S-8521D33MC DC/DC降压转换电源IC 3.3V SOT-153/SOT23-5 marking/标记 BXS 降压PWM控制，PWM /PFM切换
控制方式MODE| PWM/PFM \---|--- 输入电压VINInput Voltage| 2.3~10V 输出电压VOUTOutput Voltage| 3.3V 输出电流IOUTOutput Current| 120mA/0.12A 震荡频率FOSCOscillation Frequency| 60KHZ 内置FETBuilt-in FET| Description & Applications| STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER •On-board power supplies of battery devices for mobile phone, electronic notebooks, PDAs. • Power supplies for audio equipment, including portable CD players and headphone stereo equipment. • Fixed voltage power supply for cameras, video and communication devices. • Power supplies for microcomputers • Conversion of AC adapter input to 5 V / 3 V. 描述与应用| 降压PWM控制，PWM / PFM切换 开关稳压控制器 •板载电源，手机，电子笔记本电脑，PDA电池设备。 •电源音响设备，包括便携式CD播放器和立体声耳机设备。 •固定相机，视频和通信设备的稳压电源。 •微机用电源 •AC适配器输入转换为5 V / 3 V。