MC32PF3000A7EP

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1. Describe

MC32PF3000A7EP is a power management integrated circuit (PMIC) designed for Dedicated to NXP i.MX 7 and i.MX 6SL/SX/UL applications processor. With up to four buck converters, six linear regulators, RTC power supply, And coin battery charger, PF3000 can power the entire system, Including application processor, memory and system peripherals. This device Supported by SMARTMOS technology.

2. Feature

    1. The input voltage range of PMIC: 2.8 V to 4.5 V, or 3.7 V to 5.5 V

    2. Buck regulator

    3. Three to four channels can be configured

        - SW1A/B, 2.75 A (single); 0.7V to 1.425V, 1.8V, 3.3V

        - SW1A, 1.0 A (independent); 0.7V to 1.425V, 1.8V, 3.3V

        - SW1B 1.75 A (independent); 0.7V to 1.475V

        - SW2, 1.25 A; 1.50 V to 1.85 V or 2.50 V to 3.30 V

        - SW3, 1.5A; 0.90V to 1.65V

    4. Dynamic voltage scaling

        - Mode: PWM, PFM, APS

        - Programmable output voltage

        - Programmable current limit

        - Programmable soft start sequence

        - Programmable PWM switching frequency

    5. Boost regulator

        - SWBST, 5.0 to 5.15 V, 0.6 A, supports OTG

        - Mode: PFM and automatic

        - OCP failure interrupt

        - LDO

        - VCC_SD, 1.8 V to 1.85 V or 2.85 V to 3.30 V, 100 mA based on SD_VSEL

        - V33, 2.85 V to 3.30 V, 350 mA

        - VLDO1, 1.8 V to 3.3 V, 100 mA

        - VLDO2, 0.80 V to 1.55 V, 250 mA

        - VLDO3, 1.8 V to 3.3 V, 100 mA

        - VLDO4, 1.8 V to 3.3 V, 350 mA

    6. Always turn on the RTC regulator/switch VSNVS 3.0 V, 1.0 mA

    7. DDR memory reference voltage, VREFDDR, 0.5 V to 0.9 V, 10 mA

    8. OTP (One Time Programmable) memory is used for device configuration, user-programmable startup sequence and timing

    9. Battery backup memory, including button battery charger

  10. I2C interface

  11. User programmable standby, sleep/LPSR and shutdown modes

3. Application

    1. tablet

    2. E-reader

    3. Wearable device

    4. POS terminal

    5. industrial control

    6. Medical monitoring

    7. Home automation

    8. Home security/energy management

4. Pin configuration

5. Functional description and application information

1. Introduction

The PF3000 is a highly integrated, low quiescent current power management IC featuring four buck regulators, one boost regulator, seven LDO regulators, and a DDR voltage reference. The PF3000 provides all the necessary rails to power a complete system including the application processor, memory and peripherals. The PF3000 operates from an input voltage of up to 5.5 V. Output voltage, startup sequence, and other functions are set using integrated one-time-programmable (OTP) memory, thus providing flexibility and reducing external component count

2. Power generation

The buck regulators in the PF3000 provide supply to the processor cores and to other voltage domains, such as I/O and memory. Dynamic voltage scaling is provided to allow controlled supply rail adjustments for the processor cores and other circuitry. The SW1A and SW1B buck regulators can either be used as independent 1.0 A and 1.75 A regulators, or can be combined as a single 2.75 A regulator. The linear regulators in the PF3000 can be used as general purpose regulators to power peripherals and lower power processor rails. The VCC_SD LDO regulator supports the dual voltage requirement by high speed SD card readers. Depending on the system power path configuration, the LDO regulators can be directly supplied from the main input supply or from the switching regulators to power peripherals, such as audio, camera, Bluetooth, and Wireless LAN, etc. A specific VREFDDR voltage reference is included to provide accurate reference voltage for DDR memories. The VSNVS block behaves as an LDO, or as a bypass switch to supply the SNVS/SRTC circuitry on the i.MX processors; VSNVS may be powered from VIN, or from a coin cell. To accommodate applications that are powered by main supplies of voltages higher than 4.5 V and up to 5.5 V, the PF3000 incorporates a front-end LDO regulator using an external pass FET to keep the maximum regulator input voltage of the regulators at 4.5 V. Applications with an input voltage lower than 4.5 V can directly power the regulators without using the front-end LDO. PF3000 shows a summary of the voltage regulators in the PF3000