3A输出电流模式Buck-PWM转换器4.75V至20V电源电压CXSD62378固定500kHz开关频率热关机和内部软启动

The CXSD62378 is a high efficiency, 3A buck converter with a high-side low RDS(ON) switch. It operates from 4.75V to 20V input voltage range, and provides up to 3A continuous output current with the output voltage adjustable down to 1.2V. Whenever the load is light, the CXSD62378 automatically change the PWM operation mode to PFM operation to minimize the power consumption. Hence it is suitable for battery-powered devices. It uses a fixed switching frequency up to 500kHz. When a short circuit is detected on the output, the device change switching frequency to 50kHz to protect IC from damage. The GCXSD62378is available in a SOP-8 (FD) package.

产品特点 返回TOP2Db嘉泰姆

„ 4.75V to 20V Supply Voltage Operating Range 2Db嘉泰姆

„ Fixed 500kHz Switching Frequency 2Db嘉泰姆

„ Current-Mode Buck PWM Converter 2Db嘉泰姆

„ Built-in P-Channel Power MOSFET 2Db嘉泰姆

„ 3A Output Current 2Db嘉泰姆

„ 1.2V Internal Reference 2Db嘉泰姆

„ Shutdown Control 2Db嘉泰姆

„ Thermal-Shutdown and Internal Soft Start 2Db嘉泰姆

„ Cycle-by-Cycle Current-Limit 2Db嘉泰姆

„ Short Circuit Protection 2Db嘉泰姆

„ Under-Voltage Lockout Protection2Db嘉泰姆

„ RoHs Compliant 2Db嘉泰姆

„ SOP-8 (FD) Package2Db嘉泰姆

应用范围 返回TOP2Db嘉泰姆

„ Distributed Power Systems 2Db嘉泰姆

„ Battery Charger 2Db嘉泰姆

„ Palmtop Computers, PDAs 2Db嘉泰姆

„ DSL Modems2Db嘉泰姆

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Asynchronous Step Down Converter2Db嘉泰姆
Part NO.2Db嘉泰姆	Vin(V)2Db嘉泰姆 min.2Db嘉泰姆	Vin(V)2Db嘉泰姆 max.2Db嘉泰姆	IOUT2Db嘉泰姆 (A)2Db嘉泰姆	FSW2Db嘉泰姆 (kHz)2Db嘉泰姆	FB(V)2Db嘉泰姆	Duty2Db嘉泰姆 max(%)2Db嘉泰姆	IQ2Db嘉泰姆 (μA)2Db嘉泰姆	Note2Db嘉泰姆	Package2Db嘉泰姆
CXSD623742Db嘉泰姆	4.52Db嘉泰姆	242Db嘉泰姆	1.52Db嘉泰姆	14002Db嘉泰姆	0.922Db嘉泰姆	652Db嘉泰姆	13002Db嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆
CXSD623752Db嘉泰姆	5.52Db嘉泰姆	202Db嘉泰姆	32Db嘉泰姆	3002Db嘉泰姆	0.82Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NC2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623762Db嘉泰姆	52Db嘉泰姆	142Db嘉泰姆	22Db嘉泰姆	5002Db嘉泰姆	0.82Db嘉泰姆	1002Db嘉泰姆	3002Db嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LX2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623772Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	22Db嘉泰姆	5002Db嘉泰姆	1.22Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623782Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	32Db嘉泰姆	5002Db嘉泰姆	1.22Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆
CXSD623792Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	2.52Db嘉泰姆	5002Db嘉泰姆	0.82Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623802Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	22Db嘉泰姆	3802Db嘉泰姆	1.222Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	NC, IN, LX, GND, FB, EN, SS2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623812Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	22Db嘉泰姆	3802Db嘉泰姆	0.922Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, 2Db嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-8/MSOP-10(FD)2Db嘉泰姆
CXSD62382/32Db嘉泰姆	4.752Db嘉泰姆	202Db嘉泰姆	32Db嘉泰姆	3802Db嘉泰姆	1.22/0.922Db嘉泰姆	1002Db嘉泰姆	10002Db嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆
CXSD623842Db嘉泰姆	32Db嘉泰姆	5.52Db嘉泰姆	22Db嘉泰姆	ADJ2Db嘉泰姆	0.82Db嘉泰姆	1002Db嘉泰姆	20002Db嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FB2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623852Db嘉泰姆	32Db嘉泰姆	5.52Db嘉泰姆	42Db嘉泰姆	ADJ2Db嘉泰姆	0.82Db嘉泰姆	1002Db嘉泰姆	20002Db嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FB2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆
CXSD62386/A2Db嘉泰姆	4.52Db嘉泰姆	242Db嘉泰姆	22Db嘉泰姆	3802Db嘉泰姆	1.22/0.922Db嘉泰姆	902Db嘉泰姆	15002Db嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-8/MSOP-10(FD)2Db嘉泰姆
CXSD62387/A2Db嘉泰姆	4.52Db嘉泰姆	242Db嘉泰姆	32Db嘉泰姆	3802Db嘉泰姆	1.22/0.922Db嘉泰姆	902Db嘉泰姆	15002Db嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)2Db嘉泰姆
CXSD62388/A2Db嘉泰姆	4.752Db嘉泰姆	242Db嘉泰姆	22Db嘉泰姆	3802Db嘉泰姆	1.22/0.922Db嘉泰姆	902Db嘉泰姆	15002Db嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, EN2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623892Db嘉泰姆	4.52Db嘉泰姆	282Db嘉泰姆	32Db嘉泰姆	ADJ2Db嘉泰姆	0.82Db嘉泰姆	902Db嘉泰姆	1702Db嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BS2Db嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)2Db嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-82Db嘉泰姆
CXSD623902Db嘉泰姆	72Db嘉泰姆	182Db嘉泰姆	42Db嘉泰姆	4002Db嘉泰姆	0.82Db嘉泰姆	902Db嘉泰姆	7002Db嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMP2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆
CXSD623912Db嘉泰姆	6.52Db嘉泰姆	242Db嘉泰姆	22Db嘉泰姆	3852Db嘉泰姆	1.22/0.922Db嘉泰姆	902Db嘉泰姆	15002Db嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-82Db嘉泰姆
CXSD623922Db嘉泰姆	4.52Db嘉泰姆	282Db嘉泰姆	32Db嘉泰姆	3802Db嘉泰姆	1.222Db嘉泰姆	902Db嘉泰姆	15002Db嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Db嘉泰姆	SOP-8(FD)2Db嘉泰姆

目录

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