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：719 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TOPyTK嘉泰姆

„ Ultra-High Efficiency yTK嘉泰姆

„ Low Quiescent Current of 40μA yTK嘉泰姆

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

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

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

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

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

„ Programmable Switching Frequency yTK嘉泰姆

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

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

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

„ VCLK Output yTK嘉泰姆

„ Integrated Boost Switch yTK嘉泰姆

„ OVP & UVP yTK嘉泰姆

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

„ 3.3ms Soft-Start yTK嘉泰姆

„ Power-Good Indicator yTK嘉泰姆

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

应用范围 返回TOPyTK嘉泰姆

„ Notebook Computers yTK嘉泰姆

„ I/O Supply yTK嘉泰姆

„ Networking Power SupplyyTK嘉泰姆

技术规格书（产品PDF) 返回TOP yTK嘉泰姆

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产品封装图 返回TOPyTK嘉泰姆

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电路原理图 返回TOPyTK嘉泰姆

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Point Of Load(Synchronous Quasi-PWM Step Down Converter)yTK嘉泰姆
Part NO.yTK嘉泰姆	Vin(V)yTK嘉泰姆 min.yTK嘉泰姆	Vin(V)yTK嘉泰姆 max.yTK嘉泰姆	IlimityTK嘉泰姆 (V)yTK嘉泰姆	FSWyTK嘉泰姆 (kHz)yTK嘉泰姆	FB(V)yTK嘉泰姆	HSRONyTK嘉泰姆 (mohm)yTK嘉泰姆	LSRONyTK嘉泰姆 (mohm)yTK嘉泰姆	NoteyTK嘉泰姆	PackageyTK嘉泰姆
CXSD62363yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	10yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	20yTK嘉泰姆	8.5yTK嘉泰姆	With 5V Supply, EN, PGOODyTK嘉泰姆	QFN4X4-28yTK嘉泰姆 QFN5X5-32yTK嘉泰姆
CXSD62364yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	10yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	20yTK嘉泰姆	8.5yTK嘉泰姆	EN, PGOOD, ILMIT set by RyTK嘉泰姆	QFN4X4-28yTK嘉泰姆
CXSD62365yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	20yTK嘉泰姆	20yTK嘉泰姆	With 5V Supply, EN, PGOODyTK嘉泰姆	QFN4X4-28yTK嘉泰姆 QFN5X5-32yTK嘉泰姆
CXSD62366yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	6yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	20yTK嘉泰姆	20yTK嘉泰姆	EN, PGOOD, ILMIT set by RyTK嘉泰姆	QFN4X4-28yTK嘉泰姆
CXSD62367yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	0.9yTK嘉泰姆	30yTK嘉泰姆	15yTK嘉泰姆	With 5V Supply, EN, PGOOD, Low IqyTK嘉泰姆	QFN3X3-21yTK嘉泰姆
CXSD62367AyTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	4yTK嘉泰姆	ADJyTK嘉泰姆	0.9yTK嘉泰姆	30yTK嘉泰姆	30yTK嘉泰姆	With 5V Supply, EN, PGOOD, Low IqyTK嘉泰姆	QFN3X3-21yTK嘉泰姆
CXSD62368yTK嘉泰姆	4.5yTK嘉泰姆	28yTK嘉泰姆	10yTK嘉泰姆	ADJyTK嘉泰姆	0.8yTK嘉泰姆	20yTK嘉泰姆	8.5yTK嘉泰姆	EN, PGOOD, MLCC, Soft Start adjustableyTK嘉泰姆	QFN4X4-23 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62369yTK嘉泰姆	5.5yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	5.05yTK嘉泰姆	20yTK嘉泰姆	17yTK嘉泰姆	5V System Power Rail,LDO5 Switchover5V,ON5,yTK嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKyTK嘉泰姆	QFN4X4-28 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62370AyTK嘉泰姆	5.5yTK嘉泰姆	28yTK嘉泰姆	10yTK嘉泰姆	ADJyTK嘉泰姆	5.05yTK嘉泰姆	20yTK嘉泰姆	8.5yTK嘉泰姆	5V System Power Rail, LDO5 Switchover5V, ON5yTK嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKyTK嘉泰姆	QFN4X4-28,yTK嘉泰姆 2 Thermal Pads yTK嘉泰姆
CXSD62370ByTK嘉泰姆	5.5yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	3.33yTK嘉泰姆	20yTK嘉泰姆	17yTK嘉泰姆	3V System Power Rail, LDO3 Switchover3V, ON3,yTK嘉泰姆 ENL,PGOOD,Low Iq,MLCC,Ultrasonic with VCLKyTK嘉泰姆	QFN4X4-28 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62371yTK嘉泰姆	3yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	30yTK嘉泰姆	15yTK嘉泰姆	EN, PGOOD, Low Iq, MLCCyTK嘉泰姆	QFN3X3-24 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62372yTK嘉泰姆	5.5yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	0.9yTK嘉泰姆	30yTK嘉泰姆	15yTK嘉泰姆	With 5V Supply, EN, PGOOD, Low Iq, MLCCyTK嘉泰姆	QFN3X3-24 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62372AyTK嘉泰姆	5.5yTK嘉泰姆	28yTK嘉泰姆	4yTK嘉泰姆	ADJyTK嘉泰姆	0.9yTK嘉泰姆	30yTK嘉泰姆	30yTK嘉泰姆	With 5V Supply, EN, PGOOD, Low Iq, MLCCyTK嘉泰姆	QFN3X3-24 2 Thermal PadsyTK嘉泰姆
CXSD62373yTK嘉泰姆	3yTK嘉泰姆	28yTK嘉泰姆	10yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	20yTK嘉泰姆	8.5yTK嘉泰姆	EN, PGOOD, Low Iq, MLCCyTK嘉泰姆	QFN4X4-28 yTK嘉泰姆 2 Thermal PadsyTK嘉泰姆
CXSD62373AyTK嘉泰姆	3yTK嘉泰姆	28yTK嘉泰姆	8yTK嘉泰姆	ADJyTK嘉泰姆	0.75yTK嘉泰姆	30yTK嘉泰姆	15yTK嘉泰姆	EN, PGOOD, Low Iq, MLCCyTK嘉泰姆	QFN4X4-28 yTK嘉泰姆 2 Thermal PadsyTK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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