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LP5990TM-1.8/NOPB Datasheet(PDF) 10 Page - Texas Instruments

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Part # LP5990TM-1.8/NOPB
Description  LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP5990TM-1.8/NOPB Datasheet(HTML) 10 Page - Texas Instruments

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LP5990
SNVS438B – APRIL 2007 – REVISED DECEMBER 2007
www.ti.com
ENABLE CONTROL
The LP5990 may be switched ON or OFF by a logic input at the ENABLE pin, VEN . A high voltage at this pin will
turn the device on. When the enable pin is low, the regulator output is off and the device typically consumes 3
nA. If the application does not require the shutdown feature, the VEN pin should be tied to VIN to keep the
regulator output permanently on.
The signal source used to drive the VEN input must be able to swing above and below the specified turn-on/off
voltage thresholds listed in the Electrical Characteristics section under VIL and VIH.
DSBGA MOUNTING
The DSBGA package requires specific mounting techniques, which are detailed in TI Application Note AN-1112
(SNVA009).
For best results during assembly, alignment ordinals on the PC board may be used to facilitate placement of the
DSBGA device.
DSBGA LIGHT SENSITIVITY
Exposing the DSBGA device to direct light may cause incorrect operation of the device. Light sources such as
halogen lamps can affect electrical performance if they are situated in proximity to the device.
Light with wavelengths in the red and infra-red part of the spectrum have the most detrimental effect thus the
fluorescent lighting used inside most buildings has very little effect on performance.
10
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Copyright © 2007, Texas Instruments Incorporated
Product Folder Links: LP5990


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