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S-8541D00FN DC/DC Step-Down Converting PMIC 可调adj MSOP-8 marking 1ME Step-Down Converter

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Product description
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 & ApplicationsSTEP-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。
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