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ADP2102-EVAL Datasheet(PDF) 4 Page - Analog Devices |
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ADP2102-EVAL Datasheet(HTML) 4 Page - Analog Devices |
4 / 7 page Preliminary Technical Data ADP2102 Rev. PrA | Page 4 of 7 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 3.Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 MODE Mode Input. To set the ADP2102 to Forced Continuous Conduction Mode (CCM), drive MODE high. To set the ADP2102 to Power Saving Mode (PSM), drive MODE low. 2 EN Enable Input. Drive EN high to turn on the ADP2102. Drive EN low to turn it off and reduce the input current to 0.1μA. This pin cannot be left floating. 3 FB/OUT Output Sense Input or Feedback Input. For fixed output versions, OUT is the top of the internal resistive voltage divider. Connect OUT to the Output Voltage. For adjustable (non-suffix) versions, FB is the input to the error amplifier. Drive FB through a resistive voltage divider to set the output voltage. The FB regulation threshold is 0.8V. 4 AGND Analog Ground. Connect AGND to PGND at a single point as close as to the ADP2102 as possible. 5 PGND Power Ground. 6 LX Switch Output. LX is the drain of the p-channel MOSFET switch and n-channel Synchronous rectifier. Connect the output LC filter between LX and output voltage. 7 PVIN Power Source Input. Drive PVIN with a 2.7V to 5.5V power source. 8 AVIN Power Source Input. AVIN is the supply for the ADP2102 internal circuitry. For noise reduction, place an external RC filter between PVIN and AVIN. |
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