CXLD64198系列是内置N沟道FET,可输出400mA的高速LDO电压调整器。即使是低输出电压也可通过超低导通阻抗高效地输出电流。该系列适用于低输入电压以及要求低输入输出电压差的应用。CXLD64198系列内部由基准电压源,误差放大器,驱动三级管,定电流限制电路,FOLD-BACK电路,过热保护电路（TSD）,欠压锁闭电路（UVLO）和相位补偿电路组成。通过激光微调技术，输出电压范围是0.7V～1.8V，0.05V间隔设定。输出电容（CL）可使用低ESR类型的电容。当输出电流达到限制电流或者结温度达到限制温度的时候，过流保护电路（定电流限制电路,FOLD-BACK电路）和过热保护电路（TSD）就会工作，起到保护IC的作用。当VBIAS和VIN端子之间的电压比UVLO电压低的时候，电压调整器的输出就会被关断。在CE端子输入低电平的时候，IC进入待机模式，消耗电流会大幅减小。同时，进入待机模式的时候，输出电容（CL）上的电荷可通过VOUT端子和VSS端子之间的内部开关释放，使电压快速返回到VSS电平
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CXLD64198系列是内置N沟道FET,可输出400mA的高速LDO电压调整器。即使是低输出电压也可通过超低导通阻抗高效地输出电流。该系列适用于低输入电压以及要求低输入输出电压差的应用。CXLD64198系列内部由基准电压源,误差放大器,驱动三级管,定电流限制电路,FOLD-BACK电路,过热保护电路（TSD）,欠压锁闭电路（UVLO）和相位补偿电路组成。通过激光微调技术，输出电压范围是0.7V～1.8V，0.05V间隔设定。输出电容（CL）可使用低ESR类型的电容。当输出电流达到限制电流或者结温度达到限制温度的时候，过流保护电路（定电流限制电路,FOLD-BACK电路）和过热保护电路（TSD）就会工作，起到保护IC的作用。当VBIAS和VIN端子之间的电压比UVLO电压低的时候，电压调整器的输出就会被关断。在CE端子输入低电平的时候，IC进入待机模式，消耗电流会大幅减小。同时，进入待机模式的时候，输出电容（CL）上的电荷可通过VOUT端子和VSS端子之间的内部开关释放，使电压快速返回到VSS电平。The CXLD64198 series is a low voltage input CMOS LDO regulator which provides highly accurate (±20mV) outputs and can supply current efficiently due to its ultra low on-resistance even at low output voltages. The series is ideally suited to the applications which require very low dropout voltage operation and consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a fold back circuit, a thermal shutdown (TSD) circuit, an under voltage lock out (UVLO) circuit, soft-start circuit and a phase compensation circuit. Output voltage is selectable in 0.05V increments within a range of 0.7V to 1.8V using laser trimming technology and ceramic capacitors can be used for the output stabilization capacitor (CL). The over current protection circuit (the current limiter and the fold back circuit) as well as the thermal shutdown circuit (the TSD circuit) are built-in. These two protection circuits will operate when either the output current reaches the current limit level or the junction temperature reaches the temperature limit level. With the built-in UVLO function, the regulator output is forced OFF when the voltage level at the VBIAS pin or the VIN pin falls below the UVLO voltage level. With the soft-start function, the inrush current from VIN to VOUT for charging CL at start-up can be reduced and makes the VIN stable. The CE function enables the output to be turned off and the series to be put in stand-by mode resulting in greatly reduced power consumption. At the time of entering the stand-by mode, the series enables the electric charge at the output capacitor (CL) to be discharged via the internal auto-discharge switch which is located between the VOUT pin and the VSS pin. As a result the VOUT pin quickly returns to the VSS level.
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●Smart phones / Mobile phones
●Portable game consoles
●Digital still cameras / Camcorders
●Digital audio equipment
●Mobile devices / treminals
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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 |
|||
|
输出电流1.5A |
to252 |
- |
15 |
1.5 |
5 |
1500 |
±1.0 |
5000 |
-55～＋125 |
|||
|
1A 大电流 |
sot223 |
4.75 |
7 |
1.8 |
5 |
1000 |
±1.0 |
6000 |
-60～＋150 |
|||
|
10V输入电压, 250mA 3端子LDO |
sot25 |
1.8 |
10 |
1.3 |
6 |
250 |
±2.0 |
160 |
2 |
-40～＋85 |
||
|
正电压 |
sot223 sot23 sot89 usp6b |
2 |
20 |
1.8 |
18 |
150 |
±2.0 |
670 |
10 |
-40～＋85 |
||
|
大电流 |
sot223 sot23 sot89 |
2 |
8 |
1.8 |
6 |
400 |
±2.0 |
150 |
8 |
-40～＋85 |
||
|
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 |
||
|
高速Green Operation LDO |
sot25 |
2 |
6 |
0.8 |
5 |
300 |
±2.0 |
5.5 |
70 |
-40～＋85 |
||
|
高速LDO |
sot25 sot89-5 |
2 |
10 |
0.9 |
6 |
300 |
±2.0 |
200 |
25 |
70 |
-40～＋85 |
|
|
高速LDO |
sot25 sot89-5 |
1.5 |
6 |
0.8 |
5 |
700 |
±2.0 |
50 |
35 |
60 |
-40～＋85 |
|
|
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 |
||
|
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 |
|
|
低消耗LDO |
ssot24 usp3 |
1.5 |
6 |
0.9 |
4 |
200 |
±2.0 |
200 |
1 |
-40～＋85 |
||
|
高速LDO |
sot25 sot89-5 |
2 |
6 |
0.9 |
5 |
300 |
±2.0 |
200 |
25 |
-40～＋85 |
||
|
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 |
|
|
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 |
|
|
2A 高速 |
sop8fd usp6c |
1.7 |
6 |
1.2 |
5 |
2000 |
±1.0 |
170 |
45 |
70 |
-40～＋105 |
|
|
高速LDO |
sot89-5 |
2 |
10 |
0.9 |
5.5 |
500 |
±2.0 |
200 |
35 |
65 |
-40～＋85 |
|
|
带防止突入 电流功能 |
sot25 ssot24 |
1.7 |
5.5 |
1.2 |
3.6 |
200 |
±1.0 |
140 |
45 |
75 |
-40～＋85 |
|
|
附带防止冲击 电流功能 200mA 高速 |
sot25j |
1.7 |
5.5 |
1.2 |
3.3 |
200 |
±1% |
240 |
0.1 |
75 |
-40℃～+85℃ |
|
|
正电压 |
sot25 |
2.1 |
8 |
1.5 |
6 |
1000 |
±2.0 |
50 |
-30～＋80 |
|||
|
10V输入电压, 200mA,3端子LDO |
sot89 |
1.8 |
10 |
1.7 |
6 |
200 |
±2.0 |
160 |
2 |
-40～＋85 |
||
|
低消耗电流 |
sot25 sot89-5 |
2 |
10 |
2 |
6 |
165 |
±2.0 |
3 |
-40～＋85 |
|||
|
负电压 |
sot23 sot89 |
-2.1 |
-10 |
-2.1 |
-6 |
100 |
±2.0 |
380 |
3 |
-40～＋85 |
||
|
无需输出电容 |
sot25 ssot24 |
1.4 |
6 |
1.2 |
5 |
200 |
±1.0 |
150 |
13 |
50 |
-40～＋85 |
|
|
无需输出 电容高速 |
sot25 sot89 |
1.7 |
6 |
1.2 |
5 |
500 |
±1.0 |
15 |
55 |
-40～＋85 |
||
|
超低消耗电流 |
sot25 ssot24 uspq4b04 |
1.4 |
6 |
1.1 |
5 |
150 |
±1.0 |
0.6 |
-40～＋85 |
|||
|
低消耗电流高速 10.5V工作电压 |
sot25 sot89-5 |
1.7 |
10.5 |
1.5 |
8 |
200 |
±1.0 |
190 |
5.5 |
60 |
-40～＋105 |
|
|
对应低输入电压 动作LDO电压调整器 |
sot25 sot89-5 |
1 |
3 |
0.7 |
1.8 |
400 |
38 |
25 |
60 |
-40～＋85 |
||
|
1A,高速 |
sot26w sot89-5 |
0.5 |
3 |
0.5 |
1.8 |
1000 |
1000 |
100 |
75 |
-40～＋85 |
||
|
0.5V低输入电压 启动时间的功能 |
sot26w usp6c |
0.5 |
3 |
0.5 |
1.8 |
1000 |
1000 |
100 |
-40～＋85 |
|||
|
0.5V低输入电压 启动时间的功能 |
sot26w usp6c |
0.5 |
3 |
0.5 |
1.8 |
1000 |
1000 |
100 |
-40～＋85 |
|||
|
输入电压 28V 电压调整器 |
sot223 sot25 |
2 |
28 |
1.8 |
18 |
150 |
±2.0 |
1300 |
50 |
50 |
-40～＋85 |
|
|
36V输入低消 耗电流高速 |
sop8fd usp6c sot89-5 |
4.5 |
36 |
1.8 |
18 |
300 |
±1.0 |
350 |
40 |
65 |
-40～＋105 |
|
|
负电压 |
sot25 usp6c sot89-5 |
-2.4 |
-12.4 |
-0.9 |
-12 |
200 |
±1.5 |
400 |
100 |
45 |
-40～＋85 |
|
|
负电压 |
sot23 sot89 |
-2.4 |
-16 |
-0.9 |
-12 |
200 |
±1.5 |
400 |
100 |
45 |
-40～＋85 |
|
|
双路输出大 电流高速LDO |
usp12b01 |
1.5 |
6 |
0.8 |
5 |
700 |
±2.0 |
50 |
35 |
60 |
-40～＋85 |
|
|
输出ON/OFF可控 28V耐压 |
sot89-5 |
2 |
28 |
2 |
12 |
150 |
±2.0 |
1500 |
5 |
30 |
-40～＋85 |
|
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