PF1550
Power management integrated circuit (PMIC) for low power
application processors
Rev. 5 — 10 June 2019
Product...
PF1550
Power management integrated circuit (PMIC) for low power
application processors
Rev. 5 — 10 June 2019
Product data sheet
1 General description
The PF1550 is a power management integrated circuit (PMIC) designed specifically for use with i.MX processors on low-power portable, smart wearable and Internet-of-Things (IoT) applications. It is also capable of providing full power solution to i.MX 7ULP, i.MX 6SL, 6UL, 6ULL, and 6SX processors.
With three high-efficiency buck converter, three linear regulators, RTC supply, and battery linear charger, the PF1550 can provide power for a complete battery-powered system, including application processors, memory, and system peripherals.
1.1 Features and benefits
This section summarizes the PF1550 features:
Input
voltage range to PMIC VBUSIN pin via USB bus or AC adapter: 4.1 V to 6.0 V Buck converters:
– SW1, 1.0 A; 0.6 V to 1.3875 V in 12.5 mV steps, or 1.1 V to 3.3 V in variable steps – SW2, 1.0 A; 0.6 V to 1.3875 V in 12.5 mV steps, or 1.1 V to 3.3 V in variable steps – SW3, 1.0 A; 1.8 V to 3.3 V in 100 mV steps – Soft start – Quiescent current 1.0 μA in ULP mode with light load – Peak efficiency > 90 % – Dynamic
voltage scaling on SW1 and SW2 – Modes: forced PWM quasi-fixed frequency mode, adaptive variable-frequency mode – Programmable output
voltage, current limit, and soft start LDO regulators – LDO1, 0.75 V to 1.5 V/1.8 to 3.3 V, 300 mA with load switch mode – LDO2, 1.8 V to 3.3 V, 400 mA – LDO3, 0.75 V to 1.5 V/...