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HT1117-50 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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HT1117-50 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
3 / 10 page Electrical Characteristics TJ=25 °C, VIN=VOUT+1.5V, IO=10mA, unless otherwise specified (see note 1) Symbol Parameter Test Conditions Min. Typ. Max. Unit VREF Reference Voltage 2.75V £ VIN £ 12V 1.225 1.250 1.275 V VOUT Output Voltage HT1117-18 1.764 1.800 1.836 V HT1117-25 2.45 2.50 2.55 V HT1117-28 2.793 2.850 2.907 V HT1117-33 3.234 3.300 3.366 V HT1117-50 4.90 5.00 5.10 V DVLOAD Load Regulation (see note 2) 10mA £ IOUT £ 1A 1 ¾ 30 mV DVLINE Line Regulation 2.75V £ VIN £ 12V ¾ 0.015 0.150 %/V VDIF Dropout Voltage (see note 3) DVOUT=2%, IOUT=1A ¾ 1.1 1.3 V ILIMIT Current Limit (see note 4) DVOUT=10% 1 2.3 ¾ A IADJ Adjust Pin Current (Variable Version) 2.75V £ VIN £ 12V ¾ 55 120 mA ISS Quiescent Current (Fixed Version) 2.75V £ VIN £ 12V ¾ 813 mA RR Ripple Rejection 120Hz input ripple COUT=22 mF ¾ 60 ¾ dB Temperature Coefficient -40°C<Ta<85°C ¾±0.4 ¾ mV/ °C Note: 1. Specifications are production tested at room temperature, Ta. Specifications within the -40°Cto85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). 2. Load regulation is measured at a constant junction temperature, using pulse testing with a low ON time and is guaranteed up to the maximum power dissipation. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. The maximum allowable power dissipation at any ambient temperature is PD =(TJ(MAX) - Ta) / qJA. 3. Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at VIN =VOUT+1.5V with a fixed load. 4. Current limit is measured by pulsing for a short time. HT1117 Series Rev. 1.00 3 August 7, 2007 D V O U T D T a |
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