CXSD61008 380KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum
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目录 1.产品概述 2.产品特点 一,产品概述(General Description) The CXSD61008 is a 380KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator.The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enablefunction, an over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 380KHz to 80KHz. An internal compensation block is built in to minimize external component count. Wide 3.6V to 18V Input Voltage Range LCD Monitor and LCD TV 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！ Pin Number Pin Name Description 3 NC No Connected. 4 VIN Supply Voltage Input Pin.CXSD61008 operates from a 3.6V to 18V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. 5,6 SW Power Switch Output Pin (SW). Output is the switch node that supplies power to the output. 7,8 GND Ground Pin. Care must be taken in layout. This pin should be placed outside of the Schottky Diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into CXSD61008. 1 FB Feedback Pin (FB). Through an external resistor divider network, Feedback senses the output voltage and regulates it.The feedback threshold voltage is 0.8V. 2 EN Enable Pin. Drive EN pin low to turn off the device, drive it high to turn it on. Floating is default high. 六.电路原理图 Parameter Symbol Value Unit Input Voltage Vin -0.3 to 20 V Feedback Pin Voltage VFB -0.3 to Vin V EN Pin Voltage VEN -0.3 to Vin V Output Switch Pin Voltage VOutput -0.3 to Vin V Power Dissipation PD Internally limited mW Thermal Resistance (SOP8)(Junction to Ambient, No Heatsink, Free Air) RJA 100 oC/W Operating Junction Temperature TJ -40 to 125 oC Storage Temperature TSTG -65 to 150 oC Lead Temperature (Soldering, 10 sec) TLEAD 260 oC ESD (HBM) 2000 V 八,相关产品 更多同类产品...... DC-DC降压IC 型号 输入耐压 输出电压 输出电流 反馈电压 工作频率 静态工作电流 42V 可调输出/带CC/cv模式 恒流模式保护 3.5A 0.8V 125K 94% 3mA 42V 可调输出/带CC/cv模式 恒流模式保护 3A 0.8V 125K 94% 3mA 42V 可调输出/带CC/cv模式 恒流模式保护 2.5A 0.8V 125K 94% 3mA 40V 可调输出/带CC/cv模式 3A 0.8V 225K 92% 2.84mA 50V 5V固定输出 3.2A 150K 87% 4.7mA 50V 5V固定输出 2.4A 150K 89% 4.7mA 50V 5V固定输出 2.1A 150K 90% 4.7mA 50V 5V固定输出 1.8A 150K 90% 4.7mA 40V 可调输出/带CC/CV模式带线损补偿 3A 0.8V 125K 94% 4mA 40V 5V固定输出 3.5A 150K 93% 2mA 45V 可调输出/ 2A 1.23V 150K 93% 2mA 40V 可调输出/带CC/CV模式 2A 1.18V 110K 93% 10mA 42V 可调输出 3A 0.8V 50-500K 91% 3mA 40V 可调输出/带CC/cv模式 3A 1.25V 180K 89% 2.1mA 40V 可调输出/带CC/cv模式 3.5A 1.25V 180K 87% 2.1mA 45V 可调输出/带CC模式 3A 1.25V 150K 89% 2.0mA 45V 可调输出/带CC模式 2A 1.235V 150K 83% 2.0mA 4.75V-40V 可调输出 0.8A 0.8V 550K 90% 10uA 4.0-42V 可调输出 1.5A 0.8V 650K 91% 600uA 4.5-25V 可调输出 1.8A 0.8V 1.4M 92% 1.8mA 20V 可调输出 3.5A 1.2V 400K 89% 700uA 28V 可调输出 3A 1.22V 380K 89% 3mA 20V 可调输出 3A 0.8V 380K 88% 3mA 20V 可调输出 2A 0.8V 380K 89% 2mA 45V 5.0V/可调输出/3.3/12V 2A 1.23V 150K 82% 2mA 45V 5.0V/可调输出 3A 1.23V 380K 73% 2mA 27V 可调输出 2A 1.22V 420K 95% 1mA
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
Output Adjustable from 0.8V to 16V
Maximum Duty Cycle 100%
Minimum Drop Out 0.6V
Fixed 380KHz Switching Frequency
2A Constant Output Current Capability
Internal Optimize Power MOSFET
High efficiency
Excellent line and load regulation
TTL shutdown capability
EN pin with hysteresis function
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
Available in SOP8 package
三,应用范围 (Applications)
Digital Photo Frame
Set-up Box
ADSL Modem
Telecom / Networking Equipment
四.下载产品资料PDF文档
七,功能概述
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