Datasheet

Start-up configurations L6460
42/139 Doc ID 17713 Rev 1
8.6.2 Primary regulator mode (KP)
In this configuration bridge 4 can be configured by firmware while bridge 3 is configured as
two separate synchronous switching regulators. The last regulator in the sequence
(V
AUX2_SW
) is not considered a system regulator.
When in this mode the power-up sequence is:
1. Auxiliary switching regulator1 (V
AUX1_SW
).
2. Main switching regulator (V
SWmain
) together with main linear regulator (V
LINmain
).
3. Auxiliary switching regulator2 (V
AUX2_SW
) (Not system regulator).
8.6.3 Regulators mode
In this configuration bridge 4 can be configured by firmware while bridge 3 is configured as
two separate synchronous switching regulators, but the start up sequence is different
previous one.
When in this mode the power-up sequence is:
1. Main switching regulator (V
SWmain
).
2. Auxiliary switching regulator1 (V
AUX1_SW
)
3. Auxiliary switching regulator2 (V
AUX2_SW
)
8.6.4 Simple regulator mode (KT)
Also in this configuration bridge 4 can be configured by firmware while bridge 3 is configured
as two separate synchronous switching regulators. The last regulator in the sequence
(V
SWmain
) is not considered a system regulator.
When in this mode the power-up sequence is:
1. Auxiliary switching regulator1 (V
AUX1_SW
).
2. Auxiliary switching regulator2 (V
AUX2_SW
)
3. Main linear regulator (V
LINmain
)
4. Main switching regulator (V
SWmain
) (not system regulator).
8.6.5 Bridge + V
EXT
mode
In this configuration bridges 3 and 4 are not used as regulators and the regulator obtained
using the switching regulator controller (V
SWDRV
) is included in start-up.
When in this mode the power-up sequence is:
1. Main switching regulator (V
SWmain
).
2. Switching regulator controller regulator (V
SWDRV
).
3. Main linear regulator (V
LINmain
).