MMPF0100NPEP datasheet(76/137 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SW4 External Components

SW4 Specifications

Table 84. SW4 External Component Requirements

Components

Description

Values

CINSW4(50)

SW4 Input capacitor

4.7

F

CIN4HF(50)

SW4 Decoupling input capacitor

0.1

F

COSW4(50)

SW4 Output capacitor

2 x 22

F

LSW4

SW4 Inductor

1.0

H

DCR = 60 m



ISAT = 3.0 A

Notes

50.

Use X5R or X7R capacitors.

Table 85. SW4 Electrical Characteristics

All parameters are specified at TA = -40 to 85 °C, VIN = VINSW4 = 3.6 V, VSW4 = 1.8 V, ISW4 = 100 mA,

SW4_PWRSTG[2:0] = [101], typical external component values, fSW4 = 2.0 MHz, single/dual phase and independent mode

unless, otherwise noted. Typical values are characterized at VIN = VINSW4 = 3.6 V, VSW4 = 1.8 V, ISW4 = 100 mA,

SW4_PWRSTG[2:0] = [101], and 25 °C, unless otherwise noted.

Parameter

Symbol

Min

Typ

Max

Unit

SWITCH MODE SUPPLY SW4

Operating Input Voltage (51)

VINSW4

2.8

–

4.5

Nominal Output Voltage

Normal operation

VTT Mode

VSW4

–

Table 77

VSW3AFB/2

–

Output Voltage Accuracy

• PWM, APS, 2.8 V < VIN < 4.5 V, 0 < ISW4 < 1.0 A

0.4 V < VSW4 < 0.85 V

0.875 V < VSW4 < 1.975 V

2.0 V < VSW4 < 3.3 V

• PFM, steady state, 2.8 V < VIN < 4.5 V, 0 < ISW4 < 50 mA

0.4 V < VSW4 < 0.85 V

0.875 V < VSW4 < 1.975 V

2.0 V < VSW4 < 3.3 V

• VTT Mode , 2.8 V < VIN < 4.5 V, 0 < ISW4 < 1.0 A

VSW4ACC

-25

-3.0%

-6.0%

-65

-6.0%

-40

–

3.0%

6.0%

Rated Output Load Current (52)

2.8 V < VIN < 4.5 V, 0.4 V < VSW4 < 3.3 V

ISW4

–

1000

Current Limiter Peak Current Detection

Current through inductor

SW4ILIM = 0

SW4ILIM = 1

ISW4LIM

1.4

1.0

2.0

1.5

3.0

2.4

Start-up Overshoot

ISW4 = 0.0 mA

DVS clk = 25 mV/4

s, VIN = VINSW4 = 4.5 V

VSW4OSH

––

Turn-on Time

Enable to 90% of end value

ISW4 = 0.0 mA

DVS clk = 25 mV/4

s, VIN = VINSW4 = 4.5 V

tONSW4

–

500

µs

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