【IC】兰科半导体新推LK4002同步降压型DC-DC转换器,输出效率高达95%,输入耐压高达24V
兰科半导体新推LK4002是一款输入耐压超过24V,在4.5V~18V输入电压条件下正常工作,输出电压范围0.6V~16V的同步降压型DC-DC转换器。
LK4002的内部基准电压为0.6V,工作频率为500KHz,内部集成内阻为130mΩ的上管和70mΩ的下管,无需外部肖特基二极管,可连续输出2A电流。系统最高转换效率可达95%。采用恒定导通时间(COT)模式的控制构架,具有非常快的瞬态响应特性,同时采用片内补偿电路,使得外围应用电路更加简单。同时LK4002具备输入欠压保护,输出过流保护,输出过压保护,输出短路保护,芯片过热保护等功能,具有极高的可靠性。
产品特色
4.5V~18V工作电压范围
输入耐压高达24V
输出电压范围0.6V~16V
2A连续输出电流
高达95%的输出效率
0.6V基准电压
500KHz开关频率
内置软启动
无需外部补偿
±2%输出精度
短路保护(SCP)
欠压保护(UVLO)
过流保护(OCP)
过压保护(OVP)
过热保护(OTP)
2KV ESD(HBM)
SOT23-6L封装形式
产品应用
数字机顶盒
路由器、光猫
显示器、电视机
其他
典型应用电路
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本文由玄子转载自兰科半导体,原文标题为:新品介绍 | 具有极高可靠性的DC-DC——LK4002,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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NJM2902C,NJM2902B,NJU7076B,NJM7056,R3134,R3133,R2045,NJW2368,R1191,R5550,NJW4303,R1190,NJM2842,R3132,NJM2841,R2043,R3130,NJM2846,NJM2845,NJM2847,NJL5901AR-1,NJM5532C,NJM2901C,R5110XXX1A,R5110XXX1B,NJM393C,R5326,NJG1697EM1,R5324,R3150-A,NJU6364系列,R5560,NJU6397系列,NJW2377,NJU1206MER,NJM2855,R2051,NJM2857,NJM2856,NJW1280,NJU7098A,NJM2902CA,R5110XXX2C,R5110XXX2D,NJM390A,NJU211,R3150-B,R2061,R3150-E,NJW2344,NJM2820,R3154,R3150-F,NJM2822,R2062,R3152,NJM2821,NJW4760,RM516,NJM2823,NJM2825,NJM2828,NJG1801AKGC-A,NJM2827,NJM2829,NSNJ9200A,NJM064C,NJM391A,RS5C338A,R5106,NJU3610,R5107,R5108,R5109,R5104,R5105,NJM2151A,R3160,R5101,NJM2831,NL6010,NJM2830,NA2100,NJM2835,NL6011,NJM2837,NJM2836,NL6012,NJM2839,NJL5902R,R1155,NJG1669MD7,R1154,NJW4107,NJU72501,NJW4106,NJW4105,NJM2570A,NJW4104,NJW4100,R1150,NJM2801,NJM2804,NJM2806,NJM2805,R5528,NJM062C,R5524,R5527,R5520,NJW4109,NJG1684ME2,NJW4108,R5523,NJW4118,NJW4116,NJW4113,R1163,R1160,R1161,NJW4111,NJW4110,NJW4351,NJM2815,NJM2816,NJM12877,NJW4162A,NJU7381A,NJG1108HA8,NJM2904CA,R3114,R2025,NJM2819A,R3112,NJG1617K11,R3111,R5538,R2023,R3118,R3117,NJM2904C,R5533,R3116,NJM2904B,NJG1144KA1,R1170,R3200X064A,NJMOP177,R1173,NJM2374A,R2262,NJW1298,NJW4321,R1171,NJW4320,R1172,NJM78M00S,NJM2903C,NJU7382A,NJM084C,RN5T618,R2033,NJG1801BKGC-A,R5542,R5543,R1180,R5540,R5541,NJM2373A,NJG1657MD7,NJW2392,NJM12856,NJU7365,NJU7366,NJU7367,NJU7092A,NJM2879-H,NJU7364,NJM2748A,RP600,MUSES8832,RN5U700,RP602,RP604,RN5T614,RP605,NB7200,NJU7360,R1801,NJU7356,NJU77572,R1800,NJM41001T,RN5RZ,NJU8759A,NJU7093A,NJU6368系列,NJU7116,NJL6402R-2,NJU7118,NJU7119,NJM2505A,NJU6322系列,NJW1200,NJG1740MHH,MUSES8820,RN5VD,NJU7387,NJU72090,R1810,NJU7141,R3200X002X,NJU7384,NJU7385,NJU7386,RC5T519,NJU72097,NJU6311系列,RM590,NJU7380,NJG1730MD7,NJU9555,NJM17431,NJM2769B,NJU77550,NJU7091A,R3200X001X,NJU77552,NJU77551,NJU77554,NJU6377系列,NT1189GDAE3S,NJU9103,RC5T619X,NJU9102,NJU9101,R5117,R5114,NJM2880,R5115,R5116,NJM2882,NJM2881,R5110,NJM2884,R5111,R3121XXXXG,NJM2883,NJM2641,R5112,NJM2886,NJW1230,NJM2885,R5590,NJM2888,NJM2646,NJM2887,NL6002,R3121XXXXA,NT1191GEAE3S,NJM2407,R3121XXXXE,NJM8191,NJM8190,NJU6063,NJU7394,RM517,RV5C348B,NJU6366系列,NJG1812ME4,NJM2893,NJM2173A,NJM2892,NJM2894,NJW1241,NJW1240,NJG1812AMET-A,NJU7392,NJU6062,NJU6061,NJU6222系列,NJU77580,NJU77582,RN5RF,NJU6402B,NJM2860,NJM2862,NJM2861,NJL5909RL-4,RN5RL,NJM2864,NJM2863,RN5RK,NJM2866,NJG1682MD7,NJM2865,NJM2868,NJU7181,NJM2626,NJM2867,NJM2627,NJL5830R,RN5RT,NJL6195R,NJW2307,NJM2749A,NJM2871,NJM2870,NJG1159PHH,NJW2311,NJM2872,R3121-A,NJM2875,NJM2874,NJM2877,NJM2876,R3121-E,NJU6080,NJM2879,NJM2878,R3121-G,NJG1816K75,NJG1143UA2,NJU7640,NJM14570,NJU6311,NC2700M,NJM2288,NJM2287,RP200,NJL5513R,RS5C372A,RP201,RS5C372B,RP202,NJW1143A,NJU7630,NJU7631,NJU7632,NJM2872A,NC2701M,NJU71074,NJM8830,NSVS1231,NJM2299,NJM2059,NJM2058,NJM2872B,NJG1145UA2,NJG1814MD7,NJU8759,NJU71041,NJG1146KG1,NJMOP1772,NJU8758,NJW1142A,NJU71044,NJW4305A,NJM5532,NJM084CA,NJM8801,NJM2871A,NJL6193R-3,NJM2871B,R3120XXXXE,NJU6323,NJU6322,NJU6321,R3120XXXXA,NJU7650,NJG1186PJL-A,NJU6324,NJW1933,NJM2275,NJM2274,NJM2278,NJM1431A,NJL6407R,NJM3414A,NJL6502R-1,NJM14558,NJU7200,NJU7201,NJU7202,NJM2768B,NJU7680,RP402,NJG1151MD7,NC2600,RP400,RP401,NJU7098AF1-C,MUSES72323,NJU3719A,NS1101,NJU7670,NS1102,NJU6324系列,NJU7677,NJM78M00,NJM41005T,NJG1818K75,NJM358C,NJL5510R,NJU7222,NJU7223,NJG1648HB6,NJL6401R-3,NC2702M,NJU6377,NJU6376,NJU7221,NJL5313R,NJM082CA,NJU7211,NJU6363,NJU6360,NJU7691,NJU6367,NC2703M,NJU6366,NJU6365,NJU6364,NJU6369,NJU6368,NJU8789,NJM358CA,NJU77903-Z2,NJU7690,NJU077,R1232,NJM2586A,RN5C752,NJD3015,RN5C750,NJM064CA,NSVS1093,NJW4148,R5111XXX1A,R5111XXX1B,NJW4142,NJW4141,NJW4382,NJW4140,NJW4750T1,NJM45001,NJW4381,R1243,R5601,R5602,R1242,NJU72322,R1245,NJG1186PJL,R5111XXX2D,NJU72315,NJW4615A,NJU72750A,NJM2561B,NJG1800NB2,R1240,NJM2561A,R5111XXX2C,NJW4155,NJW4154,NJW4153,NJM13403,NJM13404,NJU7388B,NJG1739K51,R5617,R5619,R5612,R5613,NJM393CA,R5610,R5611,NJW4119,NJW4128,NJU72751A,NJW4810A,NJM2584A,NJW4122,NJW5211,NJW5210,NJW4120,MUSES72320,NJG1173UX2,NSTS9116A,NJW4152-AB,NJD3004,NJU71091T1,NJD3007,NJG1801K75,NJW4138,NJM2583A,NJW4375,R1260,NJW4133,NJW4132,NJL6195R-W,NJW4372,NSTS9117A,NJU7386A,ND1160,NJU7606,NJM2566A,NJU7600,RN5C713,NJU7601,NJU7602,RN5C711,NJW1871A,RN5C716,NJM062CA,NJW4188,NJW4187,NJU7367A,NJW4186,NJU4051B,NJW4185,NP8700,NJW4184,NJW4183,NJW4182,NJW4181,NJU7367B,R1207,NJW4190,R1208,R1205,R1206,R1200,NJU71031,NJG1127HB6,NJG1156PCD,NJMOP2277,R1203,R1204,NJU71032,R1202,NJU77806,NJG1666MD7,NJW4196,NJW4191,R1218,NJU7620,NJU4053B,NJM2060,R1210,R1211,R1214,R1215,R1212,R1213,NJM2068,NJU3711A,NJM339C,NJW4161,ND1130,NJW4160,NJG1686MHH,NR1700,NJU7610,R1225,NJU72344,NJU72343,NJU6394系列,R1223,NJU72342,R1224,NJU72341,R3150XXXXE,R3150XXXXF,NJW4177,NJU4052B,NJG1117HA8,NJW4175,NJW4172,NJW4171,NJW4170,NJU3712A,R3150XXXXA,R3150XXXXB,NJM41031,NJU7870-Z2,NJM41033,NJM8020,NJU7086,NJM2903CA,NJM41035,R5114XXX2,R5114XXX1,NJU7391A,NJU7089,R5436,R5437,R5438,NJM8021,R5439,R5432,R5433,R5434,R5435,NJG1187KG1,NJW1159,NJM2723,NJM2725
【产品】1.5MHz同步降压型DC-DC转换器TMI3341,输出电流高达1.2A
TMI3341是拓尔微电子推出的一款高效率、1.5MHz同步降压型DC-DC转换器,可提供1.2A输出电流。1.5MHz的开关频率可实现输出电压的低纹波特性,并允许使用小尺寸的外部电感和电容。
兰科半导体DCDC、芯片、电源、二极管选型表
兰科半导体DCDC、芯片、电源、二极管选型表,内容包含DC-DC、RTC时钟芯片、充电管理芯片、电子烟咪头芯片、稳压芯片、编码器芯片、电源LDO、肖基特二极管选型
产品型号
|
品类
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工作电压(V)
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静态电流(uA/mA)
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输出电压(V)
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开关频率(M)
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电流能力(mA)
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LK4002
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DC-DC
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4.5V~18V
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700uA
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0.6V~16V
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0.5M
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2000mA
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选型表 - 兰科半导体 立即选型
兰科半导体DCDC转换器选型表
兰科DCDC转换器选型表参数:内含多种保护功能,工作电压4.7V-30V,电流能力1.2A,开关频率0.5MHz,静态电流1.4mA
产品型号
|
品类
|
工作电压(V)
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输出电压(V)
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电流能力(mA)
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开关频率(M)
|
静态电流(uA)
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开关管内阻HSFET
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功能
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LK1017
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DCDC转换器
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4.7V-30V
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5V/ADJ
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1.2A
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0.5MHz
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1.4mA
|
400
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同步降压
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选型表 - 兰科半导体 立即选型
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笔者设计的一款楼宇室内终端,系统主要包含电源模块、CPU主控、LCD显示、触摸屏、SD卡,通信模块、音频codec、网卡芯片。其中主控板系统、通信模块、SD卡、codec、网卡芯片的工作电压为3.3V,需要采用专门的电源模块为其提供稳定的电流。该室内终端采用Renesas推出的ISL8014AIRZ实现5V到3.3V的转换,可实现最大4A的输出电流,从而满足主控板系统供电。
已兼容路由器型号清单
型号- NJ_N006,NJ_N127,NJ_N005,NJ_N126,NJ_N004,NJ_N125,NJ_N003,NJ_N124,WR740N,NJ_N009,R1C,NJ_N008,R200,NJ_N129,NJ_N007,NJ_N128,C403,TUF-AX3000,NJ_N002,NJ_N123,R6400,NJ_N001,NJ_N122,NJ_N121,NJ_N120,ZXHN F650,RT-AC1200GU,WNDR3800,G-140W-MD,NJ_N017,NJ_N138,NJ_N016,NJ_N137,NJ_N015,R4,TL-WR2041N,NJ_N136,NJ_N014,NJ_N135,MW316R,R2D,NJ_N019,NJ_N018,NJ_N139,NJ_N130,R4CM,F9K1004,F9K1116V1,AC-1700,NJ_N013,NJ_N134,NJ_N012,NJ_N133,NJ_N011,TL-WDR6300,VE608W,WL530G-V2,NJ_N132,NJ_N010,NJ_N131,H2-3,FWR310,360P4,C312B,PH15,NJ_N105,MW313R,MW325R,NJ_N104,RT-AX88U,NJ_N103,RT-AC86U,NJ_N102,NJ_N109,D19G,NW719,NJ_N108,NJ_N107,NJ_N106,R3L,RV110W,NJ_N101,A755W,NJ_N100,TL-WDR7500,R3P,AC1,W150M+,AC6,AC7,R4A,NW710,NJ_N116,R4C,A33,NJ_N115,NJ_N114,NJ_N113,PA3,JYR-N490-3Q,MID01,NJ_N119,NJ_N118,NJ_N117,WNR2000,TC7102,NJ_N112,NJ_N111,R3600,NJ_N110,CS-W1-FE300F,TL-WR842N,R100,TL-WR745N,NJ_N202,NJ_N201,AX12,WS851,XDR3020,WS852,R4300,NJ_N200,蒲公英X5,TL-WR742N,MIR3,B70,RT-AC51U,TL-WDR6500,DIR-816,F6,TL-WR840N,RT-AX56U,MW305R,AX1800,WDR6300,WHW01,G7,R8000,AR101W-S,X2,F1203,FW450R,RT-ACRH17,RAX40,D196G,DL-624+A,N12,TL-WR886N,TL-WDR8690,E8810,YK-L1,R6800,NJ_N086,DIR-846,NJ_N085,CD28V2,NJ_N084,NJ_N083,TL-WDR3320,TL-WDR5620,NJ_N089,PW3,WR-500V,NJ_N088,NJ_N087,RT-AC68U,NJ_N093,NJ_N092,NJ_N091,W311R,NJ_N090,WS5200,X188G,NJ_N097,NJ_N096,NJ_N095,NJ_N094,NJ_N099,DIR-859,WRT54G,NJ_N098,WDR5670,WDR6500,RBR20,NJ_N069,K2,NJ_N064,NJ_N185,NJ_N063,NJ_N184,NJ_N062,NJ_N183,NJ_N061,TL-WDR7340,NJ_N182,R2100,NJ_N068,NJ_N189,NJ_N067,NJ_N188,NJ_N066,NJ_N187,NJ_N065,DS-3WMR11-E,NJ_N186,NJ_N071,NJ_N192,NJ_N070,NJ_N191,R6020,NJ_N190,WS5100,360G4,RM1800,PRO2,NJ_N075,TL-R473,NJ_N196,NJ_N074,NJ_N195,NJ_N073,360V6,NJ_N194,NJ_N072,NJ_N193,D128,NJ_N079,TL-WDR8660,NJ_N078,NJ_N199,NJ_N077,D126,NJ_N198,NJ_N076,W18E,NJ_N197,NJ_N082,NJ_N081,NJ_N080,D191G,DIR-619L,RM2100,DIR-882,NJ_N049,\VS52S0 V2,NJ_N048,NJ_N169,NJ_N047,TL-WA801ND,HS8145C5,NJ_N168,360P4C,WRT1900ACS V2,BL-W1210,NJ_N042,NJ_N163,NJ_N041,NJ_N162,NJ_N040,NJ_N161,RT-AX82U,NJ_N160,NJ_N046,FAC1200R,NJ_N167,NJ_N045,NJ_N166,NJ_N044,360V2,NJ_N165,NJ_N043,NJ_N164,LSA-800R,NJ_N170,WZR-1750DHP,TEWA-700G,NJ_N059,NJ_N058,WR350,NJ_N179,ZN-M2,TL-WDR8400,NJ_N053,NJ_N174,N6,NJ_N052,NJ_N173,NJ_N051,NJ_N172,NJ_N050,NJ_N171,NJ_N057,360T2,NJ_N178,NJ_N056,NJ_N177,NJ_N055,MW300R,NJ_N176,NJ_N054,AC1200,NJ_N060,NJ_N181,NJ_N180,WNDR4300,DIR-823G,FW315R,NJ_N028,NJ_N149,NJ_N027,WR642G+,NJ_N148,NJ_N026,NJ_N147,NJ_N025,NJ_N146,FW150R,WS550,WL_WN529N2A,NJ_N029,R300,NJ_N020,NJ_N141,NJ_N140,TL-WDR7661,TL-WDR7660,MR814V2,NJ_N024,NJ_N145,NJ_N023,NJ_N144,NJ_N022,NJ_N143,NJ_N021,TL-WDR7300,DIR-629,NJ_N142,R6220,A700R,F5 PRO,KWGR614,WS7200,N150RP,AC11,M6G,EA6350,AC10,NJ_N039,NJ_N038,NJ_N159,NJ_N037,P2,NJ_N158,NJ_N036,NJ_N157,NJ_N031,NJ_N152,NJ_N030,NJ_N151,TL-WDR7650,NJ_N150,AX3PRO,NJ_N035,NJ_N156,NJ_N034,DAP-2230,A2004R,NJ_N155,NJ_N033,NJ_N154,NJ_N032,NJ_N153,N150R+,FW325R,FIR302C
【产品】兰科半导体推出的单片集成高耐压达林顿管阵列ULN2001D,集电极输出电流500mA
兰科半导体推出的ULN2001D是单片集成高耐压、大电流达林顿管阵列,电路内部包含三个独立的达林顿管驱动单路。电路内部设计有续流二极管,可用于驱动继电器、步进电机等电感性负载。单个达林顿管集电极可输出500mA电流。
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