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HT7250 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT7250 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 12 page  HT72XX Series 300mA TinyPowerTM LDO Selection Table Part No. Output Voltage Tolerance Package HT7218 1.8V ±2% SOT-23 SOT-89 TO-92 HT7225 2.5V HT7227 2.7V HT7230 3.0V HT7233 3.3V HT7250 5.0V Block Diagram Rev. 1.10 1 June 20, 2007 Features · Output voltage ranges: Fixed range of 1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 5.0V type. · Highly accuracy: ±2% · Low voltage drop: 240mV (typ.), VOUT=5.0V at 300mA · Maximum Input Voltage: 8V · Guaranteed output current: 300mA · Low quiescent current: 5mA (typ.) · Current limiting · Over-temperature shutdown · SOT-23, SOT-89, TO-92 Packages Applications · Portable electronics · Wireless devices · Cordless phones · PC peripherals · Battery powered devices · Electronic scales General Description The HT72XX series of positive, linear regulators fea- tures low quiescent current (5 mA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-23 package is attractive for ²Pocket² and ²Hand Held² applications. The devices are capable of supplying 300mA of output current continuously. They are available with several fixed output voltages ranging from 1.8V to 5.0V. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents. These rugged devices have Thermal Shutdown and Current Limiting to prevent device failure under the ²Worst² of operating conditions. V O U T V I N G N D V r e f R 1 R 2 A M P O v e r c u r r e n t S h u t d o w n T h e r m a l S h u t d o w n |
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