NXP Semiconductors
PF4210
14-channel power management integrated circuit (PMIC) for audio/video applications
Name
Bit number
R/W
R/W
R/W
R/W
R/W
Default Description
UNUSED
1
0x00
0x00
0x00
0x00
unused
SW2FREQ
SW2PHASE
SW2DVSSPEED
3:2
5:4
7:6
SW2 switching frequency selector. See Table 36.
SW2 phase clock selection. See Table 34.
SW2 DVS speed selection. See Table 33.
[1] SW2ILIM = 0 must be used if 2.5 A output load current is desired
10.4.4.4.2 SW2 external components
Table 60.ꢀSW2 external component recommendations
Components
Description
Values
4.7 µF
[1]
CINSW2
SW2 input capacitor
SW2 decoupling input capacitor
SW2 output capacitor
SW2 inductor
[1]
CIN2HF
0.1 µF
[1]
COSW2
3 x 22 µF
1.0 µH
LSW2
[1] Use X5R or X7R capacitors.
10.4.4.4.3 SW2 Specifications
Table 61.ꢀSW2 electrical characteristics
All parameters are specified at TMIN to TMAX (see Table 4), 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.
Symbol
Parameter
Min
Typ
Max
Unit
SWITCH MODE SUPPLY SW2
[1]
VINSW2
VSW2
Operating input voltage
2.8
—
—
4.5
—
V
V
Nominal output voltage
Output voltage accuracy
Table 53
VSW2ACC
PWM, APS, 2.8 V < VIN < 4.5 V, 0 < ISW2
2.5 A
<
−25
—
—
—
25
mV
%
0.625 V < VSW2 < 0.85 V
0.875 V < VSW2 < 1.975
2.0 V < VSW2 < 3.3 V
−3.0 %
−6.0 %
3.0 %
6.0 %
%
PFM, 2.8 V < VIN < 4.5 V, 0 < ISW2 ≤ 50 mA
0.625 V < VSW2 < 0.675 V
0.7 V < VSW2 < 0.85 V
−65
—
—
—
—
65
mV
mV
%
−45
45
−3.0 %
−3.0 %
3.0 %
3.0 %
0.875 V < VSW2 < 1.975 V
2.0 V < VSW2 < 3.3 V
%
[2]
ISW2
Rated output load current
mA
2.8 V < VIN < 4.5 V, 0.625 V < VSW2 < 3.3 V
2.8 V < VIN < 4.5 V, 1.2 V < VSW2 < 3.3 V,
SW2LIM = 0
—
—
2500
PF4210
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© NXP B.V. 2018. All rights reserved.
Data sheet: technical data
Rev. 2.0 — 14 November 2018
58 / 137
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