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CXLD64171相位补偿电路误差放大器电流限制器GO功能通过在高速和节能两种不同模式之间的自动切换 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP CXLD64171系列是高精度,低噪声,高速度,带有Green Operation（GO）功能，采用CMOS生产工艺的低压差LDO电压调整器。这个系列内部包括一个参考电压源，一个误差放大器，电流限制器，和相位补偿电路。根据负载电流大小值的变化，GO功能通过在高速和节能两种不同模式之间的自动切换，来实现高速,低功耗,高效率。对应GO功能切换点的负载电流值已经在芯片内部被设定。如果仅需要高速工作模式时，通过在芯片的GO引脚端子输入高电平就可以实现。因此芯片在不同的工作应用条件下有着合适的消耗电流。CE功能允许电压调整器的输出被关断，可极大的减少功率损耗。对于CXLD64171B/D系列,在芯片内部导通输出引脚端VOUT和接地端子VSS之间开关，通过芯片内部的自动放电回路将输出端电容CL中的电放光，使得输出端VOUT的电压迅速变为零。CXLD64171系列兼容低ESR的陶瓷电容。CXLD64171系列的电压输出范围是从0.8V～5.0V，采用激光微调技术，以0.05V为间隔自由设定。CXLD64171系列的电流限制器Foldback电路可为电流限制器和输出引脚提供短路保护。The CXLD64171 series are precise, low noise, high speed, and low dropout regulators with green operation (GO) function. They are fabricated using Torex’s CMOS process. Performance features of the series include high ripple rejection and low dropout voltage, and the series include a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit. Output voltage is selectable in 0.05V increments within a range of 1.2V~5.0V, using laser trimming technologies. The series' output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. GO provides high speed operation, low power consumption and high efficiencies by automatically switching between a high speed mode (HS) and a power save mode (PS) depending upon the load current level. The switching point of the GO to the output current is being fixed inside the IC. The IC operates when the GO pin is low-level. When only high-speed operation is required, it can be fixed by inputting a high level signal to the GO pin, thus providing operating conditions with the most suitable level of supply current for the application. The CE function enables the output to be turned off resulting in greatly reduced power consumption. In this state, with the CXLD64171B series, the IC turns on the internal switch located between the VOUT and VSS pins. This short enables the electric charge at the output capacitor (CL) to be discharged via the internal auto-discharge resistance, and as a result the VOUT pin quickly returns to the VSS level. The constant current limit circuit and the current limiter's foldback circuit also operate as a short circuit protection for the output current limiter and the output pin. 产品特点 返回TOP 应用范围 返回TOP ●Smart phones / Mobile phones ●Portable game consoles ●Digital still cameras / Camcorders ●Digital audio equipment ●Mobile devices / terminals 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 |
|
|
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 |
|
|
大电流 |
sot89 to252 |
1.8 |
6 |
1.2 |
3.3 |
500 |
±2.0 |
100 |
8 |
40 |
-40～＋85 |
|
|
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 |
|
|
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 |
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