CXLD6475双、低噪音、低损耗调节器至少300毫安的连续输出电流。输出电压
因为每个调节器都是通过微调独立设置的。输出电压可在1.2V范围内以100mV
步进选择至3.5V。典型输出噪声为47uVrms，PSRR为73dB100赫兹。CXLD6475
包括两个独立的逻辑-受控关闭输入，并允许每个独立转动调节器。
CXLD6475包括高精度电压基准、误差放大器、限流电路和输出驱动模块CXLD6475
具有良好的负载和线路瞬态响应保证芯片稳定性的温度特性以及电力系统。并采用
修边技术保证输出电压精度在±2%以内
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（产品PDF文档）
5.产品封装图 6.电路原理图 7.功能概述 8.相关产品
一,产品概述(General Description) 
CXLD6475 dual, low-noise, low-dropout regulator delivers
at least 300mA of continuous output current. The output voltage
for each regulator is set independently by trimming. Output
voltages are selectable in 100mV steps within a range of 1.2V
to 3.5V.Typical output noise is 47uVrms, and PSRR is 73dB at
100Hz. The CXLD6475 includes two independent logic-
controlled shutdown inputs and allows the output of each
regulator to be turned of independently.
CXLD6475 includes high accuracy voltage reference, error
amplifier, current limit circuit and output driver module CXLD6475
has excellent load and line transient response and good
temperature characteristics, which can assure the stability of chip
and power system. And it uses trimming technique to guarantee
output voltage accuracy within±2%.
CXLD6475 is available in SOT-23-6 package which is lead(Pb)-free
二.产品特点(Features)
Two low dropout voltage regulators
300mA output current for each LDO
25uA operating supply current per LDO
Low 47uVRMS output noise
Standby Mode: 0.1uA
Low 160mV dropout at 300mA load
73dB PSRR at 100Hz
Excellent Line regulation: 0.05%/V
Independent Shutdown controls
1.2V to 3.5V Factory-Preset Output
Output Current Limit
Highly Accurate: ±2% (±1% customized)
三,应用范围 (Applications)
Cellular phones
Cordless phones and radio
communication equipment
Battery Powered equipment
Notebook and hand-hold equipment
Wireless LAN
GPS receivers
四.技术规格书下载（产品PDF）
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！
五,产品封装图 (Package)
六.电路原理图
七,功能概述
|
Symbol |
Parameter |
Conditions |
Min |
Typ |
Max |
Units |
|
Vin |
Input Voltage |
6 |
V |
|||
|
Vout |
Output Voltage |
Vin=Set Vout+1V 1mA≤Iout≤30mA |
Vout x0.98 |
Vout1 |
Vout X1.02 |
V |
|
Iout (Max.) |
Maximun Output Current |
Vin-Vout=1V |
300 |
mA |
||
|
Vdrop |
Dropout Voltage,Vout≥2.8V |
Iout=100mA |
50 |
80 |
mV |
|
|
Iout=300mA |
160 |
220 |
mV |
|||
|
∆Vout ∆Vin ⋅Vout |
Line Regulation |
Iout=40mA 2.8V≤Vin≤6V |
0.05 |
0.2 |
%/V |
|
|
∆Vout / ∆Iout |
Load Regulation |
Vin=Set Vout+1V 1mA≤Iout≤300mA |
30 |
50 |
mV |
|
|
Iss |
Supply Current |
Vin=Set Vout+1V |
50 |
100 |
uA |
|
|
Istandby |
Supply Current (Standby) |
Vin=Set Vout+1V Vce=GND |
0.1 |
1.0 |
uA |
|
|
∆Vout ∆T ⋅Vout |
Output Voltage Temperature Coefficiency |
Iout=30mA |
±100 |
ppm/°C |
||
|
PSRR |
Ripple Rejection |
F=100Hz, Ripple=0.5Vp-p Vin=Set Vout+1V |
70 |
dB |
||
|
Ilim |
Short Current Limit |
Vout=0V |
500 |
mA |
||
|
Vceh |
CE Input Voltage “H” |
1.5 |
Vin |
V |
||
|
Vcel |
CE Input Voltage “L” |
0 |
0.25 |
V |
||
|
en |
Output Noise |
BW=10Hz~100kHz |
47 |
uVrms |
八,相关芯片选择指南
|
CMOS型低压差线性稳压器(CMOS Type LDO Linear Regulator ) |
||||||||
|
Part No. |
VIN |
VOUT |
Accu. |
PSRR |
IQ |
IOUT(Max) |
Package |
Features |
|
36V |
3.3,5,12V, ADJ |
±2% |
10μA |
150mA |
SOT89-3 TO92 |
HV Three-Terminal Positive Regulator |
||
|
1.5~8V |
1.1~5.5V |
±2% |
1μA |
200mA |
SOT23-3 SOT89-3 TO92 |
Low Power Consumption,Low Dropout Voltage |
||
|
Max 16V |
1.1~5.0V |
±2% |
2μA |
250mA |
SOT23-3 SOT23-5 SOT89-3 |
Low Power Consumption,Low Dropout Voltage |
||
|
Max 16V |
1.2~5.0V |
±2% |
3μA |
250mA |
SOT23-3 SOT89-3 |
Low Power Consumption,Low Dropout Voltage |
||
|
Max 8V |
1.2~6V |
±2%/±1% |
3μA |
250mA |
SOT89-3 SOT23-3 TO92 |
Low Dropout Voltage, Low lq |
||
|
Max 6V |
2~6V |
±2% |
74dB@100Hz |
35μA |
300mA |
DFN1x1 - 4L SC70-5,SOT23-5 |
Low Noise, High PSRR |
|
|
Max 6V |
1.5~4.5V |
±2% |
73dB@100Hz |
35μA |
300mA |
DFN1x1 - 4L SOT23-5 SC70-5,SOT23-3 |
Low Noise, High PSRR, Output Discharge |
|
|
Max 6V |
1.0~4.5V |
±2% |
70dB@100Hz |
35μA |
300mA |
SOT23-5 SC70-5 |
Low Noise, High PSRR, Output Discharge |
|
|
2~6V |
1.2~5V,ADJ |
±2%/±1% |
80dB@217Hz 78dB@1KHz |
90μA |
300mA |
SOT23-5 SC70-5 |
RF LDO, Ultra Low Noise, High PSSR, Output Discharge |
|
|
2~6V |
1.2~5V |
±2%/±1% |
78dB@217Hz |
90μA |
300mA |
SOT23-3 SOT89-3 SOT223-3 |
Ultra Fast, Ultra Low Noise, High PSSR, Output Discharge |
|
|
2~6V |
1.2~5V |
±2%/±1% |
78dB@217Hz |
90μA |
300mA |
SOT23-5 SC70-5 |
RF LDO, Ultra Low Noise, High PSSR, Output Discharge |
|
|
2~6V |
1.2~5V |
±2%/±1% |
70dB@1KHz |
90μA x 2 |
300mA x 2 |
SOT23-6 ESOP8 |
Dual Channels LDO, Output Discharge |
|
|
Max 6V |
1.5~4.5V |
±2%/±1% |
73dB@100Hz |
20μA x 2 |
300mA x 2 |
SOT23-6 |
Dual Channels LDO, Output Discharge |
|
|
4.75~40V |
1.8~10V |
±2% |
6μA |
500mA |
SOT89-3 |
HV, Low Power Consumption, Low Dropout Voltage |
||
|
4.75~40V |
1.8~10V |
±2% |
6μA |
500mA |
SOT89-3 |
HV, Low Power Consumption, Low Dropout Voltage |
||
|
Max 8V |
1.2~4.5V |
±2%/±1% |
66dB@100Hz |
75μA |
500mA |
SOT89-3 SOT23-5 |
Low Noise, High PSRR,Output Discharge |
|
|
Max 6V |
1.5~4.5V |
±2% |
73dB@100Hz |
20μA |
500mA |
SOT89-3 |
Low Noise, Low Dropout, High PSRR, Output Discharge |
|
|
Max 6V |
1.2~4.5V |
±2% |
72dB@1KHz |
30μA |
500mA |
SC70-5 SOT23-5 |
Low Noise, High PSRR Fast Response, Output Discharge |
|
|
Max 6V |
1.2~4.5V |
±2% |
72dB@1KHz |
30μA x 2 |
500mA x 2 |
SOT23-6 |
Dual Channels LDO |
|
|
2.5~6V |
1.0~5.0V |
±2%/±1% |
70dB@100Hz |
70μA |
1A |
SOT223-3 TO252-3 |
1A Very Low Dropout Low Noise High PSRR |
|
|
Max 6V |
1.2~5.0V |
±2% |
100μA |
1A |
SOT89-3 SOT23-5 |
Low Noise, Low Dropout, High PSRR |
||
|
Max 6V |
1.2~5.0V |
±2% |
100μA |
1.5A |
SOT223 |
Low Noise, Low Dropout, High PSRR |
||
|
Max 18V |
1.2~5.0V |
±2% |
3μA |
2A |
SOT223 TO252 |
2A Low Dropout , Low lq |
||
|
Max 18V |
1.2~5.0V |
±2% |
3μA |
2A |
SOT223 TO252 |
2A Low Dropout , Low lq |
||
