CXSD61040D 2A Output Current 2.3V to 6V Input Voltage Range PFM Mode for High Efficiency in Light Load

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 CXSD61040D is a 1.5MHz constant frequency,current mode 

step-down converter. It is ideal for portable equipment requiring very 

high current up to 2A from single-cell Lithium-ion batteries while still 

achieving over 90% efficiency during peak load conditions. The 

CXSD61040D also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation 

provides very low output ripple for noise sensitive applications. The 

CXSD61040D can supply up to 2A output load current from a 2.3V to 6V input voltage and the output voltage can be regulated as low as 0.6V. 

The high switching frequency minimizes the size of external components

 while keeping switching losses low. The internal slope compensation

 setting allows the device to operatewith smaller inductor values to 

optimize size and provide efficient operation. The device is available in

 a Pb-free, 3x3mm 10-lead DFN package and is rated over the -40°C 

to +85°C temperature range.This device offers two operation modes,
PWM control and PFM Mode switching control, which allows a high 

efficiency over the wider range of the load.

二.产品特点(Features)

High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
2A Output Current
No Schottky Diode Required
2.3V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
PFM Mode for High Efficiency in Light Load
100% Duty Cycle in Dropout Operation
Low Quiescent Current: 40μA
Short Circuit Protection
Thermal Fault Protection
Inrush Current Limit and Soft Start
<1μA Shutdown Current
DFN3X3-10 package
三,应用范围 (Applications)
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
PC Cards
四,产品封装图 (Package)

五,电路原理图

Pin NamePin NumberDescriptionEN1Chip Enable Pin. Drive EN above 1.5V to turn on the part. Drive ENbelow 0.3V to turn it off. Do not leave EN floating.VDD2Analog supply input pin.PVDD3Power Supply Input. Must be closely decoupled to GND with a 10μF orgreater ceramic capacitor.GND4,6Analog ground pin.FB5Output Voltage Feedback Pin. An internal resistive divider divides theoutput voltage down for comparison to the internal reference voltage.SW7,8Power Switch Output. It is the switch node connection to Inductor. Thispin connects to the drains of the internal P-ch and N-ch MOSFETswitches.PGND9,10Power Ground Pin.EP11Power Ground exposed pad, Must be connected to bare copper groundplane.
六.产品PDF文档

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封装

CXSD61036

2.0-6.0V

1.2V/1.8V/3.3V/可调输出

0.7A

0.6V

1.5MHz

96%

20uA

SOT-25

CXSD61037

2.5-6.0V

可调输出

1A

0.6V

1.5MHz

96%

20uA

SOT-25

CXSD61038

2.0-6.0V

可调输出

1.0A

0.6V

1.5M

96%

20uA

1uA

SOT-25

CXSD61038A

2.3-6.0V

可调输出

1.2A

0.6V

1.5M

96%

35uA

1uA

SOT-25

CXSD61038B

2.3-6.0V

可调输出

1.5A

0.6V

1.5M

96%

35uA

1uA

SOT-25

CXSD61039

2.3-6.0V

可调输出

1.5A

0.6V

1.5M

96%

35uA

1uA

SOT-25

CXSD61040

2.0-6.5V

可调输出

2.0A

0.6V

1.5M

96%

40uA

1uA

SOT-26

CXSD61040B

2.6-6.0V

可调输出

2.0A

0.6V

3M

96%

30uA

0.1uA

SOT-25

CXSD61042S

2.3-6.5V

可调输出

2.0A

0.6V

1.5M

96%

40uA

40uA

SOP-8

CXSD61043S

2.3-6.5V

可调输出

3.0A

0.6V

1.5M

95%

40uA

40uA

ESOP-8

CXSD61044D

2.3V-6.5V

可调输出

1.3A

0.6V

1.5M

96%

35uA

35uA

DFN2*2-6

CXSD61040D

2.3V-6.5V

可调输出

2A

0.6V

1.5M

95%

40uA

40uA

DFN3*3-10

CXSD61043

2.5-6.0V

可调输出

3.0A

0.6V

1MHz

95%

40uA

0.1uA

SOT-25