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TOPR2j嘉泰姆

„ 4.75V to 20V Supply Voltage Operating Range R2j嘉泰姆

„ Fixed 500kHz Switching Frequency R2j嘉泰姆

„ Current-Mode Buck PWM Converter R2j嘉泰姆

„ Built-in P-Channel Power MOSFET R2j嘉泰姆

„ 2.5A Output Current R2j嘉泰姆

„ 0.8V Internal Reference R2j嘉泰姆

„ Shutdown Control R2j嘉泰姆

„ Thermal-Shutdown and Internal Soft Start R2j嘉泰姆

„ Cycle-by-Cycle Current-Limit R2j嘉泰姆

„ Short Circuit Protection R2j嘉泰姆

„ Under-Voltage Lockout Protection R2j嘉泰姆

„ SOP-8 PackageR2j嘉泰姆

应用范围 返回TOPR2j嘉泰姆

„ Distributed Power Systems R2j嘉泰姆

„ Battery Charger R2j嘉泰姆

„ Palmtop Computers, PDAs R2j嘉泰姆

„ DSL ModemsR2j嘉泰姆

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Asynchronous Step Down ConverterR2j嘉泰姆
Part NO.R2j嘉泰姆	Vin(V)R2j嘉泰姆 min.R2j嘉泰姆	Vin(V)R2j嘉泰姆 max.R2j嘉泰姆	IOUTR2j嘉泰姆 (A)R2j嘉泰姆	FSWR2j嘉泰姆 (kHz)R2j嘉泰姆	FB(V)R2j嘉泰姆	DutyR2j嘉泰姆 max(%)R2j嘉泰姆	IQR2j嘉泰姆 (μA)R2j嘉泰姆	NoteR2j嘉泰姆	PackageR2j嘉泰姆
CXSD62374R2j嘉泰姆	4.5R2j嘉泰姆	24R2j嘉泰姆	1.5R2j嘉泰姆	1400R2j嘉泰姆	0.92R2j嘉泰姆	65R2j嘉泰姆	1300R2j嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆
CXSD62375R2j嘉泰姆	5.5R2j嘉泰姆	20R2j嘉泰姆	3R2j嘉泰姆	300R2j嘉泰姆	0.8R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62376R2j嘉泰姆	5R2j嘉泰姆	14R2j嘉泰姆	2R2j嘉泰姆	500R2j嘉泰姆	0.8R2j嘉泰姆	100R2j嘉泰姆	300R2j嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62377R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	2R2j嘉泰姆	500R2j嘉泰姆	1.2R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62378R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	3R2j嘉泰姆	500R2j嘉泰姆	1.2R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆
CXSD62379R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	2.5R2j嘉泰姆	500R2j嘉泰姆	0.8R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62380R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	2R2j嘉泰姆	380R2j嘉泰姆	1.22R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	NC, IN, LX, GND, FB, EN, SSR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62381R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	2R2j嘉泰姆	380R2j嘉泰姆	0.92R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, R2j嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8/MSOP-10(FD)R2j嘉泰姆
CXSD62382/3R2j嘉泰姆	4.75R2j嘉泰姆	20R2j嘉泰姆	3R2j嘉泰姆	380R2j嘉泰姆	1.22/0.92R2j嘉泰姆	100R2j嘉泰姆	1000R2j嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆
CXSD62384R2j嘉泰姆	3R2j嘉泰姆	5.5R2j嘉泰姆	2R2j嘉泰姆	ADJR2j嘉泰姆	0.8R2j嘉泰姆	100R2j嘉泰姆	2000R2j嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62385R2j嘉泰姆	3R2j嘉泰姆	5.5R2j嘉泰姆	4R2j嘉泰姆	ADJR2j嘉泰姆	0.8R2j嘉泰姆	100R2j嘉泰姆	2000R2j嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆
CXSD62386/AR2j嘉泰姆	4.5R2j嘉泰姆	24R2j嘉泰姆	2R2j嘉泰姆	380R2j嘉泰姆	1.22/0.92R2j嘉泰姆	90R2j嘉泰姆	1500R2j嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8/MSOP-10(FD)R2j嘉泰姆
CXSD62387/AR2j嘉泰姆	4.5R2j嘉泰姆	24R2j嘉泰姆	3R2j嘉泰姆	380R2j嘉泰姆	1.22/0.92R2j嘉泰姆	90R2j嘉泰姆	1500R2j嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)R2j嘉泰姆
CXSD62388/AR2j嘉泰姆	4.75R2j嘉泰姆	24R2j嘉泰姆	2R2j嘉泰姆	380R2j嘉泰姆	1.22/0.92R2j嘉泰姆	90R2j嘉泰姆	1500R2j嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62389R2j嘉泰姆	4.5R2j嘉泰姆	28R2j嘉泰姆	3R2j嘉泰姆	ADJR2j嘉泰姆	0.8R2j嘉泰姆	90R2j嘉泰姆	170R2j嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSR2j嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)R2j嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8R2j嘉泰姆
CXSD62390R2j嘉泰姆	7R2j嘉泰姆	18R2j嘉泰姆	4R2j嘉泰姆	400R2j嘉泰姆	0.8R2j嘉泰姆	90R2j嘉泰姆	700R2j嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆
CXSD62391R2j嘉泰姆	6.5R2j嘉泰姆	24R2j嘉泰姆	2R2j嘉泰姆	385R2j嘉泰姆	1.22/0.92R2j嘉泰姆	90R2j嘉泰姆	1500R2j嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8R2j嘉泰姆
CXSD62392R2j嘉泰姆	4.5R2j嘉泰姆	28R2j嘉泰姆	3R2j嘉泰姆	380R2j嘉泰姆	1.22R2j嘉泰姆	90R2j嘉泰姆	1500R2j嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSR2j嘉泰姆	SOP-8(FD)R2j嘉泰姆

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