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

目录dAR嘉泰姆

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

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

Up to 95% EfficiencydAR嘉泰姆
Current mode operation for excellent line anddAR嘉泰姆
load transient responsedAR嘉泰姆
Low quiescent current: 460 AdAR嘉泰姆
Low Switch on Resistance RDS(ON), InternaldAR嘉泰姆
Switch: 0.35dAR嘉泰姆
Output voltage 0.6V 5.5VdAR嘉泰姆
Automatic PWM/PFM mode switchingdAR嘉泰姆
No Schottky diode requireddAR嘉泰姆
1.4MHz fixed frequency switchingdAR嘉泰姆
Short-Circuit protectiondAR嘉泰姆
Shutdown quiescent current: < 1 AdAR嘉泰姆
Low profile DFN3*3-10L package (lead-freedAR嘉泰姆
packaging is now available)dAR嘉泰姆
三,应用范围 (Applications)dAR嘉泰姆

 Digital cameras and MP3dAR嘉泰姆
Palmtop computers / PDAsdAR嘉泰姆
Cellular phonesdAR嘉泰姆
Wireless handsets and DSL modemsdAR嘉泰姆
PC cardsdAR嘉泰姆
Portable media playersdAR嘉泰姆
四,产品封装图 (Package)dAR嘉泰姆

dAR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)dAR嘉泰姆

SYMBOLdAR嘉泰姆

PARAMETERdAR嘉泰姆

CONDITIONSdAR嘉泰姆

MINdAR嘉泰姆

TYPdAR嘉泰姆

MAXdAR嘉泰姆

UNITSdAR嘉泰姆

VOUTdAR嘉泰姆

Output VoltagedAR嘉泰姆

I OUT = 100mA, R2(4)/R1(3)=2dAR嘉泰姆

1.75dAR嘉泰姆

1.80dAR嘉泰姆

1.85dAR嘉泰姆

VdAR嘉泰姆

VINdAR嘉泰姆

Input Voltage RangedAR嘉泰姆

2.5dAR嘉泰姆

5.5dAR嘉泰姆

VdAR嘉泰姆

VFBdAR嘉泰姆

Regulated VoltagedAR嘉泰姆

TA = 25dAR嘉泰姆

0.5880dAR嘉泰姆

0.6dAR嘉泰姆

0.6120dAR嘉泰姆

VdAR嘉泰姆

IFBdAR嘉泰姆

Feedback CurrentdAR嘉泰姆

±30dAR嘉泰姆

nAdAR嘉泰姆

VFBdAR嘉泰姆

VREFdAR嘉泰姆

VIN=2.5V~5.5VdAR嘉泰姆

0.03dAR嘉泰姆

0.4dAR嘉泰姆

%/VdAR嘉泰姆

FOSCdAR嘉泰姆

Oscillator FrequencydAR嘉泰姆

VFB = 0.6V or VOUT = 100%dAR嘉泰姆

1.1dAR嘉泰姆

1.4dAR嘉泰姆

1.7dAR嘉泰姆

MHzdAR嘉泰姆

IQdAR嘉泰姆

Quiescent CurrentdAR嘉泰姆

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

200dAR嘉泰姆

300dAR嘉泰姆

AdAR嘉泰姆

ISdAR嘉泰姆

Shutdown CurrentdAR嘉泰姆

VEN = 0V, VIN = 4.2VdAR嘉泰姆

0.1dAR嘉泰姆

1dAR嘉泰姆

AdAR嘉泰姆

IPKdAR嘉泰姆

Peak Inductor CurrentdAR嘉泰姆

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

0.75dAR嘉泰姆

0.9dAR嘉泰姆

1dAR嘉泰姆

AdAR嘉泰姆

RPFETdAR嘉泰姆

RDS(ON) of P-Channel FETdAR嘉泰姆

ISW = 100mAdAR嘉泰姆

0.3dAR嘉泰姆

RNFETdAR嘉泰姆

RDS(ON) of N-Channel FETdAR嘉泰姆

ISW = -100mAdAR嘉泰姆

0.39dAR嘉泰姆

EFFIdAR嘉泰姆

EfficiencydAR嘉泰姆

When connected to ext. componentsdAR嘉泰姆
VIN=EN=3.6 V, IOUT=100mAdAR嘉泰姆

93dAR嘉泰姆

%dAR嘉泰姆

VOUTdAR嘉泰姆

VOUT Line RegulationdAR嘉泰姆

VIN=2.5V~5.5VdAR嘉泰姆

0.03dAR嘉泰姆

0.3dAR嘉泰姆

%/VdAR嘉泰姆

VLOADREGdAR嘉泰姆

VOUT Load RegulationdAR嘉泰姆

0.33dAR嘉泰姆

%dAR嘉泰姆

双通道高压同步DC-DC降压ICdAR嘉泰姆

 型号dAR嘉泰姆

 输入耐压dAR嘉泰姆

 输出电压dAR嘉泰姆

 输出电流dAR嘉泰姆

反馈dAR嘉泰姆

电压dAR嘉泰姆

工作频率dAR嘉泰姆

效率dAR嘉泰姆

静态工dAR嘉泰姆

作电流dAR嘉泰姆

待机dAR嘉泰姆

电流 dAR嘉泰姆

 封装dAR嘉泰姆

CXSD61028dAR嘉泰姆

8V-35VdAR嘉泰姆

可调输出/带线损补偿dAR嘉泰姆

扩流4.2A/双通道带CC/CV模式dAR嘉泰姆

1.21VdAR嘉泰姆

100-500K可调dAR嘉泰姆

95%dAR嘉泰姆

14mAdAR嘉泰姆

100uAdAR嘉泰姆

ESOP8dAR嘉泰姆

CXSD61029dAR嘉泰姆

8V-30VdAR嘉泰姆

可调输出/带线损补偿dAR嘉泰姆

4.0A/双通道带CC/CV模式dAR嘉泰姆

1.2VdAR嘉泰姆

100KHzdAR嘉泰姆

96%dAR嘉泰姆

10mAdAR嘉泰姆

ESOP-8dAR嘉泰姆

CXSD61030dAR嘉泰姆

8V-40VdAR嘉泰姆

可调输出/带线损补偿dAR嘉泰姆

扩流4.2A/双通道带CC/CV模式dAR嘉泰姆

1.2VdAR嘉泰姆

100KHzdAR嘉泰姆

95%dAR嘉泰姆

10mAdAR嘉泰姆

SOP-8dAR嘉泰姆

CXSD61031dAR嘉泰姆

8V-40VdAR嘉泰姆

可调输出/带线损补偿dAR嘉泰姆

扩流6.0A/双通道带CC/CV模式dAR嘉泰姆

1.2VdAR嘉泰姆

100KHzdAR嘉泰姆

96%dAR嘉泰姆

10mAdAR嘉泰姆

ESOP-8dAR嘉泰姆

双路低压同步DC-DC降压ICdAR嘉泰姆

 型号dAR嘉泰姆

 输入耐压dAR嘉泰姆

 输出电压dAR嘉泰姆

输出电流dAR嘉泰姆

反馈dAR嘉泰姆

电压dAR嘉泰姆

 工作频率dAR嘉泰姆

效率dAR嘉泰姆

静态工dAR嘉泰姆

作电流dAR嘉泰姆

待机dAR嘉泰姆

电流 dAR嘉泰姆

 封装dAR嘉泰姆

CXSD61032dAR嘉泰姆

3.0V-6.0VdAR嘉泰姆

双路可调dAR嘉泰姆

1.5AdAR嘉泰姆

0.6VdAR嘉泰姆

1.5MHzdAR嘉泰姆

90%dAR嘉泰姆

10uAdAR嘉泰姆

ESOP-8dAR嘉泰姆

CXSD61033dAR嘉泰姆

2.3V-6.0VdAR嘉泰姆

双路可调dAR嘉泰姆

2AdAR嘉泰姆

0.6VdAR嘉泰姆

1.5MHzdAR嘉泰姆

90%dAR嘉泰姆

150uAdAR嘉泰姆

0.1uAdAR嘉泰姆

ESOP-8dAR嘉泰姆

CXSD61034dAR嘉泰姆

2.5V-6.0VdAR嘉泰姆

双路可调dAR嘉泰姆

0.9AdAR嘉泰姆

0.6VdAR嘉泰姆

1.4MHzdAR嘉泰姆

95%dAR嘉泰姆

200uAdAR嘉泰姆

0.1uAdAR嘉泰姆

DFN3*3dAR嘉泰姆