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NXP Semiconductors MC32PF8121EUEPR2
- Part No.:
- MC32PF8121EUEPR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC32PF8121EUEPR2.pdf
- Description:
- POWER MANAGEMENT IC I.MX8 PRE-PR
- Quantity:
- Payment:
- Shipping:
Inventory:1,014
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Product details
Overview
MC32PF8121EUEPR2 from NXP Semiconductors is a 12-channel power management IC (PMIC) designed for high-performance i.MX 8M Mini processor systems. It integrates seven buck converters (SW1–SW7), four linear regulators (LDO1–LDO4), RTC supply (VSNVS), coin cell charger, watchdog timer, and 24-channel analog multiplexer for system monitoring. Key confirmed specs: 0.4–4.1 V output range across regulators, 2.5 A per buck channel, ±1.5 % output accuracy on SW1–SW6, 3.4 MHz I²C interface, and OTP-configurable startup sequence.
For engineers reviewing the MC32PF8121EUEPR2 datasheet, MC32PF8121EUEPR2 pinout, MC32PF8121EUEPR2 application, or MC32PF8121EUEPR2 equivalent, this page delivers verified regulator configurations, thermal performance data, I²C programmability details, and real-world use cases in LPDDR4-powered multimedia edge devices - all derived from NXP's official PF8121 Rev. 6 product data sheet (Oct 2024).
Technical Context
The MC32PF8121EUEPR2 implements a hierarchical state machine with OTP-initialized boot sequencing, supporting hard reset, standby, LP_Off, QPU_Off, and fault-shutdown states. Its architecture enables dynamic voltage scaling (DVS) on six buck channels and triple/quad-phase configuration (e.g., SW1–SW3 up to 7.5 A; SW1–SW4 up to 10 A), plus VTT termination on SW6 for DDR memory interfaces.
Regulator control is executed via a dedicated digital core with integrated 24-channel analog mux, independent voltage monitors (PGOOD, VMON), thermal shutdown at 150 °C, and CRC-protected I²C communication. The device supports external clock synchronization (SYNCIN/SYNCOUT), spread-spectrum switching, and programmable soft-start/power-down sequences - all configurable post-boot via I²C or pre-programmed in OTP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulator Count | 7 buck converters + 4 LDOs + VSNVS RTC/coin-cell supply = 12 total regulated outputs |
| Buck Output Range | SW1–SW6: 0.4 V to 1.8 V (6.25 mV step); SW7: 1.0 V to 4.1 V - covers CPU, GPU, DDR I/O, and peripheral rails |
| Current Rating | 2500 mA per buck channel; 400 mA per LDO - sufficient for i.MX 8M Mini core, DDR, and auxiliary loads |
| Accuracy | ±1.5 % for SW1–SW6; ±2 % for SW7; ±3 % for all LDOs - ensures stable operation under load transients |
| I²C Interface | Up to 3.4 MHz high-speed mode - enables rapid runtime reconfiguration of voltage, sequencing, and protection thresholds |
| Package | HVQFN56, 8 mm × 8 mm × 0.9 mm, thermally enhanced wettable flank - optimized for thermal dissipation in compact PCB layouts |
| Operating Temp | −40 °C to +85 °C ambient - qualified for industrial and consumer edge applications |
Pinout & Package
HVQFN56 package with 56 terminals, 0.5 mm pitch, exposed thermal pad (EPAD) connected to ground. Pin layout optimized for low-inductance power routing and signal integrity in high-density i.MX 8M Mini designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 50) | Main input supply | Accepts 2.7–5.5 V input; powers internal regulators and LDOs - must be decoupled near package |
| SW1LX–SW7LX (Pins 5,6,9,10,33,34,36) | Buck switching nodes | High-frequency AC switch points requiring tight loop layout; tolerate −3.0 V transient spikes during dead time |
| SW1FB–SW7FB (Pins 3,13,12,38,31,30,2) | Buck feedback inputs | Resistive divider inputs for closed-loop regulation; support precision output setting and DVS |
| LDO1OUT–LDO4OUT (Pins 15,18,25,28) | LDO outputs | Low-noise, fixed/programmable analog/digital supplies - LDO1/LDO2 support hardware/software enable and load switch mode |
| VSNVS (Pin 47) | RTC backup supply | 1.8/3.0/3.3 V selectable output; powered from VIN or LICELL (Pin 46) - maintains real-time clock during main power loss |
| SCL/SDA (Pins 55/56) | I²C interface | 3.4 MHz capable; VDDIO (Pin 54) sets logic level (1.6–3.3 V) - enables full PMIC register access and runtime tuning |
| INTB/PGOOD/RESETBMCU (Pins 24/42/21) | System signaling | Open-drain status outputs - coordinate processor boot, fault reporting, and safe power sequencing |
Key Features
| Feature | Design Value |
|---|---|
| OTP-based startup configuration | Eliminates external resistors and sequencing ICs - reduces BOM count and board area for i.MX 8M Mini reference designs |
| Dual/triple/quad-phase buck capability | Enables scalable current delivery: SW1–SW3 triple-phase (7.5 A), SW1–SW4 quad-phase (10 A) - supports high-core-count SoC burst loads |
| VTT termination on SW6 | Directly supplies DDR3L/LPDDR4 VTT rail without external components - simplifies memory interface design and improves signal integrity |
| 24-channel analog multiplexer | Allows real-time monitoring of internal voltages, die temperature, and external signals - enables predictive thermal management and diagnostics |
| Coin cell charger with programmable settings | Configurable charge current/voltage via OTP or I²C - extends RTC battery life and supports field-upgradable backup power policies |
Applications
| i.MX 8M Mini Multimedia Gateway | LPDDR4-Based Edge AI Camera |
|---|---|
Use Scenario: Powering i.MX 8M Mini SoC with dual-band Wi-Fi, HDMI, and USB 3.0 peripherals in a compact gateway enclosure. IC Role / Device Role / Timing Role: Primary PMIC managing CPU core (SW1), GPU (SW2), DDR I/O (SW4), VTT (SW6), and 1.8 V/3.3 V I/O rails (LDOs). Use Value: OTP-configured boot sequence ensures deterministic power-up timing; DVS on SW1/SW2 reduces dynamic power during video encode/decode cycles. |
Use Scenario: Compact vision system running YOLOv5 inference with MIPI CSI-2 camera and eMMC storage. IC Role / Device Role / Timing Role: Supplies 0.85 V LPDDR4 core (SW4), 1.1 V LPDDR4 I/O (SW7), 1.8 V sensor interface (LDO3), and RTC backup (VSNVS). Use Value: SW4/SW7 voltage accuracy (±1.5 %/±2 %) meets LPDDR4 JEDEC tVAC/tDQS timing margins; VSNVS sustains clock during brief main power interruptions. |
| Industrial HMI with Extended Temperature Range | Secure IoT Gateway with Watchdog Monitoring |
Use Scenario: Fanless HMI panel operating continuously at 85 °C ambient in factory automation environments. IC Role / Device Role / Timing Role: Delivers 1.0 V CPU core (SW1), 3.3 V CAN/RS-485 interface (LDO4), and 1.8 V display controller (LDO2). Use Value: Thermal shutdown at 150 °C junction and RθJC = 0.6 °C/W ensure reliable operation; LDO4 load-switch mode isolates faults without system reset. |
Use Scenario: Cellular-connected gateway performing secure firmware updates over LTE with fail-safe rollback. IC Role / Device Role / Timing Role: Provides watchdog supervision (WDI/RESETBMCU), early warning (EWARN), and fault notification (FSOB) to MCU during update verification. Use Value: Programmable watchdog timeout and fault counter prevent bricking; I²C CRC ensures register write integrity during critical update phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33PF8100A0ES | 10-channel PMIC; no SW7 or VTT mode; lower I²C speed (1 MHz); 48-pin HVQFN | Targeted at i.MX 6SoloX; lacks LPDDR4-specific VTT and extended voltage range for SW7 | Select when cost-sensitive i.MX 6 designs require reduced channel count and simpler sequencing |
| RTQ2136B-QA | 6-channel buck-only PMIC; no LDOs, RTC, or coin cell support; automotive AEC-Q100 Grade 2 | Designed for ADAS domain controllers; requires external LDOs and RTC circuitry | Choose for automotive-grade reliability where integrated LDOs and backup power are handled externally |
Compared with MC32PF8121EUEPR2, MC33PF8100A0ES offers fewer rails and no VTT, limiting LPDDR4 compatibility, while RTQ2136B-QA provides automotive qualification but demands additional discrete components for full system power - making MC32PF8121EUEPR2 optimal for feature-complete, space-constrained i.MX 8M Mini designs.
Availability
MC32PF8121EUEPR2 is available at Aetrix Electronics and suitable for high-performance consumer electronics, industrial HMIs, and edge AI vision systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MC32PF8121EUEPR2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based application processors and power management.
The PF8121 product line was engineered specifically to deliver complete, OTP-configurable power solutions for NXP's i.MX 8 series - minimizing external components while enabling precise voltage control, thermal resilience, and fast boot for multimedia-rich edge devices.
FAQ
What is the primary target processor for the MC32PF8121EUEPR2?
The MC32PF8121EUEPR2 is explicitly designed for the i.MX 8M Mini application processor, as confirmed in NXP's ordering information table and application diagram. It supports LPDDR4 memory configurations (e.g., Vin > 4.0 V, SW7 = 3.3 V, SW4 = 0.85 V) specified for MC32PF8121EUEP variants. The PMIC's OTP programming, voltage ranges, and sequencing align directly with i.MX 8M Mini power requirements.
Does the MC32PF8121EUEPR2 support LPDDR4 VTT termination?
Yes, the MC32PF8121EUEPR2 supports VTT termination through SW6, which is configurable for VTT mode (0.4 V to 1.8 V) with 2.5 A rating. This capability is documented in Section 12.1 and Table 9 of the datasheet, enabling direct compliance with LPDDR4 VTT specifications without external components - a key differentiator for i.MX 8M Mini memory interfaces.
How does the OTP memory in the MC32PF8121EUEPR2 reduce external component count?
The MC32PF8121EUEPR2 uses OTP memory to store startup configurations including output voltages, power-on sequencing order, soft-start timing, and protection thresholds. This eliminates the need for external resistor dividers, sequencing ICs, and configuration EEPROMs - reducing BOM cost, PCB area, and design validation effort for i.MX 8M Mini reference designs.
What thermal performance metrics are specified for the MC32PF8121EUEPR2 in a 4-layer PCB?
For a 4-layer board (2s2p), the MC32PF8121EUEPR2 has RθJA = 27 °C/W under natural convection and RθJMA = 22 °C/W at 200 ft/min airflow. Its junction-to-case (RθJC = 0.6 °C/W) and junction-to-board (RθJB = 11 °C/W) values confirm efficient heat transfer to the PCB - critical for sustained 2.5 A buck operation in thermally constrained edge devices.
Can the MC32PF8121EUEPR2 be used with non-NXP processors?
Yes, the MC32PF8121EUEPR2 is capable of powering non-NXP processors, as stated in Section 12.1: "It is also capable of providing power solution to the high end i.MX 6 series as well as several non-NXP processors." Its flexible I²C programmability, wide output voltage ranges, and generic power sequencing make it adaptable - though OTP configuration and reference designs are optimized for i.MX platforms.
MC32PF8121EUEPR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Industrial, IoT
- Current - Supply:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-HVQFN (8x8)
MC32PF8121EUEPR2 FAQ
1.How can I place an order for MC32PF8121EUEPR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC32PF8121EUEPR2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC32PF8121EUEPR2 reliable?
The price and inventory of MC32PF8121EUEPR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC32PF8121EUEPR2 is usually 5 days.
3.What payment methods are accepted for MC32PF8121EUEPR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC32PF8121EUEPR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC32PF8121EUEPR2?
MC32PF8121EUEPR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC32PF8121EUEPR2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC32PF8121EUEPR2?
For technical support, including MC32PF8121EUEPR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC32PF8121EUEPR2 requirements.
6.How does Aetrix verify that MC32PF8121EUEPR2 is sourced from the original manufacturer or authorized distributors?
All MC32PF8121EUEPR2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC32PF8121EUEPR2 meets industry standards.
7.What is the process for return or replacement of MC32PF8121EUEPR2?
All MC32PF8121EUEPR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC32PF8121EUEPR2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC32PF8121EUEPR2 part is unused and in its original packaging.
Return procedure for MC32PF8121EUEPR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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