MMPF0100Z datasheet(44/128 Pages) NXP

44 / 128 page

NXP Semiconductors

PF0100Z

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

6.4.4.3.5

SW1A/B/C external components

Table 51. Register SW1CCONF - ADDR 0x32

Name

Bit #

R/W

Default

Description

SW1CILIM

R/W

0x00

SW1C current limit level selection

0 = High level current limit

1 = Low level current limit

UNUSED

R/W

0x00

Unused

SW1CFREQ

3:2

R/W

0x00

SW1C switching frequency selector.

See Table 37.

SW1CPHASE

5:4

R/W

0x00

SW1C phase clock selection.

See Table 35.

SW1CDVSSPEED

7:6

R/W

0x00

SW1C DVS speed selection.

See Table 33.

Table 52. SW1A/B/C external component recommendations

Components

Description

Mode

A/B/C single

phase

A/B single - C

independent mode

A/B dual - C

independent mode

CINSW1A(41)

SW1A input capacitor

4.7

F4.7 F4.7 F

CIN1AHF(41)

SW1A decoupling input capacitor

0.1

F0.1 F0.1 F

CINSW1B(41)

SW1B input capacitor

4.7

F4.7 F4.7 F

CIN1BHF(41)

SW1B decoupling input capacitor

0.1

F0.1 F0.1 F

CINSW1C(41)

SW1C input capacitor

4.7

F4.7 F4.7 F

CIN1CHF(41)

SW1C decoupling input capacitor

0.1

F0.1 F0.1 F

COSW1AB(41)

SW1A/B output capacitor

6 x 22

F4 x 22 F4 x 22 F

COSW1C(41)

SW1C output capacitor

–

2 x 22

F2 x 22 F

LSW1A

SW1A inductor

1.0

H

DCR = 12 m



ISAT = 6.0 A

1.0

H

DCR = 12 m



ISAT = 4.5 A

1.0

H

DCR = 60 m



ISAT = 2.4 A

LSW1B

SW1B inductor

–

1.0

H

DCR = 60 m



ISAT = 2.4 A

LSW1C

SW1C inductor

–

1.0

H

DCR = 60 m



ISAT = 2.4 A

1.0

H

DCR = 60 m



ISAT = 2.4 A

Notes

41.

Use X5R or X7R capacitors.

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