PMIC with 1A Li+ Linear Battery Charger for Low Power Processor Systems

PF1550

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The PF1550 is a power management IC (PMIC) designed specifically for use with i.MX processors on low-power portable, smart wearable and Internet-of-Things (IoT) applications. It can provide full power solution to i.MX 7ULP, i.MX 6SL, 6UL, 6ULL 6SX, and RT processors-based, battery-powered systems.

With 1A integrated Li+ three high-efficiency buck converters, three linear regulators, DDR reference and RTC supply, the PF1550 can provide power for a complete system, including application processors, memory and system peripherals. The PF1550 is available in power efficient, space-saving 5x5 mm QFN package.

Block Diagram

PF1550: PMIC with 1A Li+ Linear Battery Charger

PF1550: PMIC with 1A Li+ Linear Battery Charger
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Features

General Features

  • Input voltage VIN from 5 V bus, USB or AC adapter (4.1 V to 6.0 V) withstands up to 22 V transient
  • Linear 1A Li+ Battery Charger
  • Buck converters:
    • SW1, 1.0 A; 0.6 V to 1.3875 V
    • SW2, 1.0 A; 0.6 V to 1.3875 V
    • SW3, 1.0 A; 1.8 V to 3.3 V
  • LDO regulators:
    • LDO1, 0.75 to 1.5 V / 1.8 to 3.3 V, 300 mA with load switch mode
    • LDO2, 1.8 to 3.3 V, 400 mA
    • LDO3, 0.75 to 1.5 V / 1.8 to 3.3 V, 300 mA with load switch mode
  • LDO/switch supply
  • RTC supply VSNVS 3.0 V, 2.0 mA
  • Coin Cell Charger
  • DDR memory reference voltage, VREFDDR, 0.5 to 0.9 V, 10 mA
  • I2C interface
  • User programmable Standby, Sleep/Low-power, and Off (REGS_DISABLE) modes
  • Ambient temperature range −40 °C to 105 °C

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The PF1550 is included in the 10-year program

Key Parametrics

  • MCU Supported
    i.MX6UL, i.MX6ULL, i.MX6ULL w/DDR3, i.MX6ULL w/DDR3L, i.MX6ULL w/LPDDR2, i.MX6UL w/DDR3, i.MX6UL w/DDR3L, i.MX6UL w/LPDDR2, i.MX7ULP, i.MX7ULP w/LPDDR3, i.MX RT1050
  • Output Current (A)
    1
  • Number of Buck Regulators
    3
  • Number of LDO
    3
  • Interface and Input Control
    I2C

PMICs and SBCs for Multi-Vendor Processors

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