CXSD62379 是一个高效率的2.5A降压转换器，带有一个高边低RDS（ON）开关。它在4.75V到20V的输入电压范围内工作，提供高达2.5A的连续输出电流，输出电压可调低至0.8V。当负载较轻时，CXSD62379会自动将PWM工作模式改为PFM工作，以最大限度地降低功耗
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产品概述 返回TOP
产品特点 返回TOP
„ 4.75V to 20V Supply Voltage Operating Range
„ Fixed 500kHz Switching Frequency
„ Current-Mode Buck PWM Converter
„ Built-in P-Channel Power MOSFET
„ 2.5A Output Current
„ 0.8V Internal Reference
„ Shutdown Control
„ Thermal-Shutdown and Internal Soft Start
„ Cycle-by-Cycle Current-Limit
„ Short Circuit Protection
„ Under-Voltage Lockout Protection
„ SOP-8 Package
应用范围 返回TOP
„ Distributed Power Systems
„ Battery Charger
„ Palmtop Computers, PDAs
„ DSL Modems
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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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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