MMPF0100 datasheet(76/136 Pages) NXP

76 / 136 page

NXP Semiconductors

PF0100

FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS

Figure 27. SW4 efficiency waveforms: VIN = 4.2 V; VOUT = 1.8 V; consumer version

Switch mode supply SW4 (continued)

VSW4LIR

Line regulation (APS, PWM)

–

VSW4LOR

DC load regulation (APS, PWM)

–

VSW4LOTR

Transient load regulation

• Transient load = 0.0 mA to 500 mA, di/dt = 100 mA/

μs

• Overshoot

• Undershoot

–

ISW4Q

Quiescent current

• PFM mode

• APS mode

–

145

–

µA

RONSW4P

SW4 P-MOSFET RDS(on)

• at VIN = VINSW4 = 3.3 V

–

236

274

RONSW4N

SW4 N-MOSFET RDS(on)

• at VIN = VINSW4 = 3.3 V

–

293

378

ISW4PQ

SW4 P-MOSFET leakage current

• VIN = VINSW4 = 4.5 V

––

6.0

µA

ISW4NQ

SW4 N-MOSFET leakage current

• VIN = VINSW4 = 4.5 V

––

2.0

µA

RSW4DIS

Discharge resistance

–

600

–

Notes

59.

When output is set to > 2.6 V the output follows the input down when VIN gets near 2.8 V.

60.

The higher output voltages available depend on the voltage drop in the conduction path as given by the following equation:

(VINSW4 - VSW4) = ISW4* (DCR of inductor +RONSW4P + PCB trace resistance).

Table 87. SW4 electrical characteristics (continued)

All

parameters

are

specified

TMIN to TMAX (See Table 3), 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.

Symbol

Parameter

Min.

Typ.

Max.

Unit

Notes

100

1000

10000

)

Load Current (mA)

APS

PWM

0.1

100

1000

)

Load Current (mA)

PFM

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