CXSD62018 DC-to-DC step-down switching regulator capable of delivering up to 2.5A of output current Current mode PWM control

CXSD62018 On top of the integrated internal synchronous rectifier
that eliminates external Schottky diode, CXSD62018 also employs a proprietary
control scheme that switches the device into a power save mode during light
load, thereby extending the range of high efficiency operation

                          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

一.产品概述

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  The CXSD62018 is a wide input range, high-efficiency, DC-to-DC step-down 

switching regulator, capable of delivering up to 2.5A of output current. Its

output can be dynamically controlled by I 2 C interface. Current mode PWM 

control allows the use of small external components, such as ceramic input 

and output caps, as well as small inductors, while still providing low 

output ripples. On top of the integrated internal synchronous rectifier 

that eliminates external Schottky diode, CXSD62018 also employs a proprietary 

control scheme that switches the device into a power save mode during light 

load, thereby extending the range of high efficiency operation. Therefore, 

CXSD62018 is a much superior solution in comparison to other competitions in 

terms of efficiency and cost. Cycle-by-cycle current limit provides output 

short-circuit protection and an input OVP function guards CXSD62018 against 

possible input voltage surge. Overall, CXSD62018 is a highly efficient and 

robust solution for DC-DC step-down applications that requires wide input 

ranges. ECXSD62018is housed in anESOP8 Package.

二.产品特点

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◆I2C Dynamic Output Control  

◆Wide Input Operating Range from 4.2V to 18V  

◆High Efficiency:  

    ◆Up to 90%at Light Load 

 ◆Up to 95% at Heavy Load  

◆Capable of Delivering 2.5A  

◆Input OVP at 20V  

◆No External Schottky Diode Needed  

◆Thermal shutdown and UVLO

三.应用范围

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◆Smart TVs, Smart Set Top Box  

◆Tablet computer, MID    

四.技术规格书（产品PDF)

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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！

 

五.产品封装图

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六.电路原理图

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七.相关芯片选择指南

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DC-DC>同步降压
Device	Device	Architecture	VIN	VIN	VOUT	VOUT	IOUT
	Description		(min)	(max)	(min)	(max)	(max)
			(V)	(V)	(V)	(V)	(A)
CXSD62018	I2C 18V/2.5A同步降压	I2C控制	4.2	18	0.7	12	2.5
CXSD6219	18V/2A同步降压	外部补偿	4.2	18	0.923	6	2
CXSD6219B	18V/2.5A同步降压	外部补偿	4.2	18	0.923	6	2
CXSD6220	18V/3A同步降压	外部补偿	4.2	18	0.923	6	3
CXSD6221	18V/4A同步降压	外部补偿	4.2	18	0.923	9	4
CXSD6222	18V/2A同步降压	内部补偿	4.2	18	0.8	6	2
CXSD6223	24V/1.2A异步降压	内部补偿	4.2	24	0.81	6	1.2
CXSD6224	24V/0.3A异步降压	内部补偿	4.2	24	0.81	6	0.3
CXSD6225	42V/1.5A异步降压	内部补偿	4.2	38	0.8	6	1.5
CXSD6226	36V/3A异步降压	内部补偿	4.2	36	0.85	12	3
CXSD6227	36V/3.5A异步降压	内部补偿	4.2	36	0.8	12	3.5
CXSD6228	42V/0.6A异步降压	内部补偿	4.2	38	0.8	12	0.6
CXSD6229	42V/0.6A异步降压	内部补偿	4.2	38	0.8	12	0.6
CXSD6230	42V/0.4A异步降压	内部补偿	4.2	38	0.8	6	0.4
CXSD6231	7V/1.2A同步降压	内部补偿	2.6	7	0.6	5	1.2
CXSD6232	6V/1.2A同步降压	内部补偿	2.6	6	0.6	5	1
CXSD6233	6V/2A 3MHz同步降压	内部补偿	2.6	5.5	0.6	5	2
CXSD6234	6V/2A 3MHz同步降压	内部补偿	2.6	5.5	0.6	5	2
CXSD6235	6V/3A同步降压	外部补偿	3.6	6	0.8	5	3
CXSD6235A	6V/3A同步降压	外部补偿	2.5	6	0.8	5	3
CXSD6235B	6V/3A同步降压	外部补偿	2.5	6	0.8	5	3
CXSD6236	6V/3.5A快速响应同步降压	内部补偿	2.6	5.5	0.45	5	3.5
CXSD6237	6V/1.2A同步降压	内部补偿	2.6	6	0.6	5	1
CXSD6238	I2C控制5A快速响应同步降压	内部补偿	2.5	5.5	0.6	1.23	3.5
CXSD6239	6V/1.2A同步降压	内部补偿	2.6	6	0.6	5	1