低壓差線性穩(wěn)壓器（LDO）作為電源和電子設(shè)備之間的電源管理芯片，承擔(dān)著對(duì)電能的變換、分配、檢測(cè)以及穩(wěn)壓、降噪的職能。其性能的優(yōu)劣對(duì)整機(jī)的性能有著直接的影響，低壓差穩(wěn)壓器 (LDO) 是在維持小的輸出輸入電壓差的情況下，把一個(gè)較高電壓輸入，轉(zhuǎn)換為一個(gè)略低的穩(wěn)定輸出電壓的常見方法。它的優(yōu)勢(shì)之一是，能夠衰減開關(guān)模式電源生成的電壓紋波。
Wayon LDO系列產(chǎn)品包括低輸入電壓和中高壓輸入電壓，它們具有多種特性，如低高精度的輸出電壓、低靜態(tài)電流、低漏失電壓、低噪聲、高PSRR、瞬態(tài)快速響應(yīng)、小封裝尺寸等。這類產(chǎn)品的應(yīng)用比較廣泛包括智能手機(jī)、圖像采集、儀器儀表、便攜式設(shè)備等等。
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