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TOPOYc嘉泰姆

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

„ Fixed 500kHz Switching Frequency OYc嘉泰姆

„ Current-Mode Buck PWM Converter OYc嘉泰姆

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

„ 3A Output Current OYc嘉泰姆

„ 1.2V Internal Reference OYc嘉泰姆

„ Shutdown Control OYc嘉泰姆

„ Thermal-Shutdown and Internal Soft Start OYc嘉泰姆

„ Cycle-by-Cycle Current-Limit OYc嘉泰姆

„ Short Circuit Protection OYc嘉泰姆

„ Under-Voltage Lockout ProtectionOYc嘉泰姆

„ RoHs Compliant OYc嘉泰姆

„ SOP-8 (FD) PackageOYc嘉泰姆

应用范围 返回TOPOYc嘉泰姆

„ Distributed Power Systems OYc嘉泰姆

„ Battery Charger OYc嘉泰姆

„ Palmtop Computers, PDAs OYc嘉泰姆

„ DSL ModemsOYc嘉泰姆

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Asynchronous Step Down ConverterOYc嘉泰姆
Part NO.OYc嘉泰姆	Vin(V)OYc嘉泰姆 min.OYc嘉泰姆	Vin(V)OYc嘉泰姆 max.OYc嘉泰姆	IOUTOYc嘉泰姆 (A)OYc嘉泰姆	FSWOYc嘉泰姆 (kHz)OYc嘉泰姆	FB(V)OYc嘉泰姆	DutyOYc嘉泰姆 max(%)OYc嘉泰姆	IQOYc嘉泰姆 (μA)OYc嘉泰姆	NoteOYc嘉泰姆	PackageOYc嘉泰姆
CXSD62374OYc嘉泰姆	4.5OYc嘉泰姆	24OYc嘉泰姆	1.5OYc嘉泰姆	1400OYc嘉泰姆	0.92OYc嘉泰姆	65OYc嘉泰姆	1300OYc嘉泰姆	BS, IN, LX,GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆
CXSD62375OYc嘉泰姆	5.5OYc嘉泰姆	20OYc嘉泰姆	3OYc嘉泰姆	300OYc嘉泰姆	0.8OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	FB, EN, NC, IN, NC, LX, GND, NCOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62376OYc嘉泰姆	5OYc嘉泰姆	14OYc嘉泰姆	2OYc嘉泰姆	500OYc嘉泰姆	0.8OYc嘉泰姆	100OYc嘉泰姆	300OYc嘉泰姆	GND, IN, GND, FB, COMP, EN, LX, LXOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62377OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	2OYc嘉泰姆	500OYc嘉泰姆	1.2OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62378OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	3OYc嘉泰姆	500OYc嘉泰姆	1.2OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆
CXSD62379OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	2.5OYc嘉泰姆	500OYc嘉泰姆	0.8OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	IN, EN, COMP, FB, NC, GND, LX, NCOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62380OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	2OYc嘉泰姆	380OYc嘉泰姆	1.22OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	NC, IN, LX, GND, FB, EN, SSOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62381OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	2OYc嘉泰姆	380OYc嘉泰姆	0.92OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SS, OYc嘉泰姆 NC*3IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8/MSOP-10(FD)OYc嘉泰姆
CXSD62382/3OYc嘉泰姆	4.75OYc嘉泰姆	20OYc嘉泰姆	3OYc嘉泰姆	380OYc嘉泰姆	1.22/0.92OYc嘉泰姆	100OYc嘉泰姆	1000OYc嘉泰姆	NC, IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆
CXSD62384OYc嘉泰姆	3OYc嘉泰姆	5.5OYc嘉泰姆	2OYc嘉泰姆	ADJOYc嘉泰姆	0.8OYc嘉泰姆	100OYc嘉泰姆	2000OYc嘉泰姆	COMP, GND, EN, IN, LX*2, FQEQ, FBOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62385OYc嘉泰姆	3OYc嘉泰姆	5.5OYc嘉泰姆	4OYc嘉泰姆	ADJOYc嘉泰姆	0.8OYc嘉泰姆	100OYc嘉泰姆	2000OYc嘉泰姆	COMP, GND, EN, IN, LX, LX, FQEQ, FBOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆
CXSD62386/AOYc嘉泰姆	4.5OYc嘉泰姆	24OYc嘉泰姆	2OYc嘉泰姆	380OYc嘉泰姆	1.22/0.92OYc嘉泰姆	90OYc嘉泰姆	1500OYc嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8/MSOP-10(FD)OYc嘉泰姆
CXSD62387/AOYc嘉泰姆	4.5OYc嘉泰姆	24OYc嘉泰姆	3OYc嘉泰姆	380OYc嘉泰姆	1.22/0.92OYc嘉泰姆	90OYc嘉泰姆	1500OYc嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-(FD)/DIP-8/MSOP-10(FD)OYc嘉泰姆
CXSD62388/AOYc嘉泰姆	4.75OYc嘉泰姆	24OYc嘉泰姆	2OYc嘉泰姆	380OYc嘉泰姆	1.22/0.92OYc嘉泰姆	90OYc嘉泰姆	1500OYc嘉泰姆	SS/NC, BS, IN, LX, GND, FB, COMP, ENOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62389OYc嘉泰姆	4.5OYc嘉泰姆	28OYc嘉泰姆	3OYc嘉泰姆	ADJOYc嘉泰姆	0.8OYc嘉泰姆	90OYc嘉泰姆	170OYc嘉泰姆	LX, EN, COMP, FB, GND, FREQ, IN, BSOYc嘉泰姆 Dutymax = 1 - (TOFFmin * 900K)OYc嘉泰姆	SOP-8(FD)/DIP-8/TDFN3X3-8OYc嘉泰姆
CXSD62390OYc嘉泰姆	7OYc嘉泰姆	18OYc嘉泰姆	4OYc嘉泰姆	400OYc嘉泰姆	0.8OYc嘉泰姆	90OYc嘉泰姆	700OYc嘉泰姆	EN, BS, IN, LX, VCC, GND, FB, COMPOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆
CXSD62391OYc嘉泰姆	6.5OYc嘉泰姆	24OYc嘉泰姆	2OYc嘉泰姆	385OYc嘉泰姆	1.22/0.92OYc嘉泰姆	90OYc嘉泰姆	1500OYc嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8OYc嘉泰姆
CXSD62392OYc嘉泰姆	4.5OYc嘉泰姆	28OYc嘉泰姆	3OYc嘉泰姆	380OYc嘉泰姆	1.22OYc嘉泰姆	90OYc嘉泰姆	1500OYc嘉泰姆	BS, IN, LX, GND, FB, COMP, EN, SSOYc嘉泰姆	SOP-8(FD)OYc嘉泰姆

目录

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