大功率DC转换器PWM控制CXSD62395同步整流buck拓扑中驱动两个N通道mosfet快速瞬态响应恒定300kHz开关频率

The CXSD62395 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 CXSD62395 integrates all of the control, and protection functions into a single package. The CXSD62395 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 CXSD62395 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62395 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TOP4Pt嘉泰姆

Drives Two N-Channel MOSFETs 4Pt嘉泰姆

Operates at 5V Supply Voltage 4Pt嘉泰姆

Voltage-Mode PWM Control 4Pt嘉泰姆

Fast Transient Response 4Pt嘉泰姆

0.8V, 2% Accuracy Reference Voltage 4Pt嘉泰姆

Internal Soft Start 4Pt嘉泰姆

Constant 300kHz Switching Frequency 4Pt嘉泰姆

Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) 4Pt嘉泰姆

Output Under-Voltage Protection4Pt嘉泰姆

应用范围 返回TOP4Pt嘉泰姆

16V to 30V Input High Power DC-DC Regulators 4Pt嘉泰姆

Low-Voltage Distributed Power Supplies4Pt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！4Pt嘉泰姆

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产品封装图 返回TOP4Pt嘉泰姆

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Synchronous Step Down Controller4Pt嘉泰姆
Part NO.4Pt嘉泰姆	Vin(V)4Pt嘉泰姆 min4Pt嘉泰姆	Vin(V)4Pt嘉泰姆 max4Pt嘉泰姆	IOUT4Pt嘉泰姆 (A)4Pt嘉泰姆	FSW4Pt嘉泰姆 (kHz)4Pt嘉泰姆	FB4Pt嘉泰姆 (V)4Pt嘉泰姆	Duty4Pt嘉泰姆 max(%)4Pt嘉泰姆	VOUT4Pt嘉泰姆 (ms)4Pt嘉泰姆	Note4Pt嘉泰姆	Package4Pt嘉泰姆
CXSD623934Pt嘉泰姆	2.54Pt嘉泰姆	5.54Pt嘉泰姆	--4Pt嘉泰姆	3004Pt嘉泰姆	14Pt嘉泰姆	1004Pt嘉泰姆	154Pt嘉泰姆	EXT, VDD, GND, CE, FB, Voltage Mode4Pt嘉泰姆	SOT-23-54Pt嘉泰姆
CXSD623944Pt嘉泰姆	54Pt嘉泰姆	124Pt嘉泰姆	OCSET4Pt嘉泰姆	3004Pt嘉泰姆	0.84Pt嘉泰姆	--4Pt嘉泰姆	144Pt嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LX4Pt嘉泰姆	SOP-84Pt嘉泰姆
CXSD623954Pt嘉泰姆	--4Pt嘉泰姆	244Pt嘉泰姆	OCSET4Pt嘉泰姆	3004Pt嘉泰姆	0.84Pt嘉泰姆	--4Pt嘉泰姆	84Pt嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LX4Pt嘉泰姆	SOP-84Pt嘉泰姆
CXSD623964Pt嘉泰姆	104Pt嘉泰姆	284Pt嘉泰姆	--4Pt嘉泰姆	4004Pt嘉泰姆	0.84Pt嘉泰姆	804Pt嘉泰姆	34Pt嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FB4Pt嘉泰姆	TSOT-23-84Pt嘉泰姆
CXSD623974Pt嘉泰姆	54Pt嘉泰姆	234Pt嘉泰姆	OCSET4Pt嘉泰姆	4004Pt嘉泰姆	0.84Pt嘉泰姆	804Pt嘉泰姆	84Pt嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BST4Pt嘉泰姆	SOP-84Pt嘉泰姆
CXSD623984Pt嘉泰姆	4.54Pt嘉泰姆	274Pt嘉泰姆	RSENSE4Pt嘉泰姆	ADJ4Pt嘉泰姆	0.74Pt嘉泰姆	934Pt嘉泰姆	ADJ4Pt嘉泰姆	Asynchronous Voltage Mode Controller4Pt嘉泰姆	MSOP-10(FD)4Pt嘉泰姆