MMPF0100 datasheet(49/137 Pages) NXP

49 / 137 page

NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

SW1C (independent)

VINSW1C

Operating input voltage

2.8

–

4.5

VSW1C

Nominal output voltage

–

Table 41

–V

VSW1CACC

Output voltage accuracy

• PWM, APS, 2.8 V < VIN < 4.5 V, 0 < ISW1C < 2.0 A

• 0.625 V

≤ VSW1C ≤ 1.450 V

• 1.475 V

≤ VSW1C ≤ 1.875 V

• PFM, steady state 2.8 V < VIN < 4.5 V, 0 < ISW1C < 50 mA

• 0.625 V < VSW1C < 0.675 V

• 0.7 V < VSW1C < 0.85 V

• 0.875 V < VSW1C < 1.875 V

-25

-3.0%

-65

-45

-3.0%

–

3.0%

ISW1C

Rated output load current

• 2.8 V < VIN < 4.5 V, 0.625 V < VSW1C < 1.875 V

–

2000

ISW1CLIM

Current limiter peak current detection

• Current through inductor

• SW1CILIM = 0

• SW1CILIM = 1

2.6

1.95

4.0

3.0

5.2

3.9

(45)

—

VSW1COSH

Start-up overshoot

• ISW1C = 0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW1C = 4.5 V, VSW1C = 1.875 V

––

tONSW1C

Turn-on time

• Enable to 90% of end value

• ISW1C = 0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW1C = 4.5 V, VSW1C = 1.875 V

–

500

µs

fSW1C

Switching frequency

• SW1CFREQ[1:0] = 00

• SW1CFREQ[1:0] = 01

• SW1CFREQ[1:0] = 10

–

1.0

2.0

4.0

–

MHz

ηSW1C

Efficiency

•VIN = 3.6 V, fSW1C = 2.0 MHz, LSW1C = 1.0 μH

• PFM, 0.9 V, 1.0 mA

• PFM, 1.2 V, 50 mA

• APS, PWM, 1.2 V, 400 mA

• APS, PWM, 1.2 V, 600 mA

• APS, PWM, 1.2 V, 1000 mA

• APS, PWM, 1.2 V, 2000 mA

–

ΔVSW1C

Output ripple

–

VSW1CLIR

Line regulation (APS, PWM)

–

VSW1CLOR

DC load regulation (APS, PWM)

–

VSW1CLOTR

Transient load regulation

• Transient load = 0.0 mA to 1.0 A, di/dt = 100 mA/

μs

• Overshoot

• Undershoot

–

ISW1CQ

Quiescent current

• PFM mode

• APS mode

–

145

–

µA

Table 54. SW1A/B/C electrical characteristics (continued)

All parameters are specified at TMIN to TMAX (See Table 3), VIN = VINSW1x = 3.6 V, VSW1x = 1.2 V, ISW1x = 100 mA,

SW1x_PWRSTG[2:0] = [111], typical external component values, fSW1x = 2.0 MHz, unless otherwise noted. Typical values are

characterized at VIN = VINSW1x = 3.6 V, VSW1x = 1.2 V, ISW1x = 100 mA, SW1x_PWRSTG[2:0] = [111], and 25 °C, unless otherwise noted.

Symbol

Parameter

Min.

Typ.

Max.

Unit

Notes

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