CXSD62389是一个内置功率MOSFET的单片降压开关模式稳压器。它在宽的输入电源范围内实现3A连续输出电流，具有良好的负载和线路调节。宽4.5V至28V的输入范围可适应各种降压应用，包括汽车输入环境中的应用。180μA的工作静态电流允许在电池供电的应用中使用。在较宽的负载范围内，通过降低轻负载条件下的开关频率来降低开关损耗和栅极驱动损耗，可以获得较高的功率转换效率。
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产品概述 返回TOP
产品特点 返回TOP
„ 3A Output Current
„ Wide 4.5V to 28V Operating Input Range
„ Programmable Switching Frequency from 100kHz to 1.5MHz
„ Internal Soft-Start
„ Cycle-by-Cycle Over Current Protection
„ Ceramic Capacitor Stable
„ High-Efficiency Pulse Skipping Mode for Light Load
„ Available in DIP-8, SOP-8 (FD) and TDFN3X3-8 Package
应用范围 返回TOP
„ High Voltage Power Conversion
„ Automotive Systems
„ Industrial Power Systems
„ Distributed Power Systems
„ Battery Powered Systems
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Asynchronous Step Down Converter |
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Part NO. |
Vin(V) min. |
Vin(V) max. |
IOUT (A) |
FSW (kHz) |
FB(V) |
Duty max(%) |
IQ (μA) |
Note |
Package |
|
4.5 |
24 |
1.5 |
1400 |
0.92 |
65 |
1300 |
BS, IN, LX,GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
|
5.5 |
20 |
3 |
300 |
0.8 |
100 |
1000 |
FB, EN, NC, IN, NC, LX, GND, NC |
SOP-8 |
|
|
5 |
14 |
2 |
500 |
0.8 |
100 |
300 |
GND, IN, GND, FB, COMP, EN, LX, LX |
SOP-8 |
|
|
4.75 |
20 |
2 |
500 |
1.2 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8 |
|
|
4.75 |
20 |
3 |
500 |
1.2 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8(FD) |
|
|
4.75 |
20 |
2.5 |
500 |
0.8 |
100 |
1000 |
IN, EN, COMP, FB, NC, GND, LX, NC |
SOP-8 |
|
|
4.75 |
20 |
2 |
380 |
1.22 |
100 |
1000 |
NC, IN, LX, GND, FB, EN, SS |
SOP-8 |
|
|
4.75 |
20 |
2 |
380 |
0.92 |
100 |
1000 |
NC, IN, LX, GND, FB, COMP, EN, SS, NC*3IN, LX, GND, FB, COMP, EN, SS |
SOP-8/MSOP-10(FD) |
|
|
4.75 |
20 |
3 |
380 |
1.22/0.92 |
100 |
1000 |
NC, IN, LX, GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
|
3 |
5.5 |
2 |
ADJ |
0.8 |
100 |
2000 |
COMP, GND, EN, IN, LX*2, FQEQ, FB |
SOP-8 |
|
|
3 |
5.5 |
4 |
ADJ |
0.8 |
100 |
2000 |
COMP, GND, EN, IN, LX, LX, FQEQ, FB |
SOP-8(FD) |
|
|
4.5 |
24 |
2 |
380 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8/MSOP-10(FD) |
|
|
4.5 |
24 |
3 |
380 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-(FD)/DIP-8/MSOP-10(FD) |
|
|
4.75 |
24 |
2 |
380 |
1.22/0.92 |
90 |
1500 |
SS/NC, BS, IN, LX, GND, FB, COMP, EN |
SOP-8 |
|
|
4.5 |
28 |
3 |
ADJ |
0.8 |
90 |
170 |
LX, EN, COMP, FB, GND, FREQ, IN, BS Dutymax = 1 - (TOFFmin * 900K) |
SOP-8(FD)/DIP-8/TDFN3X3-8 |
|
|
7 |
18 |
4 |
400 |
0.8 |
90 |
700 |
EN, BS, IN, LX, VCC, GND, FB, COMP |
SOP-8(FD) |
|
|
6.5 |
24 |
2 |
385 |
1.22/0.92 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8 |
|
|
4.5 |
28 |
3 |
380 |
1.22 |
90 |
1500 |
BS, IN, LX, GND, FB, COMP, EN, SS |
SOP-8(FD) |
|
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