NXP Semiconductors MC34PF3001A3EP

Overview

MC34PF3001A3EP from NXP Semiconductors is a pre-programmed Power Management IC (PMIC) optimized for i.MX 6 SoloX processors with DDR3L memory, delivering three buck regulators (SW1: 2.75 A, SW2: 1.25 A, SW3: 1.5 A) and seven LDOs-including VCC_SD (100 mA, dual-voltage SD card support), V33 (350 mA), and VSNVS (1.0 mA RTC supply)-in a 48-pin QFN 7.0 mm × 7.0 mm wettable flank package. It enables full power sequencing for industrial embedded systems requiring stable multi-rail operation.

For engineers reviewing the MC34PF3001A3EP datasheet, MC34PF3001A3EP pinout, MC34PF3001A3EP application, or MC34PF3001A3EP equivalent, key selection considerations include its fixed OTP startup sequence (SW1=1.375 V, SW2=3.3 V, SW3=1.35 V), I²C programmability, -40 °C to 105 °C industrial temperature rating, and integrated coin cell charger for battery-backed memory retention.

Technical Context

The MC34PF3001A3EP implements a fixed-OTP + I²C hybrid control architecture: startup timing, voltage levels, and sequencing are hard-coded in one-time-programmable memory (e.g., SW1_SEQ=2, VCC_SD_SEQ=5), while runtime adjustments-including dynamic voltage scaling (DVS), switching mode (PWM/PFM/APS), and fault register reads-are handled via I²C interface (default address 0x08). Its internal 16 MHz trimmed oscillator governs regulator switching frequency (2.0 MHz), while a 32 kHz clock manages startup and low-power timing.

Power delivery is partitioned across three independent buck stages and seven LDOs, each with dedicated input/feedback/switch-node pins and distinct ground references (GNDREF1, GNDREF2, GNDREF). The VSNVS rail operates as either an LDO or bypass switch for i.MX SNVS domain, and the optional VPWR front-end LDO supports input voltages up to 5.5 V using an external P-MOSFET controlled by LDOG.

Key Specifications

Pinout & Package

MC34PF3001A3EP uses a 48-pin QFN 7.0 mm × 7.0 mm wettable flank (WF-type) package (98ASA00933D), with exposed thermal pad (EP) tied to ground for enhanced thermal dissipation. Pin functions are validated per NXP PF3001 datasheet Rev. 5.1, Table 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC34PF3001A4EP and MC34PF3001A7EP, the MC34PF3001A3EP uniquely matches the i.MX 6SX + DDR3L power map with SW1=1.375 V (VDD_ARM), SW2=3.3 V (NVCC_DRAM_CKE), and VCC_SD_SEQ=5-ensuring correct memory initialization timing and signal integrity without firmware rework.

Availability

MC34PF3001A3EP is available at Aetrix Electronics and suitable for industrial HMI panels, secure POS terminals, and medical patient monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC34PF3001A3EP 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, with deep expertise in ARM-based application processors and associated power management.

The PF3001 product line was designed specifically to deliver fully integrated, pre-validated power solutions for NXP's i.MX 6 and i.MX 7 series processors-reducing design risk, accelerating time-to-market, and eliminating external sequencing logic.

FAQ

What is the operating temperature range of the MC34PF3001A3EP?

The MC34PF3001A3EP is rated for industrial operation from -40 °C to +105 °C, making it suitable for deployment in harsh environments such as factory floors, outdoor kiosks, and medical equipment enclosures where ambient temperatures exceed consumer-grade limits. This rating is confirmed in Table 1 of the PF3001 datasheet Rev. 5.1 and applies specifically to the ~EP suffix variant.

How does the MC34PF3001A3EP support DDR3L memory on the i.MX 6SX processor?

The MC34PF3001A3EP supports DDR3L memory through its OTP-configured A3 startup profile: SW2 defaults to 3.3 V (for NVCC_DRAM_CKE) and VCC_SD defaults to 3.3 V/1.85 V (for SDIO interface), while SW1 delivers 1.375 V to the i.MX 6SX ARM core. This exact voltage and sequencing alignment-verified in Table 4 of the datasheet-ensures compliant DDR3L initialization timing and signal integrity without external configuration.

Can the MC34PF3001A3EP be used with input voltages above 4.5 V?

Yes, the MC34PF3001A3EP supports input voltages up to 5.5 V via its optional VPWR front-end LDO, which uses the LDOG pin to drive an external P-channel MOSFET (e.g., FDMA908PZ). When VPWR is connected to >4.5 V, the internal LDO regulates VIN to ≤4.5 V for safe operation of all downstream regulators. This capability is documented in Section 8.3.5 of the PF3001 datasheet Rev. 5.1.

What is the function of the SD_VSEL pin on the MC34PF3001A3EP?

The SD_VSEL pin on the MC34PF3001A3EP selects the output voltage range of the VCC_SD regulator: logic low sets 2.85–3.30 V for standard SD cards, while logic high sets 1.80–1.85 V for UHS-I SD cards. This hardware-controlled selection eliminates software overhead and ensures immediate compliance with JEDEC SD physical layer specifications upon power-up.

Does the MC34PF3001A3EP include battery backup capability?

Yes, the MC34PF3001A3EP integrates a dedicated coin cell charger and VSNVS regulator that provides 3.0 V at 1.0 mA to the i.MX processor's Secure Non-Volatile Storage (SNVS) domain. The LICELL pin accepts a CR1220 or similar coin cell, enabling continuous RTC operation and SRAM retention during main power loss-fully implemented without external components.