KTB8331

December 2021

– Revision 04b

Page 17 of 25

Kinetic Confidential

I2C Registers

I2C Slave Address

Options10

7-Bit Address

Write Address

Read Address

Bits

7 6 5 4 3 2 1 0

KTB8331A/B/C/K/L/M

0x60

0xC0

0xC1

1 1 0 0 0 0 0 R/

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KTB8331D/F/G/H

0x50

0xA0

0xA1

1 0 1 0 0 0 0 R/

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KTB8331E

0x57

0xAE

0xAF

1 0 1 0 1 1 1 R/

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KTB8331J

0x51

0xA2

0xA3

1 0 1 0 0 0 1 R/

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I2C Register Map

Hex

Address

Name

Type

Access

Default

Reset

B7

B6

B5

B4

B3

B2

B1

B0

0x00

VSEL0

Config

R/W

1xxx xxxx

EN0

VOUT_VSEL0[6:0]

0x01

VSEL1

Config

R/W

1xxx xxxx

EN1

VOUT_VSEL1[6:0]

0x02

CONTROL

Config

R/W

1000 x0xx

DIS

SLEW[2:0]

RANGE RESET

MODE[1:0]

0x03

ID1

Data

R

1010 0010

VENDOR[2:0]

DIE_ID[4:0]

0x04

ID2

Status

R

0000 xxxx

RSVD

RSVD

RSVD

RSVD

DIE_REV[3:0]

0x05

MONITOR

Status

R

0000 0000

POK

_STAT

UVLO

_STAT

OVP

_STAT

POS

_STAT

NEG

_STAT

RESET

_STAT

OT

_STAT

EN

_STAT

0x06

INTMASK

Mask

R/W

1111 1111

RSVD

RSVD

RSVD

POS

_INTM

NEG

_INTM

RESET

_INTM

OT

_INTM

nEN

_INTM

0x07

INTLATCH

Intrrpt

R/C

0000 0000

RSVD

RSVD

RSVD

POS

_INT

NEG

_INT

RESET

_INT

OT

_INT

nEN

_INT

Register contents are reset in hardware to their default values by VIN power-on reset. Additionally, most registers

can be reset in software by writing 1 to the RESET bit (B2) in the CONTROL register (0x02). Default Reset bits

marked with lower-

case “x” in the register map and register details tables depend upon the ordered part# suffix

and die revision; please see the Ordering Information section. Upper-

case “X” used elsewhere in the tables

designates “don’t care”.

VSEL0 Configuration Register

Register Address 0x00

Bit

Name

Access

Default

Reset

Description

7

EN0

R/W

1

Software Buck Enable. When EN pin is low, the regulator is off.

When EN pin is high and VSEL pin is low, the EN0 bit takes

precedent.

EN pin

VSEL pin

EN0 bit

Regulator

0

X

X

off

1

0

0

off

1

0

1

on

6:0

VOUT_VSEL0[6:0]

R/W

xxx xxxx

Sets the nominal VOUT regulation voltage when VSEL pin is low.

When RANGE bit is low, the VOUT range is from 0.600 to 1.39375V.

When RANGE bit is high, the VOUT range is from 1.440 to 3.345V.

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where G = 1.0 when RANGE bit is low, and G = 2.4 when RANGE

bit is high.

10 For Alternate 1/2/3 Slave Addresses, please contact a Kinetic Technologies representative.