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

质量保证文件

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

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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