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NXP Semiconductors MC32PF1550A8EPR2
- Part No.:
- MC32PF1550A8EPR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MC32PF1550A8EPR2.pdf
- Description:
- POWER MANAGEMENT IC 3 BUCK REGS
- Quantity:
- Payment:
- Shipping:
Inventory:1,469
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Product details
Overview
MC32PF1550A8EPR2 from NXP Semiconductors is a preprogrammed power management IC (PMIC) optimized for i.MX 6UL with DDR3L memory in edge-sensitive applications. It integrates three 1.0 A buck converters, three LDOs (300 mA/400 mA/300 mA), RTC supply (VSNVS, 3.0 V), DDR reference (VREFDDR, 0.5–0.9 V), and a linear Li-ion charger (100–1000 mA charge current, 3.5–4.44 V CV). It supports battery supplement mode and JEITA-compliant thermal charging control in wearable and IoT systems.
For engineers reviewing the MC32PF1550A8EPR2 datasheet, MC32PF1550A8EPR2 pinout, MC32PF1550A8EPR2 application, or MC32PF1550A8EPR2 equivalent, this page delivers verified specifications, validated pin functions, confirmed i.MX 6UL DDR3L compatibility, thermal regulation thresholds (80/95/110 °C), and I²C-configurable startup/power-down sequences per OTP programming.
Technical Context
The MC32PF1550A8EPR2 implements a dedicated power architecture for i.MX 6UL processors with DDR3L memory interface timing constraints, featuring dynamic voltage scaling on SW1 and SW2 buck regulators and programmable soft-start for controlled rail sequencing. Its integrated VSYS regulator withstands transient inputs up to +22 V DC, while the coin-cell charger (LICELL) maintains RTC backup during main battery depletion.
It uses an I²C interface (SCL/SDA pins) for real-time processor control of regulator outputs, charger parameters, and event reporting via INTB and INT2P7. The OTP memory stores user-defined startup sequence, DVS profiles, and JEITA temperature thresholds - all factory-programmed for configuration code A8 (i.MX 6UL with DDR3L, Edge Sensitive).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (VBUSIN) | 4.1 V to 6.0 V - Supports USB bus or AC adapter input with 22 V transient withstand capability |
| Buck Converters (SW1/SW2) | 0.6 V–1.3875 V (12.5 mV steps) or 1.1 V–3.3 V (variable) - Enables DVS for ARM core voltage scaling |
| Buck Converter (SW3) | 1.8 V–3.3 V (100 mV steps) - Dedicated output for DDR3L I/O or peripheral rails |
| LDO Outputs | LDO1/LDO3: 0.75–1.5 V / 1.8–3.3 V, 300 mA; LDO2: 1.8–3.3 V, 400 mA - Programmable for memory, PHY, or sensor bias |
| Charger Output | 3.5 V–4.44 V CV, 100–1000 mA CC - Configurable for single-cell Li-ion with JEITA temp sensing |
| Operating Temperature | −40 °C to 105 °C - Qualified for industrial ambient conditions per MC34-series variant |
| Package | 40-pin QFN 5.0 mm × 5.0 mm with exposed pad - Thermal resistance RΘJB = 8.8 °C/W for high-power density designs |
Pinout & Package
MC32PF1550A8EPR2 is housed in a 40-pin QFN (5.0 mm × 5.0 mm, 0.5 mm pitch) with thermally enhanced EPAD connected to ground. Pin functions are validated per NXP PF1550 datasheet Rev. 7 (2021), Figure 4 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1FB, SW2FB, SW3FB | Buck feedback inputs | Enable precise output voltage regulation via external resistor dividers; SW1/SW2 support DVS |
| VREFDDR, VINREFDDR | DDR reference voltage path | VREFDDR output (0.5–0.9 V) derived from VINREFDDR input - critical for DDR3L signal integrity |
| VBUSIN, VSYS, VBATT | Power-path inputs/outputs | VBUSIN accepts 4.1–6.0 V input; VSYS is regulated system rail (3.5/3.7/4.3 V options); VBATT connects to Li-ion cell |
| SCL, SDA, INTB | I²C interface & interrupt | Standard I²C communication (1.7–3.3 V I/O) with open-drain INTB for asynchronous event signaling |
| THM, LICELL, CHGB | Thermal/battery/LED control | THM monitors NTC thermistor; LICELL charges coin cell for RTC; CHGB drives status LED with programmable duty/frequency |
Key Features
| Feature | Design Value |
|---|---|
| OTP-Programmed Startup Sequence | User-defined power-up order and timing stored in one-time programmable memory - eliminates external sequencing logic for i.MX 6UL DDR3L boot |
| DVS-Capable Buck Regulators | SW1 and SW2 support dynamic voltage scaling under processor control - reduces active power during low-load CPU states |
| JEITA-Compliant Charging | Integrated thermistor monitoring (THM pin) with programmable thresholds (−10 °C to 60 °C) - ensures safe Li-ion charging across environmental extremes |
| Battery Supplement Mode | VSYS automatically draws from VBATT when VSYS falls 10–75 mV below VBATT - maintains system operation during USB disconnect or adapter brownout |
| Industrial Temp Grade | −40 °C to 105 °C operating range - matches MC34-series qualification for extended industrial deployment |
Applications
| Smart Wearables | Low-Power IoT Gateways |
|---|---|
Use Scenario: Compact fitness tracker with i.MX 6UL, BLE, and motion sensors powered by single-cell Li-ion. IC Role / Device Role / Timing Role: MC32PF1550A8EPR2 supplies core (VCORE), DDR3L I/O (SW3), and sensor LDOs while managing battery charge/discharge cycles. Use Value: Integrated DVS and ultra-low quiescent current (<1.5 μA in low-power mode) extend runtime between charges. | Use Scenario: Battery-backed industrial sensor hub aggregating data from multiple Modbus/RS-485 nodes. IC Role / Device Role / Timing Role: MC32PF1550A8EPR2 powers i.MX 6UL application processor, DDR3L memory, and isolated RS-485 transceivers via LDO2. Use Value: VSYS transient tolerance (22 V) and battery supplement mode ensure uninterrupted operation during field power fluctuations. |
| Wireless Game Controllers | Home Automation Hubs |
Use Scenario: Low-latency Bluetooth gaming controller with haptic feedback and motion sensing. IC Role / Device Role / Timing Role: MC32PF1550A8EPR2 delivers tightly regulated 1.1 V core voltage (SW1) and 3.3 V I/O (SW3) synchronized to i.MX 6UL real-time execution. Use Value: Soft-start and programmable ramp rates prevent reset glitches during rapid wake-from-sleep transitions. | Use Scenario: Voice-controlled smart home hub with Wi-Fi, Zigbee, and local storage running Linux on i.MX 6UL. IC Role / Device Role / Timing Role: MC32PF1550A8EPR2 provides VREFDDR (0.75 V) for DDR3L interface, USBPHY (5 V) for OTG, and VSNVS (3.0 V) for RTC/clock backup. Use Value: OTP-stored startup sequence guarantees deterministic boot timing required for secure firmware validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34PF1550A8EP | Identical functionality and pinout; rated for −40 °C to 105 °C industrial temp range (MC34 prefix denotes industrial grade) | Same i.MX 6UL DDR3L edge-sensitive configuration; differs only in qualification grade and tape-and-reel suffix (no R2) | Select MC34PF1550A8EP for deployments requiring full industrial temperature compliance without tape-and-reel packaging |
| PF8100A0EP | Higher integration: adds 2x additional bucks (5 total), 2x more LDOs, and dual-battery support; no JEITA thermistor interface | Targeted at i.MX 8M Mini/Plus platforms; lacks OTP-programmed i.MX 6UL DDR3L sequence and edge-sensitive timing tuning | Choose PF8100A0EP only when upgrading to i.MX 8M and requiring multi-rail flexibility beyond i.MX 6UL constraints |
Compared with MC32PF1550A8EPR2, MC34PF1550A8EP offers identical feature set with extended thermal qualification, while PF8100A0EP provides greater scalability at the cost of i.MX 6UL-specific optimizations and JEITA charging support.
Availability
MC32PF1550A8EPR2 is available at Aetrix Electronics and suitable for smart wearables, low-power IoT gateways, and wireless game controllers requiring stable component supply with guaranteed i.MX 6UL DDR3L compatibility and edge-sensitive timing behavior.
Supply support for MC32PF1550A8EPR2 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 applications.
The PF1550 product line was designed specifically to deliver complete, pre-validated power solutions for NXP's i.MX application processors - minimizing design risk and accelerating time-to-market for battery-powered edge devices.
FAQ
What is the primary processor compatibility of the MC32PF1550A8EPR2?
The MC32PF1550A8EPR2 is factory-programmed for i.MX 6UL processors with DDR3L memory and edge-sensitive timing requirements. Its OTP configuration (code A8) defines the exact startup sequence, voltage rails, and DVS profiles needed for reliable boot and operation - making it incompatible with non-i.MX 6UL platforms without reprogramming, which is not supported.
Does the MC32PF1550A8EPR2 support dynamic voltage scaling (DVS)?
Yes, the MC32PF1550A8EPR2 supports DVS on its SW1 and SW2 buck converters. This allows the i.MX 6UL processor to dynamically adjust core and memory I/O voltages during runtime via I²C commands, reducing active power consumption. DVS operation is enabled by default in the A8 OTP configuration and requires no external components.
What battery charging parameters are configurable in the MC32PF1550A8EPR2?
The MC32PF1550A8EPR2 supports programmable constant-voltage (3.5–4.44 V), constant-current (100–1000 mA), and charge termination current (5–50 mA) settings. These are stored in OTP memory and can be adjusted during development using NXP's configuration tools - but are fixed in the shipped MC32PF1550A8EPR2 device per its A8 programming code.
How does the MC32PF1550A8EPR2 handle thermal regulation during charging?
The MC32PF1550A8EPR2 implements JEITA-compliant thermal regulation using the THM pin and internal NTC monitoring. It supports three programmable thermal thresholds (80 °C, 95 °C, or 110 °C) at which charge current is reduced to prevent overheating - a feature confirmed in the A8 configuration for i.MX 6UL DDR3L systems deployed in enclosed wearable enclosures.
Is the MC32PF1550A8EPR2 pin-compatible with other PF1550 variants?
Yes, all PF1550 variants - including MC32PF1550A8EPR2 - share identical 40-pin QFN packaging and pinout. However, OTP programming (e.g., A0 through A9) determines functional behavior such as startup sequence, voltage levels, and supported processors. Swapping variants without verifying OTP compatibility may cause boot failure or incorrect rail sequencing.
MC32PF1550A8EPR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Embedded Systems, Low-Power IoT, Mobile/Wearable Devices
- Current - Supply:
- -
- Voltage - Supply:
- 4.1V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (5x5)
MC32PF1550A8EPR2 FAQ
1.How can I place an order for MC32PF1550A8EPR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC32PF1550A8EPR2 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 MC32PF1550A8EPR2 reliable?
The price and inventory of MC32PF1550A8EPR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC32PF1550A8EPR2 is usually 5 days.
3.What payment methods are accepted for MC32PF1550A8EPR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC32PF1550A8EPR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC32PF1550A8EPR2?
MC32PF1550A8EPR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC32PF1550A8EPR2 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 MC32PF1550A8EPR2?
For technical support, including MC32PF1550A8EPR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC32PF1550A8EPR2 requirements.
6.How does Aetrix verify that MC32PF1550A8EPR2 is sourced from the original manufacturer or authorized distributors?
All MC32PF1550A8EPR2 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 MC32PF1550A8EPR2 meets industry standards.
7.What is the process for return or replacement of MC32PF1550A8EPR2?
All MC32PF1550A8EPR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC32PF1550A8EPR2, 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 MC32PF1550A8EPR2 part is unused and in its original packaging.
Return procedure for MC32PF1550A8EPR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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