MMPF0200Z datasheet(64/118 Pages) NXP

64 / 118 page

Analog Integrated Circuit Device Data



Freescale Semiconductor

PF0200Z

Functional Block Requirements and Behaviors

Power Generation

6.4.5.2

SWBST External Components

6.4.5.3

SWBST Specifications

UNUSED

–

0x00

UNUSED

Notes

47.

In Auto mode, the controller automatically switches between PFM and APS modes depending on the load current.

The SWBST regulator starts up by default in the Auto mode, if SWBST is part of the startup sequence.

Table 73. SWBST External Component Requirements

Components

Description

Values

CINBST(48)

SWBST input capacitor

F

CINBSTHF(48)

SWBST decoupling input capacitor

0.1

F

COBST(48)

SWBST output capacitor

2 x 22

F

LSBST

SWBST inductor

2.2

H

DBST

SWBST boost diode

1.0 A, 20 V Schottky

Notes

48.

Use X5R or X7R capacitors.

Table 74. SWBST Electrical Specifications

All parameters are specified at TA = -40 to 85 °C, VIN = VINSWBST = 3.6 V, VSWBST = 5.0 V, ISWBST = 100 mA, typical external

component values, fSWBST = 2.0 MHz, otherwise noted. Typical values are characterized at VIN = VINSWBST = 3.6 V,

VSWBST = 5.0 V, ISWBST = 100 mA, and 25 °C, unless otherwise noted.

Parameters

Symbol

Min

Typ

Max

Units

SWITCH MODE SUPPLY SWBST

Input Voltage Range

VINSWBST

2.8

–

4.5

Nominal Output Voltage

VSWBST

–

Table 72

–V

Output Voltage Accuracy

2.8 V

 VIN  4.5 V

0 < ISWBST < ISWBSTMAX

VSWBSTACC

-4.0

–

3.0

Output Ripple

2.8 V

 VIN  4.5 V

0 < ISWBST < ISWBSTMAX, excluding reverse recovery of

Schottky diode

VSWBST

–

120

Vp-p

DC Load Regulation

0 < ISWBST < ISWBSTMAX

VSWBSTLOR

–0.5

–

mV/

DC Line Regulation

2.8 V

 VIN 4.5 V, ISWBST = ISWBSTMAX

VSWBSTLIR

–

Continuous Load Current

2.8 V

 VIN  3.0 V

3.0 V

 VIN  4.5 V

ISWBST

–

500

600

Quiescent Current

AUTO

ISWBSTQ

–

222

289

A

MOSFET on Resistance

RDSONBST

–

206

306



Peak Current Limit (49)

ISWBSTLIM

1400

2200

3200

Table 72. Register SWBSTCTL - ADDR 0x66 (continued)

Name

Bit #

R/W

Default

Description

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