| 4A输出电流功率MOSFET的单片降压开关模式稳压器CXSD62390固定400kHz频率7V至18V工作输入 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 目录7.相关产品 产品概述 返回TOP The CXSD62390 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 4A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting, output short circuit protection and thermal shutdown. In shutdown mode the regulator draws 25μA of supply current. Programmable soft-start overwrites the internal soft-start for various requirement of output power up ramp and minimizes the inrush supply current at initial startup. The CXSD62390 requires a minimum number of readily available standard external components. It is available in a DIP-8 and SOP-8 (FD) package.产品特点 返回TOP „ 4A Output Current „ Stable with Low ESR Output Ceramic Capacitors „ Up to 90% Efficiency „ 25μA Shutdown Mode „ Fixed 400kHz Frequency „ Thermal Shutdown „ Cycle-by-Cycle Over Current Protection „ Wide 7V to 18V Operating Input Range „ Available in DIP-8 and SOP-8 (FD) Package 应用范围 返回TOP „ PC Monitors „ DSL Modems „ Distributed Power Systems „ Pre-Regulator for Linear Regulators 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 | |||||||||
| 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) | |
| CXSD62382/3 | 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) | |
| CXSD62386/A | 4.5 | 24 | 2 | 380 | 1.22/0.92 | 90 | 1500 | BS, IN, LX, GND, FB, COMP, EN, SS | SOP-8/MSOP-10(FD) | 
| CXSD62387/A | 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) | 
| CXSD62388/A | 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) | |
                        





