SC905
POWER MANAGEMENT
Register Map (Cont.)
Digital LDO Voltage Table A
A 5-bit linear DAC controls the output voltage of each LDO. The DAC and error-amp gain are scaled so that the LSB size
at the output is 50mV. Output voltage can be set by writing the proper code to the desired LDO register. See Table A
for the bitcodes and their corresponding voltages.
TABLE A - Output Voltage Code Bits for VCORE, VPAD, VMOT and VCAM
X4
X3
X2
X1
X0
LDO Output
Voltage
0
0
0
0
0
1.35V
0
0
0
0
1
1.40V
0
0
0
1
0
1.45V
0
0
0
1
1
1.50V
0
0
1
0
0
1.55V
0
0
1
0
1
1.60V
0
0
1
1
0
1.65V
0
0
1
1
1
1.70V
0
1
0
0
0
1.75V
0
1
0
0
1
1.80V
0
1
0
1
0
1.85V
0
1
0
1
1
1.90V
0
1
1
0
0
1.95V
0
1
1
0
1
2.00V
0
1
1
1
0
2.05V
0
1
1
1
1
2.10V
1
0
0
0
0
2.15V
1
0
0
0
1
2.20V
1
0
0
1
0
2.25V
1
0
0
1
1
2.30V
1
0
1
0
0
2.35V
1
0
1
0
1
2.40V
1
0
1
1
0
2.45V
1
0
1
1
1
2.50V
1
1
0
0
0
2.55V
1
1
0
0
1
2.60V
1
1
0
1
0
2.65V
1
1
0
1
1
2.70V
1
1
1
0
0
2.75V
1
1
1
0
1
2.80V
1
1
1
1
0
2.85V
1
1
1
1
1
2.90V
© 2006 Semtech Corp.
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