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TOPz0U嘉泰姆

„ Drives Two N-Channel MOSFETs z0U嘉泰姆

„ Operates at 5V to 12V Supply Voltage z0U嘉泰姆

„ Voltage-Mode PWM Control z0U嘉泰姆

„ Fast Transient Response z0U嘉泰姆

„ 0.8V, 2% Accuracy Reference Voltage z0U嘉泰姆

„ Internal Soft Start z0U嘉泰姆

„ Constant 300kHz Switching Frequency z0U嘉泰姆

„ Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) z0U嘉泰姆

„ Output Under-Voltage Protectionz0U嘉泰姆

应用范围 返回TOPz0U嘉泰姆

„ High Power DC-DC Regulators z0U嘉泰姆

„ Low-Voltage Distributed Power Suppliesz0U嘉泰姆

技术规格书（产品PDF) 返回TOP z0U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！z0U嘉泰姆

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产品封装图 返回TOPz0U嘉泰姆

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电路原理图 返回TOPz0U嘉泰姆

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Synchronous Step Down Controllerz0U嘉泰姆
Part NO.z0U嘉泰姆	Vin(V)z0U嘉泰姆 minz0U嘉泰姆	Vin(V)z0U嘉泰姆 maxz0U嘉泰姆	IOUTz0U嘉泰姆 (A)z0U嘉泰姆	FSWz0U嘉泰姆 (kHz)z0U嘉泰姆	FBz0U嘉泰姆 (V)z0U嘉泰姆	Dutyz0U嘉泰姆 max(%)z0U嘉泰姆	VOUTz0U嘉泰姆 (ms)z0U嘉泰姆	Notez0U嘉泰姆	Packagez0U嘉泰姆
CXSD62393z0U嘉泰姆	2.5z0U嘉泰姆	5.5z0U嘉泰姆	--z0U嘉泰姆	300z0U嘉泰姆	1z0U嘉泰姆	100z0U嘉泰姆	15z0U嘉泰姆	EXT, VDD, GND, CE, FB, Voltage Modez0U嘉泰姆	SOT-23-5z0U嘉泰姆
CXSD62394z0U嘉泰姆	5z0U嘉泰姆	12z0U嘉泰姆	OCSETz0U嘉泰姆	300z0U嘉泰姆	0.8z0U嘉泰姆	--z0U嘉泰姆	14z0U嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXz0U嘉泰姆	SOP-8z0U嘉泰姆
CXSD62395z0U嘉泰姆	--z0U嘉泰姆	24z0U嘉泰姆	OCSETz0U嘉泰姆	300z0U嘉泰姆	0.8z0U嘉泰姆	--z0U嘉泰姆	8z0U嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXz0U嘉泰姆	SOP-8z0U嘉泰姆
CXSD62396z0U嘉泰姆	10z0U嘉泰姆	28z0U嘉泰姆	--z0U嘉泰姆	400z0U嘉泰姆	0.8z0U嘉泰姆	80z0U嘉泰姆	3z0U嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBz0U嘉泰姆	TSOT-23-8z0U嘉泰姆
CXSD62397z0U嘉泰姆	5z0U嘉泰姆	23z0U嘉泰姆	OCSETz0U嘉泰姆	400z0U嘉泰姆	0.8z0U嘉泰姆	80z0U嘉泰姆	8z0U嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTz0U嘉泰姆	SOP-8z0U嘉泰姆
CXSD62398z0U嘉泰姆	4.5z0U嘉泰姆	27z0U嘉泰姆	RSENSEz0U嘉泰姆	ADJz0U嘉泰姆	0.7z0U嘉泰姆	93z0U嘉泰姆	ADJz0U嘉泰姆	Asynchronous Voltage Mode Controllerz0U嘉泰姆	MSOP-10(FD)z0U嘉泰姆