电压模式脉宽调制控制CXSD62397快速瞬态响应同步整流buck拓扑中驱动两个N通道mosfet大功率DC转换器恒定300kHz开关频率

The CXSD62397 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 CXSD62397 integrates all of the control, bootstrap diode and protection functions into a single package. The CXSD62397 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 CXSD62397 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62397 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TOPO9h嘉泰姆

„ Drives Two N-Channel MOSFETs O9h嘉泰姆

„ Operates at 5V to 24V Supply Voltage O9h嘉泰姆

„ Internal Bootstrap Diode Circuit O9h嘉泰姆

„ Voltage-Mode PWM Control O9h嘉泰姆

„ Fast Transient Response O9h嘉泰姆

„ 0.8V, 2% Accuracy Reference Voltage O9h嘉泰姆

„ Internal Soft Start O9h嘉泰姆

„ Constant 300kHz Switching Frequency O9h嘉泰姆

„ Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) O9h嘉泰姆

„ Output Under-Voltage ProtectionO9h嘉泰姆

应用范围 返回TOPO9h嘉泰姆

„ 16V to 30V Input High Power DC-DC Regulators O9h嘉泰姆

„ Low-Voltage Distributed Power SuppliesO9h嘉泰姆

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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！O9h嘉泰姆

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Synchronous Step Down ControllerO9h嘉泰姆
Part NO.O9h嘉泰姆	Vin(V)O9h嘉泰姆 minO9h嘉泰姆	Vin(V)O9h嘉泰姆 maxO9h嘉泰姆	IOUTO9h嘉泰姆 (A)O9h嘉泰姆	FSWO9h嘉泰姆 (kHz)O9h嘉泰姆	FBO9h嘉泰姆 (V)O9h嘉泰姆	DutyO9h嘉泰姆 max(%)O9h嘉泰姆	VOUTO9h嘉泰姆 (ms)O9h嘉泰姆	NoteO9h嘉泰姆	PackageO9h嘉泰姆
CXSD62393O9h嘉泰姆	2.5O9h嘉泰姆	5.5O9h嘉泰姆	--O9h嘉泰姆	300O9h嘉泰姆	1O9h嘉泰姆	100O9h嘉泰姆	15O9h嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModeO9h嘉泰姆	SOT-23-5O9h嘉泰姆
CXSD62394O9h嘉泰姆	5O9h嘉泰姆	12O9h嘉泰姆	OCSETO9h嘉泰姆	300O9h嘉泰姆	0.8O9h嘉泰姆	--O9h嘉泰姆	14O9h嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXO9h嘉泰姆	SOP-8O9h嘉泰姆
CXSD62395O9h嘉泰姆	--O9h嘉泰姆	24O9h嘉泰姆	OCSETO9h嘉泰姆	300O9h嘉泰姆	0.8O9h嘉泰姆	--O9h嘉泰姆	8O9h嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXO9h嘉泰姆	SOP-8O9h嘉泰姆
CXSD62396O9h嘉泰姆	10O9h嘉泰姆	28O9h嘉泰姆	--O9h嘉泰姆	400O9h嘉泰姆	0.8O9h嘉泰姆	80O9h嘉泰姆	3O9h嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBO9h嘉泰姆	TSOT-23-8O9h嘉泰姆
CXSD62397O9h嘉泰姆	5O9h嘉泰姆	23O9h嘉泰姆	OCSETO9h嘉泰姆	400O9h嘉泰姆	0.8O9h嘉泰姆	80O9h嘉泰姆	8O9h嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTO9h嘉泰姆	SOP-8O9h嘉泰姆
CXSD62398O9h嘉泰姆	4.5O9h嘉泰姆	27O9h嘉泰姆	RSENSEO9h嘉泰姆	ADJO9h嘉泰姆	0.7O9h嘉泰姆	93O9h嘉泰姆	ADJO9h嘉泰姆	Asynchronous Voltage Mode ControllerO9h嘉泰姆	MSOP-10(FD)O9h嘉泰姆