产品介绍：
RP509x是一款具有同步整流器的低电源电流PWM / VFM降压DC / DC转换器具有0.5 A / 1 A的输出电流（1）。在内部，单个转换器包含一个参考电压单元，放大器，开关控制电路，模式控制电路，软启动电路，欠压锁定（UVLO）电路，热关断电路和开关晶体管。 RP509x正在使用同步通过使用内置开关晶体管代替二极管来提高整流效率。
使用同步整流不仅可以提高电路性能，还可以减少零件设计计数。输出电压控制方法可以在PWM /VFM自动切换控制类型和强制PWM控制类型，与轻载条件下的普通PWM控制相比，噪声进一步降低，并且这些类型可以通过MODE引脚设置。在内部固定输出之间可选择输出电压类型电压类型和外部可调输出电压类型。 RP509x中的保护电路是电流限制电路和热关断电路。 LX电流极限值（典型值）可在1.6 A至1.0 A之间选择。
RP509Z适用于WLCSP-6-P6，可实现高密度安装在板上。使用电容器
用作外部零件的0402- / 1005-尺寸（inch / mm）和0603- / 1608尺寸（inch / mm）的电感器有助于节省空间用于设备。 RP509N在SOT-23-6中可用。
产品特征：
输入电压范围（最大额定值）2.3V至5.5V（6.5V）
输出电压范围（固定输出电压类型）·······························（可调输出电压类型）·······0.6 V至5.5 V
输出电压精度（固定输出电压类型）·········±1.5％（VSET（2）≥1.2 V），±18 mV（VSET <1.2 V）
反馈电压精度（可调输出电压类型）···±9 mV（VFB = 0.6 V）
输出电压/反馈电压温度系数····±100 ppm /°C
可选的振荡器频率···············································。 6.0兆赫
振荡器最大占空比······················································· ·民。 100％
内置驱动器导通电阻（VIN = 3.6 V）································ PCH。 Nch 0.175 75 0.155Ω（RP509Z）典型。 PCH。 Nch的0.195.。 0.175Ω（RP509N）
待机电流····················································· ············典型。 0微安
UVLO检测器阈值····················································典型。 2.0伏
软启动时间··················································· ················典型。 0.15毫秒
电感电流限制电路·····················································。 1.6 A / 1.0 A，可选电流限制
包······················································· ···········WLCSP-6-P6（1.28毫米x 0.88毫米x 0.64毫米）
SOT-23-6（2.9毫米x 2.8毫米x 1.1毫米）
产品应用：
便携式通信设备：手机/智能手机，数码相机和笔记本电脑锂离子电池用设备。
延申型号：
R1518J001C-T1-FE，R1518J001C-T1-FE，R1524H050B-T1-AE，R1524S033B-E2-FE，R1524S033B-E2-FE，R1524S050B-E2-FE，R1524S085B-E2-FE，R5400N150FA-TR-FF，R5402N101KD-TR-FF，R5402N101KD-TR-FF，R5402N101KD-TR-FF，R5402N101KD-TR-FF，R5402N106KD-TR-FF，R5402N106KD-TR-FF，R5402N110KD-TR-FF，R5402N120KD-TR-FF，R5402N149KD-TR-FF，R5402N149KD-TR-FF，R5402N149KD-TR-FF，R5402N163KD-TR-FF，R5402N163KD-TR-FF，R5405L193KD-TR，R5405L226KD-TR，R5405L226KD-TR， R5405L279KD-TR，R5405L279KD-TR，R5432V405BA-E2-FE，R5434D402AA-TR-FE，R5434D402AA-TR-FE，R5436T503BA-E2-FF，R5436T503BA-E2-FF，R5438L312BA-TR，R5438L315AA-TR，R5439K314JB-TR，R5439K314JB-TR，R5460N202AA-TR-FE，R5460N202AA-TR-FE，R5460N202AA-TR-FE，R5460N207AA-TR-FE，R5460N207AA-TR-FE，R5460N207AA-TR-FE，R5460N207AF-TR-FE，R5460N207AF-TR-FE，R5460N208AA-TR-FE，R5460N208AF-TR-FE，R5460N208AF-TR-FE，R5460N210AD-TR-FE，R5460N213AD-TR-FE，R5460N214AF-TR-FE，R5460N214AF-TR-FE，R5460N222AA-TR-FE，R5460N508AF-TR-FF，R5460N514AF-TR-FF，R5460N538AF-TR-FF，R5478N110CD-TR-FF，R5478N110CD-TR-FF，R5478N120CD-TR-FF，R5478N149CD-TR-FF，R5478N149CD-TR-FF，R5478N163CD-TR-FF，R5478N187CD-TR-FF，R5478N193EC-TR-FF，R5478N203CK-TR-FF，R5478N203CK-TR-FF，R5478N218CD-TR-FF，R5478N218CD-TR-FF，R5478N227CD-TR-FF，R5478N227CD-TR-FF，R5478N248CD-TR-FF，R5478N248CD-TR-FF，R5478N265CD-TR-FF，R5478N360CF-TR-FF，R5478N360CF-TR-FF，R5480K257CL-TR，R5486K104CG-TR，R5486K505CM-TR，R5486K514CM-TR，R5487L105KD-TR，R5487L113KD-TR，R5487L119KM-TR，R5487L121SD-TR，R5487L123KM-TR，R5487L123KM-TR，R5492N101KL-TR-FF，R5494L336AP-TR，R2025S-E2-F，R5524N004A-TR-AE，R5528Z001A-E2-F，R5560Z011A-TL-F，R3111H201C-T1-FE，R3111H221A-T1-FE，R3111H221C-T1-FE，R3111H221C-T1-FE，R3111H241C-T1-FE，R3111H271A-T1-FE，R3111H271A-T1-FE，R3111H271C-T1-FE，R3111H271C-T1-FE，R3111H301A-T1-FE，R3111H301C-T1-FE，R3111H301C-T1-FE，R3111H301C-T1-FE，R3111H321A-T1-FE，R3111H341C-T1-FE，R3111H351A-T1-FE，R3111H381A-T1-FE，R3111H421A-T1-FE，R3111H421A-T1-FE，R3111H441C-T1-FE，R3111H441C-T1-FE，R3111H441C-T1-FE，R3111H451A-T1-FE，R3111H451C-T1-FE，R3111H471A-T1-FE，R3111H481C-T1-FE，R3111H481C-T1-FE，R3111H501A-T1-FE，R3111H551A-T1-FE，R3111H581A-T1-FE，R3111N201A-TR-FE，R3111N221C-TR-FE，R3111N251A-TR-FE，R3111N271C-TR-FE，R3111N272A-TR-FE，R3111N272A-TR-FE，R3111N301C-TR-FE，R3111N321C-TR-FE，R3111N331C-TR-FE，R3111N361A-TR-FE，R3111N551C-TR-FE，R3111N551C-TR-FE，R3111Q181A-TR-FE，R3111Q231A-TR-FE，R3111Q271A-TR-FE，R3111Q271A-TR-FE，R3111Q301A-TR-FE，R3111Q301A-TR-FE，R3116N251A-TR-AE，R3116N251A-TR-AE，R3116N321A-TR-AE，R3118N291A-TR-AE，R3119N040A-TR-FE，R3119N050A-TR-FE，R3119N050E-TR-FE，R3119N055A-TR-FE，R3200K001B-TR，R3200K001B-TR，RN5VD25CA-TR-FE，RN5VD27CA-TR-FE，RN5VD27CA-TR-FE，R1112N211B-TR-FE，R1114N181D-TR-FE，R1121N301A-TR-FE，R1121N501A-TR-FE，R1121N501A-TR-FE，R1131N121D-TR-FE，R1131N121D-TR-FE，R1131N251D-TR-FF，R1131N281D-TR-FF，R1131N281D-TR-FF，R1131N281D-TR-FF，R1131N301D-TR-FF，R1131N331B-TR-FE，R1131N331B-TR-FE，R1131N331D-TR-FE，R1131N331D-TR-FE，R1154L050B-TR，R1154N001C-TR-FE，R1161N301D-TR-FE，R1161N331D-TR-FE，R1161N331D-TR-FE，R1170H301B-T1-FE，R1170H331B-T1-FE，R1170H331B-T1-FE，R1170H361B-T1-FE，R1171J401D-T1-F，R1172H421D-T1-F，R1173D001B-TR-FE，R1173D001B-TR-FE，R1173D001D-TR-FE，R1173D001D-TR-FE，R1173D001D-TR-FE，R1173D001D-TR-FE，R1180N121B-TR-FE，R1180N251B-TR-AE，R1180N281B-TR-FE，R1180N361B-TR-FE，RH5RE30AA-T1-FE，RH5RE30AA-T1-FE，RH5RE33AA-T1-FE，RH5RE45AA-T1-FE，RH5RE50AA-T1-FE，RH5RL30AA-T1-FE，RH5RL30AA-T1-FE，RH5RL33AA-T1-FE，RH5RL33AA-T1-FE，RH5RL35AA-T1-FE，RH5RL36AA-T1-FE，RH5RL36AA-T1-FE，RH5RZ30CA-T1-FE，RH5RZ30CA-T1-FE，RH5RZ33CA-T1-FE，RH5RZ33CA-T1-FE，RH5RZ36CA-T1-FE，RH5RZ50CA-T1-FE，RH5RZ50CA-T1-FE，RN5RF33BA-TR-FE，RN5RL33AA-TR-FE，RN5RL50AA-TR-FE，RP100K121B-TR，RP100K121B-TR，RP100K181B-TR，RP100K301D-TR，RP100K331B-TR，RP100N301D-TR-F，RP100N331B-TR-FF，RP100N331D-TR-FF，RP102K271B-TR，RP102N121D-TR-FE，RP102N121D-TR-FE，RP102N181D-TR-FF，RP102N181D-TR-FF，RP102N181D-TR-FF，RP102N181D-TR-FF，RP102N181D-TR-FF，RP102N271D-TR-FE，RP102N271D-TR-FE，RP102N271D-TR-FE，RP102N271D-TR-FE，RP102N271D-TR-FF，RP102N271D-TR-FF，RP102N271D-TR-FF，RP102N271D-TR-FF，RP102N281D-TR-FE，RP102N291D-TR-FE，RP102N331D-TR-FE，RP102N331D-TR-FE，RP102N331D-TR-FF，RP102N331D-TR-FF，RP102Z131D-TR-F，RP102Z131D-TR-F，RP104N301D-TR-FE，RP105K121D-TR，RP105L101F-TR，RP105L111F-TR，RP105L111F-TR，RP105L111F-TR，RP105L121F-TR，RP110L111D-TR，RP110L181D-TR，RP110L181D-TR，RP110L301B-TR，RP110L301D-TR，RP110L331D-TR，RP110L331D-TR，RP110N121D-TR-FE，RP110N121D-TR-FE，RP110N221D-TR-FE，RP110N281D-TR-FE，RP110N331D-TR-FE，RP110N331D-TR-FE，RP110Q182D-TR-FE，RP111H001D-T1-AE，RP111H001D-T1-JE，RP111L101D-TR，RP111L101D-TR，RP111L181D-TR，RP111L331D-TR，RP111L331D-TR，RP111N001D-TR-AE，RP111N001D-TR-AE，RP111N181D-TR-FE，RP111N331D-TR-FE，RP112K281D-TR，RP112K281D-TR，RP112K281D-TR，RP112K291D-TR，RP112K291D-TR，RP112K291D-TR，RP112K451D-TR，RP112N251D-TR-FE，RP112N301D-TR-FE，RP114K091D-TRB，RP114K101D5-TRB，RP114K101D5-TRB，RP114K111D-TRB，RP114K121D-TRB，RP114K131D-TR，RP114K151D-TRB，RP114K181D-TRB，RP114K261D-TRB，RP114K281D-TRB，RP114K291D-TRB，RP114K301D-TRB，RP114K301D-TRB，RP114K301D-TRB，RP114K301D-TRB，RP114K311D-TRB，RP114K321D-TRB，RP114K331D-TRB，RP114N121D-TR-FF，RP114N181B-TR-FF，RP114N181B-TR-FF，RP114N181D-TR-FE，RP114N181D-TR-FF，RP114N251D-TR-FF，RP114N261D-TR-FF，RP114N281B-TR-FF，RP114N281D-TR-FF，RP114N281D-TR-FF，RP114N281D-TR-FF，RP114N331B-TR-FF，RP114N331B-TR-FF，RP114N331D-TR-FF，RP114N331D-TR-FF，RP115L171B5-E2，RP115L171B5-E2，RP115L181B-E2，RP115L181B-E2，RP115L181B-E2，RP115L181B-E2，RP115L211B-E2，RP115L281D-E2，RP115L301D-E2，RP115L331D-E2，RP115L331D-E2，RP115L331D-E2，RP118K231D-TR，RP122Z281D-TR-F，RP130L181B-TR-A，RP130L181B-TR-A，RP130L281B-TR-A，RP130N121B-TR-AE，RP130N251D-TR-AE，RP130N361D-TR-FE，RP130N501D-TR-FE，RP131H331D-T1-FE，RP132H001B-T1-FE，RP132H001D-T1-AE，RP132S182D-E2-AE，RP132S331D-E2-FE，RP152L002A-TR，RP152L002A-TR，RP152L002A-TR，RP170N301D-TR-FE，RP170N301D-TR-FE，RP170N301D-TR-FE，RP170N331D-TR-FE，RP170N331D-TR-FF，RP170N331D-TR-FF，RP173N331D-TR-FE，RP173N331D-TR-FE，RP173N421B-TR-FE，RP550L001B-TR-A，RC5T619-0133，RN5T566A，RN5T566A，RN5T567BG-E4，RN5T568S-E4，RN5T568Z-E4，RN5T569C-E4，RN5T569C-E4
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