CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input vol

目录Xfz嘉泰姆

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

一,产品概述(General Description)      Xfz嘉泰姆

   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 withXfz嘉泰姆
no load, and drops to < 1 A in shutdown.Xfz嘉泰姆
    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.Xfz嘉泰姆
     The  CXSD61034 converters are available in the industry standard DFN3*3-10L power packages(or upon request).Xfz嘉泰姆
二.产品特点(Features)Xfz嘉泰姆

Up to 95% EfficiencyXfz嘉泰姆
Current mode operation for excellent line andXfz嘉泰姆
load transient responseXfz嘉泰姆
Low quiescent current: 460 AXfz嘉泰姆
Low Switch on Resistance RDS(ON), InternalXfz嘉泰姆
Switch: 0.35Xfz嘉泰姆
Output voltage 0.6V 5.5VXfz嘉泰姆
Automatic PWM/PFM mode switchingXfz嘉泰姆
No Schottky diode requiredXfz嘉泰姆
1.4MHz fixed frequency switchingXfz嘉泰姆
Short-Circuit protectionXfz嘉泰姆
Shutdown quiescent current: < 1 AXfz嘉泰姆
Low profile DFN3*3-10L package (lead-freeXfz嘉泰姆
packaging is now available)Xfz嘉泰姆
三,应用范围 (Applications)Xfz嘉泰姆

 Digital cameras and MP3Xfz嘉泰姆
Palmtop computers / PDAsXfz嘉泰姆
Cellular phonesXfz嘉泰姆
Wireless handsets and DSL modemsXfz嘉泰姆
PC cardsXfz嘉泰姆
Portable media playersXfz嘉泰姆
四,产品封装图 (Package)Xfz嘉泰姆

Xfz嘉泰姆
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)Xfz嘉泰姆

SYMBOLXfz嘉泰姆

PARAMETERXfz嘉泰姆

CONDITIONSXfz嘉泰姆

MINXfz嘉泰姆

TYPXfz嘉泰姆

MAXXfz嘉泰姆

UNITSXfz嘉泰姆

VOUTXfz嘉泰姆

Output VoltageXfz嘉泰姆

I OUT = 100mA, R2(4)/R1(3)=2Xfz嘉泰姆

1.75Xfz嘉泰姆

1.80Xfz嘉泰姆

1.85Xfz嘉泰姆

VXfz嘉泰姆

VINXfz嘉泰姆

Input Voltage RangeXfz嘉泰姆

2.5Xfz嘉泰姆

5.5Xfz嘉泰姆

VXfz嘉泰姆

VFBXfz嘉泰姆

Regulated VoltageXfz嘉泰姆

TA = 25Xfz嘉泰姆

0.5880Xfz嘉泰姆

0.6Xfz嘉泰姆

0.6120Xfz嘉泰姆

VXfz嘉泰姆

IFBXfz嘉泰姆

Feedback CurrentXfz嘉泰姆

±30Xfz嘉泰姆

nAXfz嘉泰姆

VFBXfz嘉泰姆

VREFXfz嘉泰姆

VIN=2.5V~5.5VXfz嘉泰姆

0.03Xfz嘉泰姆

0.4Xfz嘉泰姆

%/VXfz嘉泰姆

FOSCXfz嘉泰姆

Oscillator FrequencyXfz嘉泰姆

VFB = 0.6V or VOUT = 100%Xfz嘉泰姆

1.1Xfz嘉泰姆

1.4Xfz嘉泰姆

1.7Xfz嘉泰姆

MHzXfz嘉泰姆

IQXfz嘉泰姆

Quiescent CurrentXfz嘉泰姆

VFB = 0.5V or VOUT = 90%, ILOAD = 0AXfz嘉泰姆

200Xfz嘉泰姆

300Xfz嘉泰姆

AXfz嘉泰姆

ISXfz嘉泰姆

Shutdown CurrentXfz嘉泰姆

VEN = 0V, VIN = 4.2VXfz嘉泰姆

0.1Xfz嘉泰姆

1Xfz嘉泰姆

AXfz嘉泰姆

IPKXfz嘉泰姆

Peak Inductor CurrentXfz嘉泰姆

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

0.75Xfz嘉泰姆

0.9Xfz嘉泰姆

1Xfz嘉泰姆

AXfz嘉泰姆

RPFETXfz嘉泰姆

RDS(ON) of P-Channel FETXfz嘉泰姆

ISW = 100mAXfz嘉泰姆

0.3Xfz嘉泰姆

RNFETXfz嘉泰姆

RDS(ON) of N-Channel FETXfz嘉泰姆

ISW = -100mAXfz嘉泰姆

0.39Xfz嘉泰姆

EFFIXfz嘉泰姆

EfficiencyXfz嘉泰姆

When connected to ext. componentsXfz嘉泰姆
VIN=EN=3.6 V, IOUT=100mAXfz嘉泰姆

93Xfz嘉泰姆

%Xfz嘉泰姆

VOUTXfz嘉泰姆

VOUT Line RegulationXfz嘉泰姆

VIN=2.5V~5.5VXfz嘉泰姆

0.03Xfz嘉泰姆

0.3Xfz嘉泰姆

%/VXfz嘉泰姆

VLOADREGXfz嘉泰姆

VOUT Load RegulationXfz嘉泰姆

0.33Xfz嘉泰姆

%Xfz嘉泰姆

双通道高压同步DC-DC降压ICXfz嘉泰姆

 型号Xfz嘉泰姆

 输入耐压Xfz嘉泰姆

 输出电压Xfz嘉泰姆

 输出电流Xfz嘉泰姆

反馈Xfz嘉泰姆

电压Xfz嘉泰姆

工作频率Xfz嘉泰姆

效率Xfz嘉泰姆

静态工Xfz嘉泰姆

作电流Xfz嘉泰姆

待机Xfz嘉泰姆

电流 Xfz嘉泰姆

 封装Xfz嘉泰姆

CXSD61028Xfz嘉泰姆

8V-35VXfz嘉泰姆

可调输出/带线损补偿Xfz嘉泰姆

扩流4.2A/双通道带CC/CV模式Xfz嘉泰姆

1.21VXfz嘉泰姆

100-500K可调Xfz嘉泰姆

95%Xfz嘉泰姆

14mAXfz嘉泰姆

100uAXfz嘉泰姆

ESOP8Xfz嘉泰姆

CXSD61029Xfz嘉泰姆

8V-30VXfz嘉泰姆

可调输出/带线损补偿Xfz嘉泰姆

4.0A/双通道带CC/CV模式Xfz嘉泰姆

1.2VXfz嘉泰姆

100KHzXfz嘉泰姆

96%Xfz嘉泰姆

10mAXfz嘉泰姆

ESOP-8Xfz嘉泰姆

CXSD61030Xfz嘉泰姆

8V-40VXfz嘉泰姆

可调输出/带线损补偿Xfz嘉泰姆

扩流4.2A/双通道带CC/CV模式Xfz嘉泰姆

1.2VXfz嘉泰姆

100KHzXfz嘉泰姆

95%Xfz嘉泰姆

10mAXfz嘉泰姆

SOP-8Xfz嘉泰姆

CXSD61031Xfz嘉泰姆

8V-40VXfz嘉泰姆

可调输出/带线损补偿Xfz嘉泰姆

扩流6.0A/双通道带CC/CV模式Xfz嘉泰姆

1.2VXfz嘉泰姆

100KHzXfz嘉泰姆

96%Xfz嘉泰姆

10mAXfz嘉泰姆

ESOP-8Xfz嘉泰姆

双路低压同步DC-DC降压ICXfz嘉泰姆

 型号Xfz嘉泰姆

 输入耐压Xfz嘉泰姆

 输出电压Xfz嘉泰姆

输出电流Xfz嘉泰姆

反馈Xfz嘉泰姆

电压Xfz嘉泰姆

 工作频率Xfz嘉泰姆

效率Xfz嘉泰姆

静态工Xfz嘉泰姆

作电流Xfz嘉泰姆

待机Xfz嘉泰姆

电流 Xfz嘉泰姆

 封装Xfz嘉泰姆

CXSD61032Xfz嘉泰姆

3.0V-6.0VXfz嘉泰姆

双路可调Xfz嘉泰姆

1.5AXfz嘉泰姆

0.6VXfz嘉泰姆

1.5MHzXfz嘉泰姆

90%Xfz嘉泰姆

10uAXfz嘉泰姆

ESOP-8Xfz嘉泰姆

CXSD61033Xfz嘉泰姆

2.3V-6.0VXfz嘉泰姆

双路可调Xfz嘉泰姆

2AXfz嘉泰姆

0.6VXfz嘉泰姆

1.5MHzXfz嘉泰姆

90%Xfz嘉泰姆

150uAXfz嘉泰姆

0.1uAXfz嘉泰姆

ESOP-8Xfz嘉泰姆

CXSD61034Xfz嘉泰姆

2.5V-6.0VXfz嘉泰姆

双路可调Xfz嘉泰姆

0.9AXfz嘉泰姆

0.6VXfz嘉泰姆

1.4MHzXfz嘉泰姆

95%Xfz嘉泰姆

200uAXfz嘉泰姆

0.1uAXfz嘉泰姆

DFN3*3Xfz嘉泰姆