LP8733 datasheet(46/82 Pages) TI1

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LP8733

SNVSBK2 – SEPTEMBER 2019

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7.6.1.6 BUCK1_CTRL_2

BUCK1_CTRL_2 is shown in Table 13, Address: 0x05

Figure 34. BUCK1_CTRL_2 Register

Reserved - do not use

BUCK1_ILIM[2:0]

BUCK1_SLEW_RATE[2:0]

Table 13. BUCK1_CTRL_2 Register Field Descriptions

Bits

Field

Type

Default

Description

7:6

Reserved - do not

use

R/W

5:3

BUCK1_ILIM[2:0]

R/W

Sets the switch current limit of the Buck1. Can be programmed at any time during

operation:

0x0 - 1.5 A

0x1 - 2.0 A

0x2 - 2.5 A

0x3 - 3.0 A

0x4 - 3.5 A

0x5 - 4.0 A

0x6 - Reserved - do not use.

0x7 - Reserved - do not use.

2:0

BUCK1_SLEW_RA

TE[2:0]

R/W

Sets the output voltage slew rate for the Buck1 regulator (rising and falling edges):

0x0 - Reserved - do not use.

0x1 - Reserved - do not use.

0x2 - 10 mV/µs

0x3 - 7.5 mV/µs

0x4 - 3.8 mV/µs

0x5 - 1.9 mV/µs

0x6 - 0.94 mV/µs

0x7 - 0.47 mV/µs

7.6.1.7 BUCK0_VOUT

BUCK0_VOUT is shown in Table 14, Address: 0x06

Figure 35. BUCK0_VOUT Register

BUCK0_VSET[7:0]

Table 14. BUCK0_VOUT Register Field Descriptions

Bits

Field

Type

Default

Description

7:0

BUCK0_VSET[7:0]

R/W

Sets the output voltage of the Buck0 regulator:

Reserved; do not use.

0x00 ... 0x13

0.7 V - 0.73 V, 10 mV steps

0x14 - 0.7V

...

0x17 - 0.73 V

0.73 V - 1.4 V, 5 mV steps

0x18 - 0.735 V

...

0x9D - 1.4 V

1.4 V - 3.36 V, 20 mV steps

0x9E - 1.42 V

...

0xFF - 3.36 V

7.6.1.8 BUCK1_VOUT

BUCK1_VOUT is shown in Table 15, Address: 0x07

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