CXSD61034 is high efficiency synchronous, dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes CXSD61034 suitable for single Li-Lon battery

目录09b嘉泰姆

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</span>                     6.电路原理图</span>                   
7.功能概述                        8.相关产品09b嘉泰姆

一,产品概述(General Description)         
      The CXSD61034 is high efficiency synchronous, dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes the CXSD61034 suitable for single Li-Lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200 A with
no load, and drops to < 1 A in shutdown.
    The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.4 MHz fixed switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.
     The  CXSD61034 converters are available in the industry standard DFN3*3-10L power packages(or upon request).
二</span>.产品特点(Features)
Up to 95% Efficiency
Current mode operation for excellent line and
load transient response
Low quiescent current: 460 A
Low Switch on Resistance RDS(ON), Internal
Switch: 0.35
Output voltage 0.6V 5.5V
Automatic PWM/PFM mode switching
No Schottky diode required
1.4MHz fixed frequency switching
Short-Circuit protection
Shutdown quiescent current: < 1 A
Low profile DFN3*3-10L package (lead-free
packaging is now available)
三</span>,应用范围 (Applications)
 Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
PC cards
Portable media players
四</span>,产品封装图 (Package)

PINNUMBERDFN3*3-10LPIN NAMEFUNCTION1EN1ON/OFF Control 1(High Enable)2FB1Output feedback 13VIN2Input 24GNDGround5SW2Switch Output 26EN2ON/OFF Control 2(High Enable)7FB2Output feedback 28VIN1Input 19GNDGround10SW1Switch Output 1(责任编辑：oumao18)09b嘉泰姆