初中数学复习 二次函数与线段最值 面积
AB=|x1-x2|=x2-x1 (横坐标相减)右减左 知识导航 第一课 二次函数与线段最值 2 让学习更高效 例1. (原创题)如图,已知二次函数 2 23y x x 的图象交 x 轴于 A、B 两点(
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AB=|x1-x2|=x2-x1 (横坐标相减)右减左 知识导航 第一课 二次函数与线段最值 2 让学习更高效 例1. (原创题)如图,已知二次函数 2 23y x x 的图象交 x 轴于 A、B 两点(
1 / 40 反比例函数的反比例函数的反比例函数的反比例函数的面积问题面积问题面积问题面积问题 一、 三角形中的面积问题 二、 四边形中的面积问题 三、 常考模型 四、 复杂图形与面积 三、 常考模型
doi :10 .3969/ j . issn .1673 -5013 .2012 .04 .017 微 柱 凝胶 法交 叉配 血不 合原 因分 析 宋雪珍1 宋雪梅2 孙凌云1 任小宁1
Features 2V to 24V Input Voltage Up to 28V Output Voltage Integrated 80mΩ Power MOSFET 1.2MHz Fixed Switching Frequency Internal 4A Switch Current Limit Internal Compensation Thermal Shutdown Output Adjustable from 0.6V Available in a 6-pin SOT-23 package
Features Low power consumption Low temperature coefficient Built-in hysteresis characteristic High input voltage (up to 15V) Output voltage accuracy: tolerance ±2% TO92, SOT89 SOT23-3 and SOT23 package
Features Low power consumption Low temperature coefficient Built-in hysteresis characteristic High input voltage (up to 10V) Output voltage accuracy: tolerance ±1% or ±2% TO92, SOT89, SOT23-3 ,SOT23 and SOT23-5package
Features Low power consumption:25uA (Typ.) Low voltage drop:0.2V@100mA(Typ.) Low output noise(27uVRMS) Standby Mode: 0.1uA Low temperature coefficient Output Voltage Range: 0.9V~5V Good line Regulation:0.05%/V High Ripple Rejection: 70dB@1kHz(Typ.) High input voltage (up to 7V) Output voltage accuracy: tolerance ±2% Build-in Enable/Output Current Limit circuit
Features Low power consumption Low voltage drop Low temperature coefficient High input voltage (up to 18V) Output voltage accuracy: tolerance ±2% TO92, SOT89, SOT23-3 and SOT23 packageApplications Battery-powered equipment Communication equipment Audio/Video equipment
Features Low power consumption Low voltage drop Low temperature coefficient High input voltage (up to 18V) Output voltage accuracy: tolerance ±2% TO92, SOT89 ,SOT23-3and SOT23 packageApplications Battery-powered equipment Communication equipment Audio/Video equipment
Features Low voltage drop: 0.17V@100mA High input voltage: 15V Low temperature coefficient Large Output Current: >0.35A Low Quiescent Current: 1.0uA Output voltage accuracy: tolerance ±2% Built-in current limiter SOT89 and SOT23-3 package
Low power consumption Low voltage drop Low temperature coefficient Low Quiescent Current: 1.5uA at 6V Output voltage accuracy: tolerance ±2%Applications Battery-powered equipment Reference voltage sources Cameras,video cameras Portable AV systems Mobile phones Portable games
Features Wide 3.3V to 16V Operating input Range 2A Continuous Output Current No Schottky Diode Required 600KHz Frequency Operation Built-in Over Current Limit Built-in Over Voltage Protection Internal Soft start Output Adjustable from 0.6V Integrated internal compensation Short Protection with Hiccup-Mode Thermal Shutdown Available in SOT23-6 ,Package -40℃ to +85℃ Temperature Range
Features Quiescent Current: 4.2uA@12V PSRR:60dB@100Hz Voltage drop:600mV@100mA ESD HBM:8KV High input voltage (up to 40V) Output voltage accuracy: tolerance ±2% Output current:100mA(Typ.) TO92 and SOT89 package
Features Low power consumption Low voltage drop Low temperature coefficient High input voltage (up to 32V) Output voltage accuracy: tolerance ±2% TO92 and SOT89 packageApplications Battery-powered equipment Communication equipment Audio/Video equipment
Features External parts: Coil, capacitor Output voltage: Settable to between2.1V to 5.5V in 0.1V steps Maximum Oscillationfrequency :300KHz Accuracy of ±2% High efficiency :95% Package:SOT23,SOT23-3,SOT23-5,SOT89and TO92
Features Low voltage drop: 0.17V@100mA High input voltage: 15V Low temperature coefficient Large Output Current: >0.5A Low Quiescent Current: 1.0uA Output voltage accuracy: tolerance ±2% Built-in current limiter SOT89,SOT89-5,SOT23-3 and SOT23-5packagesApplications Battery-powered equipment Hand-Hold Equipment GRS Receivers Wireless LAN
长沙微领地网络科技有限公司 从 VR 店铺的上线看微领地小蜜市场前景 新电商时代的到来,以 VR、AR 为代表的不少新科技被融入进电 商平台的发展之中。个人流量平台微领地小蜜,就结合时下较为流行 的 VR
日发布 2018 年 9 月 1 日实施 CNAS-CL01-A001 检测和校准实验室能力认可准则 在微生物检测领域的应用说明 Guidance on the application of testing
Features Low power consumption Low voltage drop Low temperature coefficient Low Quiescent Current: 5uA at 6V Output voltage accuracy: tolerance ±2%Applications Battery-powered equipment Reference voltage sources Cameras,video cameras Portable AV systems Mobile phones Portable games