CXSD6259 180KHz固定频率脉冲宽度调制降压DC/DC转换器高效频率补偿4A恒定输出电流

首页 > 新闻中心 > 行业新闻

发表时间：2020-04-19浏览次数：158

CXSD6259 180KHz固定频率脉冲宽度调制降压DC/DC转换器高效频率补偿4A恒定输出电流

目录Dly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） Dly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Dly嘉泰姆

Dly嘉泰姆

一,产品概述(General Description) Dly嘉泰姆
Dly嘉泰姆
The CXSD6259 is a 180 KHz fixed frequency PWM buck (step-down)Dly嘉泰姆
DC/DC converter,capable of driving a 4A load with high efficiency, low rippleDly嘉泰姆
and excellent line and load regulation.Requiring a minimum number of external components, the regulator is simple to use and include internaln High efficiencyDly嘉泰姆
frequency compensation and a fixed-frequency oscillator.Dly嘉泰姆
The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%.Dly嘉泰姆
An over current protection function is built inside.When short protection functionDly嘉泰姆
happens, the operation frequency will be reduced from 180KHz to 48KHz. An internal compensation block is built in to minimize external component count.Dly嘉泰姆
二.产品特点(Features)Dly嘉泰姆
Dly嘉泰姆
Wide 8V to 36V Input Voltage RangeDly嘉泰姆
Output Adjustable from 1.25V to 32VDly嘉泰姆
Maximum Duty Cycle 100%Dly嘉泰姆
Minimum Drop Out 0.3VDly嘉泰姆
Fixed 180KHz Switching FrequencyDly嘉泰姆
4A Constant Output Current CapabilityDly嘉泰姆
Internal Optimize Power MOSFETDly嘉泰姆
High efficiencyDly嘉泰姆
Excellent line and load regulationDly嘉泰姆
Built in thermal shutdown functionDly嘉泰姆
Built in current limit functionDly嘉泰姆
Built in output short protection functionDly嘉泰姆
Available in TO-252 packageDly嘉泰姆
三,应用范围 (Applications)Dly嘉泰姆
Dly嘉泰姆
LCD Monitor and LCD TVDly嘉泰姆
Portable instrument power supplyDly嘉泰姆
Telecom / Networking EquipmentDly嘉泰姆
四.技术规格书下载（产品PDF）Dly嘉泰姆
Dly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！Dly嘉泰姆

QQ截图20160419174301.jpg Dly嘉泰姆

五,产品封装图 (Package)Dly嘉泰姆
Dly嘉泰姆
Dly嘉泰姆

Pin NumberDly嘉泰姆	Pin NameDly嘉泰姆	DescriptionDly嘉泰姆
1Dly嘉泰姆	GNDDly嘉泰姆	Ground Pin. Care must be taken in layout. This pin should beDly嘉泰姆 placed outside of the Schottky Diode to output capacitorDly嘉泰姆 ground path to prevent switching current spikes from inducingDly嘉泰姆 voltage noise into CXSD6259.Dly嘉泰姆
2Dly嘉泰姆	FBDly嘉泰姆	Feedback Pin (FB). Through an external resistor dividerDly嘉泰姆 network, FB senses the output voltage and regulates it. TheDly嘉泰姆 feedback threshold voltage is 1.25V.Dly嘉泰姆
3Dly嘉泰姆	SWDly嘉泰姆	Power Switch Output Pin (SW). SW is the switch node thatDly嘉泰姆 supplies power to the output.Dly嘉泰姆
4Dly嘉泰姆	VCDly嘉泰姆	Internal Voltage Regulator Bypass Capacity. In typical systemDly嘉泰姆 application, The VC pin connect a 1uf capacity to VIN.Dly嘉泰姆
5Dly嘉泰姆	VINDly嘉泰姆	Supply Voltage Input Pin. CXSD6259 operates from a 8V to 36VDly嘉泰姆 DC voltage. Bypass Vin to GND with a suitably largeDly嘉泰姆 capacitor to eliminate noise on the input.Dly嘉泰姆

六.电路原理图Dly嘉泰姆
Dly嘉泰姆
Dly嘉泰姆
七,功能概述Dly嘉泰姆
Dly嘉泰姆

ParameterDly嘉泰姆	SymbolDly嘉泰姆	ValueDly嘉泰姆	UnitDly嘉泰姆
Input VoltageDly嘉泰姆	VinDly嘉泰姆	-0.3 to 40Dly嘉泰姆	VDly嘉泰姆
Feedback Pin VoltageDly嘉泰姆	VFBDly嘉泰姆	-0.3 to VinDly嘉泰姆	VDly嘉泰姆
Output Switch Pin VoltageDly嘉泰姆	VOutputDly嘉泰姆	-0.3 to VinDly嘉泰姆	VDly嘉泰姆
Power DissipationDly嘉泰姆	PDDly嘉泰姆	Internally limitedDly嘉泰姆	mWDly嘉泰姆
Thermal Resistance (TO252)Dly嘉泰姆 (Junction to Ambient, No Heatsink, Free Air)Dly嘉泰姆	RJADly嘉泰姆	50Dly嘉泰姆	oC/WDly嘉泰姆
Operating Junction TemperatureDly嘉泰姆	TJDly嘉泰姆	-40 to 125Dly嘉泰姆	oCDly嘉泰姆
Storage TemperatureDly嘉泰姆	TSTGDly嘉泰姆	-65 to 150Dly嘉泰姆	oCDly嘉泰姆
Lead Temperature (Soldering, 10 sec)Dly嘉泰姆	TLEADDly嘉泰姆	260Dly嘉泰姆	oCDly嘉泰姆
ESD (HBM)Dly嘉泰姆		>2000Dly嘉泰姆	VDly嘉泰姆

八,相关芯片选择指南Dly嘉泰姆
Dly嘉泰姆

降压型直流电源变换器芯片(大功率型)Dly嘉泰姆
产品型号Dly嘉泰姆	输入电压Dly嘉泰姆	开关电流Dly嘉泰姆	开关频率Dly嘉泰姆	电压版本Dly嘉泰姆	封装类型Dly嘉泰姆
CXSD6257Dly嘉泰姆	5V ~ 32VDly嘉泰姆	4ADly嘉泰姆	300KHzDly嘉泰姆	Adj (0.8V)Dly嘉泰姆	TO252-5LDly嘉泰姆
CXSD6258Dly嘉泰姆	5V ~ 32VDly嘉泰姆	5ADly嘉泰姆	300KHzDly嘉泰姆	Adj (0.8V)Dly嘉泰姆	TO263-5LDly嘉泰姆
CXSD6259Dly嘉泰姆	8V ~ 36VDly嘉泰姆	4ADly嘉泰姆	180KHzDly嘉泰姆	Adj (1.25V)Dly嘉泰姆	TO252-5LDly嘉泰姆
CXSD6260Dly嘉泰姆	8V ~ 36VDly嘉泰姆	5ADly嘉泰姆	180KHzDly嘉泰姆	Adj (1.25V)Dly嘉泰姆	TO263-5LDly嘉泰姆
CXSD6261Dly嘉泰姆	8V ~ 40VDly嘉泰姆	8ADly嘉泰姆	180KHzDly嘉泰姆	Adj (1.25V)Dly嘉泰姆	TO220-5LDly嘉泰姆

使用手机扫描二维码访问 Dly嘉泰姆

上一篇：CXSD6209A current mode monolithic buck switching regulator. Operating with an input range of 3.6-40V 2A of continuous output current with two integrated N-Channel MOSFETs

下一篇：CXSD6260 5A恒定输出电流宽8V至36V输入电压优化功率MOSFET短路保护pwm控制

发表评论

产品中心

电源管理

LED驱动电路

音频放大IC

电机风扇驱动芯片

MCU存储ADC时钟数据线

功率器件

隔离芯片

电池充电芯片

技术支持

产品方案

质量承诺

联系我们