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TOPz4V嘉泰姆

„ 4.75V to 20V Supply Voltage Operating Range z4V嘉泰姆

„ Fixed 500kHz Switching Frequency z4V嘉泰姆

„ Current-Mode Buck PWM Converter z4V嘉泰姆

„ Built-in P-Channel Power MOSFET z4V嘉泰姆

„ 2.5A Output Current z4V嘉泰姆

„ 0.8V Internal Reference z4V嘉泰姆

„ Shutdown Control z4V嘉泰姆

„ Thermal-Shutdown and Internal Soft Start z4V嘉泰姆

„ Cycle-by-Cycle Current-Limit z4V嘉泰姆

„ Short Circuit Protection z4V嘉泰姆

„ Under-Voltage Lockout Protection z4V嘉泰姆

„ SOP-8 Packagez4V嘉泰姆

应用范围 返回TOPz4V嘉泰姆

„ Distributed Power Systems z4V嘉泰姆

„ Battery Charger z4V嘉泰姆

„ Palmtop Computers, PDAs z4V嘉泰姆

„ DSL Modemsz4V嘉泰姆

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Asynchronous Step Down Converterz4V嘉泰姆
Part NO.z4V嘉泰姆	Vin(V)z4V嘉泰姆 min.z4V嘉泰姆	Vin(V)z4V嘉泰姆 max.z4V嘉泰姆	IOUTz4V嘉泰姆 (A)z4V嘉泰姆	FSWz4V嘉泰姆 (kHz)z4V嘉泰姆	FB(V)z4V嘉泰姆	Dutyz4V嘉泰姆 max(%)z4V嘉泰姆	IQz4V嘉泰姆 (μA)z4V嘉泰姆	Notez4V嘉泰姆	Packagez4V嘉泰姆
CXSD62374z4V嘉泰姆	4.5z4V嘉泰姆	24z4V嘉泰姆	1.5z4V嘉泰姆	1400z4V嘉泰姆	0.92z4V嘉泰姆	65z4V嘉泰姆	1300z4V嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆
CXSD62375z4V嘉泰姆	5.5z4V嘉泰姆	20z4V嘉泰姆	3z4V嘉泰姆	300z4V嘉泰姆	0.8z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62376z4V嘉泰姆	5z4V嘉泰姆	14z4V嘉泰姆	2z4V嘉泰姆	500z4V嘉泰姆	0.8z4V嘉泰姆	100z4V嘉泰姆	300z4V嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62377z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	2z4V嘉泰姆	500z4V嘉泰姆	1.2z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62378z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	3z4V嘉泰姆	500z4V嘉泰姆	1.2z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆
CXSD62379z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	2.5z4V嘉泰姆	500z4V嘉泰姆	0.8z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62380z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	2z4V嘉泰姆	380z4V嘉泰姆	1.22z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	NC, IN, LX, GND, FB, EN, SSz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62381z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	2z4V嘉泰姆	380z4V嘉泰姆	0.92z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, z4V嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8/MSOP-10(FD)z4V嘉泰姆
CXSD62382/3z4V嘉泰姆	4.75z4V嘉泰姆	20z4V嘉泰姆	3z4V嘉泰姆	380z4V嘉泰姆	1.22/0.92z4V嘉泰姆	100z4V嘉泰姆	1000z4V嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆
CXSD62384z4V嘉泰姆	3z4V嘉泰姆	5.5z4V嘉泰姆	2z4V嘉泰姆	ADJz4V嘉泰姆	0.8z4V嘉泰姆	100z4V嘉泰姆	2000z4V嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62385z4V嘉泰姆	3z4V嘉泰姆	5.5z4V嘉泰姆	4z4V嘉泰姆	ADJz4V嘉泰姆	0.8z4V嘉泰姆	100z4V嘉泰姆	2000z4V嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆
CXSD62386/Az4V嘉泰姆	4.5z4V嘉泰姆	24z4V嘉泰姆	2z4V嘉泰姆	380z4V嘉泰姆	1.22/0.92z4V嘉泰姆	90z4V嘉泰姆	1500z4V嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8/MSOP-10(FD)z4V嘉泰姆
CXSD62387/Az4V嘉泰姆	4.5z4V嘉泰姆	24z4V嘉泰姆	3z4V嘉泰姆	380z4V嘉泰姆	1.22/0.92z4V嘉泰姆	90z4V嘉泰姆	1500z4V嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)z4V嘉泰姆
CXSD62388/Az4V嘉泰姆	4.75z4V嘉泰姆	24z4V嘉泰姆	2z4V嘉泰姆	380z4V嘉泰姆	1.22/0.92z4V嘉泰姆	90z4V嘉泰姆	1500z4V嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62389z4V嘉泰姆	4.5z4V嘉泰姆	28z4V嘉泰姆	3z4V嘉泰姆	ADJz4V嘉泰姆	0.8z4V嘉泰姆	90z4V嘉泰姆	170z4V嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSz4V嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)z4V嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8z4V嘉泰姆
CXSD62390z4V嘉泰姆	7z4V嘉泰姆	18z4V嘉泰姆	4z4V嘉泰姆	400z4V嘉泰姆	0.8z4V嘉泰姆	90z4V嘉泰姆	700z4V嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆
CXSD62391z4V嘉泰姆	6.5z4V嘉泰姆	24z4V嘉泰姆	2z4V嘉泰姆	385z4V嘉泰姆	1.22/0.92z4V嘉泰姆	90z4V嘉泰姆	1500z4V嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8z4V嘉泰姆
CXSD62392z4V嘉泰姆	4.5z4V嘉泰姆	28z4V嘉泰姆	3z4V嘉泰姆	380z4V嘉泰姆	1.22z4V嘉泰姆	90z4V嘉泰姆	1500z4V嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSz4V嘉泰姆	SOP-8(FD)z4V嘉泰姆

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