MMPF0100 datasheet(49/136 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

PF0100

Functional Block Requirements and Behaviors

Power Generation

SW1A/B/C (SINGLE PHASE) (CONTINUED)

Efficiency

•VIN = 3.6 V, fSW1ABC = 2.0 MHz, LSW1ABC = 1.0 μH

PFM, 0.9 V, 1.0 mA

PFM, 1.2 V, 50 mA

APS, PWM, 1.2 V, 850 mA

APS, PWM, 1.2 V, 1275 mA

APS, PWM, 1.2 V, 2125 mA

APS, PWM, 1.2 V, 4500 mA

ηSW1ABC

–

Output Ripple

ΔVSW1ABC

–10–

Line Regulation (APS, PWM)

VSW1ABCLIR

––

DC Load Regulation (APS, PWM)

VSW1ABCLOR

––

Transient Load Regulation

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

μs

Overshoot

Undershoot

VSW1ABCLOTR

–

Quiescent Current

PFM Mode

APS Mode

ISW1ABCQ

–

145

–

µA

Discharge Resistance

RSW1ABCDIS

–

600

–

SW1A/B (SINGLE/DUAL PHASE)

Operating Input Voltage

VINSW1A

VINSW1B

2.8

–

4.5

Nominal Output Voltage

VSW1AB

–

Table 40

–V

Output Voltage Accuracy

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

0.3 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

0.3 V < VSW1AB < 0.85 V

0.875 V < VSW1AB < 1.875 V

VSW1ABACC

-25

-3.0%

-65

-6.0%

–

3.0%

6.0%

Rated Output Load Current, (34)

2.8 V < VIN < 4.5 V, 0.3 V < VSW1AB < 1.875 V

ISW1AB

–

2500

Current Limiter Peak Current Detection (34)

• SW1A/B Single Phase (current through inductor)

SW1ABILIM = 0

SW1ABILIM = 1

• SW1A/B Dual Phase (current through inductor per phase)

SW1ABILIM = 0

SW1ABILIM = 1

ISW1ABLIM

4.5

3.3

2.2

1.6

6.5

4.9

3.2

2.4

8.5

6.4

4.3

3.2

Start-up Overshoot

ISW1AB = 0.0 mA

DVS clk = 25 mV/4

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

VSW1ABOSH

––

Table 53. SW1A/B/C Electrical Characteristics

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

Parameter

Symbol

Min

Typ

Max

Unit

MMPF0100 数据表(PDF) 49 Page - Freescale Semiconductor, Inc

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