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高精度低噪声低压差的CMOS工艺正电压带"GO"功能的1A大电流高速LDO电压调整器CXLD64181基准电压源误差放大器驱动晶体管限制电流电路突入电流防止电路相位补偿电路 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP CXLD64181系列产品是内置GreenOperation(GO)功能，实现了高精度,低噪声,低压差的CMOS工艺正电压,大电流LDO电压调整器IC。内部由基准电压源,误差放大器,驱动晶体管,限制电流电路,突入电流防止电路,相位补偿电路等构成。内置0.2Ω的低导通阻抗驱动晶体管，在输入输出电位差变得极小的范围内能保持1A的输出电流，能实现扩大电池的使用领域。进而用GO功能自动地把自身消耗电流在高速(HS)模式和节省功率(PS)模式之间转换，实现了延长电池使用寿命。此外稳定输出的电容(CL)能使用陶瓷电容等低ESR电容。激光微调能以0.05V的间隔内部设定0.8V～5.0V范围的输出电压。关于保护电路，内置了过电流保护电路和过热保护电路。当输出电流达到限定电流或结温度达到限温度时保护电路开始工作。此外，由于突入电流防止电路能限制当IC启动时(用CE控制IC时)给CL充电的VIN-VOUT之间的电流(突入电流)，能抑制系统启动时由突入电流引起的VIN变动。用CE功能可停止输出转为待机模式，待机模式时能大幅度降低消耗电流。The CXLD64181 series is a highly accurate, low noise, high speed, low dropout, and large current CMOS voltage regulator with GreenOperation function. The series consists of a voltage reference, an error amplifier, a current limiter, an inrush current prevention circuit and a phase compensation circuit plus a driver transistor. With a 0.2Ω on-resistance driver transistor integrated, the ultra low dropout voltage performance with output currents up to 1A greatly extends battery life as does the GreenOperation function which can switch between high speed and power save modes automatically. A low ESR ceramic capacitor can be used for the output stabilization capacitor (CL). Output voltage is selectable in 0.05V increments within the range of 0.8V~5.0V, using laser trimming technologies. An over current protection circuit and a thermal shutdown circuit are built in. The over current protection circuit will operate when the output current reaches its limit current. The thermal shutdown circuit will operate when the junction temperature reaches its limit temperature. The inrush prevention circuit works by controlling the inrush current which charges to CL when the IC starts up. In this way, voltage fluctuations in power supply caused by inrush current during system start up can be minimized. The CE function enables the output to be turned off and the IC becomes a stand-by mode resulting in greatly reduced power consumption. 产品特点 返回TOP
应用范围 返回TOP ●Optical disk drive ●Magnetic disk drive ●Digital still cameras / Camcorders ●Digital audio equipments 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 产品封装图 返回TOP
电路原理图 返回TOP
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单路输出电压调整器 |
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产品名称 |
特点 |
封装 |
VIN MIN V |
VIn MAX V |
VOUT MIN V |
VOUT MAX V |
IOUT mA |
精度(%) |
输入输出电压差 mV |
消耗 电流 μA |
PSRR dB |
温度范围(℃) |
|
输出电流3.0A |
to252 |
- |
12 |
1.5 |
5 |
3000 |
±1.0 |
5000 |
-55～＋125 |
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输出电流1.5A |
to252 |
- |
15 |
1.5 |
5 |
1500 |
±1.0 |
5000 |
-55～＋125 |
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|
1A 大电流 |
sot223 |
4.75 |
7 |
1.8 |
5 |
1000 |
±1.0 |
6000 |
-60～＋150 |
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10V输入电压, 250mA 3端子LDO |
sot25 |
1.8 |
10 |
1.3 |
6 |
250 |
±2.0 |
160 |
2 |
-40～＋85 |
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正电压 |
sot223 sot23 sot89 usp6b |
2 |
20 |
1.8 |
18 |
150 |
±2.0 |
670 |
10 |
-40～＋85 |
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大电流 |
sot223 sot23 sot89 |
2 |
8 |
1.8 |
6 |
400 |
±2.0 |
150 |
8 |
-40～＋85 |
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高速LDO |
sot25 sot89-5 |
2 |
10 |
0.9 |
6 |
300 |
±2.0 |
200 |
70 |
70 |
-40～＋85 |
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高速LDO |
sot25 sot89-5 |
2 |
10 |
0.9 |
6 |
300 |
±2.0 |
200 |
70 |
70 |
-40～＋85 |
|
|
低消耗电流 |
sot23 |
1.8 |
6 |
1.2 |
5 |
250 |
±2.0 |
160 |
1 |
-40～＋85 |
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|
高速Green Operation LDO |
sot25 |
2 |
6 |
0.8 |
5 |
300 |
±2.0 |
5.5 |
70 |
-40～＋85 |
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高速LDO |
sot25 sot89-5 |
2 |
10 |
0.9 |
6 |
300 |
±2.0 |
200 |
25 |
70 |
-40～＋85 |
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高速LDO |
sot25 sot89-5 |
1.5 |
6 |
0.8 |
5 |
700 |
±2.0 |
50 |
35 |
60 |
-40～＋85 |
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高速LDO |
sot25 ssot24 usp4 uspn4 |
2 |
6 |
1.2 |
5 |
150 |
±2.0 |
400 |
35 |
60 |
-40～＋85 |
|
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大电流 |
sot89 to252 |
1.8 |
6 |
1.2 |
3.3 |
500 |
±2.0 |
100 |
8 |
40 |
-40～＋85 |
|
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低消耗电流 |
sot25 ssot24 usp3 usp4 usp6b06 uspn4 |
1.5 |
6 |
0.9 |
5 |
200 |
±2.0 |
320 |
0.8 |
-40～＋85 |
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28V输入 |
sot223 sot23 |
2 |
28 |
2 |
12 |
150 |
±2.0 |
1500 |
5 |
30 |
-40～＋85 |
|
|
高速Green Operation LDO |
sot25 ssot24 |
1.6 |
6 |
0.8 |
4 |
250 |
±2.0 |
80 |
4.5 |
70 |
-40～＋85 |
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低消耗LDO |
ssot24 usp3 |
1.5 |
6 |
0.9 |
4 |
200 |
±2.0 |
200 |
1 |
-40～＋85 |
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高速LDO |
sot25 sot89-5 |
2 |
6 |
0.9 |
5 |
300 |
±2.0 |
200 |
25 |
-40～＋85 |
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GreenOperation 大电流 LDO |
sop8fd sot25 |
1.6 |
6 |
0.8 |
5 |
1000 |
±1.0 |
20 |
8 |
65 |
-40～＋85 |
|
|
高速LDO |
sot5 ssot24 |
1.6 |
6 |
0.8 |
5 |
200 |
±2.0 |
80 |
25 |
70 |
-40～＋85 |
|
|
700mA 高速 |
sot25 sot89-5 |
1.7 |
6 |
0.8 |
5 |
700 |
±1.0 |
40 |
100 |
65 |
-40～＋85 |
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Built-in Inrush Current Protection |
sot25 sot89-5 |
1.6 |
5.5 |
1.2 |
4 |
300 |
±1.0 |
70 |
100 |
80 |
-40～＋85 |
|
|
低输入电压 高速LDO |
sot25 ssot24 |
1.2 |
3.6 |
0.8 |
3 |
150 |
±1.5 |
140 |
33 |
70 |
-40～＋85 |
|
|
高速LDO |
sot25 ssot24 |
2.5 |
6 |
0.8 |
5 |
30 |
±2.0 |
70 |
25 |
70 |
-40～＋85 |
|
|
高速LDO |
sot25 sot89-5 |
1.7 |
6 |
0.8 |
5 |
700 |
±1.0 |
40 |
100 |
65 |
-40～＋85 |
|
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300mA超小型高速 突入电流防止 |
lga4b01 |
1.6 |
5.5 |
1.2 |
4 |
300 |
±1.0 |
60 |
100 |
80 |
-40～＋85 |
|
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2A 高速 |
sop8fd usp6c |
1.7 |
6 |
1.2 |
5 |
2000 |
±1.0 |
170 |
45 |
70 |
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