大功率DC转换器PWM控制CXSD62395同步整流buck拓扑中驱动两个N通道mosfet快速瞬态响应恒定300kHz开关频率

The CXSD62395 provides complete control and protection for a DC-DC converter for high power applications. It is designed to drive two N-channel MOSFETs in a synchronous-rectified buck topology. The CXSD62395 integrates all of the control, and protection functions into a single package. The CXSD62395 provides simple, single feedback loop, voltage-mode control with fast transient response. It includes a 300KHz free-running triangle-wave oscillator. The error amplifier features a 15MHz gain-bandwidth product which provides high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 80%. The reference voltage is 0.8V, 2% accuracy. The CXSD62395 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62395 monitors the current by using the RDS(ON) of the low-side MOSFET which eliminates the need for a current sensing resistor. The under-voltage protection function monitors voltage at FB pin. The over-current and under-voltage events after soft-start interval trigger hiccup mode protection.

产品特点 返回TOP209嘉泰姆

Drives Two N-Channel MOSFETs 209嘉泰姆

Operates at 5V Supply Voltage 209嘉泰姆

Voltage-Mode PWM Control 209嘉泰姆

Fast Transient Response 209嘉泰姆

0.8V, 2% Accuracy Reference Voltage 209嘉泰姆

Internal Soft Start 209嘉泰姆

Constant 300kHz Switching Frequency 209嘉泰姆

Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) 209嘉泰姆

Output Under-Voltage Protection209嘉泰姆

应用范围 返回TOP209嘉泰姆

16V to 30V Input High Power DC-DC Regulators 209嘉泰姆

Low-Voltage Distributed Power Supplies209嘉泰姆

技术规格书（产品PDF) 返回TOP 209嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！209嘉泰姆

QQ截图20160419174301.jpg 209嘉泰姆

产品封装图 返回TOP209嘉泰姆

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电路原理图 返回TOP209嘉泰姆

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Synchronous Step Down Controller209嘉泰姆
Part NO.209嘉泰姆	Vin(V)209嘉泰姆 min209嘉泰姆	Vin(V)209嘉泰姆 max209嘉泰姆	IOUT209嘉泰姆 (A)209嘉泰姆	FSW209嘉泰姆 (kHz)209嘉泰姆	FB209嘉泰姆 (V)209嘉泰姆	Duty209嘉泰姆 max(%)209嘉泰姆	VOUT209嘉泰姆 (ms)209嘉泰姆	Note209嘉泰姆	Package209嘉泰姆
CXSD62393209嘉泰姆	2.5209嘉泰姆	5.5209嘉泰姆	--209嘉泰姆	300209嘉泰姆	1209嘉泰姆	100209嘉泰姆	15209嘉泰姆	EXT, VDD, GND, CE, FB, Voltage Mode209嘉泰姆	SOT-23-5209嘉泰姆
CXSD62394209嘉泰姆	5209嘉泰姆	12209嘉泰姆	OCSET209嘉泰姆	300209嘉泰姆	0.8209嘉泰姆	--209嘉泰姆	14209嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LX209嘉泰姆	SOP-8209嘉泰姆
CXSD62395209嘉泰姆	--209嘉泰姆	24209嘉泰姆	OCSET209嘉泰姆	300209嘉泰姆	0.8209嘉泰姆	--209嘉泰姆	8209嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LX209嘉泰姆	SOP-8209嘉泰姆
CXSD62396209嘉泰姆	10209嘉泰姆	28209嘉泰姆	--209嘉泰姆	400209嘉泰姆	0.8209嘉泰姆	80209嘉泰姆	3209嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FB209嘉泰姆	TSOT-23-8209嘉泰姆
CXSD62397209嘉泰姆	5209嘉泰姆	23209嘉泰姆	OCSET209嘉泰姆	400209嘉泰姆	0.8209嘉泰姆	80209嘉泰姆	8209嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BST209嘉泰姆	SOP-8209嘉泰姆
CXSD62398209嘉泰姆	4.5209嘉泰姆	27209嘉泰姆	RSENSE209嘉泰姆	ADJ209嘉泰姆	0.7209嘉泰姆	93209嘉泰姆	ADJ209嘉泰姆	Asynchronous Voltage Mode Controller209嘉泰姆	MSOP-10(FD)209嘉泰姆