400mA同步整流DC/DC转换器
XC9245系列产品是能使用陶瓷电容,内置0.65ΩP沟道驱动晶体管及0.45ΩN沟道开关晶体管的降压同步整流DC/DC转换器。只使用线圈和电容作为外置零部件,能稳定地提供最大400mA的电流。
XC9245系列产品内部设定了输出电压,能在0.8V~4.0V的范围内(±2.0%)以0.05V的间隔选择输出电压。开关频率高达1.2MHz,能减小外置零部件的尺寸。采用USPN-6封装。USPN-6封装最适用于对高度及空间有限制的应用。
由于在待机时整个电路停止工作,能把消耗电流抑制在1.0μA以下。在待机时,由CL高速放电功能使VOUT-VSS之间的内部开关导通,通过内部电阻使CL的电荷放电。这个功能可以在待机时防止VOUT后续电路的错误动作。
由内部把软启动时间设定为0.25ms(TYP.),能使输出电压高速地上升。
为了保护IC不受热损坏,XC9245系列产品备有积分锁定方式的限定电流功能。内置了UVLO (输入欠压锁闭Under Voltage Lock Out) 功能,在输入电压低于2.25V(最大)时,强制停止内部驱动晶体管工作。
特点
内置驱动器 | 0.65ΩP-ch驱动晶体管.,0.45ΩN-ch同步整流开关晶体管. |
输入电压范围 | 2.3V~6.0V |
输出电压范围 | 0.8V~4.0V(0.05V间隔) |
高转换效率 | 90%(TYP.) |
输出电流 | 400mA |
工作频率 | 1.2MHz(±15%) |
最大占空比 | 100% |
功能 | 限定电流(定电流+积分闩锁方式),CL高速自动放电,带软启动 |
输出电容 | 陶瓷电容 |
控制方式 | PWM/PFM自动切换控制 |
工作温度范围 | -40℃~+85℃ |
适应环保要求 | 与EU RoHS规格对应、无铅 |
典型电路框图
技术文件
封装
封装名称 | 引脚数 | 个/Reel | 外形尺寸(mm) |
---|---|---|---|
USPN-6 | 6 | 5,000 | 1.3 x 1.3 x 0.4 |
XC9245 系列型号列表
型号 | 样品 | Type | Output Voltage | Oscillation Frequency | Packages | EDA | 在线商店 |
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XC9245A08C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 0.8V | 1.2MHz | USPN-6 | |||
XC9245A09C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 0.9V | 1.2MHz | USPN-6 | |||
XC9245A0LC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 0.85V | 1.2MHz | USPN-6 | |||
XC9245A0MC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 0.95V | 1.2MHz | USPN-6 | |||
XC9245A10C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.0V | 1.2MHz | USPN-6 | |||
XC9245A11C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.1V | 1.2MHz | USPN-6 | |||
XC9245A12C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.2V | 1.2MHz | USPN-6 | |||
XC9245A13C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.3V | 1.2MHz | USPN-6 | |||
XC9245A14C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.4V | 1.2MHz | USPN-6 | |||
XC9245A15C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.5V | 1.2MHz | USPN-6 | |||
XC9245A16C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.6V | 1.2MHz | USPN-6 | |||
XC9245A17C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.7V | 1.2MHz | USPN-6 | |||
XC9245A18C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.8V | 1.2MHz | USPN-6 | |||
XC9245A19C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.9V | 1.2MHz | USPN-6 | |||
XC9245A1AC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.05V | 1.2MHz | USPN-6 | |||
XC9245A1BC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.15V | 1.2MHz | USPN-6 | |||
XC9245A1CC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.25V | 1.2MHz | USPN-6 | |||
XC9245A1DC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.35V | 1.2MHz | USPN-6 | |||
XC9245A1EC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.45V | 1.2MHz | USPN-6 | |||
XC9245A1FC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.55V | 1.2MHz | USPN-6 | |||
XC9245A1HC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.65V | 1.2MHz | USPN-6 | |||
XC9245A1KC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.75V | 1.2MHz | USPN-6 | |||
XC9245A1LC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.85V | 1.2MHz | USPN-6 | |||
XC9245A1MC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 1.95V | 1.2MHz | USPN-6 | |||
XC9245A20C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.0V | 1.2MHz | USPN-6 | |||
XC9245A21C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.1V | 1.2MHz | USPN-6 | |||
XC9245A22C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.2V | 1.2MHz | USPN-6 | |||
XC9245A23C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.3V | 1.2MHz | USPN-6 | |||
XC9245A24C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.4V | 1.2MHz | USPN-6 | |||
XC9245A25C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.5V | 1.2MHz | USPN-6 | |||
XC9245A26C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.6V | 1.2MHz | USPN-6 | |||
XC9245A27C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.7V | 1.2MHz | USPN-6 | |||
XC9245A28C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.8V | 1.2MHz | USPN-6 | |||
XC9245A29C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.9V | 1.2MHz | USPN-6 | |||
XC9245A2AC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.05V | 1.2MHz | USPN-6 | |||
XC9245A2BC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.15V | 1.2MHz | USPN-6 | |||
XC9245A2CC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.25V | 1.2MHz | USPN-6 | |||
XC9245A2DC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.35V | 1.2MHz | USPN-6 | |||
XC9245A2EC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.45V | 1.2MHz | USPN-6 | |||
XC9245A2FC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.55V | 1.2MHz | USPN-6 | |||
XC9245A2HC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.65V | 1.2MHz | USPN-6 | |||
XC9245A2KC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.75V | 1.2MHz | USPN-6 | |||
XC9245A2LC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.85V | 1.2MHz | USPN-6 | |||
XC9245A2MC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 2.95V | 1.2MHz | USPN-6 | |||
XC9245A30C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.0V | 1.2MHz | USPN-6 | |||
XC9245A31C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.1V | 1.2MHz | USPN-6 | |||
XC9245A32C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.2V | 1.2MHz | USPN-6 | |||
XC9245A33C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.3V | 1.2MHz | USPN-6 | |||
XC9245A34C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.4V | 1.2MHz | USPN-6 | |||
XC9245A35C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.5V | 1.2MHz | USPN-6 | |||
XC9245A36C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.6V | 1.2MHz | USPN-6 | |||
XC9245A37C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.7V | 1.2MHz | USPN-6 | |||
XC9245A38C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.8V | 1.2MHz | USPN-6 | |||
XC9245A39C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.9V | 1.2MHz | USPN-6 | |||
XC9245A3AC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.05V | 1.2MHz | USPN-6 | |||
XC9245A3BC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.15V | 1.2MHz | USPN-6 | |||
XC9245A3CC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.25V | 1.2MHz | USPN-6 | |||
XC9245A3DC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.35V | 1.2MHz | USPN-6 | |||
XC9245A3EC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.45V | 1.2MHz | USPN-6 | |||
XC9245A3FC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.55V | 1.2MHz | USPN-6 | |||
XC9245A3HC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.65V | 1.2MHz | USPN-6 | |||
XC9245A3KC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.75V | 1.2MHz | USPN-6 | |||
XC9245A3LC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.85V | 1.2MHz | USPN-6 | |||
XC9245A3MC7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 3.95V | 1.2MHz | USPN-6 | |||
XC9245A40C7R-G |
With CL Discharge, UVLO, Thermal Shutdown | 4.0V | 1.2MHz | USPN-6 |
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