700mA输出电流高效率同步脉宽调制降压型DC/DC转换器CXSD6108 1.0MHz/1.4MHz开关频率100%占空比

CXSD6108是一款高效率的同步、脉宽调制降压型DC/DC转换器，工作电压范围为2.2V至5.5V。此功能使CXSD6108适合单锂离子电池供电的应用。100%占空比能力延长便携式电池寿命器件，当静态电流为200μA且无负载时，降至<1μA关闭中。

目录

1.产品概述                       2.产品特点
3.应用范围                       4.下载产品资料PDF文档 
5.产品封装图                     6.电路原理图                   
7.功能概述                        8.相关产品

一,产品概述(General Description)      

   The CXSD6108 is high efficiency synchronous,PWM step-down DC/DC converters working under an input voltage range from 2.2V to 5.5V.
This feature makes the CXSD6108 suitable for single Li-Lon battery-powered applications. 100% duty cycle capability extends battery life in portable
devices, while the quiescent current is 200μA with no load, and drops to<1μA
in shutdown.
   The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.0MHz/1.4MHz switching frequency allows the
using of tiny, low profile inductors and ceramic capacitors, which minimized
overall solution footprint.
  The CXSD6108 converters are available in the industry standard TSOT/
SOT-23-5L  power packages (or upon request)
二.产品特点(Features)

     Up to 95% Efficiency
Current Mode Operation for Excellent Line
and Load Transient Response
700mA Output Current
Low Quiescent Current: 200μA
Output Voltage: 0.6V ～ 5.5V
Automatic PWM/PFM Mode Switching
No Schottky Diode Required
Frequency Operation: 1.0MHz for Fixed
Output Voltage and 1.4MHz for Adjustable
Output Voltage
Short-Circuit Protection
Shutdown Quiescent Current:<1μA
Low Profile TSOT/ SOT-23-5L Package
(lead-free packaging is now available)
三,应用范围 (Applications)

Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
Portable media players
PC cards
四.技术规格书下载（产品PDF）

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 (Package)


六.电路原理图

七,功能概述

Power Dissipation………………………………………………………………………Internally Iimited
Input Voltage…………………………………………………………………………………..-0.3V ～ +6V
Output Voltage……………………………………………………………………….…….....-0.3V ～ +6V
EN,SW Pin Voltage……………………..………………..……………………...……-0.3V ～ (VIN+0.3)V
SW Pin Current….………………………………………………………………...……………………..1.3A
Operating Temperature Range(Note 2) ………………………………………………...-40℃ ～ +85℃
Junction Temperature ………………………………………………………...…………-40℃ ～ +125℃
Storage Temperature Range ………………………………………………………….-65℃ ～ +150℃
Lead Temperature (Soldering,10 sec.) ………………………………………..…………………..+265℃
八,相关芯片选择指南            更多同类产品......

DC-DC降压
Model	VIN (V)	VOUT (V)	ISW	FOSC(MHz)	Package
CXSD6106	0.6V ～5V	0.6 ～ 5.5	1.3A	1~1.4	SOT-23-5L
CXSD6107A	5V~16V	1.2V~16V	2A	400kHz	SOP-8L
CXSD6108	2.5 ～ 5.5	0.6 ～ 5.5	1.3A	1~1.4	SOT-23-5L
CXSD6109	2.5 ～ 5.5	0.6V ～ 5.5V	700mA	1.4MHz	DFN3*3-10L
CXSD6110A	2.5V ～5.5V	0.6V ～ 5.5V	3A	950kHz	SOT-23-5L
CXSD6110	2.5V ～5.5V	0.6V ～ 5.5V	1.4A	950kHz	SOT-23-5L
CXSD6111F	10V ~ 30V	0.6V ～ 5.5V	2.5A	500k	SOP-8
CXSD6112	8V ～ 30V	0.6V ～ 5.5V	3.5A	500KHz	SOP8
CXSD6113	8V ～ 30V	0.6V ～ 5.5V	3.0A	500KHz	SOP8
CXSD6114	8V ～ 30V	0.6V ～ 5.5V	2A	500KHz	SOP8