+Tranch MOSFET +Low Vf Schottky NEW +AC-DC Green Mode PWM   Controller +Step Down Voltage Regulator +DC-DC Converter &   LED Driver +Shunt Regulators +ESD Array DC-DC Converter   • DC-DC Setp-Up Converter For White LED Driver Part No. Efficiency Operation Voltage Feedback Voltage SW Vout Voltage Iout Frequency Backlight Control Control Model Package Data Sheet % V mV V mA MHZ Type Type STD1937 87 2.5 ~ 12 95 36 380 1.25 Series PWM SOT-23-5L SOT-353 STD1938 85 2.4 ~ 7 86 ~ 110 36 320 0.68 ~ 1 Series PWM SOT-23-6L

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