MMPF0100NPEP datasheet(58/137 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SW2 External Components

SW2 Specifications

Table 60. SW2 External Component Recommendations

Components

Description

Values

CINSW2(42)

SW2 Input capacitor

4.7

F

CIN2HF(42)

SW2 Decoupling input capacitor

0.1

F

COSW2(42)

SW2 Output capacitor

2 x 22

F

LSW2

SW2 Inductor

1.0

H

DCR = 50 m



ISAT = 2.65 A

Notes

42.

Use X5R or X7R capacitors.

Table 61. SW2 Electrical Characteristics

All parameters are specified at TA = -40 to 85 °C, VIN = VINSW2 = 3.6 V, VSW2 = 3.15 V, ISW2 = 100 mA,

SW2_PWRSTG[2:0] = [111], typical external component values, fSW2 = 2.0 MHz, unless otherwise noted. Typical values are

characterized at VIN = VINSW2 = 3.6 V, VSW2 = 3.15 V, ISW2 = 100 mA, SW2_PWRSTG[2:0] = [111], and 25 °C, unless otherwise

noted.

Parameter

Symbol

Min

Typ

Max

Unit

SWITCH MODE SUPPLY SW2

Operating Input Voltage(43)

VINSW2

2.8

–

4.5

Nominal Output Voltage

VSW2

–

Table 53

–V

Output Voltage Accuracy

• PWM, APS, 2.8 V < VIN < 4.5 V, 0 < ISW2 < 2.0 A

0.4 V < VSW2 < 0.85 V

0.875 V < VSW2 < 1.975 V

2.0 V < VSW2 < 3.3 V

• PFM, 2.8 V < VIN < 4.5 V, 0 < ISW2 50 mA

0.4 V < VSW2 < 0.85 V

0.875 V < VSW2 < 1.975 V

2.0 V < VSW2 < 3.3 V

VSW2ACC

-25

-3.0%

-6.0%

-65

-6.0%

–

3.0%

6.0%

Rated Output Load Current (44)

2.8 V < VIN < 4.5 V, 0.4 V < VSW2 < 3.3 V

ISW2

–

2000

Current Limiter Peak Current Detection

• Current through Inductor

SW2ILIM = 0

SW2ILIM = 1

ISW2LIM

2.8

2.1

4.0

3.0

5.2

3.9

Start-up Overshoot

ISW2 = 0.0 mA

DVS clk = 25 mV/4

s, VIN = VINSW2 = 4.5 V

VSW2OSH

––

Turn-on Time

Enable to 90% of end value

ISW2 = 0.0 mA

DVS clk = 50 mV/8

s, VIN = VINSW2 = 4.5 V

tONSW2

–

550

µs

Switching Frequency

SW2FREQ[1:0] = 00

SW2FREQ[1:0] = 01

SW2FREQ[1:0] = 10

fSW2

–

1.0

2.0

4.0

–

MHz

MMPF0100NPEP Datasheet(PDF) 58 Page - Freescale Semiconductor, Inc

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