MAX14720 Datasheet, PDF (21/38 Pages) Maxim Integrated Products – Extended System Battery Use Time

MAX14720/MAX14750
Power-Management Solution
Table 12. LDOCfg Register (0x0B)
ADDRESS:
BIT
NAME
0x0B
7
6
5
LDOSeq[2:0] (Read-Only)
4
LDOPasDsc
3
LDOActDsc
2
1
LDOEn[1:0]
0
LDOMode
LDOSeq[2:0]
LDO Enable Configuration (Read-Only)
000 = Disabled
001 = Enabled always when BAT/SYS is present
010 = Enabled at 0% of Boot/POR Process Delay Control
011 = Enabled at 25% of Boot/POR Process Delay Control
100 = Enabled at 50% of Boot/POR Process Delay Control
101 = Disabled
110 = Controlled by LEN (MAX14750)
111 = Controlled by LDOEn[1:0] after 100% of Boot/POR Process Delay Control
LDOPasDsc
LDOActDsc
LDO Passive Discharge Control
0: LDO output will be discharged only entering off and hard-reset modes.
1: LDO output will be discharged only entering off and hard-reset modes and when the enable is low.
LDO Active Discharge Control
0: LDO output will be actively discharged only entering off and hard-reset modes.
1: LDO output will be actively discharged only entering off and hard-reset modes and when the enable is low.
LDOEn[1:0]
LDO Enable Configuration (effective only when LDOSeq[2:0] == 111)
00 = Disabled
01 = Enabled
10 = Enabled when MPC is high
11 = Reserved
LDOMode
LDO Mode Control
0 = Normal LDO operating mode
1 = Load switch mode. FET is either fully on or off depending on the state of LDOEn. When FET is on, the
output is unregulated and is not affected by UVLO’s control block. This setting is internally latched and can
change only when the LDO is disabled.
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