3A连续输出电流内置功率MOSFET的单片降压开关模式稳压器CXSD62389 4.5V至28V工作输入

The CXSD62389 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation. The wide 4.5V to 28V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 180μA operational quiescent current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 1.5MHz, the CXSD62389 is able to prevent EMI (ELECTROMAGNETIC Interference) noise problems, such as those found in AM radio and ADSL applications. The CXSD62389 requires a minimum number of readily available standard external components. It is available in a DIP-8, SOP-8 (FD) and TDFN3X3-8 package.

产品特点 返回TOPmJe嘉泰姆

„ 3A Output Current mJe嘉泰姆

„ Wide 4.5V to 28V Operating Input Range mJe嘉泰姆

„ Programmable Switching Frequency from 100kHz to 1.5MHz mJe嘉泰姆

„ Internal Soft-Start mJe嘉泰姆

„ Cycle-by-Cycle Over Current Protection mJe嘉泰姆

„ Ceramic Capacitor Stable mJe嘉泰姆

„ High-Efficiency Pulse Skipping Mode for Light Load mJe嘉泰姆

„ Available in DIP-8, SOP-8 (FD) and TDFN3X3-8 PackagemJe嘉泰姆

应用范围 返回TOPmJe嘉泰姆

„ High Voltage Power Conversion mJe嘉泰姆

„ Automotive Systems mJe嘉泰姆

„ Industrial Power Systems mJe嘉泰姆

„ Distributed Power Systems mJe嘉泰姆

„ Battery Powered SystemsmJe嘉泰姆

技术规格书（产品PDF) 返回TOP mJe嘉泰姆

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！mJe嘉泰姆

QQ截图20160419174301.jpg mJe嘉泰姆

产品封装图 返回TOPmJe嘉泰姆

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电路原理图 返回TOPmJe嘉泰姆

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Asynchronous Step Down ConvertermJe嘉泰姆
Part NO.mJe嘉泰姆	Vin(V)mJe嘉泰姆 min.mJe嘉泰姆	Vin(V)mJe嘉泰姆 max.mJe嘉泰姆	IOUTmJe嘉泰姆 (A)mJe嘉泰姆	FSWmJe嘉泰姆 (kHz)mJe嘉泰姆	FB(V)mJe嘉泰姆	DutymJe嘉泰姆 max(%)mJe嘉泰姆	IQmJe嘉泰姆 (μA)mJe嘉泰姆	NotemJe嘉泰姆	PackagemJe嘉泰姆
CXSD62374mJe嘉泰姆	4.5mJe嘉泰姆	24mJe嘉泰姆	1.5mJe嘉泰姆	1400mJe嘉泰姆	0.92mJe嘉泰姆	65mJe嘉泰姆	1300mJe嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆
CXSD62375mJe嘉泰姆	5.5mJe嘉泰姆	20mJe嘉泰姆	3mJe嘉泰姆	300mJe嘉泰姆	0.8mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62376mJe嘉泰姆	5mJe嘉泰姆	14mJe嘉泰姆	2mJe嘉泰姆	500mJe嘉泰姆	0.8mJe嘉泰姆	100mJe嘉泰姆	300mJe嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62377mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	2mJe嘉泰姆	500mJe嘉泰姆	1.2mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62378mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	3mJe嘉泰姆	500mJe嘉泰姆	1.2mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆
CXSD62379mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	2.5mJe嘉泰姆	500mJe嘉泰姆	0.8mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62380mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	2mJe嘉泰姆	380mJe嘉泰姆	1.22mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	NC, IN, LX, GND, FB, EN, SSmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62381mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	2mJe嘉泰姆	380mJe嘉泰姆	0.92mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, mJe嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8/MSOP-10(FD)mJe嘉泰姆
CXSD62382/3mJe嘉泰姆	4.75mJe嘉泰姆	20mJe嘉泰姆	3mJe嘉泰姆	380mJe嘉泰姆	1.22/0.92mJe嘉泰姆	100mJe嘉泰姆	1000mJe嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆
CXSD62384mJe嘉泰姆	3mJe嘉泰姆	5.5mJe嘉泰姆	2mJe嘉泰姆	ADJmJe嘉泰姆	0.8mJe嘉泰姆	100mJe嘉泰姆	2000mJe嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62385mJe嘉泰姆	3mJe嘉泰姆	5.5mJe嘉泰姆	4mJe嘉泰姆	ADJmJe嘉泰姆	0.8mJe嘉泰姆	100mJe嘉泰姆	2000mJe嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆
CXSD62386/AmJe嘉泰姆	4.5mJe嘉泰姆	24mJe嘉泰姆	2mJe嘉泰姆	380mJe嘉泰姆	1.22/0.92mJe嘉泰姆	90mJe嘉泰姆	1500mJe嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8/MSOP-10(FD)mJe嘉泰姆
CXSD62387/AmJe嘉泰姆	4.5mJe嘉泰姆	24mJe嘉泰姆	3mJe嘉泰姆	380mJe嘉泰姆	1.22/0.92mJe嘉泰姆	90mJe嘉泰姆	1500mJe嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)mJe嘉泰姆
CXSD62388/AmJe嘉泰姆	4.75mJe嘉泰姆	24mJe嘉泰姆	2mJe嘉泰姆	380mJe嘉泰姆	1.22/0.92mJe嘉泰姆	90mJe嘉泰姆	1500mJe嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62389mJe嘉泰姆	4.5mJe嘉泰姆	28mJe嘉泰姆	3mJe嘉泰姆	ADJmJe嘉泰姆	0.8mJe嘉泰姆	90mJe嘉泰姆	170mJe嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSmJe嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)mJe嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8mJe嘉泰姆
CXSD62390mJe嘉泰姆	7mJe嘉泰姆	18mJe嘉泰姆	4mJe嘉泰姆	400mJe嘉泰姆	0.8mJe嘉泰姆	90mJe嘉泰姆	700mJe嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆
CXSD62391mJe嘉泰姆	6.5mJe嘉泰姆	24mJe嘉泰姆	2mJe嘉泰姆	385mJe嘉泰姆	1.22/0.92mJe嘉泰姆	90mJe嘉泰姆	1500mJe嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8mJe嘉泰姆
CXSD62392mJe嘉泰姆	4.5mJe嘉泰姆	28mJe嘉泰姆	3mJe嘉泰姆	380mJe嘉泰姆	1.22mJe嘉泰姆	90mJe嘉泰姆	1500mJe嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSmJe嘉泰姆	SOP-8(FD)mJe嘉泰姆

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