CXSD6261 固定180kHz开关频率8V至40V输入电压低纹波驱动8A负载

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发表时间：2020-04-19浏览次数：189

CXSD6261 固定180kHz开关频率8V至40V输入电压低纹波驱动8A负载

目录NCP嘉泰姆

1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（产品PDF文档） NCP嘉泰姆
5.产品封装图 6.电路原理图 7.功能概述 8.相关产品NCP嘉泰姆

NCP嘉泰姆

一,产品概述(General Description) NCP嘉泰姆
NCP嘉泰姆
The CXSD6261 is a 180 KHz fixed frequency PWM buck (step-down)NCP嘉泰姆
DC/DC converter,capable of driving a 8A load with high efficiency, low rippleNCP嘉泰姆
and excellent line and load regulation.Requiring a minimum number NCP嘉泰姆

of external components, the regulator is simple to use and include internal NCP嘉泰姆

frequency compensation and a fixed-frequency oscillator.NCP嘉泰姆
The PWM control circuit is able to adjust the duty ratio linearly fromNCP嘉泰姆

0 to 100%.An over current protection function is built inside.When NCP嘉泰姆

short protection function happens, the operation frequency NCP嘉泰姆

will be reduced from 180KHz to 48KHz. An internal compensationNCP嘉泰姆

block is built in to minimize external component count.NCP嘉泰姆
二.产品特点(Features)NCP嘉泰姆
NCP嘉泰姆
Wide 8V to 40V Input Voltage RangeNCP嘉泰姆
Output Adjustable from 1.25V to 36VNCP嘉泰姆
Maximum Duty Cycle 100%NCP嘉泰姆
Minimum Drop Out 0.3VNCP嘉泰姆
Fixed 180KHz Switching FrequencyNCP嘉泰姆
8A Constant Output Current CapabilityNCP嘉泰姆
Internal Optimize Power MOSFETNCP嘉泰姆
High efficiency up to 96%NCP嘉泰姆
Excellent line and load regulationNCP嘉泰姆
Built in thermal shutdown functionNCP嘉泰姆
Built in current limit functionNCP嘉泰姆
Built in output short protection functionNCP嘉泰姆
Built in input over voltage protectionNCP嘉泰姆
Available in TO220-5L packageNCP嘉泰姆
三,应用范围 (Applications)NCP嘉泰姆
NCP嘉泰姆
LCD Monitor and LCD TVNCP嘉泰姆
Portable instrument power supplyNCP嘉泰姆
Telecom / Networking EquipmentNCP嘉泰姆
四.技术规格书下载（产品PDF）NCP嘉泰姆
NCP嘉泰姆

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！NCP嘉泰姆

QQ截图20160419174301.jpg NCP嘉泰姆

五,产品封装图 (Package)NCP嘉泰姆
NCP嘉泰姆
NCP嘉泰姆

Pin NumberNCP嘉泰姆	Pin NameNCP嘉泰姆	DescriptionNCP嘉泰姆
1NCP嘉泰姆	GNDNCP嘉泰姆	Ground Pin. Care must be taken in layout. This pin should beNCP嘉泰姆 placed outside of the Schottky Diode to output capacitorNCP嘉泰姆 ground path to prevent switching current spikes from inducingNCP嘉泰姆 voltage noise into CXSD6261.NCP嘉泰姆
2NCP嘉泰姆	FBNCP嘉泰姆	Feedback Pin (FB). Through an external resistor dividerNCP嘉泰姆 network, FB senses the output voltage and regulates it. TheNCP嘉泰姆 feedback threshold voltage is 1.25V.NCP嘉泰姆
3NCP嘉泰姆	SWNCP嘉泰姆	Power Switch Output Pin (SW). SW is the switch node thatNCP嘉泰姆 supplies power to the output.NCP嘉泰姆
4NCP嘉泰姆	VCNCP嘉泰姆	Internal Voltage Regulator Bypass Capacity. In typical systemNCP嘉泰姆 application, The VC pin connect a 1uf capacity to VIN.NCP嘉泰姆
5NCP嘉泰姆	VINNCP嘉泰姆	Supply Voltage Input Pin. CXSD6261 operates from a 8V to 40VNCP嘉泰姆 DC voltage. Bypass Vin to GND with a suitably largeNCP嘉泰姆 capacitor to eliminate noise on the input.NCP嘉泰姆

六.电路原理图NCP嘉泰姆
NCP嘉泰姆
NCP嘉泰姆

七,功能概述NCP嘉泰姆
NCP嘉泰姆

ParameterNCP嘉泰姆	SymbolNCP嘉泰姆	ValueNCP嘉泰姆	UnitNCP嘉泰姆
Input VoltageNCP嘉泰姆	VinNCP嘉泰姆	-0.3 to 45NCP嘉泰姆	VNCP嘉泰姆
Feedback Pin VoltageNCP嘉泰姆	VFBNCP嘉泰姆	-0.3 to VinNCP嘉泰姆	VNCP嘉泰姆
Output Switch Pin VoltageNCP嘉泰姆	VOutputNCP嘉泰姆	-0.3 to VinNCP嘉泰姆	VNCP嘉泰姆
Power DissipationNCP嘉泰姆	PDNCP嘉泰姆	Internally limitedNCP嘉泰姆	mWNCP嘉泰姆
Thermal Resistance (TO220-5L)NCP嘉泰姆 (Junction to Ambient, No Heatsink, Free Air)NCP嘉泰姆	RJANCP嘉泰姆	30NCP嘉泰姆	oC/WNCP嘉泰姆
Operating Junction TemperatureNCP嘉泰姆	TJNCP嘉泰姆	-40 to 125NCP嘉泰姆	oCNCP嘉泰姆
Storage TemperatureNCP嘉泰姆	TSTGNCP嘉泰姆	-65 to 150NCP嘉泰姆	oCNCP嘉泰姆
Lead Temperature (Soldering, 10 sec)NCP嘉泰姆	TLEADNCP嘉泰姆	260NCP嘉泰姆	oCNCP嘉泰姆
ESD (HBM)NCP嘉泰姆		>2000NCP嘉泰姆	VNCP嘉泰姆

八,相关芯片选择指南NCP嘉泰姆
NCP嘉泰姆

降压型直流电源变换器芯片(大功率型)NCP嘉泰姆
产品型号NCP嘉泰姆	输入电压NCP嘉泰姆	开关电流NCP嘉泰姆	开关频率NCP嘉泰姆	电压版本NCP嘉泰姆	封装类型NCP嘉泰姆
CXSD6257NCP嘉泰姆	5V ~ 32VNCP嘉泰姆	4ANCP嘉泰姆	300KHzNCP嘉泰姆	Adj (0.8V)NCP嘉泰姆	TO252-5LNCP嘉泰姆
CXSD6258NCP嘉泰姆	5V ~ 32VNCP嘉泰姆	5ANCP嘉泰姆	300KHzNCP嘉泰姆	Adj (0.8V)NCP嘉泰姆	TO263-5LNCP嘉泰姆
CXSD6259NCP嘉泰姆	8V ~ 36VNCP嘉泰姆	4ANCP嘉泰姆	180KHzNCP嘉泰姆	Adj (1.25V)NCP嘉泰姆	TO252-5LNCP嘉泰姆
CXSD6260NCP嘉泰姆	8V ~ 36VNCP嘉泰姆	5ANCP嘉泰姆	180KHzNCP嘉泰姆	Adj (1.25V)NCP嘉泰姆	TO263-5LNCP嘉泰姆
CXSD6261NCP嘉泰姆	8V ~ 40VNCP嘉泰姆	8ANCP嘉泰姆	180KHzNCP嘉泰姆	Adj (1.25V)NCP嘉泰姆	TO220-5LNCP嘉泰姆

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