LTC3589 Linear Technology, LTC3589 Datasheet - Page 37

• Manufacturer Part Number: LTC3589
• Description: 8-Output Regulator
• Manufacturer: Linear Technology

OPERATION
Table 16. LTC3589 Command Register Table
0x24 B1DTV2 Keep-Alive
0x25 VRRCR LDO2 Dynamic Reference
0x26 B2DTV1 Unused
0x27 B2DTV2 Keep-Alive
0x29 B3DTV1 Unused
0x2A B3DTV2 Keep-Alive
Mode:
0 = Normal
Shutdown
1 = Keep-Alive
Slew Rate:
00 = 0.88mV/μs
01 = 1.75mV/μs
10 = 3.5mV/μs
11 = 7mV/μs
Mode:
0 = Normal
Shutdown
1 = Keep-Alive
Mode:
0 = Normal
Shutdown
1 = Keep-Alive
Phase
Select:
0 = Clock
Phase 1
1 = Clock
Phase 2
Phase
Select:
0 = Clock
Phase 1
1 = Clock
Phase 2
Phase
Select:
0 = Clock
Phase 1
1 = Clock
Phase 2
Step-Down
Switching
Regulator 1
Clock Rate
0 = 2.25MHz
1 = 1.12MHz
Step-Down Switching
Regulator 3 Dynamic
Reference Slew Rate:
00 = 0.88mV/μs
01 = 1.75mV/μs
10 = 3.5mV/μs
11 = 7mV/μs
PGOOD
Mask:
0 = PGOOD
Low When
Slewing
1 = PGOOD
Not Forced
Low When
Slewing.
Step-Down
Switching
Regulator 2
Clock Rate
0 = 2.25MHz
1 = 1.125MHz
PGOOD
Mask:
0 = PGOOD
Low When
Slewing
1 = PGOOD
Not Forced
Low When
Slewing.
Step-Down
Switching
Regulator 3
Clock Rate
0 = 2.25MHz
1 = 1.125MHz
Step-Down Switching Regulator 1 Feedback Reference Input (V2)
Step-Down Switching Regulator 2 Feedback Reference Input (V1)
Step-Down Switching Regulator 2 Feedback Reference Input (V2)
Step-Down Switching Regulator 3 Feedback Reference Input (V1)
Step-Down Switching Regulator 3 Feedback Reference Input (V2)
Step-Down Switching
Regulator 2 Dynamic
Reference Slew Rate:
00 = 0.88mV/μs
01 = 1.75mV/μs
10 = 3.5mV/μs
11 = 7mV/μs
Step-Down Switching
Regulator 1 Dynamic
Reference Slew Rate:
00 = 0.88mV/μs
01 = 1.75mV/μs
10 = 3.5mV/μs
11 = 7mV/μs
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LTC3589
1111 1111
1111 1111
0001 1001
0001 1001
0001 1001
0001 1001
37
3589p