4.75V到20V的输入电压高效率的2.5A降压转换器CXSD62379固定500kHz开关频率电流模式Buck-PWM转换器

The CXSD62379 is a high efficiency, 2.5A buck converter with a high-side low RDS(ON) switch. It operates from 4.75V to 20V input voltage range, and provides up to 2.5A continuous output current with the output voltage adjustable down to 0.8V. Whenever the load is light, the CXSD62379 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 CXSD62379 is available in a SOP-8 package.

产品特点 返回TOP2Xs嘉泰姆

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

„ Fixed 500kHz Switching Frequency 2Xs嘉泰姆

„ Current-Mode Buck PWM Converter 2Xs嘉泰姆

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

„ 2.5A Output Current 2Xs嘉泰姆

„ 0.8V Internal Reference 2Xs嘉泰姆

„ Shutdown Control 2Xs嘉泰姆

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

„ Cycle-by-Cycle Current-Limit 2Xs嘉泰姆

„ Short Circuit Protection 2Xs嘉泰姆

„ Under-Voltage Lockout Protection 2Xs嘉泰姆

„ SOP-8 Package2Xs嘉泰姆

应用范围 返回TOP2Xs嘉泰姆

„ Distributed Power Systems 2Xs嘉泰姆

„ Battery Charger 2Xs嘉泰姆

„ Palmtop Computers, PDAs 2Xs嘉泰姆

„ DSL Modems2Xs嘉泰姆

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Asynchronous Step Down Converter2Xs嘉泰姆
Part NO.2Xs嘉泰姆	Vin(V)2Xs嘉泰姆 min.2Xs嘉泰姆	Vin(V)2Xs嘉泰姆 max.2Xs嘉泰姆	IOUT2Xs嘉泰姆 (A)2Xs嘉泰姆	FSW2Xs嘉泰姆 (kHz)2Xs嘉泰姆	FB(V)2Xs嘉泰姆	Duty2Xs嘉泰姆 max(%)2Xs嘉泰姆	IQ2Xs嘉泰姆 (μA)2Xs嘉泰姆	Note2Xs嘉泰姆	Package2Xs嘉泰姆
CXSD623742Xs嘉泰姆	4.52Xs嘉泰姆	242Xs嘉泰姆	1.52Xs嘉泰姆	14002Xs嘉泰姆	0.922Xs嘉泰姆	652Xs嘉泰姆	13002Xs嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆
CXSD623752Xs嘉泰姆	5.52Xs嘉泰姆	202Xs嘉泰姆	32Xs嘉泰姆	3002Xs嘉泰姆	0.82Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NC2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623762Xs嘉泰姆	52Xs嘉泰姆	142Xs嘉泰姆	22Xs嘉泰姆	5002Xs嘉泰姆	0.82Xs嘉泰姆	1002Xs嘉泰姆	3002Xs嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LX2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623772Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	22Xs嘉泰姆	5002Xs嘉泰姆	1.22Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623782Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	32Xs嘉泰姆	5002Xs嘉泰姆	1.22Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆
CXSD623792Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	2.52Xs嘉泰姆	5002Xs嘉泰姆	0.82Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NC2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623802Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	22Xs嘉泰姆	3802Xs嘉泰姆	1.222Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	NC, IN, LX, GND, FB, EN, SS2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623812Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	22Xs嘉泰姆	3802Xs嘉泰姆	0.922Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, 2Xs嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-8/MSOP-10(FD)2Xs嘉泰姆
CXSD62382/32Xs嘉泰姆	4.752Xs嘉泰姆	202Xs嘉泰姆	32Xs嘉泰姆	3802Xs嘉泰姆	1.22/0.922Xs嘉泰姆	1002Xs嘉泰姆	10002Xs嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆
CXSD623842Xs嘉泰姆	32Xs嘉泰姆	5.52Xs嘉泰姆	22Xs嘉泰姆	ADJ2Xs嘉泰姆	0.82Xs嘉泰姆	1002Xs嘉泰姆	20002Xs嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FB2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623852Xs嘉泰姆	32Xs嘉泰姆	5.52Xs嘉泰姆	42Xs嘉泰姆	ADJ2Xs嘉泰姆	0.82Xs嘉泰姆	1002Xs嘉泰姆	20002Xs嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FB2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆
CXSD62386/A2Xs嘉泰姆	4.52Xs嘉泰姆	242Xs嘉泰姆	22Xs嘉泰姆	3802Xs嘉泰姆	1.22/0.922Xs嘉泰姆	902Xs嘉泰姆	15002Xs嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-8/MSOP-10(FD)2Xs嘉泰姆
CXSD62387/A2Xs嘉泰姆	4.52Xs嘉泰姆	242Xs嘉泰姆	32Xs嘉泰姆	3802Xs嘉泰姆	1.22/0.922Xs嘉泰姆	902Xs嘉泰姆	15002Xs嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)2Xs嘉泰姆
CXSD62388/A2Xs嘉泰姆	4.752Xs嘉泰姆	242Xs嘉泰姆	22Xs嘉泰姆	3802Xs嘉泰姆	1.22/0.922Xs嘉泰姆	902Xs嘉泰姆	15002Xs嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, EN2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623892Xs嘉泰姆	4.52Xs嘉泰姆	282Xs嘉泰姆	32Xs嘉泰姆	ADJ2Xs嘉泰姆	0.82Xs嘉泰姆	902Xs嘉泰姆	1702Xs嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BS2Xs嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)2Xs嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-82Xs嘉泰姆
CXSD623902Xs嘉泰姆	72Xs嘉泰姆	182Xs嘉泰姆	42Xs嘉泰姆	4002Xs嘉泰姆	0.82Xs嘉泰姆	902Xs嘉泰姆	7002Xs嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMP2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆
CXSD623912Xs嘉泰姆	6.52Xs嘉泰姆	242Xs嘉泰姆	22Xs嘉泰姆	3852Xs嘉泰姆	1.22/0.922Xs嘉泰姆	902Xs嘉泰姆	15002Xs嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-82Xs嘉泰姆
CXSD623922Xs嘉泰姆	4.52Xs嘉泰姆	282Xs嘉泰姆	32Xs嘉泰姆	3802Xs嘉泰姆	1.222Xs嘉泰姆	902Xs嘉泰姆	15002Xs嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SS2Xs嘉泰姆	SOP-8(FD)2Xs嘉泰姆

目录

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