2A连续输出电流内置功率MOSFET的单片降压开关模式稳压器CXSD62386/A固定380kHz频率4.5V至24V工作输入

CXSD62386/A是一个内置内置功率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2A连续输出电流，具有良好的负载和线路调节。电流模式操作提供快速的瞬态响应，并简化回路稳定。故障状态保护包括逐周限流、输出短路保护和热关机。在关机模式下，调节器吸取30μA的电源电流

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（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXSD62386/CXSD62386A is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 2A 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 30μA 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 CXSD62386/CXSD62386A requires a minimum number of readily available standard external components. It is available in a SOP-8 & MSOP-10 (FD) package.

   产品特点 返回TOP

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„ 2A Output Current 

„ 0.18Ω Internal Power MOSFET Switch 

„ Stable with Low ESR Output Ceramic Capacitors 

 „ Up to 95% Efficiency 

„ 30μA Shutdown Mode 

„ Fixed 380kHz Frequency 

„ Thermal Shutdown 

„ Cycle-by-Cycle Over Current Protection 

„ Wide 4.5V to 24V Operating Input Range 

„ Output Adjustable from 1.22V to 21.6V(CXSD62386) 

„ Output Adjustable from 0.92V to 21.6V(CXSD62386A) 

„ Available in SOP-8 & MSOP-10 (FD) Package

   应用范围 返回TOP

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„ PC Monitors 

„ DSL Modems 

„ Distributed Power Systems 

„ Pre-Regulator for Linear Regulators

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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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
CXSD62374	4.5	24	1.5	1400	0.92	65	1300	BS, IN, LX,GND, FB, COMP, EN, SS	SOP-8(FD)
CXSD62375	5.5	20	3	300	0.8	100	1000	FB, EN, NC, IN, NC, LX, GND, NC	SOP-8
CXSD62376	5	14	2	500	0.8	100	300	GND, IN, GND, FB, COMP, EN, LX, LX	SOP-8
CXSD62377	4.75	20	2	500	1.2	100	1000	IN, EN, COMP, FB, NC, GND, LX, NC	SOP-8
CXSD62378	4.75	20	3	500	1.2	100	1000	IN,   EN, COMP, FB, NC, GND, LX, NC	SOP-8(FD)
CXSD62379	4.75	20	2.5	500	0.8	100	1000	IN, EN, COMP,   FB, NC, GND, LX, NC	SOP-8
CXSD62380	4.75	20	2	380	1.22	100	1000	NC,   IN, LX, GND, FB, EN, SS	SOP-8
CXSD62381	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)
CXSD62384	3	5.5	2	ADJ	0.8	100	2000	COMP,   GND, EN, IN, LX*2, FQEQ, FB	SOP-8
CXSD62385	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
CXSD62389	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
CXSD62390	7	18	4	400	0.8	90	700	EN, BS, IN,   LX, VCC, GND, FB, COMP	SOP-8(FD)
CXSD62391	6.5	24	2	385	1.22/0.92	90	1500	BS,   IN, LX, GND, FB, COMP, EN, SS	SOP-8
CXSD62392	4.5	28	3	380	1.22	90	1500	BS, IN, LX,   GND, FB, COMP, EN, SS	SOP-8(FD)