概述 |
Sipex半導(dǎo)體公司具有一種針對ASIC或者微控制器把電壓降低的最簡單且成本最低的技術(shù),,并將其應(yīng)用到LDO(低壓差穩(wěn)壓器)中。LDO能夠提供一個無噪聲的,,具有良好穩(wěn)定性的DC電壓,,同時具有優(yōu)秀的瞬態(tài)響應(yīng)。Sipex提供了大量寬范圍電壓和電流的LDO產(chǎn)品,。 |
|
LDO穩(wěn)壓器原理 |
低壓差穩(wěn)壓器(LDO)最大的特點(diǎn)是低噪聲,,紋波小,電路簡單,,固定輸出時只需三個引腳,。電路原理下圖所示,調(diào)整管Q1工作在放大區(qū),,起到穩(wěn)壓的作用Vin=Vce+Vout。當(dāng)Vout變大,,VR2也變大,經(jīng)放大器放大,,VB也變大,,則三極管管壓降Vce變大,則Vout變??;反之,當(dāng)Vout變小,,VR2也變小,,經(jīng)放大器放大,VB變小,,則三極管管壓降Vce變小,,則Vout變大。IVIN≈IVOUT,,轉(zhuǎn)換效率η≈Vout/Vin,。 |
|
特性 |
小型封裝
低輸出電壓:VOUT<2V
低瞬變電流:IQ<30μA
低輸入電壓:VIN<3V
低噪聲,高PSRR
快速打開時間<100μs,,高速 |
應(yīng)用場合 |
臺式計(jì)算機(jī)
外圍設(shè)備
電信和數(shù)據(jù)通信設(shè)備
普通電子器件
便攜式應(yīng)用
機(jī)頂盒 |
LDO電源管理器件系列產(chǎn)品一覽表 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
150mA(雙路輸出) |
SP6265 |
2% |
√ |
√ |
√ |
√ |
|
|
2.8V,2.85V |
0.35 |
70μA |
5.5V-7V |
|
DFN-8,,TSOT-26 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
50mA |
SP6222 |
2% |
|
√ |
√ |
|
|
√ |
|
0.2 |
14μA |
1.6 V-4.5V |
|
SC70,,SOT23 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
100mA |
LP2950 |
0.5%,1.0% |
|
|
|
√ |
√ |
|
|
0.38 |
150μA |
4.3V-30V |
|
SOIC-8 |
LP2951 |
0.5%,1.0% |
|
|
|
√ |
√ |
√ |
|
0.38 |
150μA |
4.3V-30V |
√ |
SOIC-8 |
SP317L |
1.0% |
|
|
|
|
|
√ |
|
3 |
|
15V(max) |
|
NSOIC-8,TO-92 |
SPX116 |
3% |
|
|
|
√ |
|
|
3.5V |
0.30 |
400μA |
3V-26V |
|
TO-92,,SOT-89 |
SPX2931 |
2%,3% |
|
|
|
√ |
|
|
3.5V |
0..30 |
400μA |
4.3V-26V |
|
TO-92,SOT-89 |
SP6200 |
2% |
|
√ |
√ |
√ |
√ |
√ |
2.7V,2.85V,3.5V |
0.16 |
28μA |
2.5V-7V |
√ |
SOT23-5,,DFN-8 |
SP6213 |
2.5% |
√ |
√ |
√ |
√ |
√ |
|
2.7V,2.85V |
0.20 |
65μA |
2.5V-7V |
|
SC-70 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
150mA |
SPX1121 |
1% |
|
|
|
√ |
√ |
|
|
0.30 |
150μA |
4.3V-30V |
|
SOT-223,,TO-92 |
SPX2930 |
3% |
|
|
|
√ |
|
|
3.5V |
0.30 |
400μA |
6V-26V |
|
TO-220,TO-92 ,,SOT-89 |
SPX2950 |
0.5%,1% |
|
|
|
√ |
√ |
|
|
0.30 |
150μA |
4.3V-30V |
|
TO-92 |
SPX2951 |
0.5%,1% |
|
|
|
√ |
√ |
|
|
0.30 |
150μA |
4.3V-30V |
√ |
SOIC-8 |
SPX5205 |
1% |
√ |
√ |
√ |
√ |
√ |
√ |
2.0V,2.8V,3.5V |
0.21 |
70μA |
2.5V-16V |
|
SOT-23-5 |
SP6223 |
2% |
|
|
|
|
|
√ |
|
0.2 |
14μA |
1.6 V-4.5V |
|
SC70,SOT23 |
SP6260 |
2% |
√ |
√ |
√ |
√ |
|
|
1.5V,2.8V |
0.165 |
25μA |
2V-6V |
|
SOT-23-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
200mA |
SP6201 |
2% |
|
√ |
√ |
√ |
√ |
√ |
2.0V,2.85V,3.5V |
0.32 |
28μA |
2.5V-7V |
√ |
SOT-23-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
250mA |
SPX2954 |
0.5%,1% |
|
|
|
√ |
√ |
|
|
0.31 |
150μA |
4.3V-30V |
√ |
TO-92,TO-263,,SOT-223,,
TO-220,,SOIC--8 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
300mA |
SPX1521 |
1% |
|
|
|
√ |
√ |
|
|
0.30 |
150μA |
4.3V-30V |
|
TO-252,,SOT-223,,
TO-220,, TO-263 |
SPX2808 |
2%,3% |
|
|
|
√ |
|
|
3.5V |
0.40 |
400μA |
5V-10V |
|
SOT-89,,SOT-223 |
SP6203 |
2% |
|
√ |
√ |
√ |
|
√ |
2.7V,2.8V,2.85V |
0.18 |
45uA |
2.7V-6V |
|
SOT-23,DFN-8 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
400mA |
SPX1129 |
1% |
|
|
|
√ |
√ |
|
|
0.42 |
150μA |
4.3V-20V |
|
TO-252,,SOT-223
TO-220,,TO-263 |
SPX2920 |
1% |
|
|
|
√ |
√ |
|
|
0.37 |
150μA |
4.3V-20V |
√ |
SOT-223,OIC-8
TO-220,,TO-263-3 |
SPX2945 |
1% |
|
|
|
√ |
√ |
|
|
0.42 |
150μA |
4.3V-24V |
√ |
TO-252,,SOT-223,
TO-220,,TO-263,SOIC-8 |
SPX2975 |
2% |
|
|
|
|
√ |
|
|
0.35 |
70μA |
5.5V-42V |
|
TO-263-5,TO-220-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
500mA |
SPX3819 |
1% |
|
√ |
√ |
√ |
√ |
√ |
|
0.34 |
90μA |
2.5V-16V |
|
SOT-23-5,,SOIC-8 |
SP6205 |
2% |
|
√ |
√ |
√ |
|
√ |
2.7V,2.8V,2.85V |
0.18 |
45uA |
2.7V-6V |
|
SOT-23,,DFN-8 |
SP6231 |
2% |
|
|
|
√ |
|
|
|
|
110μA |
0V-6V |
|
NSOIC-8,DFN-6 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
600mA |
SPX1202 |
1% |
|
√ |
√ |
√ |
|
√ |
|
1.05 |
5mA |
4.5V-15V |
|
TO-252,,SOT-223
TO-220,,TO-263 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
800mA |
SPX1117 |
1% |
√ |
√ |
√ |
√ |
|
√ |
3.5V,1.5V,2.85V |
1.10 |
5mA |
4.25V-15V |
|
TO-252,SOT-223,,
TO-220,TO-263 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
1A |
SPX2810 |
1%,2% |
|
√ |
√ |
√ |
|
√ |
|
1.10 |
5mA |
4.75V-10V |
|
TO-252,,SOT-223
TO-220,,TO-263 |
SPX2940 |
3% |
√ |
√ |
|
√ |
√ |
|
|
0.28 |
1.2mA |
2.5V-16V |
|
TO-220 ,TO-263 |
SPX2941 |
3% |
|
|
|
|
|
√ |
|
0.28 |
1.2mA |
2.5V-16V |
|
TO-263-5,,TO-220-5 |
SPX3940 |
1%,2% |
√ |
√ |
|
√ |
√ |
|
|
0.28 |
1.2mA |
2.5V-16V |
|
TO-252,,SOT-223
TO-220,TO-263 |
SP317 |
1% |
|
|
|
|
|
√ |
|
1.2 |
|
20V(MAX) |
|
TO-252,,SOT-223
TO-220,,TO-263 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
1.5A |
SP1086 |
2% |
√ |
√ |
√ |
√ |
√ |
√ |
1.5V |
1.3 |
500uA |
12(MAX) |
|
TO-252,TO-220,,TO-263 |
SPX1583 |
2% |
|
√ |
|
√ |
|
√ |
|
0.56 |
5mA |
1.75V-5.5V |
|
TO-263-5,,TO-220-5 |
SPX2815 |
1%,2% |
|
√ |
|
√ |
√ |
√ |
|
1.10 |
5mA |
2.75V-7V |
|
TO-252,,TO-220,,TO-263 |
SPX29150 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.39 |
900μA |
2.5V-16V |
|
TO-220,,TO-263 |
SPX29151 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.39 |
900μA |
2.5V-16V |
|
TO-263-5,TO-220-5 |
SPX29152 |
1% |
|
|
|
|
|
√ |
|
0.39 |
900μA |
2.5V-16V |
|
TO-263-5,,TO-220-5 |
SPX29153 |
1% |
|
|
|
|
|
√ |
|
0.39 |
900μA |
2.5V-16V |
|
TO-263-5,,TO-220-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
2A |
SP2996B |
1% |
|
|
|
|
|
√ |
|
0.02 |
8μA |
1.6V-6V |
|
TO-263-5,TO-220-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
3A |
SP1085 |
2% |
√ |
√ |
√ |
|
√ |
√ |
1.5V,2.85V |
1.3 |
500μA |
12V(MAX) |
|
TO-252,,TO-220,,TO-263 |
SPX1582 |
2% |
|
√ |
|
√ |
|
√ |
|
0.56 |
5mA |
1.75V-5.5V |
|
TO-263-5,TO-220-5 |
SPX1587 |
1%,2% |
|
√ |
|
√ |
√ |
√ |
|
1.10 |
5mA |
2.75V-7V |
|
TO-252,,TO-220,,TO-263 |
SPX29300 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.55 |
900μA |
2.75V-10V |
|
TO-263-5,TO-220-5 |
SPX29301 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.55 |
900μA |
2.5V-16V |
|
TO-263-5,,TO-220-5 |
SPX29302 |
1% |
|
|
|
|
|
√ |
|
0.55 |
900μA |
2.5V-16V |
|
TO-263-5,,TO-220-5 |
SPX29303 |
1% |
|
|
|
|
|
√ |
|
0.55 |
900μA |
2.5V-16V |
|
TO-263-5,TO-220-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
5A |
SP1084 |
2% |
√ |
√ |
√ |
|
√ |
√ |
2.85V |
1.3 |
500 |
12V(MAX) |
|
TO-252,,TO-220,,TO-263 |
SPX1581 |
2% |
|
√ |
|
√ |
|
√ |
|
0.5 |
5mA |
1.75V-5.5V |
|
TO-263-5,TO-220-5 |
SPX1585 |
1%,2% |
|
√ |
|
√ |
√ |
√ |
|
1.10 |
5mA |
2.75V-10V |
|
TO-263,TO-220 |
SPX29500 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.37 |
20mA |
2.8V-16V |
|
TO-263-5,,TO-220 |
SPX29501 |
1% |
√ |
√ |
|
√ |
√ |
|
|
0.37 |
20mA |
2.8V-16V |
|
TO-263-5,,TO-220 |
SPX29503 |
1% |
|
|
|
|
|
√ |
|
0.37 |
20mA |
2.8V-16V |
|
TO-263-5,TO-220 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
7A |
SPX1580 |
2% |
|
√ |
|
√ |
|
√ |
|
0.54 |
5mA |
1.75V-5.5V |
|
TO-263-5,,TO-220-5 |
元件型號 |
VOUT精度 |
1.8V |
2.5V |
3.0V |
3.3V |
5V |
可調(diào) |
其它電壓 |
電壓差(V) |
靜態(tài)電流 |
輸入電壓范圍 |
復(fù)位 |
封裝 |
8A |
SPX1584 |
1%,2% |
|
|
|
√ |
√ |
√ |
|
1.10 |
5mA |
2.75V-7V |
|
TO-220 |
|
|
|