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LM5085SDE/NOPB Datasheet(PDF) 16 Page - Texas Instruments

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No. de pieza LM5085SDE/NOPB
Descripción Electrónicos  75V Constant On-Time PFET Buck Switching Controller
PDF  33 Pages
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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LM5085SDE/NOPB Datasheet(HTML) 16 Page - Texas Instruments

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LM5085, LM5085-Q1
SNVS565I – NOVEMBER 2008 – REVISED AUGUST 2015
www.ti.com
7.4 Device Functional Modes
7.4.1 Standby Mode with VIN <4.5 V
The LM5085 is intended to operate with input voltages above 4.5 V. The minimum operating input voltage is
determined by the VCC undervoltage lockout threshold of 3.8 V (typ). If VIN is too low to support a VCC voltage
greater than the VCC UVLO threshold, the controller switches to the standby mode with the PFET buck switch in
the off state.
7.4.2 RT Shutdown Mode
The LM5085 is in shutdown mode when the RT pin is pulled below 0.73 V (typ). In this mode, the PFET gate
driver is held off and the VCC regulator is disabled.
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