NXP Semiconductors MC32PF4210A1ESR2

Overview

MC32PF4210A1ESR2 from NXP Semiconductors is a 14-channel programmable PMIC optimized for i.MX 8M-based audio/video systems, integrating six buck converters (including SW1A/B/C, SW2, SW3A/B, SW4), six LDOs (VGEN1–VGEN6), a 5.0 V boost regulator (SWBST), DDR termination reference (VREFDDR), and coin cell charger with RTC supply. It delivers up to 4.5 A on SW1A/B in combined mode and supports dynamic voltage scaling for processor core rails.

For engineers reviewing the MC32PF4210A1ESR2 datasheet, MC32PF4210A1ESR2 pinout, MC32PF4210A1ESR2 application, or MC32PF4210A1ESR2 equivalent, key selection criteria include OTP-programmable power sequencing, I²C-configurable rail voltages and timing, thermal protection thresholds (110–130 °C), and compatibility with consumer-grade i.MX 8M evaluation platforms like MCIMX8M-EVK.

Technical Context

The MC32PF4210A1ESR2 implements a fully integrated, OTP-configurable power architecture with independent control logic for each buck/LDO channel, enabling precise startup sequencing, dynamic voltage scaling (DVS), and fault-aware power state transitions. Its internal 16 MHz RC oscillator and 32 kHz clock support real-time control without external timing components.

It features dual-phase capability on SW1 and SW3 regulators, DDR tracking mode on SW4, and programmable OCP with interrupt reporting. The VSNVS output provides selectable 1.0/1.1/1.2/1.3/1.5/1.8/3.0 V SNVS supply at 1.5 mA, powered either from VIN or coin cell (LICELL), ensuring always-on system functionality during main supply interruption.

Key Specifications

Pinout & Package

MC32PF4210A1ESR2 uses a 56-pin QFN package (8 mm × 8 mm, 0.5 mm pitch, wettable flank). The exposed pad (EP) serves as ground return for buck regulators and must be connected to inner/external ground planes via multiple vias for thermal dissipation and EMI control.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PMIC applications.

Compared with MC32PF4210A1ESR2, MC34PF4210A4ES offers extended thermal range without functional or software changes, while PF8100A1ES delivers improved efficiency and richer telemetry but requires full hardware and firmware redesign.

Availability

MC32PF4210A1ESR2 is available at Aetrix Electronics and suitable for OTT STB, wireless audio, and voice recognition assistant applications requiring stable component supply across consumer product lifecycles.

Supply support for MC32PF4210A1ESR2 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 consumer applications, with over 40 years of analog and mixed-signal IP expertise.

The PF4210 product line was designed specifically to address power architecture complexity in i.MX 8M-based multimedia edge devices, emphasizing configurability, low standby power, and DDR memory interface compliance.

FAQ

What is the operating temperature range for MC32PF4210A1ESR2?

The MC32PF4210A1ESR2 is rated for 0 °C to 85 °C ambient operation, making it suitable for consumer audio/video equipment such as OTT set-top boxes and smart speakers. This range aligns with the A1 OTP configuration variant and matches the MCIMX8M-EVK reference design requirements. Thermal protection activates at 130 °C junction temperature to safeguard against sustained overload conditions.

Does MC32PF4210A1ESR2 support DDR4 memory termination?

Yes, MC32PF4210A1ESR2 supports DDR4 termination through its VREFDDR output (0.6–0.9 V ±1.5%) and SW4's VTT tracking mode, which delivers 50% of SW3A's output voltage. This eliminates the need for external DDR termination ICs in i.MX 8M-based designs using LPDDR4 or DDR4 memory interfaces, reducing board area and component count.

How is the power-up sequence configured on MC32PF4210A1ESR2?

The MC32PF4210A1ESR2 uses on-chip one-time programmable (OTP) memory to store factory-configured startup sequences, including rail enable order, voltage levels, and timing delays. This eliminates runtime I²C initialization overhead and ensures deterministic boot behavior. Custom sequences can be programmed pre-deployment using NXP's programming tools and the A0 variant.

Can MC32PF4210A1ESR2 operate from a coin cell alone?

Yes, MC32PF4210A1ESR2 supports coin cell-only operation via the LICELL pin (1.8–3.3 V), powering the VSNVS domain at 1.5 mA for SNVS/SRTC retention. In this mode, quiescent current drops to 4.0 µA typical, enabling multi-year RTC backup. However, all switching regulators and LDOs except VSNVS remain disabled until VIN is applied.

What I²C address does MC32PF4210A1ESR2 use by default?

The MC32PF4210A1ESR2 defaults to I²C slave address 0x48 (7-bit), configurable via OTP to 0x4A or 0x4C to avoid bus conflicts in multi-PMIC systems. Address selection is fixed at power-on and cannot be changed dynamically; the SCL/SDA pins operate at 3.3 V logic levels with open-drain drive strength compliant with standard I²C fast-mode specifications.