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S-8541D00FN DC/DC Step-Down Converting PMIC 可调adj MSOP-8 marking 1ME Step-Down Converter
| 控制方式 MODE | PWM/PFM |
| 输入电压VIN Input Voltage | 2.3~10V |
| 输出电压VOUT Output Voltage | 可调adj |
| 输出电流IOUT Output Current | 120mA/0.12A |
| 震荡频率FOSC Oscillation Frequency | 300KHZ |
| 内置FET Built-in FET | |
| Description & Applications | STEP-DOWN,PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER •Oscillation frequency 600 kHz (A, B types) 300 kHz (C, D types) • Output voltage 1.5 to 6.0 V, selectable in 0.1V steps (A, C types) • Output voltage precision ±2.0% • Feed back type for output voltage (FB) • External components: a transistor, a coil, a diode, and capacitors • Built-in PWM/PFM switchover control circuit (S-8541 series) Duty ratio: 29% (PFM control) 29 to 100% (PWM control) • Current limit circuit Current is set by an external resistor RSENSE. • Soft-start Time is set by a capacitor CSS and a resistor RSS. • Shutdown function • Power supplies for PDAs, electric organizers, and portable devices. • Power supplies for audio equipment such as portable CD players and headphone stereos. • Main or sub Power supplies for notebook computers and peripheral equipment. |
| 描述与应用 | 降压PWM控制，PWM / PFM 切换开关稳压器控制器 •振荡频率600千赫（A，B型）300千赫（C，D型） •输出电压1.5〜6.0 V，0.1V步骤选择（A，C型） •输出电压精度±2.0％ •类型的输出电压反馈（FB） 外部元件：晶体管，线圈，二极管，电容器 •内置PWM/ PFM切换控制 电路（S-8541系列） 占空比：29％（PFM控制） 29至100％（PWM控制） •电流限制短路电流通过一个外部电阻RSENSE设置。 •软启动时间是由一个电容CSS和一个电阻RSS。 •关机功能 •掌上电脑，电动组织者和便携式设备的电源。 •电源音频设备，如便携式CD播放器和立体声耳机。 •主或副电源为笔记本电脑和外围设备。 |
