CXSD61007 150 KHz fixed frequency PWM buck (step-down) DC/DC converter,capable of driving a 2A load with highefficiency, low ripple and excellent line and load regulation
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[ 产品资料下载 ]
目录 1.产品概述 2.产品特点 一,产品概述(General Description) The CXSD61007 is a 150 KHz fixed frequency PWM buck (step-down) is built inside. When second current limit function happens, the operation frequency will be reduced from 150KHz to 50KHz. An internal compensation block is built in to minimize external component count. 1.)Wide 4.5V to 40V Input Voltage Range 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 1 VIN Supply Voltage Input Pin. CXSD61007 operates from a 4.5V to 2 OUTPUT Power Switch Output Pin (SW). Output is the switch node that 5~8 GND Ground Pin. Care must be taken in layout. This pin should be 3 FEEDBACK Feedback Pin (FB). Through an external resistor divider 4 ON/OFF Enable Pin. Drive ON/OFF pin low to turn on the device, drive 六.电路原理图 Parameter Symbol Value Unit Input Voltage Vin -0.3 to 45 V Feedback Pin Voltage VFB -0.3 to Vin V ON/OFF Pin Voltage VON/OFF -0.3 to Vin V Output Switch Pin Voltage VOutput -0.3 to Vin V Power Dissipation PD Internally limited mW Thermal Resistance (SOIC8) 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% 1m
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
DC/DC converter,capable of driving a 2A load with highefficiency, 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 enable function, an over current protection function
二.产品特点(Features)
2.)3.3V,5V,12V, and adjustable versions
3.)Output Adjustable from 1.23V to 37V
4.)Maximum Duty Cycle 100%
5.)Minimum Drop Out 1.5V
6.)Fixed 150KHz Switching Frequency
7.)2A Constant Output Current Capability
8.)Internal Optimize Power Transistor
9.)High efficiency
10.)Excellent line and load regulation
11.)TTL shutdown capability
12.)ON/OFF pin with hysteresis function
13.)Built in thermal shutdown function
14.)Built in current limit function
15.)Built in second current limit function
16.)Available in SOIC8 package
三,应用范围 (Applications)
LCD Monitor and LCD TV
Digital Photo Frame
Set-up Box
ADSL Modem
Telecom / Networking Equipment
四.下载产品资料PDF文档
40V DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
supplies power to the output.
placed outside of the Schottky Diode to output capacitor
ground path to prevent switching current spikes from inducing
voltage noise into CXSD61007.
network, Feedback senses the output voltage and regulates it.
The feedback threshold voltage is 1.23V.
it high to turn it off. Floating is default low.
七,功能概述
(Junction to Ambient, No Heatsink, Free Air)
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