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TOPFp1嘉泰姆

„ Drives Two N-Channel MOSFETs Fp1嘉泰姆

„ Operates at 5V to 12V Supply Voltage Fp1嘉泰姆

„ Voltage-Mode PWM Control Fp1嘉泰姆

„ Fast Transient Response Fp1嘉泰姆

„ 0.8V, 2% Accuracy Reference Voltage Fp1嘉泰姆

„ Internal Soft Start Fp1嘉泰姆

„ Constant 300kHz Switching Frequency Fp1嘉泰姆

„ Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) Fp1嘉泰姆

„ Output Under-Voltage ProtectionFp1嘉泰姆

应用范围 返回TOPFp1嘉泰姆

„ High Power DC-DC Regulators Fp1嘉泰姆

„ Low-Voltage Distributed Power SuppliesFp1嘉泰姆

技术规格书（产品PDF) 返回TOP Fp1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！Fp1嘉泰姆

QQ截图20160419174301.jpg Fp1嘉泰姆

产品封装图 返回TOPFp1嘉泰姆

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电路原理图 返回TOPFp1嘉泰姆

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Synchronous Step Down ControllerFp1嘉泰姆
Part NO.Fp1嘉泰姆	Vin(V)Fp1嘉泰姆 minFp1嘉泰姆	Vin(V)Fp1嘉泰姆 maxFp1嘉泰姆	IOUTFp1嘉泰姆 (A)Fp1嘉泰姆	FSWFp1嘉泰姆 (kHz)Fp1嘉泰姆	FBFp1嘉泰姆 (V)Fp1嘉泰姆	DutyFp1嘉泰姆 max(%)Fp1嘉泰姆	VOUTFp1嘉泰姆 (ms)Fp1嘉泰姆	NoteFp1嘉泰姆	PackageFp1嘉泰姆
CXSD62393Fp1嘉泰姆	2.5Fp1嘉泰姆	5.5Fp1嘉泰姆	--Fp1嘉泰姆	300Fp1嘉泰姆	1Fp1嘉泰姆	100Fp1嘉泰姆	15Fp1嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModeFp1嘉泰姆	SOT-23-5Fp1嘉泰姆
CXSD62394Fp1嘉泰姆	5Fp1嘉泰姆	12Fp1嘉泰姆	OCSETFp1嘉泰姆	300Fp1嘉泰姆	0.8Fp1嘉泰姆	--Fp1嘉泰姆	14Fp1嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXFp1嘉泰姆	SOP-8Fp1嘉泰姆
CXSD62395Fp1嘉泰姆	--Fp1嘉泰姆	24Fp1嘉泰姆	OCSETFp1嘉泰姆	300Fp1嘉泰姆	0.8Fp1嘉泰姆	--Fp1嘉泰姆	8Fp1嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXFp1嘉泰姆	SOP-8Fp1嘉泰姆
CXSD62396Fp1嘉泰姆	10Fp1嘉泰姆	28Fp1嘉泰姆	--Fp1嘉泰姆	400Fp1嘉泰姆	0.8Fp1嘉泰姆	80Fp1嘉泰姆	3Fp1嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBFp1嘉泰姆	TSOT-23-8Fp1嘉泰姆
CXSD62397Fp1嘉泰姆	5Fp1嘉泰姆	23Fp1嘉泰姆	OCSETFp1嘉泰姆	400Fp1嘉泰姆	0.8Fp1嘉泰姆	80Fp1嘉泰姆	8Fp1嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTFp1嘉泰姆	SOP-8Fp1嘉泰姆
CXSD62398Fp1嘉泰姆	4.5Fp1嘉泰姆	27Fp1嘉泰姆	RSENSEFp1嘉泰姆	ADJFp1嘉泰姆	0.7Fp1嘉泰姆	93Fp1嘉泰姆	ADJFp1嘉泰姆	Asynchronous Voltage Mode ControllerFp1嘉泰姆	MSOP-10(FD)Fp1嘉泰姆