MMPF0100 datasheet(77/136 Pages) FREESCALE

77 / 136 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SWITCH MODE SUPPLY SW4 (CONTINUED)

Switching Frequency

SW4FREQ[1:0] = 00

SW4FREQ[1:0] = 01

SW4FREQ[1:0] = 10

fSW4

–

1.0

2.0

4.0

–

MHz

Efficiency

•fSW4 = 2.0 MHz, LSW4 = 1.0 μH

PFM, 1.8 V, 1.0 mA

PFM, 1.8 V, 50 mA

APS, PWM 1.8 V, 200 mA

APS, PWM 1.8 V, 500 mA

APS, PWM 1.8 V, 1000 mA

PWM 0.75 V, 200 mA

PWM 0.75 V, 500 mA

PWM 0.75 V, 1000 mA

ηSW4

–

Output Ripple

ΔVSW4

–10–

Line Regulation (APS, PWM)

VSW4LIR

––

DC Load Regulation (APS, PWM)

VSW4LOR

––

Transient Load Regulation

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

μs

Overshoot

Undershoot

VSW4LOTR

–

Quiescent Current

PFM Mode

APS Mode

ISW4Q

–

145

–

µA

SW4 P-MOSFET RDSON

at VIN = VINSW4 = 3.3 V

RONSW4P

–

236

274

SW4 N-MOSFET RDSON

at VIN = VINSW4 = 3.3 V

RONSW4N

–

293

378

SW4 P-MOSFET Leakage Current

VIN = VINSW4 = 4.5 V

ISW4PQ

––

6.0

µA

SW4 N-MOSFET Leakage Current

VIN = VINSW4 = 4.5 V

ISW4NQ

––

2.0

µA

Discharge Resistance

RSW4DIS

–

600

–

Notes

45.

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

46.

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 86. SW4 Electrical Characteristics

All parameters are specified at TA = -40 to 85 °C, 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.

Parameter

Symbol

Min

Typ

Max

Unit

MMPF0100 데이터시트(PDF) 77 Page - Freescale Semiconductor, Inc

MMPF0100 데이터시트(HTML) 77 Page - Freescale Semiconductor, Inc

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