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NXP Semiconductors MC32PF8121F1EP
- Part No.:
- MC32PF8121F1EP
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC32PF8121F1EP.pdf
- Description:
- IC POWER MANAGEMENT I.MX8M MINI
- Quantity:
- Payment:
- Shipping:
Inventory:1,208
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Product details
Overview
MC32PF8121F1EP from NXP Semiconductors is a 12-channel power management IC (PMIC) designed for i.MX 8M Mini-based high-performance consumer systems. It integrates seven buck converters (0.4–1.8 V, 2.5 A each; SW7 up to 4.1 V), four LDOs (1.5–5.0 V, 400 mA), RTC supply (VSNVS at 1.8/3.0/3.3 V), coin cell charger, watchdog timer, and 24-channel analog multiplexer - all in a single HVQFN56 package.
For engineers reviewing the MC32PF8121F1EP datasheet, MC32PF8121F1EP pinout, MC32PF8121F1EP application, or MC32PF8121F1EP equivalent, this PMIC delivers OTP-configurable power sequencing, dynamic voltage scaling across six bucks, VTT termination on SW6, I²C interface up to 3.4 MHz, and thermal/fault monitoring critical for LPDDR4 memory-powered edge devices.
Technical Context
The MC32PF8121F1EP implements a deterministic state machine with OTP-loaded startup sequence, supporting hard reset, standby, LP_Off, QPU_Off, and fault-shutdown states. Its architecture enables synchronized regulator control via I²C while maintaining independent voltage monitoring per channel and programmable soft-start/power-down timing.
It features dual-phase (SW1/SW2, SW3/SW4, SW5/SW6) and triple-phase (SW1/SW2/SW3) configurations, plus quad-phase capability (SW1–SW4) delivering up to 10 A total current. The integrated 24-channel analog mux supports real-time system diagnostics using external sensors or internal rail monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulator Count | 7 buck converters + 4 LDOs + VSNVS RTC/coin-cell supply = 12 regulated outputs |
| Buck Output Range | SW1–SW6: 0.4 V to 1.8 V (6.25 mV steps); SW7: 1.0 V to 4.1 V - supports core, I/O, and memory rails |
| Current Rating | All bucks rated at 2500 mA; all LDOs at 400 mA - sufficient for i.MX 8M Mini CPU, GPU, DDRIO, and peripherals |
| I²C Interface | High-speed mode up to 3.4 MHz - enables rapid configuration updates during DVFS transitions |
| OTP Memory | One-time programmable storage for boot voltage, sequencing, and safety thresholds - eliminates external configuration resistors |
| Thermal Protection | Junction shutdown at 150 °C with programmable thermal monitoring - prevents damage during sustained load or poor PCB cooling |
| Package | HVQFN56, 8 mm × 8 mm × 0.9 mm, thermally enhanced with wettable flank - optimized for high-power density and thermal dissipation |
Pinout & Package
HVQFN56 package (SOT684-29(D)), 8 mm × 8 mm × 0.9 mm body, 0.5 mm pitch, exposed thermal pad (EPAD) connected to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 50) | Main input supply | Accepts 2.7–5.5 V input; powers all internal regulators and logic - requires bulk capacitance near pin |
| SW1LX–SW7LX (Pins 5,6,9,10,33,34,36) | Buck switching nodes | Connect to external inductors; transient-tolerant to −3.0 V spikes - demands tight layout with low-inductance paths |
| SW1FB–SW7FB (Pins 3,12,13,38,31,30,2) | Buck feedback inputs | Resistor-divider inputs for output voltage regulation; high-impedance - sensitive to noise coupling |
| LDO1OUT–LDO4OUT (Pins 15,18,25,28) | LDO regulated outputs | Provide low-noise 1.5–5.0 V supplies; support optional load switch mode - suitable for analog, I/O, or always-on domains |
| VSNVS (Pin 47) | RTC/backup supply | Programmable 1.8/3.0/3.3 V output from VIN or LICELL - maintains real-time clock and SRAM during main power loss |
| SCL/SDA (Pins 55/56) | I²C interface | 3.4 MHz capable; require pull-up to VDDIO (1.6–3.3 V) - used for runtime reconfiguration and telemetry readback |
| EPAD (Pin 57) | Thermal pad | Must be soldered to large PCB copper pour for thermal conduction - critical for junction temperature control under full load |
Key Features
| Feature | Design Value |
|---|---|
| Dual/triple/quad-phase buck configuration | Enables scalable current delivery: 5 A (dual), 7.5 A (triple), or 10 A (quad) - matches processor DVFS demand without external paralleling |
| VTT termination on SW6 | Supports DDR3L/LPDDR4 VTT rail generation with programmable current limit - eliminates need for discrete VTT solution |
| 24-channel analog multiplexer | Allows monitoring of external voltages, temperatures, or currents via single ADC input - reduces BOM count and routing complexity |
| OTP-programmed startup sequence | Stores voltage targets, ramp rates, and enable order - ensures reliable boot without firmware intervention or external sequencer |
| Integrated coin cell charger | Programmable charge voltage (2.5–3.0 V) and current (0–2 mA) - extends backup battery life and prevents overcharge in RTC applications |
| Advanced fault handling | Independent PGOOD per regulator, fault counter, thermal shutdown, and watchdog timeout - enables graceful system recovery or safe power-down |
Applications
| i.MX 8M Mini Reference Platforms | LPDDR4-Based Edge AI Gateways |
|---|---|
|
Use Scenario: Powering NXP i.MX 8M Mini SoC with LPDDR4 memory, eMMC, SD card, and Ethernet PHY in compact industrial gateway. IC Role / Device Role / Timing Role: Primary PMIC managing CPU core (SW1), GPU (SW2), DDRIO (SW4), VDD_SOC (SW3), VTT (SW6), and RTC (VSNVS). Use Value: OTP-configured sequencing ensures correct power-up order for LPDDR4 initialization; VTT termination on SW6 eliminates discrete component. |
Use Scenario: Powering vision-enabled smart home hub with dual camera interfaces, Wi-Fi/BT module, and USB peripherals. IC Role / Device Role / Timing Role: Central power controller delivering 1.0 V (GPU), 0.85 V (LPDDR4 I/O), 1.1 V (DRAM), 3.3 V (peripherals), and 1.8 V (camera sensor I/O). Use Value: Dynamic voltage scaling across SW1–SW6 reduces active power by >30% during low-compute states; I²C telemetry enables runtime thermal throttling. |
| Industrial HMI Panels | Portable Medical Imaging Devices |
|
Use Scenario: Powering ARM-based HMI with capacitive touchscreen, LCD backlight, CAN transceiver, and isolated RS-485 interface. IC Role / Device Role / Timing Role: Supplies 1.5 V (SCU), 3.3 V (GPIO/HV I/O), 1.8 V (LV I/O), 2.5 V (SD card), and VSNVS (RTC) with fail-safe PGOOD monitoring. Use Value: Watchdog timer and independent voltage monitors detect brown-out or rail collapse - triggers controlled shutdown before data corruption. |
Use Scenario: Powering handheld ultrasound device with FPGA, ADC front-end, RF transceiver, and OLED display. IC Role / Device Role / Timing Role: Delivers ultra-low-noise 1.8 V (analog front-end), 1.2 V (FPGA core), 3.3 V (OLED bias), and coin-cell-backed VSNVS (real-time timestamping). Use Value: LDOs with 3% accuracy and optional load switch minimize standby current; 24-channel AMUX enables simultaneous battery health and sensor diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33PF8121F1EP | Automotive-grade variant (AEC-Q100 Grade 2); identical pinout, OTP structure, and regulator specs but qualified for −40°C to +105°C operation | Required for automotive infotainment or ADAS modules; not qualified for consumer-grade thermal cycling or humidity testing | Select MC33PF8121F1EP only when automotive qualification and extended temperature range are mandatory |
| PF8200A0EP | Successor PMIC with 8 bucks + 4 LDOs; adds USB Type-C PD controller, higher I²C speed (5 MHz), and enhanced OTP security features | Targets next-gen i.MX 9 series platforms; lacks direct LPDDR4 VTT support and has different pin mapping | Choose PF8200A0EP for new designs requiring USB-C power delivery or future-proofing beyond i.MX 8M Mini roadmap |
Compared with MC32PF8121F1EP, MC33PF8121F1EP offers automotive qualification at no pinout or firmware change cost, while PF8200A0EP provides expanded functionality at the expense of backward compatibility and increased BOM complexity.
Availability
MC32PF8121F1EP is available at Aetrix Electronics and suitable for i.MX 8M Mini reference designs, LPDDR4-based edge AI gateways, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MC32PF8121F1EP 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 focused on secure connectivity solutions for automotive, industrial, IoT, and mobile applications, with deep expertise in ARM-based application processors and power management.
The PF8121 product line was engineered specifically to serve as the primary power subsystem for NXP's i.MX 8 series processors, emphasizing OTP configurability, multi-rail sequencing, and integration density for space-constrained consumer and industrial edge devices.
FAQ
What is the primary target processor for MC32PF8121F1EP?
The MC32PF8121F1EP is explicitly designed for the NXP i.MX 8M Mini application processor, as confirmed in its ordering information table and application diagram. It supports LPDDR4 memory configurations and provides dedicated VTT termination on SW6 - matching the i.MX 8M Mini's power architecture. While compatible with select i.MX 6 series and non-NXP processors, its OTP configuration and default sequencing are optimized for i.MX 8M Mini.
Does MC32PF8121F1EP support dynamic voltage scaling (DVS)?
Yes, MC32PF8121F1EP supports DVS on SW1 through SW6 buck converters via I²C commands. Each buck can be adjusted in 6.25 mV steps across its full output range (0.4–1.8 V), enabling real-time voltage adaptation to processor load states. This feature is documented in Section 12.1 and verified in the functional block diagram and power tree summary.
How does the OTP memory in MC32PF8121F1EP reduce external components?
The OTP memory in MC32PF8121F1EP stores startup voltage levels, power-up/down sequencing order, soft-start timing, and safety thresholds - eliminating the need for external resistor dividers, RC networks, or discrete sequencers. This reduces bill-of-materials count, PCB area, and design validation effort while ensuring repeatable, firmware-independent boot behavior.
What is the role of the 24-channel analog multiplexer in MC32PF8121F1EP?
The 24-channel analog multiplexer in MC32PF8121F1EP routes external sensor signals (e.g., temperature, battery voltage, current sense) or internal rail monitors to a shared ADC input. This enables centralized system-level diagnostics without adding external mux ICs or ADC channels - reducing cost and simplifying layout in space-constrained edge devices powered by MC32PF8121F1EP.
Can MC32PF8121F1EP operate with a coin cell battery during main power loss?
Yes, MC32PF8121F1EP supports coin cell backup via the LICELL pin (Pin 46) and delivers regulated VSNVS (1.8/3.0/3.3 V, 10 mA) from either VIN or the coin cell. Its integrated charger provides programmable voltage (2.5–3.0 V) and current (0–2 mA), allowing safe, long-term backup for RTC and SRAM retention - a key requirement in portable and medical applications using MC32PF8121F1EP.
MC32PF8121F1EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tray
- 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)
MC32PF8121F1EP FAQ
1.How can I place an order for MC32PF8121F1EP through Aetrix?
Please submit a Request for Quotation (RFQ) for MC32PF8121F1EP 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 MC32PF8121F1EP reliable?
The price and inventory of MC32PF8121F1EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC32PF8121F1EP is usually 5 days.
3.What payment methods are accepted for MC32PF8121F1EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC32PF8121F1EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC32PF8121F1EP?
MC32PF8121F1EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC32PF8121F1EP 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 MC32PF8121F1EP?
For technical support, including MC32PF8121F1EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC32PF8121F1EP requirements.
6.How does Aetrix verify that MC32PF8121F1EP is sourced from the original manufacturer or authorized distributors?
All MC32PF8121F1EP 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 MC32PF8121F1EP meets industry standards.
7.What is the process for return or replacement of MC32PF8121F1EP?
All MC32PF8121F1EP units undergo pre-shipment inspection (PSI). If there is an issue with MC32PF8121F1EP, 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 MC32PF8121F1EP part is unused and in its original packaging.
Return procedure for MC32PF8121F1EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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