MIC7400_15 Datasheet, PDF (64/68 Pages) Micrel Semiconductor – Configurable PMIC, Five-Channel Buck Regulator Plus One-Boost with HyperLight Load® and I2C Control

Micrel, Inc.
MIC7400
Table 26. Current-Limit Register IOUT3 and IOUT4
Register Name
ILIMIT_3-4_REG
Current-Limit Register for VOUT3 and VOUT4
Address
0x1C’h
Field
bit R/W Default Description
Normal current-limit for regulator 3 from 8.6A to 1.1A in 0.5A decrements
REG3CL
3:0 R/W
1001
(4.1A)
0000 = 8.6A
0001 = 8.1A
0010 = 7.6A
0100 = 6.6A
0101 = 6.1A
0110 = 5.6A
1000 = 4.6A
1001 = 4.1A
1010 = 3.6A
1100 = 2.6 A
1101 = 2.1A
1110 = 1.6A
0011 = 7.1A
0111 = 5.1A
1011 = 3.1A
1111 = 1.1A
Normal current-limit for regulator 4 from 8.6A to 1.1A in 0.5A decrements
REG4CL
7:4 R/W
0101
(6.1A)
0000 = 8.6A
0001 = 8.1A
0010 = 7.6A
0100 = 6.6A
0101 = 6.1A
0110 = 5.6A
1000 = 4.6A
1001 = 4.1A
1010 = 3.6A
1100 = 2.6 A
1101 = 2.1A
1110 = 1.6A
0011 = 7.1A
0111 = 5.1A
1011 = 3.1A
1111 = 1.1A
Table 27. Current-Limit Register IOUT 5 and IOUT6
Register Name
ILIMIT_5-6_REG
Current-Limit Register for VOUT5 and VOUT6
Address
0x1D’h
Field
bit R/W Default Description
Normal current-limit for regulator 5 from 8.6A to 1.1A in 0.5A decrements
REG5CL
3:0 R/W
1001
(4.1A)
0000 = 8.6A
0001 = 8.1A
0010 = 7.6A
0100 = 6.6A
0101 = 6.1A
0110 = 5.6A
1000 = 4.6A
1001 = 4.1A
1010 = 3.6A
1100 = 2.6 A
1101 = 2.1A
1110 = 1.6A
0011 = 7.1A
0111 = 5.1A
1011 = 3.1A
1111 = 1.1A
REG6CL
Current limit from 2.6A to 1.78A in 0.12A decrements
011
6:4 R/W
000 = 2.6A
(2.24A)
010 = 2.36A
100 = 2.12A
001 = 2.48A
011 = 2.24A
101 = 2.00A
110 = 1.88A
111 = 1.76A
7 R/W
0
0 = Current Limit On
1 = Current Limit Off
March 3, 2015
64
Revision 2.0