MMPF0100 datasheet(68/136 Pages) NXP

68 / 136 page

NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

Switch mode supply SW3a/B (continued)

ISW3xLIM

Current limiter peak current detection

• Single phase (current through inductor)

• SW3xILIM = 0

• SW3xILIM = 1

• Independent mode or dual phase (current through inductor per

phase)

• SW3xILIM = 0

• SW3xILIM = 1

3.5

2.7

1.8

1.3

5.0

3.8

2.5

1.9

6.5

4.9

3.3

2.5

VSW3xOSH

Start-up overshoot

• ISW3x = 0.0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW3x = 4.5 V

––

tONSW3x

Turn-on time

• Enable to 90% of end value

• ISW3x = 0 mA

• DVS clk = 25 mV/4

μs, VIN = VINSW3x = 4.5 V

–

500

µs

fSW3x

Switching frequency

• SW3xFREQ[1:0] = 00

• SW3xFREQ[1:0] = 01

• SW3xFREQ[1:0] = 10

–

1.0

2.0

4.0

–

MHz

ηSW3AB

Efficiency (single phase)

•fSW3 = 2.0 MHz, LSW3x 1.0 μH

• PFM, 1.5 V, 1.0 mA

• PFM, 1.5 V, 50 mA

• APS, PWM 1.5 V, 500 mA

• APS, PWM 1.5 V, 750 mA

• APS, PWM 1.5 V, 1250 mA

• APS, PWM 1.5 V, 2500 mA

–

ΔVSW3x

Output ripple

–

VSW3xLIR

Line regulation (APS, PWM)

–

VSW3xLOR

DC load regulation (APS, PWM)

–

VSW3xLOTR

Transient load regulation

• Transient load = 0.0 mA to ISW3x/2, di/dt = 100 mA/μs

• Overshoot

• Undershoot

–

ISW3xQ

Quiescent current

• PFM mode (single/dual phase)

• APS mode (single/dual phase)

• PFM mode (independent mode)

• APS mode (SW3A independent mode)

• APS mode (SW3B independent mode)

–

300

250

150

–

µA

RONSW3AP

SW3A P-MOSFET RDS(on)

• at VIN = VINSW3A = 3.3 V

–

215

245

RONSW3AN

SW3A N-MOSFET RDS(on)

• at VIN = VINSW3A = 3.3 V

–

258

326

Table 78. SW3A/B electrical characteristics (continued)

All parameters are specified at TMIN to TMAX (See Table 3), 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.

Symbol

arameter

Min.

Typ.

Max.

Unit

Notes

MMPF0100 Datasheet(PDF) 68 Page - NXP Semiconductors

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