异步降压模式控制器CXSD62398输入电压4.5V至27V电压前馈补偿可编程闭环软启动固定频率35~500KHz

CXSD62398采用电压模式反馈工作，并具有前馈输入电压补偿，可即时响应输入电压变化。内部700mV参考电压被调至1%，提供准确的输出电压。时钟频率、软启动和过电流限制都很容易由单个外部组件编程。过电压保护（OVP）可以通过设置外部电阻进行调整。实现输入欠压闭锁。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXSD62398 is a flexible asynchronous buck controller with a built in 200mA driver for P-channel FETs. The input voltage is up to 27V. The CXSD62398 operates with voltage-mode feedback and has feed-forward input-voltage compensation that responds instantly to input voltage change. The internal 700mV reference is trimmed to 1%, giving accurate output voltages. Clock frequency, soft-start, and overcurrent limit are each easily programmed by a single, external component. Over voltage protection (OVP) can be adjusted by setting the external resistors. Input under-voltage lockout is implemented. The CXSD62398 is available in 10-pin MSOP exposed pad package.

   产品特点 返回TOP

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„ Input Voltage: 4.5V to 27V 

„ Output Voltage (700mV to 90% VIN) 

„ 200mA Internal P-Channel FET Driver

„ Voltage Feed-Forward Compensation

„ Undervoltage Lockout 

„ Hiccup Overcurrent Fault Recovery 

„ Programmable Fixed Frequency (35~500KHz) Operation 

„ Programmable Short Circuit Protection 

„ 700 mV 1% Reference Voltage 

„ Programmable Closed Loop Soft Start 

„ Disable Function Available 

„ Programmable Over-Voltage Protection 

„ MSOP-10 with Exposed Pad Package Available

   应用范围 返回TOP

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„ Telecom 

„ DSL/Cable Modems 

„ Scanners 

„ Power Applications

   技术规格书（产品PDF) 返回TOP 

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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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

 

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Synchronous Step Down Controller
Part   NO.	Vin(V) min	Vin(V) max	IOUT (A)	FSW (kHz)	FB (V)	Duty max(%)	VOUT (ms)	Note	Package
CXSD62393	2.5	5.5	--	300	1	100	15	EXT, VDD, GND,  CE, FB, Voltage Mode	SOT-23-5
CXSD62394	5	12	OCSET	300	0.8	--	14	BST, DH, GND, DL, VCC, FB, OC, LX	SOP-8
CXSD62395	--	24	OCSET	300	0.8	--	8	BST, DH, GND, DL, VCC, FB, OC, LX	SOP-8
CXSD62396	10	28	--	400	0.8	80	3	VCC, DL, GND, DH, BST, LX, VIN, FB	TSOT-23-8
CXSD62397	5	23	OCSET	400	0.8	80	8	DH, LX, DL, GND, FB, OC, VCC, BST	SOP-8
CXSD62398	4.5	27	RSENSE	ADJ	0.7	93	ADJ	Asynchronous  Voltage Mode Controller	MSOP-10(FD)