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TOPtES嘉泰姆

„ Drives Two N-Channel MOSFETs tES嘉泰姆

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

„ Voltage-Mode PWM Control tES嘉泰姆

„ Fast Transient Response tES嘉泰姆

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

„ Internal Soft Start tES嘉泰姆

„ Constant 300kHz Switching Frequency tES嘉泰姆

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

„ Output Under-Voltage ProtectiontES嘉泰姆

应用范围 返回TOPtES嘉泰姆

„ High Power DC-DC Regulators tES嘉泰姆

„ Low-Voltage Distributed Power SuppliestES嘉泰姆

技术规格书（产品PDF) 返回TOP tES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！tES嘉泰姆

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产品封装图 返回TOPtES嘉泰姆

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电路原理图 返回TOPtES嘉泰姆

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Synchronous Step Down ControllertES嘉泰姆
Part NO.tES嘉泰姆	Vin(V)tES嘉泰姆 mintES嘉泰姆	Vin(V)tES嘉泰姆 maxtES嘉泰姆	IOUTtES嘉泰姆 (A)tES嘉泰姆	FSWtES嘉泰姆 (kHz)tES嘉泰姆	FBtES嘉泰姆 (V)tES嘉泰姆	DutytES嘉泰姆 max(%)tES嘉泰姆	VOUTtES嘉泰姆 (ms)tES嘉泰姆	NotetES嘉泰姆	PackagetES嘉泰姆
CXSD62393tES嘉泰姆	2.5tES嘉泰姆	5.5tES嘉泰姆	--tES嘉泰姆	300tES嘉泰姆	1tES嘉泰姆	100tES嘉泰姆	15tES嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModetES嘉泰姆	SOT-23-5tES嘉泰姆
CXSD62394tES嘉泰姆	5tES嘉泰姆	12tES嘉泰姆	OCSETtES嘉泰姆	300tES嘉泰姆	0.8tES嘉泰姆	--tES嘉泰姆	14tES嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXtES嘉泰姆	SOP-8tES嘉泰姆
CXSD62395tES嘉泰姆	--tES嘉泰姆	24tES嘉泰姆	OCSETtES嘉泰姆	300tES嘉泰姆	0.8tES嘉泰姆	--tES嘉泰姆	8tES嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXtES嘉泰姆	SOP-8tES嘉泰姆
CXSD62396tES嘉泰姆	10tES嘉泰姆	28tES嘉泰姆	--tES嘉泰姆	400tES嘉泰姆	0.8tES嘉泰姆	80tES嘉泰姆	3tES嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBtES嘉泰姆	TSOT-23-8tES嘉泰姆
CXSD62397tES嘉泰姆	5tES嘉泰姆	23tES嘉泰姆	OCSETtES嘉泰姆	400tES嘉泰姆	0.8tES嘉泰姆	80tES嘉泰姆	8tES嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTtES嘉泰姆	SOP-8tES嘉泰姆
CXSD62398tES嘉泰姆	4.5tES嘉泰姆	27tES嘉泰姆	RSENSEtES嘉泰姆	ADJtES嘉泰姆	0.7tES嘉泰姆	93tES嘉泰姆	ADJtES嘉泰姆	Asynchronous Voltage Mode ControllertES嘉泰姆	MSOP-10(FD)tES嘉泰姆