【应用】瞬态响应较好的LDO RP111N331B满足智能家居网关设计需求,输出电压精度可高达±0.8%
在智能家居网关设计时,由于Silicon Labs的Si4463需要满足20dBm的发送功率要求,因此需要选用3.3V的电源芯片给Si4463供电,注意该电源芯片的电流需支持到150mA以上,由于无线协议采用跳频方式,所以电源芯片需选用瞬态响应好的产品。另外无线接收灵敏度受电源噪声影响,需选用低电源噪声的芯片。
NISSHINBO日清纺(原理光微电子)的RP111x系列是基于CMOS的LDO,500mA输出电流,输入电压1.4V。由于内置0.46Ω 导通电阻(输出电压2.8V时),RP111x可以提供较低的压差。RP111x还具有优良的线路瞬态响应和低噪声,波纹抑制在75dB。在±30ppm/℃时,输出电压精度高达±0.8%,输出电压的温度漂移系数较低,该系列中RP111N331B满足选型要求。
系统设计框图如图1所示,报警网关含有Sub-1G无线通信芯片Si4463和LTE/Wi-Fi模块。报警网关采用9V电源适配器供电,同时系统需要支持24小时备用电池供电,网关通过Sub-1G无线通信协议接收外挂sensor的报警信息,再通过LTE或者Wi-Fi网络传输到报警中心处理。
图1 报警网关系统简要框图
日清纺 RP111N331B原理图设计如图2所示:
图2 RP111N331B设计原理图
RP111N331B的PCB Layout设计:
VDD和GND需要足够宽,如果VDD和GND阻抗很高,可能会引起噪声或不稳定运行。输入电容尽可能靠近引脚VDD放置;输出电容,输入电容和地之间形成的回路尽可能小,布线尽量短,如图3所示。
图3 RP111N331B PCB layout
经过测试,RP111N331B瞬态响应较好,可以保证Si4463芯片稳定可靠通信,目前该产品也见于欧美家居安防市场。RP111x系列LDO可以提供较低的压差,还具有优良的线路瞬态响应和低噪声。在±30ppm/℃时,输出电压精度高达±0.8%,输出电压的温度漂移系数较低,成本低等优势,值得推荐。
关于Nisshinbo (日清纺)
原新日本无线(NJR)株式会社和原理光微电子(原RICOH)株式会社已于2022年1月合并,并以⽇清纺微电⼦(Nisshinbo)株式会社的名义运营。日清纺(Nisshinbo)整合两家公司的优势,完善 "连接一切 "的技术,并努力作为一个模拟解决方案的供应商进一步成长和发展,为实现超智能社会做出贡献。
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本文由吃饱了才有力气减肥转载自Nisshinbo,原文标题为:RICON RP111N331B在智能家居网关Si4463上的应用,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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产品型号
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品类
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最小输入电压(V)
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最大输入电压(V)
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输出电压精度(%)
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输出电流(mA)
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封装
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3.5V
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36V
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±0.6%
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200mA
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SOT-89-5
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产品型号
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品类
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最小输入电压(V)
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RP103x系列低噪声150mA LDO稳压器
描述- 该资料介绍了RP103x系列低噪声150mA线性稳压器(LDO)的特点和应用。这些IC具有高输出电压精度、极低的供电电流、低导通电阻和高纹波抑制能力。它们适用于手持通信设备的电源供应,并支持固定输出电压范围从1.2V到3.3V。
型号- RP103K131B,RP103K131D,RP103QXX2B,RP103Q312D,RP103X12XD,RP103Q312B,RP103QXX2,RP103QXX2D,RP103Q271B,RP103Q162B,RP103Q271D,RP103Q162D,RP103KXX1X SERIES,RP103N261D,RP103N261B,RP103N281D5,RP103X25XX,RP103K251B,RP103K251D,RP103QXX2XSERIES,RP103X,RP103Q301D,RP103Q301B,RP103QXX1D,RP103QXX1X SERIES,RP103QXX1B,RP103Q151B,RP103Q272B,RP103Q151D,RP103Q272D,RP103N141D,RP103N141B,RP103K141B,RP103K141D,RP103Q322B,RP103Q201B,RP103Q201D,RP103Q322D,RP103Q172B,RP103Q172D,RP103Q281B,RP103Q281D,RP103N251D,RP103N251B,RP103N281B5,RP103K261D,RP103K261B,RP103Q311B,RP103Q202B,RP103Q202D,RP103Q311D,RP103Q161B,RP103Q282B,RP103Q161D,RP103Q282D,RP103KXX1∗-TR,RP103X25XD,RP103N131D,RP103N131B,RP103K,RP103K191B,RP103N281D,RP103X SERIES,RP103QXX2∗-TR-FE,RP103Q332B,RP103N181D5,RP103Q211B,RP103Q211D,RP103Q332D,RP103N201B,RP103X28X∗5-XX,RP103Q291B,RP103Q182B,RP103Q281B5,RP103Q291D,RP103Q182D,RP103Q282D5,RP103N281B,RP103K191D,RP103N201D,RP103K231D,RP103N161D,RP103Q321B,RP103K231B,RP103Q212B,RP103Q212D,RP103Q321D,RP103N311B,RP103Q171B,RP103Q292B,RP103Q171D,RP103Q292D,RP103N161B,RP103N311D,RP103K121D,RP103NXX1X,RP103N271D,RP103K121B,RP103K SERIES,RP103Q221B,RP103Q221D,RP103N181B5,RP103Q192B,RP103Q282B5,RP103Q192D,RP103N271B,RP103K241B,RP103QXX1XSERIES,RP103NXX1∗-TR-FE,RP103K241D,RP103Q222B,RP103Q331D,RP103Q222D,RP103Q331B,RP103X28XX,RP103NXX1B,RP103N301B,RP103Q181B,RP103NXX1D,RP103Q181D,RP103N151D,RP103N151B,RP103N301D,RP103K171B,RP103K171D,RP103XXXXB,RP103XXXXD,RP103K321B,RP103Q182D5,RP103K321D,RP103Q181B5,RP103Q231B,RP103Q122B,RP103Q231D,RP103Q122D,RP103K281B5,RP103KSERIES,RP103NXX1X SERIES,RP103N221D,RP103N221B,RP103K291B,RP103K291D,RP103N181D,RP103N181B,RP103K211B,RP103K211D,RP103Q232B,RP103Q232D,RP103Q191B,RP103Q191D,RP103N331D,RP103N331B,RP103K181B,RP103K181D,RP103KXX1D,RP103K331D,RP103N291D,RP103X33XX,RP103N291B,RP103Q182B5,RP103KXX1B,RP103K331B,RP103Q132B,RP103Q132D,RP103Q241B,RP103Q241D,RP103Q281D5,RP103K281D5,RP103N211D,RP103N211B,RP103K221D,RP103N171D,RP103K221B,RP103Q121B,RP103Q242B,RP103Q121D,RP103Q242D,RP103KXX1X,RP103N171B,RP103N321D,RP103N321B,RP103K151D,RP103K181B5,RP103QXX1∗-TR-FE,RP103K151B,RP103K301D,RP103X33XD,RP103K301B,RP103Q251B,RP103Q142B,RP103Q251D,RP103Q142D,RP103NXX1XSERIES,RP103N241D,RP103N241B,RP103K271D,RP103K271B,RP103X18X∗5-XX,RP103Q131B,RP103Q252B,RP103Q131D,RP103Q252D,RP103N121D,RP103N121B,RP103K161D,RP103QXX2X,RP103X12XX,RP103K161B,RP103Q302D,RP103K311B,RP103Q181D5,RP103K181D5,RP103Q302B,RP103K311D,RP103Q152B,RP103Q152D,RP103Q261B,RP103Q261D,RP103N231D,RP103N231B,RP103QXX1X,RP103K281B,RP103K281D,RP103N191D,RP103N191B,RP103K201B,RP103K201D,RP103QXX2X SERIES,RP103Q141B,RP103Q262B,RP103Q141D,RP103Q262D
NP4271系列40V IO=500mA LDO,具有看门狗定时器和复位功能
描述- 该资料介绍了NP4271系列LDO线性稳压器,这是一款符合AEC-Q100 Grade 1标准的汽车级产品。它具有40V输入电压范围、500mA输出电流能力,内置看门狗定时器和复位功能,适用于汽车电子控制单元(ECUs)、功率控制和电信等领域。
型号- NP4271AC501AE2P,NP4271AABBBCDDE,NP4271,NP4271AC502AE2P,NP4271AC301BE2P,NP4271 SERIES
RP122x系列400毫安低噪声低电源电流LDO稳压器
描述- 该资料介绍了RP122x系列低噪声低压差线性稳压器(LDO)的特性、规格和应用。该器件具有低输出噪声、高纹波抑制比和快速响应特性,适用于高性能模拟电路等噪声敏感的应用。
型号- RP122N251B,RP122N481B,RP122N481D,RP122N421B5,RP122N401D,RP122ZXX3∗-TR-F,RP122N401B,RP122K121D,RP122K351D,RP122Z25XB,RP122Z48XB,RP122Z25XD,RP122Z48XD,RP122K121B,RP122K351B,RP122Z40XB,RP122N291D5,RP122Z40XD,RP122X47XX,RP122X24XX,RP122N251D,RP122Z31XD5,RP122N141B,RP122Z13XD,RP122N121D5,RP122Z13XB,RP122N181B5,RP122K231D,RP122K461D,RP122X12XD,RP122Z36XB,RP122Z36XD,RP122K231B,RP122K461B,RP122N301B5,RP122X36XX,RP122X13XX,RP122N371D,RP122N371B,RP122N141D,RP122N241B,RP122N471D,RP122Z41XD,RP122K341D,RP122Z26XB,RP122Z42XD5,RP122Z26XD,RP122K341B,RP122N311B5,RP122K191B,RP122X25XX,RP122X48XX,RP122N481X,RP122Z41XB,RP122K191D,RP122X40XX,RP122N471B,RP122N241D,RP122N131B,RP122N361B,RP122Z14XD,RP122Z14XB,RP122N181D5,RP122K451D,RP122Z37XB,RP122K221B,RP122Z37XD,RP122K451B,RP122K221D,RP122N301D5,RP122X14XX,RP122X37XX,RP122X31XX5,RP122ZXXXX,RP122N131D,RP122N361D,RP122N421D,RP122N421B,RP122N281X,RP122K141B,RP122K371B,RP122X42XX5,RP122X48XD,RP122Z23XB,RP122Z46XB,RP122K141D,RP122K371D,RP122Z23XD,RP122Z46XD,RP122Z42XB5,RP122N311D5,RP122X26XX,RP122Z18XD5,RP122N271D,RP122X41XX,RP122Z12XD5,RP122N271B,RP122K401B,RP122K401D,RP122N311D,RP122N311B,RP122K251B,RP122K481B,RP122Z34XB,RP122K251D,RP122K481D,RP122Z29XD5,RP122Z19XD,RP122Z34XD,RP122NXX1X,RP122Z19XB,RP122K281B5,RP122X38XX,RP122X15XX,RP122K451B5,RP122N391D,RP122X18X∗5,RP122X30XX,RP122Z30XB5,RP122N391B,RP122N161D,RP122N161B,RP122N411D,RP122N411B,RP122N421D5,RP122K361B,RP122K131D,RP122Z24XB,RP122K361D,RP122Z47XB,RP122Z24XD,RP122Z47XD,RP122K131B,RP122Z48XX,RP122X27XX,RP122X42XX,RP122Z31XB5,RP122N261D,RP122X30XX5,RP122N261B,RP122Z12XD,RP122N301D,RP122Z12XB,RP122K481X,RP122N301B,RP122K471B,RP122K241D,RP122X29XX5,RP122Z35XB,RP122K471D,RP122Z35XD,RP122XXXXD,RP122K121B5,RP122K241B,RP122XXXXB,RP122K281D5,RP122X16XX,RP122X39XX,RP122K451D5,RP122X18XX5,RP122X31XX,RP122N151D,RP122N381D,RP122KXX1∗-TR,RP122N151B,RP122N381B,RP122Z30XD5,RP122Z29XB,RP122N441D,RP122Z29XD,RP122K311B,RP122N211D,RP122N441B,RP122N211B,RP122Z21XB,RP122Z44XB,RP122Z21XD,RP122Z44XD,RP122K161B,RP122K391B,RP122Z28XD5,RP122K311D,RP122K301B5,RP122N,RP122K,RP122K291B5,RP122X28XX,RP122K161D,RP122K391D,RP122ZXX1X,RP122N291D,RP122X43XX,RP122N291B,RP122X20XX,RP122Z17XB,RP122K281X,RP122N331D,RP122K421B,RP122N331B,RP122N451B5,RP122Z32XB,RP122Z32XD,RP122K271B,RP122K421D,RP122K121D5,RP122K181B5,RP122Z17XD,RP122K271D,RP122X17XX,RP122Z18XX,RP122XXXXX,RP122X32XX,RP122N181D,RP122N181B,RP122X12XX5,RP122K421B5,RP122N431D,RP122K301B,RP122N201D,RP122N431B,RP122ZXX1∗-TR-F,RP122N201B,RP122X28XD,RP122Z22XB,RP122K151B,RP122X28XX5,RP122Z45XB,RP122Z22XD,RP122K381B,RP122K151D,RP122Z45XD,RP122K301D,RP122K301D5,RP122X29XX,RP122K381D,RP122K291D5,RP122X21XX,RP122X44XX,RP122N281D,RP122Z12XB5,RP122N281B,RP122Z18XB5,RP122N321D,RP122K411B,RP122N321B,RP122N181X,RP122Z33XB,RP122K261B,RP122Z45XD5,RP122Z33XD,RP122K261D,RP122K181D5,RP122Z29XB5,RP122Z18XD,RP122K411D,RP122Z18XB,RP122X18XX,RP122X45XX5,RP122X33XX,RP122KXX1X,RP122N171D,RP122N171B,RP122Z27XD,RP122N231D,RP122N461D,RP122N231B,RP122K421D5,RP122Z42XD,RP122K331B,RP122Z27XB,RP122K331D,RP122K181B,RP122Z28XX,RP122Z42XB,RP122K181D,RP122X45XX,RP122X22XX,RP122N461B,RP122Z15XD,RP122Z38XD,RP122N351B,RP122N121D,RP122Z15XB,RP122N121B,RP122Z45XB5,RP122Z30XD,RP122K211B,RP122K441B,RP122Z38XB,RP122K211D,RP122K441D,RP122K311B5,RP122X19XX,RP122K291B,RP122Z30XB,RP122K291D,RP122N281B5,RP122X34XX,RP122N351D,RP122N451D,RP122X SERIES,RP122Z28XD,RP122N221D,RP122K181X,RP122N451B,RP122N221B,RP122Z43XB,RP122Z20XD,RP122Z43XD,RP122K171B,RP122NXX1∗-TR-FE,RP122K321B,RP122X,RP122Z28XB5,RP122Z28XB,RP122K321D,RP122ZXX3X,RP122K171D,RP122Z20XB,RP122N291B5,RP122X23XX,RP122X46XX,RP122N341D,RP122Z16XB,RP122Z39XD,RP122N341B,RP122K201B,RP122Z31XD,RP122N451D5,RP122K281B,RP122Z,RP122N121B5,RP122K431B,RP122K201D,RP122K311D5,RP122Z39XB,RP122Z16XD,RP122K431D,RP122K281D,RP122N281D5,RP122Z31XB,RP122X12XX,RP122X35XX,RP122N191D,RP122N191B
RP114x系列300 mA LDO稳压器
描述- 该资料介绍了RP114x系列低 dropout线性稳压器(LDO)IC的特性、应用和选型指南。该系列产品基于CMOS工艺,具有高输出电压精度、低供电电流、低dropout和高纹波抑制等特点。适用于手持通信设备等便携式设备的电源供应。
型号- RP114K101D,RP114K331D,RP114N081B,RP114K101B,RP114N081D,RP114Q302B5,RP114K181D,RP114K181B,RP114Q252D,RP114K331B,RP114Q252B,RP114N231B,RP114N231D,RP114K101B5,RP114K291B,RP114K291D,RP114Q122B5,RP114K211B,RP114Q362D,RP114K211D,RP114Q132B,RP114Q362B,RP114Q132D,RP114N121B,RP114N351B,RP114Q282D5,RP114N121D,RP114N351D,RP114K341B5,RP114K281B5,RP114X,RP114K171D,RP114K171B,RP114Q342D5,RP114K321B,RP114Q262D,RP114K321D,RP114Q262B,RP114N221D,RP114N221B,RP114N191D,RP114N191B,RP114K281B,RP114K281D,RP114Q122D5,RP114K201B,RP114Q142D,RP114K201D,RP114Q142B,RP114Q182B5,RP114N341B,RP114NXX1∗(Y)-TR-FE,RP114N111D,RP114N111B,RP114N341D,RP114N291D,RP114K341D5,RP114N291B,RP114K281D5,RP114Q082B,RP114K161D,RP114K161B,RP114K311B,RP114K311D,RP114Q082D,RP114KXX1B,RP114Q232B,RP114Q232D,RP114N211D,RP114N211B,RP114KXX1∗(Y)-TRB,RP114KXX1∗(Y)-TR,RP114N181D,RP114N181B,RP114K271B,RP114N101B5,RP114K271D,RP114Q192D,RP114Q192B,RP114Q342B,RP114Q112D,RP114Q182D5,RP114Q342D,RP114Q112B,RP114N101D,RP114N331D,RP114N101B,RP114N331B,RP114Q302D5,RP114N281D,RP114K301B,RP114K151D,RP114K151B,RP114K301D,RP114Q092D,RP114Q092B,RP114Q242B,RP114Q242D,RP114N201B,RP114K131D5,RP114N201D,RP114N281B,RP114K301B5,RP114K261B,RP114N171D,RP114K261D,RP114N101D5,RP114QXX2BD,RP114Q122B,RP114Q352B,RP114Q122D,RP114Q352D,RP114K181D5,RP114N321D,RP114N321B,RP114N171B,RP114N271D,RP114N281B5,RP114N341B5,RP114Q292D,RP114K141D,RP114K141B,RP114Q292B,RP114Q212D,RP114X SERIES,RP114Q212B,RP114K131B5,RP114K301D5,RP114N271B,RP114K251B,RP114N161D,RP114K251D,RP114Q172B,RP114Q172D,RP114Q322D,RP114N311B,RP114Q322B,RP114K181B5,RP114N311D,RP114K121D5,RP114N161B,RP114K361B,RP114K361D,RP114N281D5,RP114N341D5,RP114K131D,RP114K131B,RP114Q222D,RP114K171D5,RP114Q222B,RP114QXX2∗(Y)-TR-FE,RP114N261D,RP114N261B,RP114K241B,RP114K241D,RP114N121B5,RP114Q102B5,RP114K091B,RP114Q182D,RP114Q182B,RP114Q102D,RP114Q332D,RP114N301B,RP114K091D,RP114Q102B,RP114Q332B,RP114NXX1B,RP114N301D,RP114N151D,RP114K121B5,RP114N151B,RP114K121B,RP114K351B,RP114K351D,RP114Q342B5,RP114N301B5,RP114Q272B,RP114K121D,RP114Q272D,RP114K171B5,RP114N251D,RP114K111D5,RP114K,RP114N251B,RP114K231D,RP114Q102D5,RP114N121D5,RP114K081B,RP114Q152D,RP114K231B,RP114Q152B,RP114Q302B,RP114QXX2B,RP114K081D,RP114Q302D,RP114N181B5,RP114N141D,RP114N141B,RP114K111B,RP114K341D,RP114N091B,RP114N091D,RP114N301D5,RP114K191B,RP114Q282B,RP114K341B,RP114K111D,RP114Q282D,RP114Q202B,RP114K191D,RP114Q202D,RP114N241B,RP114K111B5,RP114N241D,RP114K221D,RP114Q162B,RP114K221B,RP114Q162D,RP114N181D5,RP114Q312B,RP114Q312D,RP114N131B,RP114Q282B5,RP114N361D,RP114K101D5,RP114N361B,RP114N131D
汽车级NP4271 40 V IO=500mA LDO,内置看门狗定时器和复位功能
描述- NP4271是一款采用Bi-CMOS工艺的低 dropout线性稳压器(LDO),具有看门狗定时器和复位功能。该器件适用于汽车电子控制单元(ECU)和工业设备,具备宽工作电压范围、高输出精度、窗口检测电压、低边和高边检测电压等功能。
型号- NP4271AC501AE2P,NP4271AABBBCDDE,NP4271,NP4271AC502AE2P,NP4271AC301BE2P
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