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 stil

目录2xg嘉泰姆

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</span>                     6.电路原理图</span>                   
7.功能概述                        8.相关产品2xg嘉泰姆

一,产品概述(General Description)         
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      The CXSD61040D is a 1.5MHz constant frequency,current mode 2xg嘉泰姆

step-down converter. It is ideal for portable equipment requiring very 2xg嘉泰姆

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

achieving over 90% efficiency during peak load conditions. The 2xg嘉泰姆

CXSD61040D also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation 2xg嘉泰姆

provides very low output ripple for noise sensitive applications. The 2xg嘉泰姆

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. 2xg嘉泰姆

The high switching frequency minimizes the size of external components2xg嘉泰姆

 while keeping switching losses low. The internal slope compensation2xg嘉泰姆

 setting allows the device to operatewith smaller inductor values to 2xg嘉泰姆

optimize size and provide efficient operation. The device is available in2xg嘉泰姆

 a Pb-free, 3x3mm 10-lead DFN package and is rated over the -40°C 2xg嘉泰姆

to +85°C temperature range.This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high 2xg嘉泰姆

efficiency over the wider range of the load.2xg嘉泰姆

二</span>.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</span>,应用范围 (Applications)
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
PC Cards
四</span>,产品封装图 (Package)

五</span>,电路原理图</span>

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</span>.产品PDF文档2xg嘉泰姆

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