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

目录xHC嘉泰姆

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

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

Up to 95% EfficiencyxHC嘉泰姆
Current mode operation for excellent line andxHC嘉泰姆
load transient responsexHC嘉泰姆
Low quiescent current: 460 AxHC嘉泰姆
Low Switch on Resistance RDS(ON), InternalxHC嘉泰姆
Switch: 0.35xHC嘉泰姆
Output voltage 0.6V 5.5VxHC嘉泰姆
Automatic PWM/PFM mode switchingxHC嘉泰姆
No Schottky diode requiredxHC嘉泰姆
1.4MHz fixed frequency switchingxHC嘉泰姆
Short-Circuit protectionxHC嘉泰姆
Shutdown quiescent current: < 1 AxHC嘉泰姆
Low profile DFN3*3-10L package (lead-freexHC嘉泰姆
packaging is now available)xHC嘉泰姆
三,应用范围 (Applications)xHC嘉泰姆

 Digital cameras and MP3xHC嘉泰姆
Palmtop computers / PDAsxHC嘉泰姆
Cellular phonesxHC嘉泰姆
Wireless handsets and DSL modemsxHC嘉泰姆
PC cardsxHC嘉泰姆
Portable media playersxHC嘉泰姆
四,产品封装图 (Package)xHC嘉泰姆

xHC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)xHC嘉泰姆

SYMBOLxHC嘉泰姆

PARAMETERxHC嘉泰姆

CONDITIONSxHC嘉泰姆

MINxHC嘉泰姆

TYPxHC嘉泰姆

MAXxHC嘉泰姆

UNITSxHC嘉泰姆

VOUTxHC嘉泰姆

Output VoltagexHC嘉泰姆

I OUT = 100mA, R2(4)/R1(3)=2xHC嘉泰姆

1.75xHC嘉泰姆

1.80xHC嘉泰姆

1.85xHC嘉泰姆

VxHC嘉泰姆

VINxHC嘉泰姆

Input Voltage RangexHC嘉泰姆

2.5xHC嘉泰姆

5.5xHC嘉泰姆

VxHC嘉泰姆

VFBxHC嘉泰姆

Regulated VoltagexHC嘉泰姆

TA = 25xHC嘉泰姆

0.5880xHC嘉泰姆

0.6xHC嘉泰姆

0.6120xHC嘉泰姆

VxHC嘉泰姆

IFBxHC嘉泰姆

Feedback CurrentxHC嘉泰姆

±30xHC嘉泰姆

nAxHC嘉泰姆

VFBxHC嘉泰姆

VREFxHC嘉泰姆

VIN=2.5V~5.5VxHC嘉泰姆

0.03xHC嘉泰姆

0.4xHC嘉泰姆

%/VxHC嘉泰姆

FOSCxHC嘉泰姆

Oscillator FrequencyxHC嘉泰姆

VFB = 0.6V or VOUT = 100%xHC嘉泰姆

1.1xHC嘉泰姆

1.4xHC嘉泰姆

1.7xHC嘉泰姆

MHzxHC嘉泰姆

IQxHC嘉泰姆

Quiescent CurrentxHC嘉泰姆

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

200xHC嘉泰姆

300xHC嘉泰姆

AxHC嘉泰姆

ISxHC嘉泰姆

Shutdown CurrentxHC嘉泰姆

VEN = 0V, VIN = 4.2VxHC嘉泰姆

0.1xHC嘉泰姆

1xHC嘉泰姆

AxHC嘉泰姆

IPKxHC嘉泰姆

Peak Inductor CurrentxHC嘉泰姆

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

0.75xHC嘉泰姆

0.9xHC嘉泰姆

1xHC嘉泰姆

AxHC嘉泰姆

RPFETxHC嘉泰姆

RDS(ON) of P-Channel FETxHC嘉泰姆

ISW = 100mAxHC嘉泰姆

0.3xHC嘉泰姆

RNFETxHC嘉泰姆

RDS(ON) of N-Channel FETxHC嘉泰姆

ISW = -100mAxHC嘉泰姆

0.39xHC嘉泰姆

EFFIxHC嘉泰姆

EfficiencyxHC嘉泰姆

When connected to ext. componentsxHC嘉泰姆
VIN=EN=3.6 V, IOUT=100mAxHC嘉泰姆

93xHC嘉泰姆

%xHC嘉泰姆

VOUTxHC嘉泰姆

VOUT Line RegulationxHC嘉泰姆

VIN=2.5V~5.5VxHC嘉泰姆

0.03xHC嘉泰姆

0.3xHC嘉泰姆

%/VxHC嘉泰姆

VLOADREGxHC嘉泰姆

VOUT Load RegulationxHC嘉泰姆

0.33xHC嘉泰姆

%xHC嘉泰姆

双通道高压同步DC-DC降压ICxHC嘉泰姆

 型号xHC嘉泰姆

 输入耐压xHC嘉泰姆

 输出电压xHC嘉泰姆

 输出电流xHC嘉泰姆

反馈xHC嘉泰姆

电压xHC嘉泰姆

工作频率xHC嘉泰姆

效率xHC嘉泰姆

静态工xHC嘉泰姆

作电流xHC嘉泰姆

待机xHC嘉泰姆

电流 xHC嘉泰姆

 封装xHC嘉泰姆

CXSD61028xHC嘉泰姆

8V-35VxHC嘉泰姆

可调输出/带线损补偿xHC嘉泰姆

扩流4.2A/双通道带CC/CV模式xHC嘉泰姆

1.21VxHC嘉泰姆

100-500K可调xHC嘉泰姆

95%xHC嘉泰姆

14mAxHC嘉泰姆

100uAxHC嘉泰姆

ESOP8xHC嘉泰姆

CXSD61029xHC嘉泰姆

8V-30VxHC嘉泰姆

可调输出/带线损补偿xHC嘉泰姆

4.0A/双通道带CC/CV模式xHC嘉泰姆

1.2VxHC嘉泰姆

100KHzxHC嘉泰姆

96%xHC嘉泰姆

10mAxHC嘉泰姆

ESOP-8xHC嘉泰姆

CXSD61030xHC嘉泰姆

8V-40VxHC嘉泰姆

可调输出/带线损补偿xHC嘉泰姆

扩流4.2A/双通道带CC/CV模式xHC嘉泰姆

1.2VxHC嘉泰姆

100KHzxHC嘉泰姆

95%xHC嘉泰姆

10mAxHC嘉泰姆

SOP-8xHC嘉泰姆

CXSD61031xHC嘉泰姆

8V-40VxHC嘉泰姆

可调输出/带线损补偿xHC嘉泰姆

扩流6.0A/双通道带CC/CV模式xHC嘉泰姆

1.2VxHC嘉泰姆

100KHzxHC嘉泰姆

96%xHC嘉泰姆

10mAxHC嘉泰姆

ESOP-8xHC嘉泰姆

双路低压同步DC-DC降压ICxHC嘉泰姆

 型号xHC嘉泰姆

 输入耐压xHC嘉泰姆

 输出电压xHC嘉泰姆

输出电流xHC嘉泰姆

反馈xHC嘉泰姆

电压xHC嘉泰姆

 工作频率xHC嘉泰姆

效率xHC嘉泰姆

静态工xHC嘉泰姆

作电流xHC嘉泰姆

待机xHC嘉泰姆

电流 xHC嘉泰姆

 封装xHC嘉泰姆

CXSD61032xHC嘉泰姆

3.0V-6.0VxHC嘉泰姆

双路可调xHC嘉泰姆

1.5AxHC嘉泰姆

0.6VxHC嘉泰姆

1.5MHzxHC嘉泰姆

90%xHC嘉泰姆

10uAxHC嘉泰姆

ESOP-8xHC嘉泰姆

CXSD61033xHC嘉泰姆

2.3V-6.0VxHC嘉泰姆

双路可调xHC嘉泰姆

2AxHC嘉泰姆

0.6VxHC嘉泰姆

1.5MHzxHC嘉泰姆

90%xHC嘉泰姆

150uAxHC嘉泰姆

0.1uAxHC嘉泰姆

ESOP-8xHC嘉泰姆

CXSD61034xHC嘉泰姆

2.5V-6.0VxHC嘉泰姆

双路可调xHC嘉泰姆

0.9AxHC嘉泰姆

0.6VxHC嘉泰姆

1.4MHzxHC嘉泰姆

95%xHC嘉泰姆

200uAxHC嘉泰姆

0.1uAxHC嘉泰姆

DFN3*3xHC嘉泰姆