1.5A的电流宽输入电压2.3V至6V励磁涌流限制及软起动CXSD62317双高效脉冲宽度调制PWM降压DC转换器

CXSD62317是一种双高效脉冲宽度调制（PWM）降压DC/DC转换器。它能够在宽输入电压范围内输出1.5A的电流2.3V至6V，CXSD62317非常适合为便携式电子设备供电从单电池锂离子电池或其他电源，如手机，掌上电脑和其他手持设备。有两种操作模式。脉宽调制/低损耗
自动切换和关机模式。低RDS（ON）的内同步整流器降低了在PWM模式下的传导损耗。在实际应用中不需要外部肖特基二极管申请。

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 CXSD62317 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC/DC 

converter. It is capable of delivering 1.5A output current over a wide input voltage range from 

2.3V to 6V, the CXSD62317 is ideally suited for portable electronic devices that are powered 

from 1-cell Li-ion battery or from other power sources within the range such as cellular phones,

PDAs and other handheld devices. Two operational modes are available. PWM/Low-Dropout 

auto-switch and shutdown modes. Internal synchronous rectifier with low RDS(ON) dramatically

 reduces conduction loss at PWM mode. No external Schottky diode is required in practical 

application. The CXSD62317 enters Low-Dropout mode when normal PWM cannot provide 

regulated output voltage by continuously turning on the upper PMOS. The CXSD62317 enter

 shutdown Mode And consumes less than 0.1μA when EN pin  is pulled low.

   产品特点 返回TOP

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              High Efficiency: Up to 96%

1.5MHz Constant Frequency Operation

1.5A Output Current

No Schottky Diode Required

2.3V to 6V Input Voltage Range

Output Voltage as Low as 0.6V

Low Quiescent Current: 35μA

Thermal Fault Protection

Inrush Current Limit and Soft Start

<1μA Shutdown Current

Small 12-Lead WDFN package

   应用范围 返回TOP

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Cellular and Smart Phones

Personal Information Appliances

Wireless and DSL Modems

MP3 Players

Digital Still and Video Cameras

   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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双输出转降压换器Dual Output Regulator (Power Switch Integrated)
Part Number	Function	Vin(V)	Iout	Fsw	VREF(V)	HSFET Ron(Ω)	LSFET Ron(Ω)	Special Function	Package
CXSD62316	双通道降压	2～6	0.8 A	1.5MHz	0.6	0.35	0.3	Int SS/Comp	DFN3x3-10
CXSD62317	双通道降压	2.3～6	1.5 A	1.5MHz	0.6	0.1	0.09	Int SS/Comp	DFN3x3-12
CXSD62318	双通道降压	2.3～6	2 A	1.5MHz	0.6 V	0.1	0.09	Int SS/Comp	ESOP8