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LP3990-Q1 Datasheet(PDF) 10 Page - Texas Instruments |
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LP3990-Q1 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 22 page LP3990-Q1 SNVSA66 – OCTOBER 2014 www.ti.com 7.4 Device Functional Modes 7.4.1 Enable (EN) The LP3990-Q1 EN pin is internally held low by a 1-M Ω resistor to GND. The EN pin voltage must be higher than the VIH threshold to ensure that the device is fully enabled under all operating conditions. 7.4.2 Minimum Operating Input Voltage (VIN) The LP3990-Q1 does not include any dedicated UVLO circuitry. The LP3990-Q1 internal circuitry is not fully functional until VIN is at least 2 V. The output voltage is not regulated until VIN ≥ (VOUT + VDO), or 2 V, whichever is higher. 10 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: LP3990-Q1 |
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Similar Description - LP3990-Q1_15 |
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