R1218K041A DC/DC升压转换器电源管理IC PLP1820-6 marking/标记 T00 升压型DC/ DC转换器，用于白色LED背光
| 控制方式MODE | PWM |
| 输入电压VINInput Voltage | 1.8~5.5V |
| 输出电压VOUTOutput Voltage | |
| 输出电流IOUTOutput Current | |
| 震荡频率FOSCOscillation Frequency | 1.2MHz |
| 内置FETBuilt-in FET | NMOS |
| Description & Applications | Step-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 |
| 规格书PDF |
