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NXP Semiconductors MC32PF1550A9EP
- Part No.:
- MC32PF1550A9EP
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MC32PF1550A9EP.pdf
- Description:
- POWER MANAGEMENT IC 3 BUCK REGS
- Quantity:
- Payment:
- Shipping:
Inventory:4,278
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Product details
Overview
MC32PF1550A9EP from NXP Semiconductors is a power management IC (PMIC) engineered for i.MX RT1050 application processors in consumer-grade portable and IoT systems. It integrates three 1.0 A buck converters, three LDOs (300 mA/400 mA/300 mA), a linear battery charger (100–1000 mA), RTC supply (3.0 V/2.0 mA), and DDR reference voltage (0.5–0.9 V/10 mA), enabling full-system power delivery for battery-powered edge devices.
For engineers reviewing the MC32PF1550A9EP datasheet, MC32PF1550A9EP pinout, MC32PF1550A9EP application, or MC32PF1550A9EP equivalent, this page delivers verified specifications, thermal ratings (−40 °C to 85 °C), I²C-configurable startup sequences, JEITA-compliant thermistor monitoring, and OTP-programmed i.MX RT1050 support - critical for low-power wearable and smart-home design validation.
Technical Context
The MC32PF1550A9EP implements a multi-rail PMIC architecture with independent DVS-capable buck regulators (SW1/SW2) for core voltage scaling, fixed-output SW3 for I/O rails, and integrated power-path management that prioritizes VSYS from USB input or battery. Its internal 32 kHz/16 MHz clocks, watchdog timer (80 s ±20%), and OTP memory enable deterministic boot sequencing and system-level fault recovery without host intervention.
It supports dual-input operation: VBUSIN accepts 4.1–6.0 V (USB/adapter) with 22 V transient withstand, while VBATT handles 2.7–4.8 V single-cell Li-ion. The VSYS regulator sustains up to 3.0 A discharge overcurrent protection, and the CHGB LED driver provides programmable status indication (0.5–256 Hz, 10–100% duty cycle) with 6.0 mA accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40 °C to 85 °C - qualified for consumer portable electronics with extended thermal margin |
| Buck Converters | SW1/SW2: 0.6–1.3875 V @ 1.0 A with DVS; SW3: 1.8–3.3 V @ 1.0 A - powers ARM cores, memory I/O, and peripherals |
| LDO Outputs | LDO1/LDO3: 0.75–3.3 V @ 300 mA w/ load switch; LDO2: 1.8–3.3 V @ 400 mA - supplies sensors, audio codecs, and interface logic |
| Battery Charger | Linear Li-ion charging: 100–1000 mA CC, 3.5–4.44 V CV, JEITA temp sensing, 5–50 mA termination - enables safe, standards-compliant charging |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) compatible - allows runtime voltage adjustment, event reporting, and OTP configuration |
| Package | 40-pin QFN 5.0 mm × 5.0 mm with exposed pad - optimized for compact PCB layout and thermal dissipation (RΘJB = 8.8 °C/W) |
| VREFDDR | 0.5–0.9 V @ 10 mA - precision DDR memory reference voltage generation with VINREFDDR/2 division |
Pinout & Package
MC32PF1550A9EP uses a 40-pin QFN (5.0 mm × 5.0 mm, 0.5 mm pitch) with exposed thermal pad (EPAD, Pin 41) requiring PCB ground connection. Pin functions are validated per NXP PF1550 datasheet Rev. 7 (2021), Figure 4 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1FB (Pin 27) | Buck 1 feedback input | Enables precise output regulation via external resistor divider; supports dynamic voltage scaling |
| VBUSIN (Pin 37) | Charger input | Accepts 4.1–6.0 V USB/adapter input; withstands 22 V transients for robust front-end protection |
| VSYS (Pin 35) | Main PMIC input/output rail | Power-path output sourced from VBUSIN or VBATT; powers internal regulators and system loads up to 3.0 A |
| CHGB (Pin 40) | Charger LED driver sink | Drives external LED anode-to-VSYS; supports programmable blink frequency, duty cycle, and ramp timing |
| INTB (Pin 9) | Interrupt open-drain output | Signals fault conditions (thermal, overcurrent, charge completion) to host processor via pull-up |
| EPAD (Pin 41) | Thermal pad | Primary heat dissipation path; must be soldered to solid PCB ground plane for RΘJB = 8.8 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| OTP-configurable startup sequence | User-defined power-on timing, soft-start delays, and shutdown order stored permanently - eliminates external sequencing ICs |
| DVS on SW1/SW2 | Real-time core voltage adjustment via I²C during processor load changes - reduces dynamic power by >30% in burst-mode operation |
| JEITA-compliant battery charging | Integrated thermistor monitoring with −10 °C to 60 °C thresholds and 0.5–5.0 °C hysteresis - ensures safety across environmental extremes |
| VSNVS 3.0 V RTC supply | Always-on 3.0 V/2.0 mA rail with coin-cell backup support - maintains real-time clock and SRAM retention during main power loss |
| VSYS transient robustness | Withstands 1.0 A/µs load steps with <850 mV peak-to-peak deviation - stabilizes system power during sudden peripheral activation |
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: MC32PF1550A9EP supplies regulated voltages to i.MX RT1050 MCU core (SW1), DDR memory (VREFDDR), display interface (SW3), and sensor LDOs (LDO2/LDO3). Use Value: Integrated charger with JEITA compliance enables safe overnight charging; ultra-low quiescent current (<1.5 µA in low-power mode) extends battery life beyond 7 days. |
Use Scenario: Edge gateway aggregating Zigbee/Z-Wave sensor data in factory environments with intermittent 5 V USB power. IC Role / Device Role / Timing Role: MC32PF1550A9EP manages dual-input power (VBUSIN/VSYS), powers i.MX RT1050 real-time processing, and maintains RTC via VSNVS during brownouts. Use Value: VSYS transient tolerance and 22 V VBUSIN withstand prevent resets during ESD events; industrial temp range (−40 °C to 85 °C) ensures reliability in uncontrolled enclosures. |
| Home Automation Hubs | Wireless Game Controllers |
|
Use Scenario: Voice-controlled smart speaker hub with Wi-Fi, mic array, and local inference running on i.MX RT1050. IC Role / Device Role / Timing Role: MC32PF1550A9EP delivers 1.1 V core (SW1), 3.3 V I/O (SW3), 1.8 V codec supply (LDO2), and 3.0 V RTC (VSNVS) with coordinated power sequencing. Use Value: OTP-programmed startup eliminates boot firmware dependencies; USBPHY LDO (60 mA, 55 dB PSRR) cleanly powers USB PHY without noise coupling into audio paths. |
Use Scenario: Low-latency Bluetooth gaming controller with motion sensors, haptic feedback, and RGB LED indicators. IC Role / Device Role / Timing Role: MC32PF1550A9EP powers ARM Cortex-M7 core (SW1), IMU interface (LDO1), haptic driver (LDO2), and status LEDs (CHGB + USBPHY). Use Value: Programmable LED driver (0.5–256 Hz, 6 mA accuracy) enables precise battery-level indication; 1.0 µA ULP quiescent current extends idle time between game sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPF5020A-A0 | Single 1.2 A buck + 2×300 mA LDOs; no battery charger or VREFDDR; SPI interface only | Suitable for non-battery systems with simpler rail count; lacks JEITA charging and DDR reference | Select when cost-sensitive designs omit battery management and require minimal footprint |
| TPS650860 | 3×2 A bucks + 4×LDOs + fuel gauge; supports 2-cell Li-ion; I²C + SMBus; larger 48-pin QFN | Targets higher-power i.MX 8M platforms; includes battery telemetry not present in MC32PF1550A9EP | Choose for multi-cell battery systems needing fuel gauging and higher current capability |
Compared with MPF5020A-A0 and TPS650860, MC32PF1550A9EP uniquely balances i.MX RT1050-specific OTP configuration, integrated DDR reference, and consumer-grade thermal rating - making it optimal for space-constrained, single-cell battery IoT endpoints where sequencing fidelity and JEITA compliance are mandatory.
Availability
MC32PF1550A9EP is available at Aetrix Electronics and suitable for smart wearables, home automation hubs, and wireless game controllers requiring stable component supply with guaranteed long-term sourcing and consistent electrical binning.
Supply support for MC32PF1550A9EP 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 designed specifically to deliver complete, OTP-configurable power solutions for NXP's i.MX family - reducing design complexity for battery-powered edge devices while ensuring compatibility with real-time processor requirements.
FAQ
What is the operating temperature range of the MC32PF1550A9EP?
The MC32PF1550A9EP is rated for −40 °C to 85 °C ambient operation, qualifying it for consumer portable electronics including wearables and smart-home devices. This range is explicitly defined in Table 1 of the PF1550 datasheet Rev. 7 for part number MC32PF1550A9EP, distinguishing it from industrial-grade variants like MC34PF1550A9EP (−40 °C to 105 °C).
Does the MC32PF1550A9EP support dynamic voltage scaling (DVS)?
Yes, the MC32PF1550A9EP supports DVS on buck regulators SW1 and SW2, allowing real-time adjustment of output voltage (0.6–1.3875 V in 12.5 mV steps) via I²C commands. This feature is confirmed in Section 1.1 "Features and benefits" and electrical specs for SW1/SW2 in the datasheet, enabling power optimization for i.MX RT1050 CPU frequency scaling.
What battery charging parameters are programmable on the MC32PF1550A9EP?
The MC32PF1550A9EP supports programmable charge voltage (3.5–4.44 V), charge current (100–1000 mA), and termination current (5–50 mA) - all stored in OTP memory. These settings are configured via I²C registers and persist across power cycles, as detailed in Tables 10 and 85 of the PF1550 datasheet Rev. 7.
How does the MC32PF1550A9EP handle power-path management between USB and battery?
The MC32PF1550A9EP implements automatic power-path management: VSYS is sourced from VBUSIN when present (with adaptive DPM down to 4.4 V), otherwise from VBATT. It includes integrated 50 mΩ BATFET, battery supplement mode (VSYS < VBATT by 10–75 mV), and 3.0 A discharge overcurrent protection - all verified in Sections 1.1 and 5.3.1 of the datasheet.
Is the MC32PF1550A9EP pin-compatible with other PF1550 variants?
Yes, all PF1550 variants - including MC32PF1550A9EP - share identical 40-pin QFN packaging and pinout per Figure 4 and Table 2 of the datasheet. Differences reside solely in OTP programming (e.g., i.MX RT1050 configuration for A9EP) and temperature grading, not mechanical or electrical interface.
MC32PF1550A9EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- 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)
MC32PF1550A9EP FAQ
1.How can I place an order for MC32PF1550A9EP through Aetrix?
Please submit a Request for Quotation (RFQ) for MC32PF1550A9EP 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 MC32PF1550A9EP reliable?
The price and inventory of MC32PF1550A9EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC32PF1550A9EP is usually 5 days.
3.What payment methods are accepted for MC32PF1550A9EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC32PF1550A9EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC32PF1550A9EP?
MC32PF1550A9EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC32PF1550A9EP 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 MC32PF1550A9EP?
For technical support, including MC32PF1550A9EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC32PF1550A9EP requirements.
6.How does Aetrix verify that MC32PF1550A9EP is sourced from the original manufacturer or authorized distributors?
All MC32PF1550A9EP 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 MC32PF1550A9EP meets industry standards.
7.What is the process for return or replacement of MC32PF1550A9EP?
All MC32PF1550A9EP units undergo pre-shipment inspection (PSI). If there is an issue with MC32PF1550A9EP, 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 MC32PF1550A9EP part is unused and in its original packaging.
Return procedure for MC32PF1550A9EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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