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R1218K041A DC/DC Step-Up Converter PLP1820-6 marking T00 Step-up DC/DC converter for White LED Backlight

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Product description
控制方式
MODE
PWM
输入电压VIN
Input Voltage
1.8~5.5V
输出电压VOUT
Output Voltage
输出电流IOUT
Output Current
震荡频率FOSC
Oscillation Frequency
1.2MHz
内置FET
Built-in FET
NMOS
Description & ApplicationsStep-up DC/DC converter for White LED Backlight • Operating voltage 1.8V to 5.5V • Built-in 400mA, 1.5Ω, 20V Nch MOSFET (R1218xxx1A) • Oscillator Frequency (PWM control) 1.2MHz • Maximum Duty Cycle 91% • Feedback Voltage 0.2V • UVLO Threshold Voltage 1.6V (Hysteresis Typ. 0.1V) • Lx Current limit Protection 700mA • Over Voltage Protection (OVP) Threshold Typ. 9.5V (R1218x021A) 18.5V (R1218x041A) • LED dimming control. by external PWM signal (Frequency 200Hz to 5kHz) to CE pin by feedback voltage and filtered PWM signal (high frequency) • PackagesSOT-23-6 or PLP1820-6 • White LED Backlight for portable equipment
描述与应用升压型DC/ DC转换器,用于白色LED背光 •工作电压1.8V至5.5V •内置1.5Ω,在400mA的20V N沟道MOSFET(R1218xxx1A) •振荡器频率(PWM控制)1.2MHz的 •最大占空比91% •反馈电压0.2V •UVLO阈值电压1.6V(0.1V滞后典型。) •LX电流限制保护700毫安 •过电压保护(OVP)阈值典型值。 9.5V(R1218x021A)  18.5V(R1218x041A) •LED调光控制。由外部PWM信号(频率200Hz到5kHz)CE引脚 反馈电压和滤波PWM信号(高频) •PackagesSOT-23-6或PLP1820-6 •用于便携设备的白光LED背光
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