MMPF0100 datasheet(67/137 Pages) NXP

67 / 137 page

NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

6.4.4.4.9

SW3A/B external components

6.4.4.4.10 SW3A/B specifications

Table 77. SW3A/B external component requirements

Components

Description

Mode

SW3A/B single

phase

SW3A/B dual

phase

SW3A independent

SW3B independent

CINSW3A(54)

SW3A input capacitor

4.7

μF4.7 μF4.7 μF

CIN3AHF(54)

SW3A decoupling input capacitor

0.1

μF0.1 μF0.1 μF

CINSW3B(54)

SW3B input capacitor

4.7

μF4.7 μF4.7 μF

CIN3BHF(54)

SW3B decoupling input capacitor

0.1

μF0.1 μF0.1 μF

COSW3A(54)

SW3A output capacitor

3 x 22

μF

2 x 22

μF

2 x 22

μF

COSW3B(54)

SW3B output capacitor

–

2 x 22

μF

2 x 22

μF

LSW3A

SW3A inductor

1.0

μH1.0 μH1.0 μH

LSW3B

SW3B inductor

–

1.0

μH1.0 μH

Notes

54.

Use X5R or X7R capacitors.

Table 78. SW3A/B electrical characteristics

All parameters are specified at TMIN to TMAX (See Table 3), VIN = VINSW3x = 3.6 V, VSW3x = 1.5 V, ISW3x = 100 mA,

SW3x_PWRSTG[2:0] = [111], typical external component values, fSW3x = 2.0 MHz, single/dual phase and independent mode unless,

otherwise noted. Typical values are characterized at VIN = VINSW3x = 3.6 V, VSW3x = 1.5 V, ISW3x = 100 mA, SW3x_PWRSTG[2:0] = [111],

and 25 °C, unless otherwise noted.

Symbol

arameter

Min.

Typ.

Max.

Unit

Notes

Switch mode supply SW3a/B

VINSW3x

Operating input voltage

2.8

–

4.5

(55)

VSW3x

Nominal output voltage

Table 65

-V

VSW3xACC

Output voltage accuracy

• PWM, APS 2.8 V < VIN < 4.5 V, 0 < ISW3x < ISW3xMAX

• 0.625 V < VSW3x < 0.85 V

• 0.875 V < VSW3x < 1.975 V

• 2.0 V < VSW3x < 3.3 V

•

• PFM , steady state (2.8 V < VIN < 4.5 V, 0 < ISW3x < 50 mA)

• 0.625 V < VSW3x < 0.675 V

• 0.7 V < VSW3x < 0.85 V

• 0.875 V < VSW3x < 1.975 V

• 2.0 V < VSW3x < 3.3 V

-25

-3.0%

-6.0%

-65

-45

-3.0%

–

3.0%

6.0%

3.0%

ISW3x

Rated output load current

• 2.8 V < VIN < 4.5 V, 0.625 V < VSW3x < 3.3 V

• PWM, APS mode single/dual phase

• PWM, APS mode independent (per phase)

–

2500

1250

(56)

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