EFP01 datasheet(137/158 Pages) SILABS

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6.2.42 LDOB_CTRL

Offset

Bit Position

0x53

Reset

0x00

Access

Name

Table 6.42. LDOB_CTRL

Bit

Name

Reset

Access

Description

LDO_NO_AUTO_BYP

read-write

If set, neither LDO B or LDO C goes into bypass automati-

cally.

LDOB_BYP

read-write

If set, when LDO B is enabled it acts only as a bypass

switch

5:4

LDOB_VMIN

0x00

read-write

Defines voltage at which output current becomes voltage

independent for LDO B. Recommended to set

LDOB_VMIN based on the target VOB voltage as given

below:

LDOB_VMIN=3 for VOB targets >=2.7V

LDOB_VMIN=2 for VOB targets between 2.4V and 2.7V

LDOB_VMIN=1 for VOB targets between 2.0V and 2.4V

LDOB_VMIN=0 for VOB targets < 2.0V

3:0

LDOB_IGAIN

0x00

read-write

Determines the maximum output current supported by

LDO B. Recommend to set to the maximum expected load

current plus some margin.

i_max = VOB / (2.76 * ( 17 - LDOB_IGAIN ) )

EFP01 Energy Friendly PMIC Family Data Sheet

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