SC900AMLTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC900AMLTRT' PDF : 23 Pages View PDF
SC900A
POWER MANAGEMENT
Applications Information (Cont.)
Output Voltage Code Bits:
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 for LDOs A and B, and Table B for the bitcodes and corresponding
voltages for LDOs C, D and E.
Table A - LDO Output Voltage Control Settings for LDOs A and B
BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
LDO Output Voltage
0
0
0
0
0
1.45V
0
0
0
0
1
1.50V
0
0
0
1
0
1.55V
0
0
0
1
1
1.60V
0
0
1
0
0
1.65V
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
1
0
2.95V
1
1
1
1
1
3.00V
Table B - LDO Output Voltage Control Settings for LDOs C, D and E
BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
LDO Output Voltage
0
0
0
0
0
1.75V
0
0
0
0
1
1.80V
0
0
0
1
0
1.85V
0
0
0
1
1
1.90V
0
0
1
0
0
1.95V
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
1
0
3.25V
1
1
1
1
1
3.30V
© 2005 Semtech Corp.
13
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