High Efficiency 8A Synchronous Buck Converter for 5V System Power CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-

发布时间：2020-04-06 09:43:38 浏览次数：714 作者：嘉泰姆

摘要：High Efficiency 8A Synchronous Buck Converter for 5V System Power CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-

CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-channel low-side MOSFET. It uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The CXSD62369 CXSD62370A CXSD62370B achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. The built-in 5V LDO supports 80mA for internal circuit with automatic bootstrapping to DC/DC converter output. The CXSD62369 CXSD62370A CXSD62370Bis intended for the 5V system power supply of Notebook Computer. The CXSD62369 CXSD62370A CXSD62370Bis available in QFN4X4-28 package.

产品特点 返回TOPefX嘉泰姆

„ Ultra-High Efficiency efX嘉泰姆

„ Low Quiescent Current of 40μA efX嘉泰姆

„ Integrated 17mΩ at VCC=5V N-Channel MOSFET for Low Side efX嘉泰姆

„ Integrated 20mΩ at VCC=5V N-Channel MOSFET for High Side efX嘉泰姆

„ No Current-Sense Resistor (Lossless ILIMIT) efX嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response efX嘉泰姆

„ 1% VOUT Accuracy Over Line and Load efX嘉泰姆

„ Programmable Switching Frequency efX嘉泰姆

„ 4.5V to 5.5V Adjustable Output Range efX嘉泰姆

„ 6V to 28V Adapter or Battery Input Range efX嘉泰姆

„ Noiseless Pulse-skipping Mode (25kHz min) efX嘉泰姆

„ VCLK Output efX嘉泰姆

„ Integrated Boost Switch efX嘉泰姆

„ OVP & UVP efX嘉泰姆

„ Over Temperature Protection (non-latch) efX嘉泰姆

„ 3.3ms Soft-Start efX嘉泰姆

„ Power-Good Indicator efX嘉泰姆

„ Fixed 5V, 80mA Bootstrapped Linear RegulatorefX嘉泰姆

应用范围 返回TOPefX嘉泰姆

„ Notebook Computers efX嘉泰姆

„ I/O Supply efX嘉泰姆

„ Networking Power SupplyefX嘉泰姆

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产品封装图 返回TOPefX嘉泰姆

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Point Of Load(Synchronous Quasi-PWM Step Down Converter)efX嘉泰姆
Part NO.efX嘉泰姆	Vin(V)efX嘉泰姆 min.efX嘉泰姆	Vin(V)efX嘉泰姆 max.efX嘉泰姆	IlimitefX嘉泰姆 (V)efX嘉泰姆	FSWefX嘉泰姆 (kHz)efX嘉泰姆	FB(V)efX嘉泰姆	HSRONefX嘉泰姆 (mohm)efX嘉泰姆	LSRONefX嘉泰姆 (mohm)efX嘉泰姆	NoteefX嘉泰姆	PackageefX嘉泰姆
CXSD62363efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	10efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	20efX嘉泰姆	8.5efX嘉泰姆	With 5V Supply, EN, PGOODefX嘉泰姆	QFN4X4-28efX嘉泰姆 QFN5X5-32efX嘉泰姆
CXSD62364efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	10efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	20efX嘉泰姆	8.5efX嘉泰姆	EN, PGOOD, ILMIT set by RefX嘉泰姆	QFN4X4-28efX嘉泰姆
CXSD62365efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	20efX嘉泰姆	20efX嘉泰姆	With 5V Supply, EN, PGOODefX嘉泰姆	QFN4X4-28efX嘉泰姆 QFN5X5-32efX嘉泰姆
CXSD62366efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	6efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	20efX嘉泰姆	20efX嘉泰姆	EN, PGOOD, ILMIT set by RefX嘉泰姆	QFN4X4-28efX嘉泰姆
CXSD62367efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	0.9efX嘉泰姆	30efX嘉泰姆	15efX嘉泰姆	With 5V Supply, EN, PGOOD, Low IqefX嘉泰姆	QFN3X3-21efX嘉泰姆
CXSD62367AefX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	4efX嘉泰姆	ADJefX嘉泰姆	0.9efX嘉泰姆	30efX嘉泰姆	30efX嘉泰姆	With 5V Supply, EN, PGOOD, Low IqefX嘉泰姆	QFN3X3-21efX嘉泰姆
CXSD62368efX嘉泰姆	4.5efX嘉泰姆	28efX嘉泰姆	10efX嘉泰姆	ADJefX嘉泰姆	0.8efX嘉泰姆	20efX嘉泰姆	8.5efX嘉泰姆	EN, PGOOD, MLCC, Soft Start adjustableefX嘉泰姆	QFN4X4-23 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62369efX嘉泰姆	5.5efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	5.05efX嘉泰姆	20efX嘉泰姆	17efX嘉泰姆	5V System Power Rail,LDO5 Switchover5V,ON5,efX嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKefX嘉泰姆	QFN4X4-28 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62370AefX嘉泰姆	5.5efX嘉泰姆	28efX嘉泰姆	10efX嘉泰姆	ADJefX嘉泰姆	5.05efX嘉泰姆	20efX嘉泰姆	8.5efX嘉泰姆	5V System Power Rail, LDO5 Switchover5V, ON5efX嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKefX嘉泰姆	QFN4X4-28,efX嘉泰姆 2 Thermal Pads efX嘉泰姆
CXSD62370BefX嘉泰姆	5.5efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	3.33efX嘉泰姆	20efX嘉泰姆	17efX嘉泰姆	3V System Power Rail, LDO3 Switchover3V, ON3,efX嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKefX嘉泰姆	QFN4X4-28 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62371efX嘉泰姆	3efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	30efX嘉泰姆	15efX嘉泰姆	EN, PGOOD, Low Iq, MLCCefX嘉泰姆	QFN3X3-24 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62372efX嘉泰姆	5.5efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	0.9efX嘉泰姆	30efX嘉泰姆	15efX嘉泰姆	With 5V Supply, EN, PGOOD, Low Iq, MLCCefX嘉泰姆	QFN3X3-24 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62372AefX嘉泰姆	5.5efX嘉泰姆	28efX嘉泰姆	4efX嘉泰姆	ADJefX嘉泰姆	0.9efX嘉泰姆	30efX嘉泰姆	30efX嘉泰姆	With 5V Supply, EN, PGOOD, Low Iq, MLCCefX嘉泰姆	QFN3X3-24 2 Thermal PadsefX嘉泰姆
CXSD62373efX嘉泰姆	3efX嘉泰姆	28efX嘉泰姆	10efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	20efX嘉泰姆	8.5efX嘉泰姆	EN, PGOOD, Low Iq, MLCCefX嘉泰姆	QFN4X4-28 efX嘉泰姆 2 Thermal PadsefX嘉泰姆
CXSD62373AefX嘉泰姆	3efX嘉泰姆	28efX嘉泰姆	8efX嘉泰姆	ADJefX嘉泰姆	0.75efX嘉泰姆	30efX嘉泰姆	15efX嘉泰姆	EN, PGOOD, Low Iq, MLCCefX嘉泰姆	QFN4X4-28 efX嘉泰姆 2 Thermal PadsefX嘉泰姆

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上一篇： The CXSD62368 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Single-stage buck conversion allows these devices to directly

下一篇： The CXSD62371 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Single-stage buck conversion allows these devices to directly

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High Efficiency 8A Synchronous Buck Converter for 5V System Power CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-

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High Efficiency 8A Synchronous Buck Converter for 5V System Power CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-

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