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HT77S11 Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT77S11 Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
4 / 16 page Electrical Characteristics VIN=2V, SHDN=FB=OUT, VOUT=3.3V, refer to figure 1 unless otherwise specified, Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VIN Operating Input Voltage ¾¾ ¾ 5.5 V VIN-MIN Minimum Input Voltage ¾¾ 0.7 ¾ V VIN-START Start-up Input Voltage RL=3k W¾ 0.7 0.9 V VOUT Output Voltage FB=OUT 3.17 3.30 3.43 V FB=GND 4.80 5.00 5.20 V VIN <VOUT, FB using two external resistors 1.80 ¾ 5.50 V VREF Reference Voltage IREF=0 1.268 1.300 1.333 V VREF-LOAD Reference Load Regulation IREF=0 to 150 mA ¾ 10 30 mV VREF-LINE Reference Line Regulation VOUT= 2V to 5.5V ¾ 5 10 mV/V RDS(ON) Internal PMOS and N-MOS On Resistance IL=100mA ¾ 0.3 ¾W ILIM Internal NMOS Switch Current Limit HT77S10 0.80 1.00 1.20 A HT77S11 0.40 0.55 0.75 A ILEAK Internal N-MOS Leakage Current VLX=4V, VOUT=5.5V ¾ 0.05 1.00 mA IOUT Steady-State Output Current FB=OUT HT77S10 300 350 ¾ mA HT77S11 150 300 ¾ mA FB=GND HT77S10 180 230 ¾ mA HT77S11 90 160 ¾ mA IQ Quiescent Current VFB=1.4V, VOUT=3.3V ¾ 20 35 mA VFB FB Input Threshold ¾ 1.268 1.300 1.333 V VLBI LBI Input Threshold ¾ 1.268 1.300 1.333 V VLBO LBO Low Output Voltage VLBI=0, ISINK=1mA ¾ 0.2 0.4 V ILBO LBO Off Leakage Current VLBO =5.5V, VLBI=5.5V ¾ 0.07 1.00 mA ISHDN Shutdown Current SHDN=GND ¾ 0.1 1 mA VIH SHDN Pin Voltage High ¾ 1.5 ¾¾ V VIL SHDN Pin Voltage Low ¾¾ ¾ 0.4 V tON(MAX) LX Switch On Time VFB=1V, VOUT=3.3V 247 ms tOFF(MIN) LX Switch Off Time VFB=1V, VOUT=3.3V 0.6 0.9 1.4 ms h Efficiency VOUT=3.3V, IO=200mA ¾ 90 ¾ % VIN=1.1V,VOUT=2.0V, IO=1mA ¾ 85 ¾ % Note: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. The guaranteed specifications apply only for the test conditions listed. Specifications are production tested at Ta=25 degree. Specifications over -40 to 85 degree operating tempera- ture range are assured by design. HT77S10/HT77S11 Rev. 1.00 4 February 3, 2010 |
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