S-8354A40MC DC/DC升压转换器电源管理IC 4V SOT-153/SOT23-5 marking/标记 JQZ PWM控制，PWM / PFM切换，内置的晶体管开关稳压器
| 控制方式MODE | PWM/PFM |
| 输入电压VINInput Voltage | 〈10V |
| 输出电压VOUTOutput Voltage | 4V |
| 输出电流IOUTOutput Current | 282mA/0.282A |
| 震荡频率FOSCOscillation Frequency | 250KHz |
| 内置FETBuilt-in FET | 有 |
| Description & Applications | STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR • Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed • Low current consumption : During operation 18.7 μA (3.3 V, 50 kHz, typ.) During shutdown: 0.5 μA (max.) • Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series) 15 % to 83 % (30 kHz and 50 kHz models) 15 % to 78 % (250 kHz models) • External parts : Coil, capacitor, and diode • Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types) Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types) • Output voltage accuracy : ±2.4% • Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable • Soft start function : 6 ms (50 kHz, typ.) • Lead-free, Sn 100%, halogen-free • Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs • Power supplies for audio equipment such as portable CD / MD players • Constant voltage power supplies for cameras, VCRs, and communication devices • Power supplies for micro |
| 描述与应用 | STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR •低电压工作：启动以0.9 V。 （IOUT = 1 mA时）保证 •低功耗：工作时18.7μA（3.3 V，50 kHz，典型值） 休眠时：0.5μA（最大值） •占空比：内置PWM/ PFM切换控制电路（S-8354系列） 15％至83％（30千赫和50千赫模型） 15％〜78％（250千赫型号） •外部部件：线圈，电容器和二极管 •输出电压：0.1 V步长之间1.5 V和6.5 V（VDD/ VOUT分离型可选） 可选择在0.1 V步骤之间2.0 V和6.5 V（VDD/ VOUT分离型以外） •输出电压精度：±2.4％ •振荡频率：30千赫，50千赫，250千赫可选 •软启动功能：6毫秒（50 kHz，典型值） •无铅，SN100％，无卤素的 •电源的便携式设备，如数码相机，电子记事本，PDA •电源音频设备，如便携式CD/ MD播放器 •恒压电源，摄像机，录像机，通信设备 •微机用电源 |
| 规格书PDF |
