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TOPQaQ嘉泰姆

„ Drives Two N-Channel MOSFETs QaQ嘉泰姆

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

„ Voltage-Mode PWM Control QaQ嘉泰姆

„ Fast Transient Response QaQ嘉泰姆

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

„ Internal Soft Start QaQ嘉泰姆

„ Constant 300kHz Switching Frequency QaQ嘉泰姆

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

„ Output Under-Voltage ProtectionQaQ嘉泰姆

应用范围 返回TOPQaQ嘉泰姆

„ High Power DC-DC Regulators QaQ嘉泰姆

„ Low-Voltage Distributed Power SuppliesQaQ嘉泰姆

技术规格书（产品PDF) 返回TOP QaQ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！QaQ嘉泰姆

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产品封装图 返回TOPQaQ嘉泰姆

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电路原理图 返回TOPQaQ嘉泰姆

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Synchronous Step Down ControllerQaQ嘉泰姆
Part NO.QaQ嘉泰姆	Vin(V)QaQ嘉泰姆 minQaQ嘉泰姆	Vin(V)QaQ嘉泰姆 maxQaQ嘉泰姆	IOUTQaQ嘉泰姆 (A)QaQ嘉泰姆	FSWQaQ嘉泰姆 (kHz)QaQ嘉泰姆	FBQaQ嘉泰姆 (V)QaQ嘉泰姆	DutyQaQ嘉泰姆 max(%)QaQ嘉泰姆	VOUTQaQ嘉泰姆 (ms)QaQ嘉泰姆	NoteQaQ嘉泰姆	PackageQaQ嘉泰姆
CXSD62393QaQ嘉泰姆	2.5QaQ嘉泰姆	5.5QaQ嘉泰姆	--QaQ嘉泰姆	300QaQ嘉泰姆	1QaQ嘉泰姆	100QaQ嘉泰姆	15QaQ嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModeQaQ嘉泰姆	SOT-23-5QaQ嘉泰姆
CXSD62394QaQ嘉泰姆	5QaQ嘉泰姆	12QaQ嘉泰姆	OCSETQaQ嘉泰姆	300QaQ嘉泰姆	0.8QaQ嘉泰姆	--QaQ嘉泰姆	14QaQ嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXQaQ嘉泰姆	SOP-8QaQ嘉泰姆
CXSD62395QaQ嘉泰姆	--QaQ嘉泰姆	24QaQ嘉泰姆	OCSETQaQ嘉泰姆	300QaQ嘉泰姆	0.8QaQ嘉泰姆	--QaQ嘉泰姆	8QaQ嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXQaQ嘉泰姆	SOP-8QaQ嘉泰姆
CXSD62396QaQ嘉泰姆	10QaQ嘉泰姆	28QaQ嘉泰姆	--QaQ嘉泰姆	400QaQ嘉泰姆	0.8QaQ嘉泰姆	80QaQ嘉泰姆	3QaQ嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBQaQ嘉泰姆	TSOT-23-8QaQ嘉泰姆
CXSD62397QaQ嘉泰姆	5QaQ嘉泰姆	23QaQ嘉泰姆	OCSETQaQ嘉泰姆	400QaQ嘉泰姆	0.8QaQ嘉泰姆	80QaQ嘉泰姆	8QaQ嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTQaQ嘉泰姆	SOP-8QaQ嘉泰姆
CXSD62398QaQ嘉泰姆	4.5QaQ嘉泰姆	27QaQ嘉泰姆	RSENSEQaQ嘉泰姆	ADJQaQ嘉泰姆	0.7QaQ嘉泰姆	93QaQ嘉泰姆	ADJQaQ嘉泰姆	Asynchronous Voltage Mode ControllerQaQ嘉泰姆	MSOP-10(FD)QaQ嘉泰姆