MMPF0100 datasheet(59/136 Pages) FREESCALE

59 / 136 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SWITCH MODE SUPPLY SW2 (CONTINUED)

Efficiency

•VIN = 3.6 V, fSW2 = 2.0 MHz, LSW2 = 1.0 μH

PFM, 3.15 V, 1.0 mA

PFM, 3.15 V, 50 mA

APS, PWM, 3.15 V, 400 mA

APS, PWM, 3.15 V, 600 mA

APS, PWM, 3.15 V, 1000 mA

APS, PWM, 3.15 V, 2000 mA

ηSW2

–

Output Ripple

ΔVSW2

–10–

Line Regulation (APS, PWM)

VSW2LIR

––

DC Load Regulation (APS, PWM)

VSW2LOR

––

Transient Load Regulation

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

μs

Overshoot

Undershoot

VSW2LOTR

–

Quiescent Current

PFM Mode

APS Mode (Low output voltage settings)

APS Mode (High output voltage settings)

ISW2Q

–

145

305

–

µA

SW2 P-MOSFET RDSON

at VIN = VINSW2 = 3.3 V

RONSW2P

–

190

209

SW2 N-MOSFET RDSON

at VIN = VINSW2 = 3.3 V

RONSW2N

–

212

255

SW2 P-MOSFET Leakage Current

VIN = VINSW2 = 4.5 V

ISW2PQ

––

µA

SW2 N-MOSFET Leakage Current

VIN = VINSW2 = 4.5 V

ISW2NQ

––

4.0

µA

Discharge Resistance

RSW2DIS

–

600

–

Notes

37.

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

38.

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

(VINSW2 - VSW2) = ISW2* (DCR of Inductor +RONSW2P + PCB trace resistance).

Table 62. 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

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