET6218R,ET74LVC1G02,ES10DPXM,ET74LVC1G04,ET6930,ET5A3ADJZB,ET536XXYB,ES45D3HP,ET74LVC1G07,ET74LVC1G08,ET7222
ROHM(罗姆)IC/功率元器件/分立式元器件/无源元器件/光学元器件/模块选型指南(中文)
目录- ComfySIL™品牌介绍 IC 功率元器件 分立式元器件 无源元器件 光学元器件 模块 品名索引
型号- BD7673AG,SMLEN3BC8T,DTC014EM,ML7183 [J],BD3473KS2,KA2004-H05N20A,BM2LB300FJ-C,RCJ220N25,BU7295S,SML-S13UT,BU43XXG SERIES,DTC143TEB,KD3001-H0JN11,RSX101VYM30,BH25RB1WGUT,BD7602GUL,KD2004-G0FW00A,BD82001FVJ-LB,BD12IC0MEFJ-LB,BD60A00NUX,RB238NS150,RCX160N20,SML-D12Y8W,SMLA12BN8T,BR25H128,LA-301VL,RBE2VAM20A,LA-301VB,BD70GA5MEFJ-LB,SML-811UT (A),BM61M41RFV-C,SML-010VT,BD9C301FJ,BU1BTD2,DTA124XM,ECO 200,BD15GC0MEFJ-LB,BM2SC123FP2-LBZ,RS3L110AT,RB298T100,DTC143TCA,BD18HC0MEFJ-M,BD46EXX1G-M,RSS060P05,BD71L4LG-1,BR25H160,DTA124XE,BR25A512,BU27030NUC,BD30IC0W,RGPR20BM36HR,BD95821MUV,DTA123JKA,BD6995FV,BH76206HFV,KD2002-G0JB10A,SCT4036KW7HR,BD00GC0MEFJ-M,BD8158FVM,BR24HXXX-5AC系列,SML-S13VT,RD3P175SN,BU97941FV,HS8K11,BD53XXG-2M SERIES,RQ5L015SP,BH7673G,SML-Z14Y4T,BD52XXG-2C,BD47XXG SERIES,BD6046GUL,BU7291S,RGW60TS65HR,KDZLV SERIES,BUS1DJC0GWZ,BD18HC5MEFJ-M,SML-D12Y3W,BM2P0361K-Z,SML-P11YT (R),BM6241FS,BU30TD2,BM92A34MWV,BU30TD3,BD65D00MUV,DTA115EUB,SCM-013RT,1SS355VMTHTE-17,BD63521EFV,BU94702AKV,RBQ10BGE10A,SML-S13PT,RB168MM200,DTC144WCA,BD22621G-M,SLI-343URC,RS6R035BH,RGT20NL65,DTD123TC,RFVS8TG6S,BD6529GUL,DTA015TUB,BM521Q25F,R8003KNX,DTB113ZC,SML-Z14UT (A),BD60HA5MEFJ-LB,DTA023YEB,UCR006,DTA115EU3,BD95514MUV,RB531VM-30,DTB113ZK,BD9S200MUF-C,DTC014EUB,SMLZ24BN3T (C),DTD123TK,RD3S100AA,BD33HA5MEFJ-LB,RFN6T2D,IMX25,RFC02MM2S,SCS215AJ,BA4560R,BA4560Y,SCS215AG,R6000ENH,BR25A1M,BU29TD2,SML-S13RT,BD37210AMUV,BD4271HFP-C,BU29TD3,BU64253GWZ,UFZV SERIES,BR93HXX-2C系列,BU7294S,RV2L009GN,SML-010PT,BD52XXG-2M,RBR2LAM30A,BD30GA3MEFJ-LB,RBR5L30B,RBR5L30A,RSX501LAM20,RX3L07BGN,BU2506FV,RB228T150,ML610Q419C-NNNTBXXXX,RCX300N20,BH76363FV,BU91797MUF-M,ML610Q429,RQ1E075XN,TFZV,RD3L01BAT,BD8229EFV,BD25GA5MEFJ-LB,BD37034FV-M,BD8311NUV,BD63251MUV,ML610Q431,RF4G060AT,BU18SA4WGWL,ML610Q438,ML610Q436,RQ3E100AT,SMF5V0,ML610Q435,BD94121F,ML610Q432,BD3539FVM,BV1LC085EFJ-C,RQ3E100BN,ML610Q419,BU2394KN,SML-A12MT (J),BAXXBC0,KR2002-D06B71A,DTA123JUB,ML86V76580,RD3S100CN,DTC114YEB,RQ5E020SP,SCS215KG,BD63573NUV,DTA015TEB,BA90BC0,RTR020P02,DTA123JU3,RB058LAM-40,ML610Q421,SML813BNT,ML610Q422,BDXXIA系列,BH1730FVC,DAN222WM,BD68888MUV,DTB114GK,BM2P241W-Z,ML610Q407,PML100,BU34DV7NUX,ML610Q408,DTC143TKA,RGTV60TK65D,RSX201L-30,BD42530EFJ-C,SCS220AJ,LBP-602DK2,BD9104FVM,KD3002-G1FW00A,SCS220AG,BD50GC0MEFJ-LB,BD5469GUL,R6511ENX,SMLK18WBNCW,R6511ENJ,ML610Q412,DTA014YUB,RB058LAM-30,CSL0903DT,RX3L07BBG,ML610Q411,SCT4036KE,RUQ050N02,QS8J2,RF305BM6S,BD2812GU,SML-011VT (A),BH1603FVC,RS1E180BN,BD70FC0W,RF201L2S,BD7F100HFN-LB,BD48XXFVE,VS5V0BB1FS,SML012ENT,DTA124EEB,BD8317GWL,BM2P051F,BD60GC0MEFJ-LB,ML610Q400,BD3508MUV,RB238NS100,SML-S13YT,DTB114EC,BD00FC0W,ML7174 [J],SML-010YT,RV2E014AJ,SLI-343M8C,BM2P101EK-LBZ,BD63888AEKV,BD63888MUV,DTB114EK,RGW00TS65HR,SLI-343M8G,RQ5L020SN,BD81870MUF-M,DTC044TUB,BA25JC5T,RB228T100,RB168LAM-30,ML610Q411PA,RFUH25TB3S,BD30IC0MEFJ-LB,BD9B600MUV,BM2P052F,DTD123YC,BM2P159PF,SCT4036KR,SLR-322DU,BD87A29FVM,RF201L4S,DTC024XUB,RQ1A060ZP,SML-P11DT (R),DTA124ECA,DTB114GC,RB168LAM-40,RSS065N06,BM2P053F,DTD123YK,BD33GC0MEFJ-LB,BD9874CP-V5,SML-D13FW,BD49EXXG SERIES,SLR-322DC,2SC2412K,BM63563S-VC,RFNL20TJ6S,RF505BGE6S,BD25IC0W,BM63563S-VA,BDJ2FC0W,LBP-602MA2,ML9092-03,ML9092-02,BA3259HFP,ML9092-04,RH6L040BG,USB 500U,RF01VM2S,BD46EXX5G-M SERIES,RJ1L12BGN,RRR1VWM4STFTR,FMY1A,BM2P054F,BD7691FJ,BD82004FVJ-M,USB 500T,SML-811WT,SML-522MY8W,DAN222ZM,BM2P060MF-Z,BD15HA5MEFJ-LB,RFS60TZ6S,UMZ18NFM,BD48LXXG,DTC114YCA,RBR10BGE30A,RBR40NS60A,BH76809FVM,RRH100P03,SCT3105KL,DTC043ZEB,SCT3105KR,BD18HA5WEFJ,BD9060F-C,RB058LAM-60,RQ6E080AJ,RB168LAM-60,SLI-560DT,BD2051AFJ,BD61250MUV,BD94122F,R6035KNZ4,DTC144EU3,2SA1037AK,BD9470AFM,2SB1590K,RD3T075CN,BD35395FJ-M,RESD1CANY,SP8M41,DTC144EUB,BHXXRB1WGUT,UMH11N,BD2266G-M,DTC023EEB,SLI-570Y2T,BA82904Y,SML-012PT (A),BM6101FV-C,SML-A15YT,SML-S13DT,BD82020FVJ,RBS1LAM40A,BD7690FJ,DTA143XCA,BSM180C12P2E202,ML9092-01,RGTH60TS65D,BDXXIA5,RBQ10NS45A,R6009END3,R6035VNX3,BD99950MUV,RE1J002YN,SP8M31,RFN10T2D,UMH10N,RF101LAM2S,BD88210GUL,BD48EXXG SERIES,BA82903Y,BM61S41RFV-C,2SCR587D3,BD1HC500HFN-C,R6015ENZ,BU7205S,2SAR553P,BV1LC150EFJ-C,SML-011DT,RS3E095BN,ML86V8401,DTC014TM,BH26M0AWHFV,2SAR553R,BD63576NUX,RQ3E130BN,BA82902Y,BU2FSA4WGWL,BD81010MUV,KA2002-B35N00A,BD71L3SHFV,R6042JNZ4,BD15HC5WEFJ,BD90302NUF-C,SH8M24,SML-812MT,BU6652NUX,DTA143XEB,BD82032FVJ,BDXXIC0,BD52W03G-C,BD9862MUV,ML9098B,SP8M51,BD48W00G-C,RGS80TSX2DHR,BH15M0AWHFV,BU30JA2DG-C,SML-D12P8W,LMR982,LMR981,BD37522FS,R6015ENJ,RB088BM150,BA82901Y,RB088LAM100,KDZV,2SAR552P,ML610Q422P,BD26503GUL,R6015ENX,R8002KND3,BUXXSA5WGWZ,2SCR512P5,ML62Q1878,BH3544F,ML62Q1879,QS8K2,BU7465S,SCT3080AW7,RQ6E050AT,BD00IA5WEFJ,RFNL15TJ6S,SCT2450KE,BD30KA5FP,RQ6E050AJ,SML-D12□8□WT86□□□□,VS5V0BB1ES,BA33D15HFP,QS8J4,QS8J5,ML62Q1869,BD68710EFV,DTA043TUB,DTA114TEB,BH30M0AWHFV,RF1001T2D,RBR15BGE30A,LB-402VN,RSJ250P10,BV1LC105FJ-C,RFU02VSM8S,2SAR554P,BD30GC0WEFJ,BM1Z103FJ,BD60203EFV,BD9060HFP-C,BC848BW,UMZ1N,RS1L180GN,YDZV SERIES,BD82044FVJ,BR25G640,BD30HC0MEFJ-LB,2SAR554R,BD00HC5MEFJ-LB,RBR1L30A,RF301
【IC】罗姆电源IC选用攻略!助力打造更高效、更可靠的电源系统
作为全球知名的半导体制造商,罗姆凭借其卓越的产品和技术,在电源管理领域扮演着举足轻重的角色。本文将为各位工程师带来罗姆在电源管理领域的技术及产品介绍。罗姆的电源管理IC包含线性调节器、开关调节器、电源管理开关IC及系统电源等多个种类。
产品 发布时间 : 2024-10-30
虹茂半导体(HONGMAO SEMICON)IC产品参数选型指南(中文)
目录- 公司简介 LDO IC 充电IC 电子烟咪头IC 保护/监测IC 升/降/反压IC RS232接口IC DC-DC降压型LED驱动IC LED日光灯/球泡灯/台灯驱动IC 非隔离降压稳压IC(小家电电源IC) 运放IC 比较器IC 逻辑电路IC 模拟开关IC 实时时钟日历IC 驱动IC 全极性/单极性低功耗霍尔IC 三端稳压IC 通用DC-DC变换IC 控制IC 电压基准源IC 同步整流IC 达林顿驱动IC
型号- HM8805-ADJ,HM29151,HM4115A,HM29152,HM61CXX2,HM5054B,HM4115B,HM809,HM54XXBM5,HM74HC595T,HM5430D4,HM74HC245D,HM8100,HM8101,DW01A,HM2675HV,HM8008DR,HM4115ES,HM5068,HM4115MR,HM5501,HM9708A,LMV358,TL494,HM78XX,HM4056HA,HM74HC245T,HM7805,HM4051AD2,HM4057E,HM2101K,HM4057H,JRC4558,LM2596HV,HM1509B,HM1509E,HM6033,HM6032,HM6030,HM74HC164,HM5056RD,HM5501DR,HM5056RD8,HM8008MR,HM3157,HM2101,HM61NXX2,JRC4560,HM56XXB,HM5056RE,HM2741,HM2740,LM393,HM116A,HM73XXH,HM73XXN,HM5055DR,HM5501MR,HM3140E,HM74HC138D,HM8005DR,HM4310,HM73XX,HM4275,HM4313,HM6216,HM6214,HM4057D6,HM4057D8,HM4051A,LM258,ULN2003A,HM7660,LMV393,MC34063,HM56XXBM5,HM3141E,HM317,HM4024,HM9715,HM1509HV,ULN2803A,HM6206,HM432,HM1156,HM54XXB,HM431,HM8005MR,HM4051ADR,HM6208,HM4057DR,HM73XXHB,HM1558,HM5460ANZ,HM75XXH,HM78XXM5,HM5415ARA,HM1509,HM62783A,ULN2004A,LMV321,HM5430D,HM8541,HM5056DR,HM8006DR,HM6235,HM4056,HM6234,HM4057,HM4054,HM3122,ULN2804A,HM5415ABA,HM3121,HM3005,HM75XXHB,HM5052MR,AMS1117B,HM117D,LM2596,LM358,LMV331,HM78L05,HM6230,HM5056ES,HM4054K,HM3232,HM5511B,LMV324,HM6226,HM8006MR,HM62784A,HM4054E,HM4070D8,LM2576HV,HM74HC04D,LM321,HM4056A,LM324,HM2675HVT,L9110E,HM2675HVS,L9110,HM8563,HM6382,HM75XX,HM1084,HM9921,HM9922,HM462,HM9923,HM465,HM53XXB,HM2103K,HM4055H,UC3842,HM4070DR,UC3843,HM4070,HM118,LM339,HM116,HM78M05,HM5415ASA,HM5208FM,AMS1117,HM5431,HM9910,HM6245,HM5155,HM5430,HM5831,HM1232,HM1234,DW03,HM232,HM5056D8,JRC4580,HM74HC595D,HM3139,HM1235,HM809系列,HM4056E
ROHM(罗姆)电源管理IC选型指南(英文)
目录- Linear Regulators Switching Regulators System Power Supply ICs Non-isolated type ACDC Controller ICs Isolated and Non-isolated Type ACDC Converter Isolated Type ACDC Converter ICs Gate Drivers Temperature Monitor Power Management Switch Wireless Power Battery Management IC Voltage Detectors (Reset ICs)
型号- BD7673AG,BU90006GWZ,BAJ0CC0FP,BD81026MUV,BA18JC5T,BD52XXFVE SERIES,BD18KA5W,BD1CIC0WHFV,BD1CIC0W,BU43XXG SERIES,BH25RB1WGUT,BD18HA3WEFJ,BD7602GUL,BU27TA2WHFV,BD82001FVJ-LB,BAJ2CC0WT,BD12IC0MEFJ-LB,BD50FA1MG-M,BD9109FVM-LB,BD15HA5WEFJ,BD50HC5MEFJ-C,BA70BC0FP,BD50FD0WHFP,BD70GA5MEFJ-LB,BD50HC5MEFJ-M,BM61M41RFV-C,BD9C301FJ,BU48XXF SERIES,BD15KA5WFP,BU1BTD2,BD30GA5MEFJ-M,BD15GC0MEFJ-LB,BD00GA5MEFJ-LB,BM2SC123FP2-LBZ,BD80C0AWFP2-C,BD50GA3WNUX,BD9P135MUF-C,BD18HC0MEFJ-M,BD46EXX1G-M,BU30TA2WNVX,BD71L4LG-1,BD30IC0W,BD95821MUV,BA50JC5T,BD70HC0WEFJ,BD00GC0MEFJ-M,BD8158FVM,BD49XXFVE SERIES,BA25BC0WFP,BD12IC0WEFJ,BD18HA3MEFJ-LB,BD53XXG-2M SERIES,BU32TD3WG,BM6112FV-C,BD87A34FVM,BM2P26CK-Z,BD30GA3W,BD90FD0W,BD52XXG-2C,BD6046GUL,BD47XXG SERIES,BD82006FVJ-M,BD10KA5WFP,BA03CC0FP,BUS1DJC0GWZ,BD433M5FP-C,BD18HC5MEFJ-M,BD90C0AFPS-LB,BU15JA2VG-C,BM2P0361K-Z,BM2P063EK-LBZ,BU30TD2,BD2066FJ-LB,BU30TD3,BAXXDD0T,BAXXDD0W,BA17805FP,BD8313HFN,BD22621G-M,BD80GA3WNUX,BDJ2FC0WFP,BH31NB1WHFV,BD2201GUL,BD6529GUL,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BD18IA5MEFJ-M,BM2P151S-Z,BD60HA5MEFJ-LB,BH29M0AWHFV,BD95514MUV,BA70BC0,BD70522GUL,BD25KA5WF,BU18JA2DG-C,BD9S200MUF-C,BD33HA5MEFJ-LB,BD3573YFP-M,BD80FD0WHFP,BD9E303EFJ-LB,BD25HA3MEFJ-M,BUXXSD2MG-M,BU29TD2,BD4271HFP-C,BD37210AMUV,BU29TD3,BD45XX1G,BD00HA5MEFJ-M,BD52XXG-2M,BD30GA3MEFJ-LB,BD9701FP,BD25GA5MEFJ-LB,BD8311NUV,BH28RB1WGUT,BU2ATD2WNVX,BU18SA4WGWL,BU32TD2WNVX,BD3539FVM,BD10IC0WHFV,BU12JA2MNVX-C,BAXXBC0,BU48XXFVE SERIES,BH18M0AWHFV,BD33C0AWFP2-C,BD9161FVM,BD18KA5WF,BD9355MWV,BD45EXX2G-M,BA17810FP,BD90C0AWFP-C,BM2P0361-Z,BD82040FVJ,BA90BC0,BD15IC0WEFJ,BD9B100MUV,BA178M07,BA178M06,BA178M09,BA178M08,BM2P241W-Z,BU34DV7NUX,BU1JTD2WNVX,BD42530EFJ-C,BD9104FVM,BD50GC0MEFJ-LB,BDJ6FD0WHFP,BA178M10,BA178M12,BA178M15,BH33RB1WGUT,BA178M10FP,BA178M18,BU46KXX2G SERIES,BD9S000NUX-C,BD90GA3MEFJ-LB,BD70FC0W,BM2P0363F,BD2069FJ-M,BU25TD3,BU25TD2,BD450M5WFP2-C,BD7F100HFN-LB,BD48XXFVE,BA178M20,BD8317GWL,BD9035AEFV-C,BA178M24,BD9P255EFV-C,BM2P051F,BD60GC0MEFJ-LB,BD3508MUV,BU46KXX2G,BD33GC0MEFJ-M,BU10TD2WNVX,BA178M10CP,BD00FC0W,BM2P101EK-LBZ,BDJ2GC0WEFJ,BU30SA4WGWL,BD81870MUF-M,BD42500G-C,BD15FD0W,BA05CC0WT,BA17810CP,BA9743AFV,BA25JC5T,BD9C401EFJ,BU25TA2WNVX,BA33DD0WT,BD30IC0MEFJ-LB,BD22641G-M,BD9B600MUV,BM2P052F,BM2P159PF,BD37A41FVM,BD50HC5WEFJ,BD87A29FVM,BD42540FJ-C,BU2JTD3WG,BD33C0AFP2-C,BM2P053F,BD33GC0MEFJ-LB,BD9874CP-V5,BU46KXX4G,BD49EXXG SERIES,BU21TD2WNVX,BD45EXX5G-M SERIES,BD25IC0W,BDJ2FC0W,BD00C0AWFP2-C,BA3259HFP,BM2P101X-Z,BA08CC0WFP,BD00FA1WEFJ,BD46EXX5G-M SERIES,BM2P054F,BDJ0GA3WNUX,BD7691FJ,BD82004FVJ-M,BD50FC0FP,BM2P060MF-Z,BD15HA5MEFJ-LB,BD50FC0W,BD60FC0WFP,BD48LXXG,BD25GA3W,BA50BC0WFP,BD18HA5WEFJ,BD9060F-C,BA15DD0WT,BA33BC0,BD2051AFJ,BU18TD2BD00HC5WEFJ,BA17809CP,BD6042GUL,BD35395FJ-M,BD80C0A,BD00FC0WFP,BD70GA3WEFJ,BHXXRB1WGUT,BD80FC0WEFJ,BD2266G-M,BM6101FV-C,BD15FD0WHFP,BD80C0AFP-C,BD82020FVJ,BD7690FJ,BD50C0AHFP-C,BDJ0GA3MEFJ-M,BD7684FJ-LB,BAJ0BC0,BA70BC0WT,BA08CC0FP,BDXXIA5,BD50C0AFP-C,BU25TD3WG,BD99950MUV,BM2P0151-Z,BD48EXXG SERIES,BM61S41RFV-C,BU32TA2WHFV,BD95601MUV-LB,BH26M0AWHFV,BD50FC0WEFJ,BU2FSA4WGWL,BM1P067FJ,BD81010MUV,BD9S201NUX-C,BD71L3SHFV,BD90302NUF-C,BD15HC5WEFJ,BD15HA3MEFJ-M,BU6652NUX,BD6528HFV,BD82032FVJ,BDXXIC0,BD00GC0WEFJ,BD9862MUV,BD52W03G-C,BD48W00G-C,BH15M0AWHFV,BU30JA2DG-C,BD91361MUV,BD33GC0WEFJ,BDJ0GA3WEFJ,BUXXSA5WGWZ,BM2P091F,BA33DD0T,BD37A19FVM,BA33DD0W,BD00IA5WEFJ,BD733L2FP-C,BD30KA5FP,BM81100MUW,BDJ2GA3W,BA33D15HFP,BA30BC0,BD2233G,BM2P092F,BD90C0AFP2-C,BU34TD3WG,BH30M0AWHFV,BD50C0AWFP-C,BD45XX1G SERIES,BA00CC0W,BD30GC0WEFJ,BM1Z103FJ,BD9060HFP-C,BD9A302QWZ,BD82044FVJ,BH2JNB1WHFV,BD9G341AEFJ-LB,BD30HC0MEFJ-LB,BM2P093F,BD00HC5MEFJ-LB,BM2P131E-Z,BD2232G,BD47XXG,BAJ0BC0W,BA30JC5T,BD18IC0WEFJ,BAJ0BC0T,BA80BC0T,BU42XXF,BA80BC0W,BU42XXG,BA178M05FP,BD800M5WFPJ-C,BD50GA3W,BD99A41F,BD12KA5WFP,BU28TD2WNVX,BD33IA5WEFJ,BM2P094F,BD49KXXG,BU13TD3,BH30RB1WGUT,BU13TD2,BA15DD0W,BD90C0AWHFP-C,BD6538G-LB,BAXXCC0,BD50HA5WEFJ,BA08CC0,BA15DD0T,BU33UV7NUX,BD733L2FP3-C,BM2P121X-Z,BM2P095F,BU45KXX4G SERIES,BA18BC0FP,BD30IA5MEFJ-LB,BU30JA2VG-C,BD8961NV,BD15HA5MEFJ-M,BD95830MUV,BU45LXX2G,BD45XX2G,BA17805CP,BA17818FP,BD9137MUV,BD70GA5WEFJ,BD48EXXG,BA25BC0,BD18GC0WEFJ,BD30FC0WFP,BD25IA5WEFJ,BD30GA3MEFJ-M,BD4XXM5W,BA00CC0WFP,BD9P205EFV-C,BD9596BMWV,BD8132FV,BD25HA5MEFJ-M,BD9536FV,BD8963EFJ,BD9326EFJ,BU28TD3WG,BD90GC0MEFJ-M,BD4XXM2W,BD50C0AW,BU45LXX4G,BD50GA3MEFJ-M,BD9B300MUV,BD80GC0MEFJ-M,BD15GA5MEFJ-LB,BD45XX5G,BU33SD2MG-M,BA178M18FP,BA25BC0FP,BA17818CP,BA178M05CP,BD18GA5MEFJ-LB,BU49XXG,BU49XXF,BDJ0GA5MEFJ-M,BHXXPB1WHFV,BU29TA2W,BD9227F,BM2P201W-Z,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BD25KA5W,BA50BC0T,BD70GC0MEFJ-LB,BA178M18CP,BH29NB1WHFV,BU21TD3,BD30IC0MEFJ-M,BU21TD2,BU18TD3WG,BU28TA2WNVX,BD82024FVJ,BU33SA4WGWL,BD3551HFN,BD60GC0MEFJ-M,BU27TA2W,BM2P209TF,BD9B304QWZ,BU18JA2VG-C,BU33TD2,BU43XXFVE,BA05CC0FP,BDJ0GC0MEFJ-LB,BD33FD0W,BD9615MUV-LB,BM81028AMWV,BA17809FP,BDJ2GA5MEFJ-LB,BU33JA2DG-C,BM2P151X-Z,BD50FA1FP3,BU90002GWZ,BA30E00WHFP,BU33TD3,BD15GA3WNUX,BA9741FS,BA178M09FP,BD9573MUF-M,BU11TD3WG,BD81870EFV-M,BM1
升压型DC-DC转换器中高频噪声的产生原因
本文介绍“升压型DC-DC转换器中高频噪声的产生原因”。关于升压电源的输出中产生远高于开关频率的高频噪声的原因,将从“升压型DC-DC转换器的工作”、“输出电容器和布线中的电感分量”、“低边开关的输出容量和振铃”和“低边开关导通时的工作”几个角度进行说明。
设计经验 发布时间 : 2024-04-12
ROHM降压型DC-DC转换器IC选型表
从输入电压和输出电流的矩阵中可以轻松找到与规格要求相契合的电源解决方案。另外从快速响应控制和轻负载时效率改善模式中,能够选择符合要求的产品。
产品型号
|
品类
|
Grade
|
ch
|
Integrated FET / Controller
|
Topology
|
Synchronous / Nonsynchronous
|
Vin1 (Min.)[V]
|
Vin1 (Max.)[V]
|
Vout1 (Min.)[V]
|
Vout1 (Max.)[V]
|
Iout1 (Max.)[A]
|
SW frequency (Max.)[MHz]
|
Light Load mode
|
EN
|
PGOOD
|
Operating Temperature (Min.)[°C]
|
Operating Temperature (Max.)[°C]
|
Package
|
BD9E200FP4-Z
|
降压型DC-DC转换器IC
|
Standard
|
1
|
Integrated FET
|
Buck
|
Synchronous
|
4.5
|
26
|
0.7
|
20.8
|
2
|
0.5
|
Yes
|
Yes
|
No
|
-40
|
85
|
TSOT23-6L
|
选型表 - ROHM 立即选型
电子商城
现货市场
服务
可定制车规级电感的电流范围0.3~17.9A,尺寸最小1x0.55x0.5mm到最大12.5x12.5x6mm,工作频率100KHz~2MHz,感值范围:0.47uH~4.7mH。符合IATF16949和AECQ-200。SPQ为5K。
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提供稳态、瞬态、热传导、对流散热、热辐射、热接触、和液冷等热仿真分析,通过FloTHERM软件帮助工程师在产品设计初期创建虚拟模型,对多种系统设计方案进行评估,识别潜在散热风险。
实验室地址: 深圳 提交需求>
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