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LP8725TLE-A/NOPB Datenblatt(PDF) 8 Page - Texas Instruments

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Teilenummer LP8725TLE-A/NOPB
Bauteilbeschribung  LP8725 Power Management Unit for Application or Multimedia Processors and Subsystems
PDF  46 Pages
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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LP8725TLE-A/NOPB Datenblatt(HTML) 8 Page - Texas Instruments

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PWR_ON
PS_HOLD
DVS Control
30 ms
(note 2)
30 ms
BUCK
(note 1)
30 ms
RESET_N
LDO
(note 1)
PWR_ON
PS_HOLD
BUCK
(note 1)
RESET_N
LDO
(note 1)
EN
DVS Control
BUCK
(note 1)
RESET_N
LDO
(note 1)
BUCK
(note 1)
RESET_N
LDO
(note 1)
EN
30 ms
LP8725
SNVS618G – DECEMBER 2009 – REVISED MAY 2013
www.ti.com
Power On and Power Off Sequences
Figure 3. Simplified startup Sequence if CONFIG=GND (SUB_PMU)
All timing is typical.
Note 1 See detailed on/off sequence diagrams for the different DEFSEL options.
Note 2 PS_HOLD needs to be held low for >30 ms before RESET_N is asserted low. PMU should then start
shutdown sequence opposite of startup sequence.
Figure 4. Simplified Startup Sequence if CONFIG=VIN1 (PMU)
8
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Product Folder Links: LP8725



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