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TOP5oa嘉泰姆

„ 3A Output Current 5oa嘉泰姆

„ Wide 4.5V to 28V Operating Input Range 5oa嘉泰姆

„ Programmable Switching Frequency from 100kHz to 1.5MHz 5oa嘉泰姆

„ Internal Soft-Start 5oa嘉泰姆

„ Cycle-by-Cycle Over Current Protection 5oa嘉泰姆

„ Ceramic Capacitor Stable 5oa嘉泰姆

„ High-Efficiency Pulse Skipping Mode for Light Load 5oa嘉泰姆

„ Available in DIP-8, SOP-8 (FD) and TDFN3X3-8 Package5oa嘉泰姆

应用范围 返回TOP5oa嘉泰姆

„ High Voltage Power Conversion 5oa嘉泰姆

„ Automotive Systems 5oa嘉泰姆

„ Industrial Power Systems 5oa嘉泰姆

„ Distributed Power Systems 5oa嘉泰姆

„ Battery Powered Systems5oa嘉泰姆

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Asynchronous Step Down Converter5oa嘉泰姆
Part NO.5oa嘉泰姆	Vin(V)5oa嘉泰姆 min.5oa嘉泰姆	Vin(V)5oa嘉泰姆 max.5oa嘉泰姆	IOUT5oa嘉泰姆 (A)5oa嘉泰姆	FSW5oa嘉泰姆 (kHz)5oa嘉泰姆	FB(V)5oa嘉泰姆	Duty5oa嘉泰姆 max(%)5oa嘉泰姆	IQ5oa嘉泰姆 (μA)5oa嘉泰姆	Note5oa嘉泰姆	Package5oa嘉泰姆
CXSD623745oa嘉泰姆	4.55oa嘉泰姆	245oa嘉泰姆	1.55oa嘉泰姆	14005oa嘉泰姆	0.925oa嘉泰姆	655oa嘉泰姆	13005oa嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆
CXSD623755oa嘉泰姆	5.55oa嘉泰姆	205oa嘉泰姆	35oa嘉泰姆	3005oa嘉泰姆	0.85oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NC5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623765oa嘉泰姆	55oa嘉泰姆	145oa嘉泰姆	25oa嘉泰姆	5005oa嘉泰姆	0.85oa嘉泰姆	1005oa嘉泰姆	3005oa嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LX5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623775oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	25oa嘉泰姆	5005oa嘉泰姆	1.25oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623785oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	35oa嘉泰姆	5005oa嘉泰姆	1.25oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆
CXSD623795oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	2.55oa嘉泰姆	5005oa嘉泰姆	0.85oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623805oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	25oa嘉泰姆	3805oa嘉泰姆	1.225oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	NC, IN, LX, GND, FB, EN, SS5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623815oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	25oa嘉泰姆	3805oa嘉泰姆	0.925oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, 5oa嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-8/MSOP-10(FD)5oa嘉泰姆
CXSD62382/35oa嘉泰姆	4.755oa嘉泰姆	205oa嘉泰姆	35oa嘉泰姆	3805oa嘉泰姆	1.22/0.925oa嘉泰姆	1005oa嘉泰姆	10005oa嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆
CXSD623845oa嘉泰姆	35oa嘉泰姆	5.55oa嘉泰姆	25oa嘉泰姆	ADJ5oa嘉泰姆	0.85oa嘉泰姆	1005oa嘉泰姆	20005oa嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FB5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623855oa嘉泰姆	35oa嘉泰姆	5.55oa嘉泰姆	45oa嘉泰姆	ADJ5oa嘉泰姆	0.85oa嘉泰姆	1005oa嘉泰姆	20005oa嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FB5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆
CXSD62386/A5oa嘉泰姆	4.55oa嘉泰姆	245oa嘉泰姆	25oa嘉泰姆	3805oa嘉泰姆	1.22/0.925oa嘉泰姆	905oa嘉泰姆	15005oa嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-8/MSOP-10(FD)5oa嘉泰姆
CXSD62387/A5oa嘉泰姆	4.55oa嘉泰姆	245oa嘉泰姆	35oa嘉泰姆	3805oa嘉泰姆	1.22/0.925oa嘉泰姆	905oa嘉泰姆	15005oa嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)5oa嘉泰姆
CXSD62388/A5oa嘉泰姆	4.755oa嘉泰姆	245oa嘉泰姆	25oa嘉泰姆	3805oa嘉泰姆	1.22/0.925oa嘉泰姆	905oa嘉泰姆	15005oa嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, EN5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623895oa嘉泰姆	4.55oa嘉泰姆	285oa嘉泰姆	35oa嘉泰姆	ADJ5oa嘉泰姆	0.85oa嘉泰姆	905oa嘉泰姆	1705oa嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BS5oa嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)5oa嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-85oa嘉泰姆
CXSD623905oa嘉泰姆	75oa嘉泰姆	185oa嘉泰姆	45oa嘉泰姆	4005oa嘉泰姆	0.85oa嘉泰姆	905oa嘉泰姆	7005oa嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMP5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆
CXSD623915oa嘉泰姆	6.55oa嘉泰姆	245oa嘉泰姆	25oa嘉泰姆	3855oa嘉泰姆	1.22/0.925oa嘉泰姆	905oa嘉泰姆	15005oa嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-85oa嘉泰姆
CXSD623925oa嘉泰姆	4.55oa嘉泰姆	285oa嘉泰姆	35oa嘉泰姆	3805oa嘉泰姆	1.225oa嘉泰姆	905oa嘉泰姆	15005oa嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS5oa嘉泰姆	SOP-8(FD)5oa嘉泰姆

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