MMPF0100Z datasheet(53/128 Pages) NXP

53 / 128 page

NXP Semiconductors

PF0100Z

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

6.4.4.4.2

SW2 external components

Table 58. Register SW2OFF - ADDR 0x37

Name

Bit #

R/W

Default

Description

SW2OFF

5:0

R/W

0x00

Sets the SW2 output voltage during sleep mode. See

Table 54 for all possible configurations.

SW2OFF

0x00

Sets the operating output voltage range for SW2 on

sleep mode. This bit inherits the value configured on

bit SW2[6] during OTP or TBB configuration. See

Table 54 for all possible configurations.

UNUSED

–

0x00

unused

Table 59. Register SW2MODE - ADDR 0x38

Name

Bit #

R/W

Default

Description

SW2MODE

3:0

R/W

0x80

Sets the SW2 switching operation mode.

See Table 29 for all possible configurations.

UNUSED

–

0x00

unused

SW2OMODE

R/W

0x00

Set status of SW2 when in sleep mode

0 = OFF

1 = PFM

UNUSED

7:6

–

0x00

unused

Table 60. Register SW2CONF - ADDR 0x39

Name

Bit #

R/W

Default

Description

SW2ILIM

R/W

0x00

SW2 current limit level selection (45)

0 = High level current limit

1 = Low level current limit

UNUSED

R/W

0x00

unused

SW2FREQ

3:2

R/W

0x00

SW2 switching frequency selector.

See Table 37.

SW2PHASE

5:4

R/W

0x00

SW2 phase clock selection.

See Table 35.

SW2DVSSPEED

7:6

R/W

0x00

SW2 DVS speed selection.

See Table 34.

Notes

45.

SW2ILIM = 0 must be used in NP/F9/FA versions if 2.5 A output load current is desired

Table 61. SW2 external component recommendations

Components

Description

Values

CINSW2(46)

SW2 input capacitor

4.7

F

CIN2HF(46)

SW2 decoupling input capacitor

0.1

F

COSW2(46)

SW2 output capacitor

2 x 22

F

LSW2

SW2 inductor

1.0

H

DCR = 50 m



ISAT = 2.65 A

Notes

46.

Use X5R or X7R capacitors.

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