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NXP Semiconductors MC32PF1550A1EPR2
- Part No.:
- MC32PF1550A1EPR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MC32PF1550A1EPR2.pdf
- Description:
- POWER MANAGEMENT IC: 3 BUCK REGS
- Quantity:
- Payment:
- Shipping:
Inventory:4,749
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Product details
Overview
MC32PF1550A1EPR2 from NXP Semiconductors is a preprogrammed power management IC (PMIC) optimized for i.MX 6UL/6ULL application processors in battery-powered IoT and wearable systems. It integrates three 1.0 A buck converters (SW1–SW3), three LDOs (LDO1–LDO3), a linear Li-ion charger (100–1000 mA), RTC supply (VSNVS), DDR reference (VREFDDR), and I²C-controlled power sequencing.
For engineers reviewing the MC32PF1550A1EPR2 datasheet, MC32PF1550A1EPR2 pinout, MC32PF1550A1EPR2 application, or MC32PF1550A1EPR2 equivalent, this page delivers verified electrical specs, thermal ratings, OTP-configurable startup sequences, JEITA-compliant battery thermistor monitoring, and industrial-grade −40 °C to 105 °C operation with QFN40 package compatibility.
Technical Context
The MC32PF1550A1EPR2 implements a dual-domain power architecture: VSYS serves as both main input and regulated output from the integrated linear charger, while SW1 and SW2 support dynamic voltage scaling (DVS) for ARM core and digital domain rails. Its programmable OTP memory stores boot sequence timing, soft-start profiles, and regulator setpoints-enabling deterministic power-up without host processor intervention.
Charging control includes adaptive input voltage regulation (VBUS_LIN_DPM_REG at 4.4 V), battery overcurrent protection up to 3.0 A, and supplement mode activation when VSYS drops 10–75 mV below VBATT. The device uses a dedicated 32 kHz oscillator and supports thermistor-based JEITA temperature profiling across −10 °C to 60 °C thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (VBUSIN) | 4.1 V to 6.0 V - Supports USB 2.0/3.0 and 5 V wall adapters with 22 V transient withstand capability |
| Buck Converters (SW1/SW2) | 0.6 V–1.3875 V @ 1.0 A with DVS - Enables ARM core voltage scaling during low-power states |
| Buck Converter (SW3) | 1.8 V–3.3 V @ 1.0 A - Powers I/O peripherals or memory interfaces without DVS |
| LDO Regulators | LDO1/LDO3: 0.75–3.3 V/300 mA; LDO2: 1.8–3.3 V/400 mA - Supplies analog sensors, audio codecs, and GPIO banks |
| Battery Charger | 100–1000 mA CC, 3.5–4.44 V CV, JEITA temp sensing - Fully manages single-cell Li-ion charging with ship-mode discharge control |
| Operating Temperature | −40 °C to 105 °C - Qualified for industrial embedded applications including home automation and POS terminals |
| Package | 40-pin QFN 5.0 mm × 5.0 mm with exposed pad - Enables compact PCB layout and efficient thermal dissipation (RΘJB = 8.8 °C/W) |
Pinout & Package
MC32PF1550A1EPR2 uses a 40-pin QFN (98ASA00913D) with 0.5 mm pitch and thermally enhanced EPAD. Pin 41 (EPAD) must be soldered to ground for optimal thermal performance and EMI suppression.
| 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 through I²C write |
| VBUSIN / VSYS / VBATT | Power path nodes | VBUSIN accepts 5 V input; VSYS is regulated output shared by charger and PMIC; VBATT connects directly to battery anode |
| VSNVS / VREFDDR | Always-on supplies | VSNVS provides 3.0 V/2.0 mA for RTC and coin cell backup; VREFDDR delivers 0.5–0.9 V/10 mA for DDR memory termination |
| SCL / SDA / INTB | I²C interface | Standard two-wire bus (1.7–3.3 V tolerant) with open-drain interrupt (INTB) for event-driven power state transitions |
| ONKEY / PWRON / STANDBY | System control inputs | Hardware push-button wake-up (ONKEY), power-on reset assertion (PWRON), and low-power entry (STANDBY) enable autonomous system control |
Key Features
| Feature | Design Value |
|---|---|
| OTP-configurable power sequencing | User-programmable startup/shutdown timing, soft-start delays, and rail enable order stored permanently in one-time programmable memory |
| Dual-domain buck regulation | SW1/SW2 support dynamic voltage scaling for CPU/GPU cores; SW3 delivers fixed I/O voltage with no DVS overhead |
| JEITA-compliant battery management | Thermistor monitoring with programmable thresholds (−10 °C to 60 °C) and hysteresis ensures safe charging across environmental conditions |
| Integrated ship-mode control | VSYS self-discharge resistor (600 Ω typical) and ultra-low leakage (<0.2 µA) extend shelf life of battery-powered devices before first use |
| USB PHY LDO | 60 mA output with 55–75 dB PSRR and <350 mV dropout enables clean 3.3 V/4.9 V supply for USB transceivers without external regulators |
Applications
| Smart Wearables | Industrial IoT Gateways |
|---|---|
Use Scenario: Compact fitness tracker with BLE, accelerometer, and OLED display operating on single-cell Li-ion battery. IC Role / Device Role / Timing Role: MC32PF1550A1EPR2 powers ARM Cortex-M core (SW1), sensor hub (LDO2), display driver (SW3), and manages battery charge/discharge cycles. Use Value: Integrated DVS and ultra-low quiescent current (<1.5 μA in low-power mode) extend runtime between charges by >35% versus discrete solutions. | Use Scenario: Edge node aggregating data from multiple RS-485 sensors in factory automation, powered by 3.7 V Li-ion with backup supercapacitor. IC Role / Device Role / Timing Role: MC32PF1550A1EPR2 supplies i.MX 6ULL processor (SW1/SW2), isolated communication ICs (LDO1/LDO3), and maintains RTC during main power loss via VSNVS. Use Value: Ship-mode discharge control and −40 °C to 105 °C rating ensure reliable deployment in uncontrolled industrial environments. |
| Home Automation Hubs | POS Terminals |
Use Scenario: Voice-controlled smart speaker with Wi-Fi/Bluetooth coexistence, microphone array, and local AI inference on i.MX 6UL. IC Role / Device Role / Timing Role: MC32PF1550A1EPR2 delivers regulated power to CPU (SW1), DDR3L memory (VREFDDR), audio codec (LDO2), and USB PHY (USBPHY). Use Value: Preprogrammed OTP configuration eliminates firmware dependency for boot reliability; VREFDDR accuracy (±1%) ensures stable DDR interface timing. | Use Scenario: Portable retail terminal with barcode scanner, thermal printer, and contactless payment module, requiring rapid battery recharge and secure shutdown. IC Role / Device Role / Timing Role: MC32PF1550A1EPR2 manages fast charging (1000 mA), powers secure element (LDO3), controls LED status indicator (CHGB), and asserts RESETBMCU on brownout. Use Value: Programmable charge termination current (5–50 mA) and battery overcurrent protection (2–4 A) meet UL/IEC safety compliance for commercial payment hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34PF1550A1EPR2 | Same silicon, rated for −40 °C to 105 °C industrial temp range; identical OTP programming and pinout | Required for extended-temperature deployments where ambient exceeds 85 °C | Select MC34PF1550A1EPR2 when operating in high-ambient environments such as enclosed kiosks or outdoor gateways |
| PF8100A1EPR2 | Higher integration: adds 2x additional bucks, 2x additional LDOs, and PMIC-level watchdog; larger 56-pin QFN package | Targets more complex i.MX 8M Mini designs requiring multi-rail sequencing and higher current capacity | Choose PF8100A1EPR2 only if system requires >3 bucks or >3 LDOs; otherwise MC32PF1550A1EPR2 offers optimal cost/performance for i.MX 6UL/6ULL |
Compared with MC34PF1550A1EPR2, the MC32PF1550A1EPR2 shares identical functionality but is qualified for consumer-grade 85 °C max ambient; versus PF8100A1EPR2, it reduces BOM count and PCB area by omitting redundant regulators while maintaining full support for i.MX 6UL/6ULL power trees.
Availability
MC32PF1550A1EPR2 is available at Aetrix Electronics and suitable for smart wearables, industrial IoT gateways, and home automation hubs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MC32PF1550A1EPR2 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 PF1550 product line was engineered specifically to simplify power design for NXP's i.MX 6/7ULP family, delivering integrated, OTP-configurable PMICs that eliminate external sequencing logic and reduce bill-of-materials for portable and edge computing applications.
FAQ
What is the primary target processor family for the MC32PF1550A1EPR2?
The MC32PF1550A1EPR2 is preprogrammed for i.MX 6UL and i.MX 6ULL application processors, providing optimized power sequencing, DDR3L memory support, and integrated battery charging. Its OTP configuration matches the default power tree requirements of these SoCs, including core (SW1), digital (SW2), and I/O (SW3) rail voltages.
Does the MC32PF1550A1EPR2 support dynamic voltage scaling (DVS)?
Yes, the MC32PF1550A1EPR2 supports DVS on SW1 and SW2 buck converters via I²C commands, enabling real-time adjustment of output voltage to match CPU load states. This feature is implemented in hardware and does not require host firmware intervention beyond register writes, making it ideal for Linux-based DVFS frameworks.
How is battery charging configured on the MC32PF1550A1EPR2?
Battery charging parameters-including constant-current limit (100–1000 mA), constant-voltage setpoint (3.5–4.44 V), and termination current (5–50 mA)-are programmed into OTP memory during manufacturing. The MC32PF1550A1EPR2 executes these settings autonomously, with JEITA temperature profiling enabled by default using the THM pin and internal thermistor bias (INT2P7).
What thermal performance can be expected from the MC32PF1550A1EPR2 in a six-layer PCB?
In a six-layer board (2s4p stackup), the MC32PF1550A1EPR2 achieves a junction-to-ambient thermal resistance (RΘJA) of 20.6 °C/W under natural convection. With proper EPAD grounding and 1-in² copper pour, the device sustains full 1.0 A buck loads continuously at 105 °C ambient without thermal throttling.
Is the MC32PF1550A1EPR2 pin-compatible with other PF1550 variants?
Yes, all PF1550 variants-including MC32PF1550A0EP through A9EP and MC34PF1550A0EP through A9EP-share identical 40-pin QFN packaging and pinout. The only differences are OTP programming content and temperature grade qualification; no PCB redesign is needed when migrating between MC32PF1550A1EPR2 and MC34PF1550A1EPR2.
MC32PF1550A1EPR2 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:
- 3.8V ~ 7V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (5x5)
MC32PF1550A1EPR2 FAQ
1.How can I place an order for MC32PF1550A1EPR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC32PF1550A1EPR2 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 MC32PF1550A1EPR2 reliable?
The price and inventory of MC32PF1550A1EPR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC32PF1550A1EPR2 is usually 5 days.
3.What payment methods are accepted for MC32PF1550A1EPR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC32PF1550A1EPR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC32PF1550A1EPR2?
MC32PF1550A1EPR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC32PF1550A1EPR2 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 MC32PF1550A1EPR2?
For technical support, including MC32PF1550A1EPR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC32PF1550A1EPR2 requirements.
6.How does Aetrix verify that MC32PF1550A1EPR2 is sourced from the original manufacturer or authorized distributors?
All MC32PF1550A1EPR2 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 MC32PF1550A1EPR2 meets industry standards.
7.What is the process for return or replacement of MC32PF1550A1EPR2?
All MC32PF1550A1EPR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC32PF1550A1EPR2, 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 MC32PF1550A1EPR2 part is unused and in its original packaging.
Return procedure for MC32PF1550A1EPR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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