【应用】A6303A系列LDO、A7501系列DC/DC升压转换器助力无线鼠标应用
目前的市场上的无线鼠标正成为笔记本电脑和台式计算机用户所不可或缺的配件。无线缆直接连接到主机的鼠标,采用无线技术与计算机通信,从而省却电线的束缚。在进行无线鼠标设计时,必须维持高性能系统,同时须将功耗保持在最佳级别以便延长电池寿命。当今火爆的鼠标潮流推动了对小型集成电路解决方案的需求。
创瑞科技(AIT),致力于设计和行销高性能的类比与混合信号IC,为全球消费类电子产品市场提供音频放大及电源管理等解决方案,其推出的无线鼠标系统电路图如图1所示,包括鼠标部分和USB部分。在本方案中鼠标部分需要 DC/DC 升压转换器提供数倍于输入的输出电压(将0.9V~1.6V升压到2.8V),以满足2.5G射频接收器、鼠标传感器、MCU、滚轮、LED、输入键的电路和功能的需要;在USB部分需要一款CMOS低压差稳压器(LDO)为2.5G射频发射器提供3.3V工作电压。
图1 无线鼠标系统电路图
无线鼠标需通过电池供电,而有线鼠标可通过电脑供电,所以无线鼠标的电池耗电量的大小能影响到用户的使用成本。从效率、功耗、所占空间等方面考虑,本文推荐创瑞科技(AiT)的DC/DC 升压转换器——A7501和CMOS低压差稳压器(LDO)——A6303A,为无线鼠标提供解决方案。
A7501系列DC/DC升压转换器,采用 CMOS 工艺制造,由基准电压单元、振荡器和比较器组成,具有较低的纹波,效率高和输出电流高等特点,还提供固定占空比为75%(低输出电压状态)或88%(高输出电压状态)两种状态,用户可根据需要选择。此外,A7501采用SOT-89-3和SOT-23两种封装方式,有效地节省了产品的PCB面积。值得一提的是,其输出电压可设置在2.5V至5.5V之间,精度为2%,相对竞品来说性价比非常高。
图2 A7501电路图
A6303A 系列CMOS低压差稳压器(LDO)专为便携式RF和无线应用而设计,针对电池供电系统进行了优化,可提供300mA超低静态电流且噪声极低。同时,A6303A采用SOT-23、SOT-25和SC70-5三种封装方式,满足苛刻的空间要求,这在手持无线设备中至关重要。此外,A6303A(SOT-25和SC70-5两种封装时)在关断模式下功耗低于0.01μA,快速启动时间小于50μs,实现超快速响应。
图3 A6303A电路图
综上,创瑞科技(AiT)的A6303A系列 CMOS低压差稳压器(LDO)、A7501系列DC/DC升压转换器具有小尺寸、高效率、低功耗等优异性能,为无线鼠标提供解决方案。世强作为创瑞科技(AiT)的代理商可提供充足的货源。欢迎咨询选购。
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A Fabless IC Design Company for Analog & Mixed Signal Circuits
型号- TWSS,TWSR,TMBTA94,TMBZ5229B,AM6354A,F0805L010,KOL7050,TMBTA92,TESD6A6V8W6,TSODJ28CA-SH,TMBR340F,TESD5L3.3C,AM4102,TMBZ5228B,TWSF,TMBT6520,TRB751V-40,F0805L020,TM3Z9V1,TSODJ12CA-SH,TESD5L3.3,TWSI,TSOD4005-SH,F1210L200SL,TMSZ5238B,TMBT6517,F1206L400SL,TDTC114YE,TMSZ5239B,TMBTA55L,F0805L260SLTH,TMBR120F,TM5Z22V,KSS7050,TMBT4403W,AM7246A,F0805L050-9,TMSZ5237B,T2SD1781KR,F0603L,TMBTA56L,TESD9D3.3C,SM220B-3200B,F2920L200,KF868.35,TESD5Z5.0C,F1210L005,TBC807-40L,KOG3225,AM6310,KVL7050,TBZX84C7V5,F0805L050,TUDZS20B,TM5Z24V,MBTXXX,TBC807-40W,TMBT4401L,KRT7050,RB520G-30,TMBT4401W,2SAXXXM3,F1812L020-60,KF8042,TMBT4403L,TMBTA42,MBTHXXX,TSODJ7.5CA-SH,AP8370,TBZT52C2V4,TBZT52C2V7,KTC7050,TBC848CPDW,AP8368,F1210L020,AP8366,TBC847BDW,KF8037,A4810,RB520CS-30,A4812,A4813,AM8958,F2920L300-15,F0805L035,T2SC1623SW,A4808,A4809,KF8021,TBAT54TW,KF8022,WSA,KF8023,A4804,F1210L010,KF8024,A4805,WSC,A4806,TSODJ5.0A-SH,TDTC114TE,KF8028,WSF,WSI,TBZX84B4V7,WSM,WSS,WSR,F2920L300-24,MDL301,KSM1610,F2920L250,KF8010,TSODJ45A-SH,TSODJ30CA-SH,MBTXXXM,KF8011,MBTXXXL,KF8012,ESD5V0S1,KF8013,AO324A,TBA277,AM2309,MBTXXXW,KF8017,AM2308,AM2307,AM2306,MBTXXXT,AM2305,AM2304,AM2303,AM2302,TBZT52B3V3,TBC847BL,AM2301,KR915,AM2300,TBZT52B3V0,TBZT52B3V6,TMBZ5221B,TBC847BT,TDTC115EE,FM401-407,TBZT52B3V9,TSTZ5.6N,TBC847BW,F1210L035,TBAS21C,F2920L260,KF8002,KF8007,TBAT54L,KF8008,KF8009,TBAS21H,TESD8H5.0C,AM4501,TBAT54H,TBC847CL,A24C256,TBAT54W,TRB501V-40,TBC847CW,MBD2836,F1206L600SL,AM4953,AM0830H,MBD2838,TBAS20H,TBSS84DW,F0805L075,F1210L400SL,F1210L050,AM2319,AM2318,AM2317,AM2313,AM2312,TBC847AL,AM2311,AM2310,TDTA114EE,KF7139,TBAV70L,F1206L025-24,2SAXXX,TBAV70W,TBC847AW,TBAV70T,TBZX84C3V3,TBZX84C3V0,MBTHXXXL,TBC817-25L,TSODJ36A-SH,TBZX84C3V9,TMBR0520E,BAV99L,TMBR0520F,TBZX84C3V6,TMBZ5225B,AM1013,AM1012,TBC817-25W,A6141,AM2342,KF7128,KF7126,F1210L075,A317,TM3Z18V,TBZT52C6V2,TBZT52C6V8,BAV99W,TUDZS8.2B,F1206L150SL,TSODJ58A-SH,BAT54XW,TMBZ5227B,BAT54XL,MBD7000L,MBTAXXX,TMBZ5226B,2SCXXXM3,A6151,TM3Z16V,A6150,TMBT5551L,A24C2048,AM2N7002DW,TBZX84C39,A7425,A7431,TBZX84C43,TBZX84C47,TM3Z27V,TBZT52B7V5,KF4053,TSODJ26CA-SH,SM320C-5200C,TGSOT12C,QCC4A,TSODJ7.0CA-SH,BZX84CXXX,TMBT3904T,TBAV3004,TBZX84C51,TMBT3904L,TSODJ20A-SH,TSD12,TESD5Z12,TBZX84C18,TESD8LL5.0C,F1206L050-24,TBZX84C16,KVP7050,A6115,TBZX84C22,ESD7DXXX,TBZX84C20,TBZX84C24,A6120,KF4033,F1206L200,KOP7050,TUDZS18B,TBZX84C27,TBZX84C33,A7442,TBZX84C30,TBAT46,TBZX84C36,A6110,F0805L125SL,TMBR1100F,TM3Z24V,TESD9D5.0,BAV3004,TMSZ5240B,A6318A,TMUN5335DW,BC8XXXW,MBD3004X,X8050XL,A6540,2SDXXX,KF4014,T9012P,T9012Q,BC8XXXL,KF4012,T9012R,HFMA2X0,KF4010,TSODJ18A-SH,AO321A,TSOD4001-SH,TMBT5551DW,AM0765AH,TSD05,TBZX84C11,TBZX84C10,T9013P,TBZX84C15,T9013Q,T9013R,TBZX84C13,T9013S,TBZX84C12,TM3Z22V,QCC12,TMUN5313DW,TBC846BL,TM5Z9V1,T9014Q,T9014R,T9014S,TMBZ5231B,TBC846BW,TDTC114EE,TUDZS4.7B,MBD301,TSM530AF,F0603L075SL,AM4920,TM3Z20V,T9015Q,T9015R,T9015S,TMBZ5230B,TESD5Z3.3,RB551V-30,T1SS360T,TMBTA14,TMBTA13,TMUN5113,TMUN5114,KVDH,MBR120XSF,KVDF,TMSZ5244B,TMUN5111,TUDZS12B,TMUN5112,KMA,AM1465H,ZTTCC,KMB,KMF,ZTTCE,AO2722,BAV170,TMSZ5243B,F1210L350SL,KMU,TSODJ7.0A-SH,KMT,KVCM,TM3Z5V1,F0402L035SL,M1MA142WX,TM3Z5V6,TMBR260F,TUDZS11B,A6516,T2SA1774R,T2SA1774Q,TMSZ5242B,TBZX84C8V2,MBTHXXW,ZTTCS,ZTTCR,ZTTCW,ZTTCV,TUDZS4.3B,KOC,TUDZS10B,TMUN5132,TESD8D5.0C,TESD5D5.0C,KOG,TMBR3100F,TMSZ5241B,TESD9D12,TESD8D3.3,KOH,TDAN202U,A6505,KOM,F1206L200SL,KOL,AP8275,A6501,TDAN202K,A6500,KOP,ESD9DXXX,HFM101-108,TMUN5141,TDTC123JE,TEFMAF103,TEFMAF102,TEFMAF101,A4757,TMBT3906W,TMSZ5248B,TEFMAF104,A7330A,ESDXXXM,DTDXXX,TDTA144EE,TUDZS16B,TMBR130E,TMBR130F,QCC8C,TMSZ5247B,TBZX84B9V1,T2SB1197KR,T2SB1197KQ,TM3Z62V,F0805L075SL,F0805L100,TUDZS15B,TBAW56L,TMBT3904W,A4778,TMSZ5246B,A7805,A7801,A4776,A4781,A4782,TM5Z5V6,A4783,ESDAXXXL,TBAW56W,TBZX84C68,TM5Z5V1,F1812L300,TBZX84C62,KSG,BAV199,AM6260,KSM,A7115B,KSS,TMSZ5245B,A4771,TBZX84C75,A4772,TMBT3906T,KTD,TESD5Z7.0,KTC,KMC7015,TUDZS13B,TMBT3906L,KF9064,F1812L,KF9066,KF9067,MB10S,KF9068,KTM,KF9069,A7431A,KVLM,KOC5032,TMBT5401DW,TBC847CDW,KF9061,KF9062,KF9053,KF9055,TMBR330F,KF9057,ESDAXXXW5,A8079,ESDAXXXW6,KVC,TRB550V-30,TBC846BPDW,KF9050,TM5Z33V,KVL,MMSD4148,KF9043,TBZX84C4V3,KF9044,TBAS16L,KVP,TFMAF401,TBAS16H,TFMAF402,KF9049,TFMAF403,TSODJ40A-SH,TFMAF404,TFMAF405,TFMAF406,TFMAF407,T2SC4081S,TBZX84C4V7,T2SC4081Q,T2SC4081R,2SCXXXL,TBAS16W,8X50XX,RB520S-30,TDTB123Y,KF9031,KF9032,2SCXXXW,KF9036,A25Q32,SMCJXXXA,KR303.825,TESD6V8,TCMH,TCMS,A24C512,TMBTA44L,RB520S-40,TCMW,KF9030,F0603L100SL,F0603L016,KF9022,TPIQ,KOG2016,KF9024,AP8024,KF9025,TPIO,KF9026,KF9027,TBAS16BS,TMBT2222AL,KF9028,KF9029,AP8022,F0603L010,KVPM,KF0203,TBZT52B36,F0603L012,AM3406A,TMBT2222AT,TPIU,TM5Z2V7,TESD7D5.0,T1SS356,T1SS355,TM5Z2V4,TESD8LL5.0,TSODJ8.0A-SH,H8X50X,TBZX84B5V1,AP8012,KF9013,TBC848BDW,F1210L110,KF9016,AM4264,F0603L020,TBZX84B5V6,AM0465H,A1117A,F0603L025,TPIB,TPIA,F1812L300SL,A25D80,F2920L100,F1812L160-16,AP8001,AP8002,F1812L160-12,KF9003,TBC850CL,KF9006,TBZT52B18,KF9008,TBZT52B15,TBZT52B16,TBSS5240L,UMA1XX,TBZT52B2V4,TBZT52B22,
LDO Application
型号- A6618,A6318B,A6318A,A6528A,A6301,A6151A,A6345,A6141,A6140,A6301B,A6301A,A6345A,A6115A,A6523A,A1118,A78L05,A1117A,A6110C,A6110D,A6531,A6300A,A6110A,A6110B,A6304A,A6518A,A6318,A6516,A7805,A6518,A6115,A6250C,A6250A,A6120,A6303D,A6303C,A6040,A6303A,A6501A,A6323F,A6303F,A6303E,A6307,A6306,A6303,A6501,A6500,A6700,A6304,A6151,A6230,A6201A,A6150,A6500A,A6500B,A6310B,A6310A
AIT CMOS LDO稳压器选型表
AIT提供CMOS LDO稳压器的参数选型,VIN (V):-0.3V~45V;Iq(uA) :0.8uA~100uA;PSRR:-83dB @1kHz~83db@1kHz;多种封装:SOT-25,SC70-5,SOT89-3,TO-252,DFN4(1x1),SOP8等。
产品型号
|
品类
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VIN (V)
|
VOUT (V)
|
Iq (uA)
|
Accuracy (%)
|
Output Ports
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PSRR(dB)
|
Enable Pin
|
VDROPOUT (mV)
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Output Current(mA、A)
|
Package Type
|
A6150E5R-25A
|
CMOS LDO稳压器
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1.8~8.0
|
1.2~5.0
|
25
|
±2
|
1
|
65dB@1kHz
|
Enable Pin
|
200mV@100mA
|
150mA
|
SOT-25
|
选型表 - AIT 立即选型
A6201A CMOS LOW DROPOUT REGULATOR (LDO) 250mA LOW CONSUMPTION LINEAR REGULATOR
型号- A6201AK3VR-XXZ,A6201AK3R-XXZ,A6201AE3VR-XXZ,A6201A,A6201AE3R-XXZ
A6303C CMOS LOW DROPOUT REGULATOR (LDO) 300mA ULTRA-LOW NOISE, ULTRA-FAST RESPONSE
型号- A6303CJ4R-XX,A6303CE3R-XX,A6303CE5R-XX,A6303C,A6303C SERIES,A6303CC5VR-XX,A6303CE3VR-XX,A6303CJ4VR-XX,A6303CE5VR-XX,A6303CC5R-XX
AiT SEMi推出700mA低损耗型线性稳压器A6700,适用于光盘、硬盘、摄录机及手提视听设备
AiT SEMi创瑞科技A6700 是一款高精准度、低噪声、CMOS制程的正电压LDO稳压器。A6700低损耗型线性稳压器实现了高纹波抑制和低压差,并由一个标准电压源、误差校正、电流限幅器和相位补偿电路加驱动器晶体管组成,同时与低ESR陶瓷电容器兼容,可提高输出稳定性。
产品 发布时间 : 2024-08-29
AIT升压转换器选型表
以下表格提供AIT升压转换器选型,包含VIN(V) Min、VIN(V) Max、VOUT (V)、Modulation、Current Limit、Iq (uA)、Efficiency (%)、Frequency (kHz)、Package Type九大选型参数可供选择。
产品型号
|
品类
|
VIN(V) Min
|
VIN(V) Max
|
VOUT (V)
|
Modulation
|
Current Limit
|
Iq (uA)
|
Efficiency (%)
|
Frequency (kHz)
|
Package Type
|
A7501
|
升压转换器
|
0.9
|
6.5
|
1.8~5.0
|
VFM Async
|
1A
|
6.5
|
88
|
300
|
SOT-23,SOT-25,SOT89-3
|
选型表 - AIT 立即选型
WL2815 Low power consumption,CMOS LDO
型号- WL2815D15-4/TR,WL2815D18-4/TR,WL2815,WL2815D30-4/TR,WL2815D11-4/TR,WL2815D20-4/TR,WL2815D28-4/TR,WL2815D25-4/TR,WL2815D12-4/TR,WL2815D33-4/TR
A6500F CMOS LOW DROPOUT REGULATOR (LDO) 6V, 500mA, 0.5uA IQ HIGH PSRR LOW DROPOUT LINEAR REGULATOR
型号- A6500FE3VR-XX,A6500FK3R-XX,A6500FE5VR-XX,A6500F,A6500FE5R-XX,A6500FK3VR-XX,A6500FJ4R-XX,A6500FJ4VR-XX,A6500FE3R-XX
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服务
可定制电感最大电流100A,尺寸最小7 x 7 x 3.0mm到最大35 x 34 x 15.5 mm,工作频率100KHZ ~ 2MHZ,感值范围:0.15 ~ 100uh;支持大功率电感,扁平线电感,大电流电感,高频电感,汽车电感器,车规电感,一体成型电感等定制。
最小起订量: 5000 提交需求>
可定制变压器电压最高4.5KV,高频30MHz;支持平面变压器、平板变压器、OBC变压器、DCDC变压器、PLC信号变压器、3D电源、电流变压器、反激变压器、直流直流变压器、车载充电器变压器、门极驱动变压器等产品定制。
最小起订量: 100000 提交需求>
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