MMPF0100 datasheet(69/136 Pages) FREESCALE

69 / 136 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SW3A/B External Components

SW3A/B Specifications

Table 76. SW3A/B External Component Requirements

Mode

Components

Description

SW3A/B Single

Phase

SW3A/B Dual

Phase

SW3A Independent

SW3B Independent

CINSW3A(40)

SW3A Input capacitor

4.7

μF4.7 μF4.7 μF

CIN3AHF(40)

SW3A Decoupling input capacitor

0.1

μF0.1 μF0.1 μF

CINSW3B(40)

SW3B Input capacitor

4.7

μF4.7 μF4.7 μF

CIN3BHF(40)

SW3B Decoupling input capacitor

0.1

μF0.1 μF0.1 μF

COSW3A(40)

SW3A Output capacitor

4 x 22

μF

2 x 22

μF

2 x 22

μF

COSW3B(40)

SW3B Output capacitor

–

2 x 22

μF

2 x 22

μF

LSW3A

SW3A Inductor

1.0

μH

DCR = 50 m

ISAT = 3.9 A

1.0

μH

DCR = 60 m

ISAT = 3.0 A

1.0

μH

DCR = 60 m

ISAT = 3.0 A

LSW3B

SW3B Inductor

–

1.0

μH

DCR = 60 m

ISAT = 3.0 A

1.0

μH

DCR = 60 m

ISAT = 3.0 A

Notes

40.

Use X5R or X7R capacitors.

Table 77. SW3A/B Electrical Characteristics

All parameters are specified at TA = -40 to 85 °C, 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.

arameter

Symbol

Min

Typ

Max

Unit

SWITCH MODE SUPPLY SW3A/B

Operating Input Voltage(41)

VINSW3x

2.8

–

4.5

Nominal Output Voltage

VSW3x

Table 64

-V

Output Voltage Accuracy

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

0.4 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)

0.4 V < VSW3x < 0.85 V

0.875 V < VSW3x < 1.975 V

2.0 V < VSW3x < 3.3 V

VSW3xACC

-25

-3.0%

-6.0%

-65

-6.0%

–

3.0%

6.0%

Rated Output Load Current (42)

• 2.8 V < VIN < 4.5 V, 0.4 V < VSW3x < 3.3 V

PWM, APS mode single/dual phase

PWM, APS mode independent (per phase)

ISW3x

–

2500

1250

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