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：99

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PSS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） PSS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PSS嘉泰姆

PSS嘉泰姆

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

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

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

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

short protection function happens, the operation frequency PSS嘉泰姆

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

block is built in to minimize external component count.PSS嘉泰姆
二.产品特点(Features)PSS嘉泰姆
PSS嘉泰姆
Wide 8V to 40V Input Voltage RangePSS嘉泰姆
Output Adjustable from 1.25V to 36VPSS嘉泰姆
Maximum Duty Cycle 100%PSS嘉泰姆
Minimum Drop Out 0.3VPSS嘉泰姆
Fixed 180KHz Switching FrequencyPSS嘉泰姆
8A Constant Output Current CapabilityPSS嘉泰姆
Internal Optimize Power MOSFETPSS嘉泰姆
High efficiency up to 96%PSS嘉泰姆
Excellent line and load regulationPSS嘉泰姆
Built in thermal shutdown functionPSS嘉泰姆
Built in current limit functionPSS嘉泰姆
Built in output short protection functionPSS嘉泰姆
Built in input over voltage protectionPSS嘉泰姆
Available in TO220-5L packagePSS嘉泰姆
三,应用范围 (Applications)PSS嘉泰姆
PSS嘉泰姆
LCD Monitor and LCD TVPSS嘉泰姆
Portable instrument power supplyPSS嘉泰姆
Telecom / Networking EquipmentPSS嘉泰姆
四.技术规格书下载（产品PDF）PSS嘉泰姆
PSS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！PSS嘉泰姆

QQ截图20160419174301.jpg PSS嘉泰姆

五,产品封装图 (Package)PSS嘉泰姆
PSS嘉泰姆
PSS嘉泰姆

Pin NumberPSS嘉泰姆	Pin NamePSS嘉泰姆	DescriptionPSS嘉泰姆
1PSS嘉泰姆	GNDPSS嘉泰姆	Ground Pin. Care must be taken in layout. This pin should bePSS嘉泰姆 placed outside of the Schottky Diode to output capacitorPSS嘉泰姆 ground path to prevent switching current spikes from inducingPSS嘉泰姆 voltage noise into CXSD6261.PSS嘉泰姆
2PSS嘉泰姆	FBPSS嘉泰姆	Feedback Pin (FB). Through an external resistor dividerPSS嘉泰姆 network, FB senses the output voltage and regulates it. ThePSS嘉泰姆 feedback threshold voltage is 1.25V.PSS嘉泰姆
3PSS嘉泰姆	SWPSS嘉泰姆	Power Switch Output Pin (SW). SW is the switch node thatPSS嘉泰姆 supplies power to the output.PSS嘉泰姆
4PSS嘉泰姆	VCPSS嘉泰姆	Internal Voltage Regulator Bypass Capacity. In typical systemPSS嘉泰姆 application, The VC pin connect a 1uf capacity to VIN.PSS嘉泰姆
5PSS嘉泰姆	VINPSS嘉泰姆	Supply Voltage Input Pin. CXSD6261 operates from a 8V to 40VPSS嘉泰姆 DC voltage. Bypass Vin to GND with a suitably largePSS嘉泰姆 capacitor to eliminate noise on the input.PSS嘉泰姆

六.电路原理图PSS嘉泰姆
PSS嘉泰姆
PSS嘉泰姆

七,功能概述PSS嘉泰姆
PSS嘉泰姆

ParameterPSS嘉泰姆	SymbolPSS嘉泰姆	ValuePSS嘉泰姆	UnitPSS嘉泰姆
Input VoltagePSS嘉泰姆	VinPSS嘉泰姆	-0.3 to 45PSS嘉泰姆	VPSS嘉泰姆
Feedback Pin VoltagePSS嘉泰姆	VFBPSS嘉泰姆	-0.3 to VinPSS嘉泰姆	VPSS嘉泰姆
Output Switch Pin VoltagePSS嘉泰姆	VOutputPSS嘉泰姆	-0.3 to VinPSS嘉泰姆	VPSS嘉泰姆
Power DissipationPSS嘉泰姆	PDPSS嘉泰姆	Internally limitedPSS嘉泰姆	mWPSS嘉泰姆
Thermal Resistance (TO220-5L)PSS嘉泰姆 (Junction to Ambient, No Heatsink, Free Air)PSS嘉泰姆	RJAPSS嘉泰姆	30PSS嘉泰姆	oC/WPSS嘉泰姆
Operating Junction TemperaturePSS嘉泰姆	TJPSS嘉泰姆	-40 to 125PSS嘉泰姆	oCPSS嘉泰姆
Storage TemperaturePSS嘉泰姆	TSTGPSS嘉泰姆	-65 to 150PSS嘉泰姆	oCPSS嘉泰姆
Lead Temperature (Soldering, 10 sec)PSS嘉泰姆	TLEADPSS嘉泰姆	260PSS嘉泰姆	oCPSS嘉泰姆
ESD (HBM)PSS嘉泰姆		>2000PSS嘉泰姆	VPSS嘉泰姆

八,相关芯片选择指南PSS嘉泰姆
PSS嘉泰姆

降压型直流电源变换器芯片(大功率型)PSS嘉泰姆
产品型号PSS嘉泰姆	输入电压PSS嘉泰姆	开关电流PSS嘉泰姆	开关频率PSS嘉泰姆	电压版本PSS嘉泰姆	封装类型PSS嘉泰姆
CXSD6257PSS嘉泰姆	5V ~ 32VPSS嘉泰姆	4APSS嘉泰姆	300KHzPSS嘉泰姆	Adj (0.8V)PSS嘉泰姆	TO252-5LPSS嘉泰姆
CXSD6258PSS嘉泰姆	5V ~ 32VPSS嘉泰姆	5APSS嘉泰姆	300KHzPSS嘉泰姆	Adj (0.8V)PSS嘉泰姆	TO263-5LPSS嘉泰姆
CXSD6259PSS嘉泰姆	8V ~ 36VPSS嘉泰姆	4APSS嘉泰姆	180KHzPSS嘉泰姆	Adj (1.25V)PSS嘉泰姆	TO252-5LPSS嘉泰姆
CXSD6260PSS嘉泰姆	8V ~ 36VPSS嘉泰姆	5APSS嘉泰姆	180KHzPSS嘉泰姆	Adj (1.25V)PSS嘉泰姆	TO263-5LPSS嘉泰姆
CXSD6261PSS嘉泰姆	8V ~ 40VPSS嘉泰姆	8APSS嘉泰姆	180KHzPSS嘉泰姆	Adj (1.25V)PSS嘉泰姆	TO220-5LPSS嘉泰姆

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