SS91

Overview

SS91 is a low-power, high-efficiency, PFM-controlled synchronous boost converter. On the basis of PFM, the independent patented technology is adopted, which on the one hand eliminates the influence of the output capacitance ESR of the converter on the stability and improves the steady-state accuracy of the output voltage. On the other hand, the operating frequency of the system is as high as 1.2MHz, while maintaining ultra-low quiescent current to achieve the highest conversion efficiency.

Feature

• Highest Efficiency：95%
• Highest Operating Frequency：1.2MHz
• Ultra-low start voltage：0.65V @ Io=1mA
• Quiescent Current on VOUT：6μA @ VOUT=3.4V
• Quiescent Current on VIN：12μA @ VIN=1.8V
• Output Voltage Selectable：1.8V~5.0V @ step=0.1V
• Output Voltage Accuracy：±2.5%
• Wide Input Voltage：0.65V~5.0V
• Low ripple, low noise：±10mV @ Io=50mA

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