低压差线性稳压器（LDO）作为电源和电子设备之间的电源管理芯片，承担着对电能的变换、分配、检测以及稳压、降噪的职能。其性能的优劣对整机的性能有着直接的影响，低压差稳压器 (LDO) 是在维持小的输出输入电压差的情况下，把一个较高电压输入，转换为一个略低的稳定输出电压的常见方法。它的优势之一是，能够衰减开关模式电源生成的电压纹波。
Wayon LDO系列产品包括低输入电压和中高压输入电压，它们具有多种特性，如低高精度的输出电压、低静态电流、低漏失电压、低噪声、高PSRR、瞬态快速响应、小封装尺寸等。这类产品的应用比较广泛包括智能手机、图像采集、仪器仪表、便携式设备等等。
LOW INPUT VOLTAGE LDOPart NoDescriptionIout（A）Dropout Voltage
(mV)Vin Range(V)Vout(V)PSRR
(dB)Noise (µVRMS)Switch EnableIshutdown（μA）Iq
（μA）Temp
Range（℃）PackageNOTEWR0308300mA High PSRR Low Dropout Voltage Regulator0.31352 ~ 61.2~3.370100Yes0.125-40 ~ +85SC-82,SOT-23-3,
SOT-23-5,DFN-4(1*1)MPWR0602600mA LDO Regulator0.61102.5 ~ 7ADJ/1.5~3.355100Yes190-40 ~ +85(T)SOT23-3,SOT23-5,SOT89,
SOT223,SOP8,TDFN-6LMPWR0114Ultra‐Low IQ150 mA CMOS LDO Regulator0.151702.2 ~ 5.51.2 ~ 3.670120Yes0.10.5-40 ~ +85DFN-4(1*1),SOT-563Q2WR0331Low Power Consumption CMOS LDO0.32302.1 ~ 5.51.1 ~ 3.36550Yes12-40 ~ +85SOT23-3,SOT23-5,DFN-4(1*1)Q2WR0333Low Power Consumption CMOS LDO0.32302.1 ~ 5.51.1 ~ 3.365100Yes12-40 ~ +85DFN-4(1*1)Q2WR0334Low Power Consumption CMOS LDO0.32302.1 ~ 5.51.1 ~ 3.36550Yes140-40 ~ +85SOT23-3,SOT23-5Q2WR0332High PSRR, High Speed, CMOS LDO0.32502.2 ~ 5.51.0 ~ 3.370100Yes142-40 ~ +85SOT23-3,SOT23-5,DFN-4(1*1)Q2WR0335High PSRR, High Speed, CMOS LDO0.353002.2 ~ 5.51.0 ~ 3.370100Yes142-40 ~ +85SOT23-3,SOT23-5,DFN-4(1*1)Q2WR0512500mA High PSRR, High Speed, CMOS LDO0.51302.5 ~ 5.51.2 ~ 3.365100Yes142-40 ~ +85SOT23-5,DFN-4(1*1)Q2WR0303300mA Ultra-Fast Output Voltage LDO Regulator0.37002.5 ~ 61.1~1.455100Yes180-40 ~ +85SOT23-3,SOT23-5,
SC70-5,SC-82MPWR0304Ultra-Low Noise Ultra-Fast 300mA LDO Regulator0.31502.5 ~ 7ADJ/1.5~3.370100Yes185-40 ~ +85SC70-5，SOT23-5，
TSOT23-5MPWR0316300mA Low Dropout LDO0.3
2 ~ 61.2 ~ 3.37545Yes136-40 ~ +125DFN-4(1*1)MPHIGH INPUT VOLTAGE LDO
Part NoDescriptionIout（A）Dropout Voltage
(mV)Vin Range(V)Vout(V)PSRR(dB)Noise (µVRMS)Switch EnableIshutdown
（μA）Iq
（μA）Temp
Range（℃）PackageNOTEWR78LXXA3 Terminal 100mA Positive Voltage Regulator0.118005.3~303.3~244940No_3000-40 ~ +85SOT-89,SOP-8L,TO92-3LMPWR1117A1A Low Dropout Positive Voltage Regulator113002.7 - 20ADJ/1.2~5.075_No_5000-40 ~ +125SOT223, TO252, SOT89MPWR011712V Low Current Consumption
50mA CMOS Voltage Regulator0.05352.5~12ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR033712V Low Current Consumption
300mA CMOS Voltage Regulator0.31602.5~12ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR051312V Low Current Consumption
500mA CMOS Voltage Regulator0.52502.5~12ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR011818V Low Current Consumption
50mA CMOS Voltage Regulator0.05352.5~18ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR033818V Low Current Consumption
300mA CMOS Voltage Regulator0.31602.5~18ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR051418V Low Current Consumption
500mA CMOS Voltage Regulator0.52502.5~18ADJ/1.2~5.07027*VOUTNo_2-40 ~ +85SOT-23-3,SOT-23-5,SOT89-3,TO92Q3WR0202LDO CMOS-25V Regulator0.254002.7 ~ 251.5~5.0__No_1-40 ~ +125SOT23, SOT223, SOT89MPWR1502Low-Dropout Regulators1.53502.3 ~ 261.5 ~ 12__Yes102200-40 ~ +125TO220,TO263MPWR0119Low Power High voltage Regulator0.053530（MAX）ADJ/1.5~5.050_No_1.7-40 ~ +85SOT-89-3,SOT-23-3,SOT-23-5Q3WR0116100mA Low Power High voltage Regulator0.13030（MAX）ADJ/2.1~1250_No_2.5-40 ~ +85SOT-89-3,SOT-23-5,TO92Q3WR0115150mA Low Power High voltage Regulator0.15130040（MAX）ADJ/0.8~1250220No_4.5-40 ~ +85SOT-89-3,SOT-23-3,SOT-23-5Q3