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TOPWBj嘉泰姆

„ 3A Output Current WBj嘉泰姆

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

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

„ Internal Soft-Start WBj嘉泰姆

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

„ Ceramic Capacitor Stable WBj嘉泰姆

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

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

应用范围 返回TOPWBj嘉泰姆

„ High Voltage Power Conversion WBj嘉泰姆

„ Automotive Systems WBj嘉泰姆

„ Industrial Power Systems WBj嘉泰姆

„ Distributed Power Systems WBj嘉泰姆

„ Battery Powered SystemsWBj嘉泰姆

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Asynchronous Step Down ConverterWBj嘉泰姆
Part NO.WBj嘉泰姆	Vin(V)WBj嘉泰姆 min.WBj嘉泰姆	Vin(V)WBj嘉泰姆 max.WBj嘉泰姆	IOUTWBj嘉泰姆 (A)WBj嘉泰姆	FSWWBj嘉泰姆 (kHz)WBj嘉泰姆	FB(V)WBj嘉泰姆	DutyWBj嘉泰姆 max(%)WBj嘉泰姆	IQWBj嘉泰姆 (μA)WBj嘉泰姆	NoteWBj嘉泰姆	PackageWBj嘉泰姆
CXSD62374WBj嘉泰姆	4.5WBj嘉泰姆	24WBj嘉泰姆	1.5WBj嘉泰姆	1400WBj嘉泰姆	0.92WBj嘉泰姆	65WBj嘉泰姆	1300WBj嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆
CXSD62375WBj嘉泰姆	5.5WBj嘉泰姆	20WBj嘉泰姆	3WBj嘉泰姆	300WBj嘉泰姆	0.8WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62376WBj嘉泰姆	5WBj嘉泰姆	14WBj嘉泰姆	2WBj嘉泰姆	500WBj嘉泰姆	0.8WBj嘉泰姆	100WBj嘉泰姆	300WBj嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62377WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	2WBj嘉泰姆	500WBj嘉泰姆	1.2WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62378WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	3WBj嘉泰姆	500WBj嘉泰姆	1.2WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆
CXSD62379WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	2.5WBj嘉泰姆	500WBj嘉泰姆	0.8WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62380WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	2WBj嘉泰姆	380WBj嘉泰姆	1.22WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	NC, IN, LX, GND, FB, EN, SSWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62381WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	2WBj嘉泰姆	380WBj嘉泰姆	0.92WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, WBj嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8/MSOP-10(FD)WBj嘉泰姆
CXSD62382/3WBj嘉泰姆	4.75WBj嘉泰姆	20WBj嘉泰姆	3WBj嘉泰姆	380WBj嘉泰姆	1.22/0.92WBj嘉泰姆	100WBj嘉泰姆	1000WBj嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆
CXSD62384WBj嘉泰姆	3WBj嘉泰姆	5.5WBj嘉泰姆	2WBj嘉泰姆	ADJWBj嘉泰姆	0.8WBj嘉泰姆	100WBj嘉泰姆	2000WBj嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62385WBj嘉泰姆	3WBj嘉泰姆	5.5WBj嘉泰姆	4WBj嘉泰姆	ADJWBj嘉泰姆	0.8WBj嘉泰姆	100WBj嘉泰姆	2000WBj嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆
CXSD62386/AWBj嘉泰姆	4.5WBj嘉泰姆	24WBj嘉泰姆	2WBj嘉泰姆	380WBj嘉泰姆	1.22/0.92WBj嘉泰姆	90WBj嘉泰姆	1500WBj嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8/MSOP-10(FD)WBj嘉泰姆
CXSD62387/AWBj嘉泰姆	4.5WBj嘉泰姆	24WBj嘉泰姆	3WBj嘉泰姆	380WBj嘉泰姆	1.22/0.92WBj嘉泰姆	90WBj嘉泰姆	1500WBj嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)WBj嘉泰姆
CXSD62388/AWBj嘉泰姆	4.75WBj嘉泰姆	24WBj嘉泰姆	2WBj嘉泰姆	380WBj嘉泰姆	1.22/0.92WBj嘉泰姆	90WBj嘉泰姆	1500WBj嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62389WBj嘉泰姆	4.5WBj嘉泰姆	28WBj嘉泰姆	3WBj嘉泰姆	ADJWBj嘉泰姆	0.8WBj嘉泰姆	90WBj嘉泰姆	170WBj嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSWBj嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)WBj嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8WBj嘉泰姆
CXSD62390WBj嘉泰姆	7WBj嘉泰姆	18WBj嘉泰姆	4WBj嘉泰姆	400WBj嘉泰姆	0.8WBj嘉泰姆	90WBj嘉泰姆	700WBj嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆
CXSD62391WBj嘉泰姆	6.5WBj嘉泰姆	24WBj嘉泰姆	2WBj嘉泰姆	385WBj嘉泰姆	1.22/0.92WBj嘉泰姆	90WBj嘉泰姆	1500WBj嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8WBj嘉泰姆
CXSD62392WBj嘉泰姆	4.5WBj嘉泰姆	28WBj嘉泰姆	3WBj嘉泰姆	380WBj嘉泰姆	1.22WBj嘉泰姆	90WBj嘉泰姆	1500WBj嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSWBj嘉泰姆	SOP-8(FD)WBj嘉泰姆

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