NXP Semiconductors
PF4210
14-channel power management integrated circuit (PMIC) for audio/video applications
VIN
SW1AIN
SW1AMODE
I
SENSE
C
INSW1A
CONTROLLER
SW1A/B/C
SW1ALX
DRIVER
L
SW1
SW1AFAULT
C
OSW1A
INTERNAL
COMPENSATION
I2C
Z2
SW1FB
Z1
EA
V
REF
DAC
SW1BIN
SW1BMODE
I
SENSE
C
INSW1B
2
I C
CONTROLLER
INTERFACE
SW1BLX
DRIVER
SW1BFAULT
SW1CMODE
SW1CIN
I
SENSE
C
INSW1C
CONTROLLER
SW1CLX
EP
DRIVER
SW1CFAULT
INTERNAL
COMPENSATION
I2C
Z2
SW1CFB
Z1
EA
V
REF
DAC
aaa-026479
Figure 10.ꢀSW1A/B/C single phase block diagram
10.4.4.3.2 SW1A/B single phase - SW1C independent mode
In this configuration, SW1A/B is connected as a single phase with a single inductor,
while SW1C is used as an independent output, using its own inductor and configurations
parameters. This configuration allows reduced component count by using only one
inductor for SW1A/ B. As mentioned before, SW1A/B and SW1C operate independently
from one another, thus, they can be operated with a different voltage set point for normal,
standby, and sleep modes, as well as switching mode selection and on/off control.
Figure 11 shows the physical connection for SW1A/B in single phase and SW1C as an
independent output.
PF4210
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© NXP B.V. 2018. All rights reserved.
Data sheet: technical data
Rev. 2.0 — 14 November 2018
39 / 137
NXP [ NXP ]
