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TOPx3F嘉泰姆

„ 4.75V to 20V Supply Voltage Operating Range x3F嘉泰姆

„ Fixed 500kHz Switching Frequency x3F嘉泰姆

„ Current-Mode Buck PWM Converter x3F嘉泰姆

„ Built-in P-Channel Power MOSFET x3F嘉泰姆

„ 2.5A Output Current x3F嘉泰姆

„ 0.8V Internal Reference x3F嘉泰姆

„ Shutdown Control x3F嘉泰姆

„ Thermal-Shutdown and Internal Soft Start x3F嘉泰姆

„ Cycle-by-Cycle Current-Limit x3F嘉泰姆

„ Short Circuit Protection x3F嘉泰姆

„ Under-Voltage Lockout Protection x3F嘉泰姆

„ SOP-8 Packagex3F嘉泰姆

应用范围 返回TOPx3F嘉泰姆

„ Distributed Power Systems x3F嘉泰姆

„ Battery Charger x3F嘉泰姆

„ Palmtop Computers, PDAs x3F嘉泰姆

„ DSL Modemsx3F嘉泰姆

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Asynchronous Step Down Converterx3F嘉泰姆
Part NO.x3F嘉泰姆	Vin(V)x3F嘉泰姆 min.x3F嘉泰姆	Vin(V)x3F嘉泰姆 max.x3F嘉泰姆	IOUTx3F嘉泰姆 (A)x3F嘉泰姆	FSWx3F嘉泰姆 (kHz)x3F嘉泰姆	FB(V)x3F嘉泰姆	Dutyx3F嘉泰姆 max(%)x3F嘉泰姆	IQx3F嘉泰姆 (μA)x3F嘉泰姆	Notex3F嘉泰姆	Packagex3F嘉泰姆
CXSD62374x3F嘉泰姆	4.5x3F嘉泰姆	24x3F嘉泰姆	1.5x3F嘉泰姆	1400x3F嘉泰姆	0.92x3F嘉泰姆	65x3F嘉泰姆	1300x3F嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆
CXSD62375x3F嘉泰姆	5.5x3F嘉泰姆	20x3F嘉泰姆	3x3F嘉泰姆	300x3F嘉泰姆	0.8x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62376x3F嘉泰姆	5x3F嘉泰姆	14x3F嘉泰姆	2x3F嘉泰姆	500x3F嘉泰姆	0.8x3F嘉泰姆	100x3F嘉泰姆	300x3F嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62377x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	2x3F嘉泰姆	500x3F嘉泰姆	1.2x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62378x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	3x3F嘉泰姆	500x3F嘉泰姆	1.2x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆
CXSD62379x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	2.5x3F嘉泰姆	500x3F嘉泰姆	0.8x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62380x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	2x3F嘉泰姆	380x3F嘉泰姆	1.22x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	NC, IN, LX, GND, FB, EN, SSx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62381x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	2x3F嘉泰姆	380x3F嘉泰姆	0.92x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, x3F嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8/MSOP-10(FD)x3F嘉泰姆
CXSD62382/3x3F嘉泰姆	4.75x3F嘉泰姆	20x3F嘉泰姆	3x3F嘉泰姆	380x3F嘉泰姆	1.22/0.92x3F嘉泰姆	100x3F嘉泰姆	1000x3F嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆
CXSD62384x3F嘉泰姆	3x3F嘉泰姆	5.5x3F嘉泰姆	2x3F嘉泰姆	ADJx3F嘉泰姆	0.8x3F嘉泰姆	100x3F嘉泰姆	2000x3F嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62385x3F嘉泰姆	3x3F嘉泰姆	5.5x3F嘉泰姆	4x3F嘉泰姆	ADJx3F嘉泰姆	0.8x3F嘉泰姆	100x3F嘉泰姆	2000x3F嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆
CXSD62386/Ax3F嘉泰姆	4.5x3F嘉泰姆	24x3F嘉泰姆	2x3F嘉泰姆	380x3F嘉泰姆	1.22/0.92x3F嘉泰姆	90x3F嘉泰姆	1500x3F嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8/MSOP-10(FD)x3F嘉泰姆
CXSD62387/Ax3F嘉泰姆	4.5x3F嘉泰姆	24x3F嘉泰姆	3x3F嘉泰姆	380x3F嘉泰姆	1.22/0.92x3F嘉泰姆	90x3F嘉泰姆	1500x3F嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)x3F嘉泰姆
CXSD62388/Ax3F嘉泰姆	4.75x3F嘉泰姆	24x3F嘉泰姆	2x3F嘉泰姆	380x3F嘉泰姆	1.22/0.92x3F嘉泰姆	90x3F嘉泰姆	1500x3F嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62389x3F嘉泰姆	4.5x3F嘉泰姆	28x3F嘉泰姆	3x3F嘉泰姆	ADJx3F嘉泰姆	0.8x3F嘉泰姆	90x3F嘉泰姆	170x3F嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSx3F嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)x3F嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8x3F嘉泰姆
CXSD62390x3F嘉泰姆	7x3F嘉泰姆	18x3F嘉泰姆	4x3F嘉泰姆	400x3F嘉泰姆	0.8x3F嘉泰姆	90x3F嘉泰姆	700x3F嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆
CXSD62391x3F嘉泰姆	6.5x3F嘉泰姆	24x3F嘉泰姆	2x3F嘉泰姆	385x3F嘉泰姆	1.22/0.92x3F嘉泰姆	90x3F嘉泰姆	1500x3F嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8x3F嘉泰姆
CXSD62392x3F嘉泰姆	4.5x3F嘉泰姆	28x3F嘉泰姆	3x3F嘉泰姆	380x3F嘉泰姆	1.22x3F嘉泰姆	90x3F嘉泰姆	1500x3F嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSx3F嘉泰姆	SOP-8(FD)x3F嘉泰姆

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