MMPF0100 datasheet(47/136 Pages) NXP

47 / 136 page

NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

SW1A/B/C (single phase) (continued)

VSW1ABCLOTR

Transient load regulation

• Transient load = 0 to 2.25 A, di/dt = 100 mA/

μs

• Overshoot

• Undershoot

–

ISW1ABCQ

Quiescent current

• PFM Mode

• APS Mode

–

145

–

µA

RSW1ABCDIS

Discharge resistance

–

600

–

SW1A/B (single/dual phase)

VINSW1A

VINSW1B

Operating input voltage

2.8

–

4.5

VSW1AB

Nominal output voltage

–

Table 41

–V

VSW1ABACC

Output voltage accuracy

• PWM, APS, 2.8 V < VIN < 4.5 V, 0 < ISW1AB < 2.5 A

• 0.625 V

≤ VSW1AB ≤ 1.450 V

• 1.475 V

≤ VSW1AB ≤ 1.875 V

• PFM, steady state, 2.8 V < VIN < 4.5 V, 0 < ISW1AB < 150 mA

• 0.625 V < VSW1AB < 0.675 V

• 0.7 V < VSW1AB < 0.85 V

• 0.875 V < VSW1AB < 1.875 V

-25

-3.0%

-65

-45

-3.0%

–

3.0%

ISW1AB

Rated output load current,

• 2.8 V < VIN < 4.5 V, 0.625 V < VSW1AB < 1.875 V

–

2500

(46)

ISW1ABLIM

Current limiter peak current detection

• SW1A/B single phase (current through inductor)

• SW1ABILIM = 0

• SW1ABILIM = 1

•

• SW1A/B dual phase (current through inductor per phase)

• SW1ABILIM = 0

• SW1ABILIM = 1

4.5

3.3

2.2

1.6

6.5

4.9

3.2

2.4

8.5

6.4

4.3

3.2

(46)

VSW1ABOSH

Start-up overshoot

• ISW1AB = 0.0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW1x = 4.5 V, VSW1AB = 1.875 V

––

tONSW1AB

Turn-on time

• Enable to 90% of end value

• ISW1AB = 0.0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW1x = 4.5 V, VSW1AB = 1.875 V

–

500

µs

fSW1AB

Switching frequency

• SW1ABFREQ[1:0] = 00

• SW1ABFREQ[1:0] = 01

• SW1ABFREQ[1:0] = 10

–

1.0

2.0

4.0

–

MHz

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

MMPF0100 Datasheet(PDF) 47 Page - NXP Semiconductors

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