sc643 Semtech Corporation, sc643 Datasheet - Page 22

• Manufacturer Part Number: sc643
• Description: Light Management Unit With 4 Ldos And Sempulse Interface
• Manufacturer: Semtech Corporation

Register Map (continued)
LDO2 Control Register (06h)
This register is used to enable LDO2 and set its output
voltage level.
Bits [D5:D3]
These bits are unused and are always zeroes.
These bits are used to set the output voltage of LDO2 in
accordance with Table 7.
LDO3 Control Register (07h)
This register is used to enable LDO3 and set its output
voltage level.
Bits [D5:D4]
These bits are unused and are always zeroes.
LDO2V2 through LDO2V0 [D2:D0]
LDO2V2
0
0
0
0
1
1
1
1
Table 7 — LDO2 Control Codes
LDO2V1
0
0
1
1
0
0
1
1
LDO2V0
0
1
0
1
0
1
0
1
V
OFF
1.8V
1.7V
1.6V
1.5V
1.4V
1.3V
1.2V
LDO2
LDO3V3 through LDO3V0 [D3:D0]
These bits are used to set the output voltage of LDO3 as
shown in Table 8.
LDO3V3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
LDO3V2
Table 8 — LDO3 Control Codes
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
LDO3V1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
LDO3V0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
SC643
V
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
1.8V
1.7V
1.6V
1.5V
OFF
2.2v
LDO3
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