CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V

CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V

产品型号：CXSD61034
产品类型：DC-DC转换器
产品系列：双路降压芯片
产品状态：量产
浏览次数：48 次
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产品简介

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

技术参数

输入电压范围 (VIN)≤ 2.5V-6.0VV
输出电压 (VOUT)双路可调V
输出电流 (IOUT)0.9AA
工作频率1.4MHzHz
转换效率95%%
封装类型DFN3*3-10
Topology双路降压芯片
Control methodPWM/PFM
Switching frequency1.4MHz
Protection过流/过压/过温
Features反馈电压:0.6V
Application双通道高压同步DC-DC降压IC
Operating temp-40℃~85℃
Reference design设计资料
Precision±5%
Power consumption0.1uA

产品详细介绍

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 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.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,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,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)

  • 五,电路原理图

    六.产品PDF文档 

    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！

     

  •  QQ截图20160419174301.jpg

  • 七,功能概述

  • SYMBOL

    PARAMETER

    CONDITIONS

    MIN

    TYP

    MAX

    UNITS

    VOUT

    Output Voltage

    I OUT = 100mA, R2(4)/R1(3)=2

    1.75

    1.80

    1.85

    V

    VIN

    Input Voltage Range

    		  

    2.5

    		  

    5.5

    V

    VFB

    Regulated Voltage

    TA = 25

    0.5880

    0.6

    0.6120

    V

    IFB

    Feedback Current

    		      

    ±30

    nA

    VFB

    VREF

    VIN=2.5V~5.5V

    		  

    0.03

    0.4

    %/V

    FOSC

    Oscillator Frequency

    VFB = 0.6V or VOUT = 100%

    1.1

    1.4

    1.7

    MHz

    IQ

    Quiescent Current

    VFB = 0.5V or VOUT = 90%, ILOAD = 0A

    		  

    200

    300

    A

    IS

    Shutdown Current

    VEN = 0V, VIN = 4.2V

    		  

    0.1

    1

    A

    IPK

    Peak Inductor Current

    VIN = 3V, VFB = 0.5V or VOUT = 90%,
    Duty Cycle < 35%

    0.75

    0.9

    1

    A

    RPFET

    RDS(ON) of P-Channel FET

    ISW = 100mA

    		  

    0.3

    		    

    RNFET

    RDS(ON) of N-Channel FET

    ISW = -100mA

    		  

    0.39

    		    

    EFFI

    Efficiency

    When connected to ext. components
    VIN=EN=3.6 V, IOUT=100mA

    		  

    93

    		  

    %

    VOUT

    VOUT Line Regulation

    VIN=2.5V~5.5V

    		  

    0.03

    0.3

    %/V

    VLOADREG

    VOUT Load Regulation

    		    

    0.33

    		  

    %

八,相关产品       更多同类产品......

双通道高压同步DC-DC降压IC

 型号

 输入耐压

 输出电压

 输出电流

反馈

电压

工作频率

效率

静态工

作电流

待机

电流 

 封装

CXSD61028

8V-35V

可调输出/带线损补偿

扩流4.2A/双通道带CC/CV模式

1.21V

100-500K可调

95%

14mA

100uA

ESOP8

CXSD61029

8V-30V

可调输出/带线损补偿

4.0A/双通道带CC/CV模式

1.2V

100KHz

96%

10mA

  

ESOP-8

CXSD61030

8V-40V

可调输出/带线损补偿

扩流4.2A/双通道带CC/CV模式

1.2V

100KHz

95%

10mA

  

SOP-8

CXSD61031

8V-40V

可调输出/带线损补偿

扩流6.0A/双通道带CC/CV模式

1.2V

100KHz

96%

10mA

  

ESOP-8

双路低压同步DC-DC降压IC

 型号

 输入耐压

 输出电压

输出电流

反馈

电压

 工作频率

效率

静态工

作电流

待机

电流 

 封装

CXSD61032

3.0V-6.0V

双路可调

1.5A

0.6V

1.5MHz

90%

  

10uA

ESOP-8

CXSD61033

2.3V-6.0V

双路可调

2A

0.6V

1.5MHz

90%

150uA

0.1uA

ESOP-8

CXSD61034

2.5V-6.0V

双路可调

0.9A

0.6V

1.4MHz

95%

200uA

0.1uA

DFN3*3

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