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RH5RH553B-T1 DC/DC Step-Up Converter 5.5V SOT89-5 marking 553B PWM STEP-UP DC/DC CONVERTER
| 控制方式 MODE | PWM |
| 输入电压VIN Input Voltage | ≤8V |
| 输出电压VOUT Output Voltage | 5.5V |
| 输出电流IOUT Output Current | 1mA |
| 震荡频率FOSC Oscillation Frequency | 50KHz |
| 内置FET Built-in FET | |
| Description & Applications | PWM STEP-UP DC/DC CONVERTER • Small Number of External Components Only an inductor, a diode and a capacitor (RH5RH××1A) • Low Supply Current 15µA • Low Ripple and Low Noise • Low Start-up Voltage (when the output current is 1mA) .MAX. 0.9V • High Output Voltage Accuracy. ±2.5% • High Efficiency . 85% • Low Temperature-Drift Coefficient of Output Voltage . ±50 ppm/˚C • Soft-Start .MIN. 500µs • Small Packages SOT-89 (RH5RH××1A, RH5RH××2B), SOT-89-5 (RH5RH××3B) • Power source for battery-powered equipment. • Power source for cameras, camcorders, VCRs, PDAs, electronic data banks,and hand-held communication equipment. • Power source for instruments which require low noise and low supply current, such as hand-held audio equipment. • Power source for appliances which require higher cell voltage than that of batteries used in the appliances |
| 描述与应用 | PWM升压型DC / DC转换器 •小的外部元件数目只有一个电感，一个二极管和一个电容（RH5RH××1A） •低电源电流15μA •低纹波，低噪声 •低启动电压（输出电流为1mA时）最大。 0.9V •高输出电压精度。 ±2.5％ •高效率。 85％的 •低输出电压的温度漂移。 ±50 PPM /˚C •软启动。最小。 500μs的 •小封装SOT-89（RH5RH××1A，RH5RH××2B） SOT-89-5（RH5RH××3B） •电池供电设备的电源。 •电源相机，摄像机，录像机，掌上电脑，电子数据银行，和手持通信 的设备。 •电源要求低噪音和低电源电流，如手持式音频设备仪器。 •电源设备需要更高的电池电压比在家电使用的电池 |
