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首页 > 产品中心 > 电源管理 > DC降压型转换器 > Buck降压型芯片 >CXSD61044D high-efficiency, high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.5A output currents
CXSD61044D high-efficiency, high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.5A output currents
0

CXSD61044D operate over a wide inpu tvoltage range
from 2.3V to 6.0V and integrate main switch and synchronous switch
with very low RDS(ON) to minimize the conduction loss

CXSD61044D high-efficiency, high frequency synchronous  step-down DC-DC regulator ICs capable of delivering up to 1.5A output  currents
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产品简介

目录dfC嘉泰姆

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


      The CXSD61039  CXSD61044D are high-efficiency, high frequency synchronous dfC嘉泰姆

step-down DC-DC regulator ICs capable of delivering up to 1.5A output dfC嘉泰姆

currents. The CXSD61039 can operate over a wide inpu tvoltage range dfC嘉泰姆

from 2.3V to 6.0V and integrate main switch and synchronous switch dfC嘉泰姆

with very low RDS(ON) to minimize the conduction loss.dfC嘉泰姆

    It is ideal for powering portable equipment that runs from a single celldfC嘉泰姆
Lithium-Ion (Li+) battery. The CXSD61039 output voltage can be regulated 
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as low as 0.6V. The CXSD61039 CXSD61044D can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. This device offersdfC嘉泰姆

 two operation modes,PWM control and PFM Mode switching control,which dfC嘉泰姆

allows a high efficiency over the wider range of the load.dfC嘉泰姆
       The CXSD61039 CXSD61044D  is off ered in a low profile (1mm)5-pin, thin SOT package, and is available in an adjustable version.
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二.产品特点(Features)dfC嘉泰姆


High Efficiency: Up to 96%dfC嘉泰姆
1.0MHz Constant Frequency OperationdfC嘉泰姆
2A Output CurrentdfC嘉泰姆
No Schottky Diode RequireddfC嘉泰姆
2.3V to 6V Input Voltage RangedfC嘉泰姆
Output Voltage as Low as 0.6VdfC嘉泰姆
PFM Mode for High Efficiency in Light LoaddfC嘉泰姆
100% Duty Cycle in Dropout OperationdfC嘉泰姆
Low Quiescent Current: 40μAdfC嘉泰姆
Short Circuit ProtectiondfC嘉泰姆
Thermal Fault ProtectiondfC嘉泰姆
Inrush Current Limit and Soft StartdfC嘉泰姆
Input overvoltage protection(OVP)dfC嘉泰姆
<1μA Shutdown CurrentdfC嘉泰姆
SOT23-5 packagedfC嘉泰姆
三,应用范围 (Applications)
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Cellular and Smart PhonesdfC嘉泰姆
Wireless and DSL ModemsdfC嘉泰姆
PDAsdfC嘉泰姆
Portable InstrumentsdfC嘉泰姆
Digital Still and Video CamerasdfC嘉泰姆
PC CardsdfC嘉泰姆
四.技术规格书下载(产品PDF)
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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!dfC嘉泰姆

 QQ截图20160419174301.jpgdfC嘉泰姆

五,产品封装图 (Package)dfC嘉泰姆


image.pngdfC嘉泰姆

PINdfC嘉泰姆

NAMEdfC嘉泰姆

FUNCTIONdfC嘉泰姆

1dfC嘉泰姆

RUNdfC嘉泰姆

Chip Enable Pin. Drive RUN above 1.5V to turn on the part. DrivedfC嘉泰姆
RUN below 0.3V to turn it off. Do not leave RUN floating.
dfC嘉泰姆

2dfC嘉泰姆

GNDdfC嘉泰姆

Ground PindfC嘉泰姆

3dfC嘉泰姆

SWdfC嘉泰姆

Power Switch Output. It is the switch node connection to Inductor.dfC嘉泰姆
This pin connects to the drains of the internal P-ch and N-ch MOSFET switches.
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4dfC嘉泰姆

VINdfC嘉泰姆

Power Supply Input. Must be closely decoupled to GND with a 10μF or greater ceramic capacitor.dfC嘉泰姆

5dfC嘉泰姆

VOUTdfC嘉泰姆

Output Voltage Feedback Pin. An internal resistive divider divides the output voltage down for comparison to the internal reference voltage.dfC嘉泰姆

六.电路原理图dfC嘉泰姆


image.pngdfC嘉泰姆
七,功能概述
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ParameterdfC嘉泰姆

ConditionsdfC嘉泰姆

MINdfC嘉泰姆

TYPdfC嘉泰姆

MAXdfC嘉泰姆

unitdfC嘉泰姆

Input Voltage RangedfC嘉泰姆

 

2.3dfC嘉泰姆

 

6.0dfC嘉泰姆

VdfC嘉泰姆

UVLO ThresholddfC嘉泰姆

 

1.7dfC嘉泰姆

1.9dfC嘉泰姆

2.1dfC嘉泰姆

VdfC嘉泰姆

Input DC Supply CurrentdfC嘉泰姆
PWM ModedfC嘉泰姆
PFM ModedfC嘉泰姆
Shutdown Mode
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(Note 4)dfC嘉泰姆
Vout = 90%, Iload=0mAdfC嘉泰姆
Vout = 105%, Iload=0mAdfC嘉泰姆
VRUN = 0V, VIN=4.2V
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140dfC嘉泰姆
35dfC嘉泰姆
0.1
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300dfC嘉泰姆
70dfC嘉泰姆
1.0
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μAdfC嘉泰姆
μAdfC嘉泰姆
μAdfC嘉泰姆
μA
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Regulated Feedback VoltagedfC嘉泰姆

TA = 25°CdfC嘉泰姆

0.588dfC嘉泰姆

0.600dfC嘉泰姆

0.612dfC嘉泰姆

VdfC嘉泰姆

TA = 0°C ≤ TA ≤ 85°CdfC嘉泰姆

0.586dfC嘉泰姆

0.600dfC嘉泰姆

0.613dfC嘉泰姆

VdfC嘉泰姆

TA = -40°C ≤ TA ≤ 85°CdfC嘉泰姆

0.585dfC嘉泰姆

0.600dfC嘉泰姆

0.615dfC嘉泰姆

VdfC嘉泰姆

Reference Voltage LinedfC嘉泰姆
Regulation
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Vin=2.3V to 6.0VdfC嘉泰姆

 

0.04dfC嘉泰姆

0.40dfC嘉泰姆

%/VdfC嘉泰姆

Output Voltage LinedfC嘉泰姆
Regulation
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VIN = 2.3V to 6.0VdfC嘉泰姆

 

0.04dfC嘉泰姆

0.4dfC嘉泰姆

%dfC嘉泰姆

Output Voltage LoaddfC嘉泰姆
Regulation
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0.5dfC嘉泰姆

 

%dfC嘉泰姆

Oscillation FrequencydfC嘉泰姆

Vout=100%dfC嘉泰姆
Vout=0V
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1.0dfC嘉泰姆

 

MHzdfC嘉泰姆

 

300dfC嘉泰姆

 

KHzdfC嘉泰姆

On Resistance of PMOSdfC嘉泰姆

ISW=100mAdfC嘉泰姆

 

0.2dfC嘉泰姆

 

dfC嘉泰姆

ON Resistance of NMOSdfC嘉泰姆

ISW=-100mAdfC嘉泰姆

 

0.13dfC嘉泰姆

 

dfC嘉泰姆

Peak Current LimitdfC嘉泰姆

VIN= 3V, Vout=90% 3410AdfC嘉泰姆

 

2.5dfC嘉泰姆

 

AdfC嘉泰姆

VIN= 3V, Vout=90% 3410dfC嘉泰姆

 

2.5dfC嘉泰姆

 

AdfC嘉泰姆

RUN ThresholddfC嘉泰姆

 

0.30dfC嘉泰姆

1.0dfC嘉泰姆

1.50dfC嘉泰姆

VdfC嘉泰姆

RUN Leakage CurrentdfC嘉泰姆

   

±0.01dfC嘉泰姆

±1.0dfC嘉泰姆

μAdfC嘉泰姆

SW Leakage CurrentdfC嘉泰姆

VRUN=0V,VIN=Vsw=5VdfC嘉泰姆

 

±0.01dfC嘉泰姆

±1.0dfC嘉泰姆

μAdfC嘉泰姆

八,相关芯片选择指南                更多同类产品......dfC嘉泰姆


低压同步DC-DC降压ICdfC嘉泰姆

型号dfC嘉泰姆

输入耐压dfC嘉泰姆

输出电压dfC嘉泰姆

输出电流dfC嘉泰姆

反馈电压dfC嘉泰姆

工作频率dfC嘉泰姆

效率dfC嘉泰姆

静态工作电流dfC嘉泰姆

待机电流dfC嘉泰姆

封装dfC嘉泰姆

CXSD61036dfC嘉泰姆

2.0-6.0VdfC嘉泰姆

1.2V/1.8V/3.3V/可调输出dfC嘉泰姆

0.7AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MHzdfC嘉泰姆

96%dfC嘉泰姆

20uAdfC嘉泰姆

 

SOT-25dfC嘉泰姆

CXSD61037dfC嘉泰姆

2.5-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

1AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MHzdfC嘉泰姆

96%dfC嘉泰姆

20uAdfC嘉泰姆

 

SOT-25dfC嘉泰姆

CXSD61038dfC嘉泰姆

2.0-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

1.0AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

20uAdfC嘉泰姆

1uAdfC嘉泰姆

SOT-25dfC嘉泰姆

CXSD61038AdfC嘉泰姆

2.3-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

1.2AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

35uAdfC嘉泰姆

1uAdfC嘉泰姆

SOT-25dfC嘉泰姆

CXSD61038BdfC嘉泰姆

2.3-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

1.5AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

35uAdfC嘉泰姆

1uAdfC嘉泰姆

SOT-25dfC嘉泰姆

CXSD61039dfC嘉泰姆

2.3-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

1.5AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

35uAdfC嘉泰姆

1uAdfC嘉泰姆

SOT-25dfC嘉泰姆

CXSD61040dfC嘉泰姆

2.0-6.5VdfC嘉泰姆

可调输出dfC嘉泰姆

2.0AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

40uAdfC嘉泰姆

1uAdfC嘉泰姆

SOT-26dfC嘉泰姆

CXSD61040BdfC嘉泰姆

2.6-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

2.0AdfC嘉泰姆

0.6VdfC嘉泰姆

3MdfC嘉泰姆

96%dfC嘉泰姆

30uAdfC嘉泰姆

0.1uAdfC嘉泰姆

SOT-25dfC嘉泰姆

CXSD61042SdfC嘉泰姆

2.3-6.5VdfC嘉泰姆

可调输出dfC嘉泰姆

2.0AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

40uAdfC嘉泰姆

40uAdfC嘉泰姆

SOP-8dfC嘉泰姆

CXSD61043SdfC嘉泰姆

2.3-6.5VdfC嘉泰姆

可调输出dfC嘉泰姆

3.0AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

95%dfC嘉泰姆

40uAdfC嘉泰姆

40uAdfC嘉泰姆

ESOP-8dfC嘉泰姆

CXSD61044DdfC嘉泰姆

2.3V-6.5VdfC嘉泰姆

可调输出dfC嘉泰姆

1.3AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

96%dfC嘉泰姆

35uAdfC嘉泰姆

35uAdfC嘉泰姆

DFN2*2-6dfC嘉泰姆

CXSD61040DdfC嘉泰姆

2.3V-6.5VdfC嘉泰姆

可调输出dfC嘉泰姆

2AdfC嘉泰姆

0.6VdfC嘉泰姆

1.5MdfC嘉泰姆

95%dfC嘉泰姆

40uAdfC嘉泰姆

40uAdfC嘉泰姆

DFN3*3-10dfC嘉泰姆

CXSD61043dfC嘉泰姆

2.5-6.0VdfC嘉泰姆

可调输出dfC嘉泰姆

3.0AdfC嘉泰姆

0.6VdfC嘉泰姆

1MHzdfC嘉泰姆

95%dfC嘉泰姆

40uAdfC嘉泰姆

0.1uAdfC嘉泰姆

SOT-25dfC嘉泰姆