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HT1117-50 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT1117-50 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
1 / 10 page HT1117 Series 1A General Purpose LDO Selection Table Part No. Output Voltage Package Marking HT1117-ADJ Adjust SOT-223 HT1117-ADJ HT1117-18 HT1117-25 HT1117-28 HT1117-33 HT1117-50 HT1117-18 1.8V HT1117-25 2.5V HT1117-28 2.85V HT1117-33 3.3V HT1117-50 5.0V Note: For lead free devices, a ²#² mark is suffixed at the end of the date code. Block Diagram Rev. 1.00 1 August 7, 2007 Features · Output voltage ranges: Fixed range of 1.8V, 2.5V, 2.85V, 3.3V, 5.0V or adjustable type. · High accuracy: ±2% · Low voltage drop: 1.1V (typ.), VOUT=5.0V at 1A · Guaranteed output current: 1A · Low quiescent current: 8mA (typ.) · Integrated current limit & thermal protection circuits · SOT-223 package Applications · Active SCSI terminations · Post regulator for switching power supplies · Low voltage microcontrollers · Motherboard clock supplies · Battery chargers General Description The HT1117 devices are a series of three-terminal high current low voltage regulators. They can deliver an out- put current of 1A and can accept input voltages up to 12V. The devices are available in both adjustable and fixed output voltage type with a range of 1.8V to 5.0V. In- ternal current limit and thermal protection circuits pro- vide protection against overload conditions that could create excessive junction temperatures. V I N C u r r e n t L i m i t i n g A m p l i f i e r B a n d g a p R e f e r e n c e T h e r m a l P r o t e c t i o n E r r o r A m p . G N D V O U T A D J |
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