快速瞬态响应大功率DC转换器CXSD62394同步整流buck拓扑驱动两个N通道mosfet输入电压5V至12V电压模式脉宽调制控制

The CXSD62394 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 CXSD62394 integrates all of the control, and protection functions into a single package. The CXSD62394 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 CXSD62394 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62394 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TOPbLM嘉泰姆

„ Drives Two N-Channel MOSFETs bLM嘉泰姆

„ Operates at 5V to 12V Supply Voltage bLM嘉泰姆

„ Voltage-Mode PWM Control bLM嘉泰姆

„ Fast Transient Response bLM嘉泰姆

„ 0.8V, 2% Accuracy Reference Voltage bLM嘉泰姆

„ Internal Soft Start bLM嘉泰姆

„ Constant 300kHz Switching Frequency bLM嘉泰姆

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

„ Output Under-Voltage ProtectionbLM嘉泰姆

应用范围 返回TOPbLM嘉泰姆

„ High Power DC-DC Regulators bLM嘉泰姆

„ Low-Voltage Distributed Power SuppliesbLM嘉泰姆

技术规格书（产品PDF) 返回TOP bLM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！bLM嘉泰姆

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产品封装图 返回TOPbLM嘉泰姆

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电路原理图 返回TOPbLM嘉泰姆

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Synchronous Step Down ControllerbLM嘉泰姆
Part NO.bLM嘉泰姆	Vin(V)bLM嘉泰姆 minbLM嘉泰姆	Vin(V)bLM嘉泰姆 maxbLM嘉泰姆	IOUTbLM嘉泰姆 (A)bLM嘉泰姆	FSWbLM嘉泰姆 (kHz)bLM嘉泰姆	FBbLM嘉泰姆 (V)bLM嘉泰姆	DutybLM嘉泰姆 max(%)bLM嘉泰姆	VOUTbLM嘉泰姆 (ms)bLM嘉泰姆	NotebLM嘉泰姆	PackagebLM嘉泰姆
CXSD62393bLM嘉泰姆	2.5bLM嘉泰姆	5.5bLM嘉泰姆	--bLM嘉泰姆	300bLM嘉泰姆	1bLM嘉泰姆	100bLM嘉泰姆	15bLM嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModebLM嘉泰姆	SOT-23-5bLM嘉泰姆
CXSD62394bLM嘉泰姆	5bLM嘉泰姆	12bLM嘉泰姆	OCSETbLM嘉泰姆	300bLM嘉泰姆	0.8bLM嘉泰姆	--bLM嘉泰姆	14bLM嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXbLM嘉泰姆	SOP-8bLM嘉泰姆
CXSD62395bLM嘉泰姆	--bLM嘉泰姆	24bLM嘉泰姆	OCSETbLM嘉泰姆	300bLM嘉泰姆	0.8bLM嘉泰姆	--bLM嘉泰姆	8bLM嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXbLM嘉泰姆	SOP-8bLM嘉泰姆
CXSD62396bLM嘉泰姆	10bLM嘉泰姆	28bLM嘉泰姆	--bLM嘉泰姆	400bLM嘉泰姆	0.8bLM嘉泰姆	80bLM嘉泰姆	3bLM嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBbLM嘉泰姆	TSOT-23-8bLM嘉泰姆
CXSD62397bLM嘉泰姆	5bLM嘉泰姆	23bLM嘉泰姆	OCSETbLM嘉泰姆	400bLM嘉泰姆	0.8bLM嘉泰姆	80bLM嘉泰姆	8bLM嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTbLM嘉泰姆	SOP-8bLM嘉泰姆
CXSD62398bLM嘉泰姆	4.5bLM嘉泰姆	27bLM嘉泰姆	RSENSEbLM嘉泰姆	ADJbLM嘉泰姆	0.7bLM嘉泰姆	93bLM嘉泰姆	ADJbLM嘉泰姆	Asynchronous Voltage Mode ControllerbLM嘉泰姆	MSOP-10(FD)bLM嘉泰姆