MP8861 – 2.85V - 18V, 6A, SYNCHRONOUS, STEP-DOWN CONVERTER

MP8861 Rev. 1.1

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28

5/28/2020

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6) Reg05 ID1

Register 05 is the IC information-indicating

register. The highest four bits, Vendor ID D[7:4],

are set to 1000 internally.

The lowest four bits, IC Revision ID D[3:0],

indicates IC revision information.

NAME

BITS

DESCRIPTION

Vendor ID

D[7:4]

1000.

IC Revision ID

D[3:0]

IC revision (0111).

7) Reg06 Status

Register 06 is a fault condition-indicating

register. The highest four bits, D[7:4], are

reserved for future use.

The bit OC is the output over-current indication.

When the bit is set to 1, the IC is in hiccup

mode or OC latch-off.

The bit OTEW is the die temperature early

warning indication. When the bit is set to 1, the

IC die temperature is higher than 120°C.

The bit PG is output power good indication.

When the bit is set to 1, the output power is

normal.

NAME

BITS

DESCRIPTION

Reserved

D[7:4]

Reserved for future use.

OC

D[3]

Output over-current indication. When this bit is high, the IC is in hiccup mode or trips

OC latch off.

OTEW

D[2]

Die temperature early warning bit. When the bit is high, the die temperature is higher

than 120˚C.

OT

D[1]

Over temperature indication. When the bit is high the IC is in thermal shutdown.

PG

D[0]

Output power good indication. When the bit is high the VOUT power is normal. This

means VOUT is higher than 95% and lower than 115% of the designed regulation

voltage. PG compares FB/VOUT with REF.