KTB8331

December 2021

– Revision 04b

Page 19 of 25

Kinetic Confidential

Bit

Name

Access

Default

Reset

Description

3

RANGE

R/W

x

Sets the VOUT range. Also influences the DVS ramp-up/down slew

rate (see SLEW[2:0] above).

RANGE

bit

G

VOUT(min)

VOUT(max)

VOUT(step)

0

1.0

0.600V

1.39375V

6.25mV

1

2.4

1.440V

3.345V

15mV

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

bit is high.

Note: There is no slew-rate control when toggling the RANGE bit;

therefore, it is recommended to disable VOUT before changing the

RANGE setting.

2

RESET

R/W

0

Software Reset to default register settings. Writing 1 resets nearly

all the registers. The RESET bit always reads back as 0. Before

self-clearing, the software reset event is latched into the

RESET_STAT bit (B2) in the MONITOR register (0x05) and also

into the RESET_INT bit (B2) in the INTLATCH register (0x07) if

unmasked.

Items that are NOT reset by the RESET bit are:

1. RESET_STAT bit in the MONITOR register

2. RESET_INT bit in the INTLATCH register

1:0

MODE[1:0]

R/W

xx

Auto-Skip vs. Forced-PWM mode control. Works in conjunction

with the VSEL pin. Auto-Skip automatically uses PWM in

continuous conduction at heavy loads and PFM pulse-skipping in

discontinuous conduction at light loads.

VSEL pin

MODE bits

Operating Mode

0

X0

Auto-Skip

0

X1

Forced-PWM

1

0X

Auto-Skip

1

1X

Forced-PWM

ID1 Data Register

Register Address 0x03

Bit

Name

Access

Default

Reset

Description

7:5

VENDOR[2:0]

R

101

Vendor Identification

101 = Kinetic Technologies

4:0

DIE_ID[4:0]

R

0 0010

Die Type Identification

0 0010 = KTB8331

ID2 Status Register

Register Address 0x04

Bit

Name

Access

Default

Reset

Description

7

RSVD

R

0

Reserved. Always reads back as 0.

6

RSVD

R

0

Reserved. Always reads back as 0.

5

RSVD

R

0

Reserved. Always reads back as 0.

4

RSVD

R

0

Reserved. Always reads back as 0.

3:0

DIE_REV[3:0]

R

xxxx

Die Revision Identification