NXP Semiconductors
PF4210
14-channel power management integrated circuit (PMIC) for audio/video applications
Symbol
Parameter
Min
Typ
Max
Unit
VGEN6LOTR
Transient load response
VIN3 = VIN3MIN, 4.5 V
%
—
—
3.0
IGEN6 = 20 to 200 mA in 1.0 µs
Peak of overshoot or undershoot of VGEN6
with respect to final value. See Figure 30.
VGEN6LITR
Transient line response
IGEN6 = 150 m
mV
VIN3INITIAL = 2.8 V to VIN3FINAL = 3.3 V for
VGEN6[3:0] = 0000 to 0111
—
5.0
8.0
VIN3INITIAL = VGEN6 + 0.3 V to VIN3FINAL
= VGEN6 + 0.8 V for VGEN6[3:0] = 1000 to
1111
See Figure 30
[1] When the LDO output voltage is set above 2.6 V the minimum allowed input voltage need to be at least the output voltage plus 0.25 V for proper
regulation due to the dropout voltage generated through the internal LDO transistor.
[2] The PSRR of the regulators is measured with the perturbing signal at the input of the regulator. The power management IC is supplied separately from
the input of the regulator and does not contain the perturbed signal. During measurements, care must be taken not to operate in the dropout region of the
regulator under test. VIN3MIN refers to the minimum allowed input voltage for a particular output voltage.
10.4.6.6 VSNVS LDO/switch
VSNVS powers the low-power SNVS/RTC domain on the processor. It derives its power
from either VIN, or coin cell, and cannot be disabled. When powered by both, VIN takes
precedence when above the appropriate comparator threshold. When powered by VIN,
VSNVS is an LDO capable of supplying seven voltages: 3.0, 1.8, 1.5, 1.3, 1.2, 1.1, and
1.0. The bits VSNVSVOLT[2:0] in register VSNVS_CONTROL determine the output
voltage. When powered by coin cell, VSNVS is an LDO capable of supplying 1.8, 1.5,
1.3, 1.2, 1.1, 1.0 as shown in Table 106.
If the 3.0 V option is chosen with the coin cell, VSNVS tracks the coin cell voltage by
means of a switch, whose maximum resistance is 100 Ω. In this case, the VSNVS
voltage is simply the coin cell voltage minus the voltage drop across the switch, which
is 40 mV at a rated maximum load current of 1.5 mA (consumer version) or 1.0 mA
(industrial version).
The default setting of the VSNVSVOLT[2:0] is 110, or 3.0 V, unless programmed
otherwise in OTP. However, when the coin cell is applied for the very first time, VSNVS
outputs 1.0 V. Only when VIN is applied, VSNVS transitions to its default, or programmed
value if different. Upon subsequent removal of VIN, with the coin cell attached, VSNVS
changes configuration from an LDO to a switch for the 110 setting, and remains as an
LDO for the other settings, continuing to output the same voltage as when VIN is applied,
provided certain conditions are met as described in Table 106.
PF4210
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© NXP B.V. 2018. All rights reserved.
Data sheet: technical data
Rev. 2.0 — 14 November 2018
100 / 137
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