NXP Semiconductors MC34PF1510A0EPR2

Overview

MC34PF1510A0EPR2 from NXP Semiconductors is a power management IC (PMIC) engineered for i.MX 6UL/6ULL/7ULP application processors in industrial IoT and wearable systems. It integrates three 1.0 A buck converters (SW1–SW3), three LDOs (LDO1–LDO3), VSNVS RTC supply (3.0 V/2.0 mA), DDR reference (VREFDDR, 0.5–0.9 V/10 mA), and I²C programmable control - delivering full-system power for processors, memory, and peripherals.

For engineers reviewing the MC34PF1510A0EPR2 datasheet, MC34PF1510A0EPR2 pinout, MC34PF1510A0EPR2 application, or MC34PF1510A0EPR2 equivalent, key selection criteria include its −40 °C to 105 °C industrial temperature rating, OTP-configurable startup/power-down sequences, dynamic voltage scaling on SW1/SW2, 1.0 µA quiescent current in ULP mode, and QFN40 5.0 mm × 5.0 mm package with exposed thermal pad.

Technical Context

The MC34PF1510A0EPR2 implements a front-end LDO (1500 mA, up to 6.5 V input) feeding VSYS, which powers three synchronous buck regulators with internal MOSFETs and digital soft-start. SW1 and SW2 support dynamic voltage scaling across 12.5 mV steps (0.6–1.3875 V) or variable steps (1.1–3.3 V); SW3 provides fixed 1.8–3.3 V outputs without DVS.

Its digital core includes OTP memory for user-programmable regulator voltages, sequencing, timing, and sleep/standby/off modes. The I²C interface (SCL/SDA, 1.7–3.6 V tolerant) enables real-time configuration of all regulators, while dedicated pins (PWRON, STANDBY, ONKEY, WDI, INTB, RESETBMCU) support processor-level power state coordination and watchdog supervision.

Key Specifications

Pinout & Package

MC34PF1510A0EPR2 uses a 40-pin QFN package (98ASA00913D) measuring 5.0 mm × 5.0 mm with an exposed thermal pad (EPAD, Pin 41) connected to ground for thermal management. Pin functions are validated per NXP's official pinout diagram and description table (Rev. 4, March 2021).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPF1510A0EPR2, MC34PF1510A0EPR2 adds 20 °C higher max junction temperature and extended thermal derating; versus TPS65023RGZR, it provides i.MX-optimized features including VREFDDR, VSNVS, and OTP-based startup sequence - reducing BOM count and firmware complexity in NXP-based designs.

Availability

MC34PF1510A0EPR2 is available at Aetrix Electronics and suitable for industrial IoT gateways, smart wearables, and embedded POS terminals requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC34PF1510A0EPR2 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in ARM-based application processors and power management.

The PF1510 product line was designed specifically to simplify power architecture for NXP's i.MX 6UL/6ULL/7ULP processors - integrating all essential rails, sequencing, and memory interface support into a single QFN package for space-constrained, battery-sensitive edge devices.

FAQ

What is the maximum input voltage the MC34PF1510A0EPR2 can withstand on its VIN pin?

The MC34PF1510A0EPR2 VIN pin is rated to withstand transient and DC inputs up to +22 V, as specified in the absolute maximum ratings table. This allows direct connection to unregulated 12 V or 24 V industrial supplies with minimal external protection, though normal operating input is 4.1–6.0 V. The front-end LDO regulates this down to VSYS, ensuring safe internal operation.

Does the MC34PF1510A0EPR2 support dynamic voltage scaling (DVS) on all three buck converters?

No, the MC34PF1510A0EPR2 supports DVS only on SW1 and SW2, with 12.5 mV step resolution across 0.6–1.3875 V. SW3 operates in fixed-output mode (1.8–3.3 V in 100 mV steps) without DVS capability. This architecture aligns with typical i.MX processor requirements where CPU core (SW1) and GPU/I/O (SW2) benefit from voltage scaling, while memory interfaces (SW3) require stable, non-varying rails.

How is the VREFDDR output configured for different DDR memory types on the MC34PF1510A0EPR2?

The MC34PF1510A0EPR2 VREFDDR output is programmable from 0.5 V to 0.9 V in 25 mV steps via OTP configuration, covering LPDDR2, LPDDR3, and LPDDR4 termination requirements. Its accuracy is ±2.0 % in normal power mode, ensuring compliance with JEDEC DDR specifications. The VREFDDR rail draws up to 10 mA and must be bypassed with a 1.0 µF capacitor at the output pin (Pin 21) for stability.

Can the MC34PF1510A0EPR2 operate without an external crystal or oscillator?

Yes, the MC34PF1510A0EPR2 contains fully integrated oscillator circuitry and requires no external crystal or clock source. It generates internal 16 kHz and 32 kHz clocks for watchdog, RTC, and power-state timing functions. These clocks drive the internal state machine and do not require external components - simplifying design and reducing BOM cost compared to PMICs needing external timing elements.

What is the purpose of the LICELL pin on the MC34PF1510A0EPR2, and how is it used?

The LICELL pin on the MC34PF1510A0EPR2 serves as a bidirectional coin-cell interface: it charges a backup battery (e.g., CR1220) during main power operation and supplies the VSNVS 3.0 V RTC rail when main power is lost. It includes internal charge control circuitry and requires only a 0.1 µF bypass capacitor. This eliminates the need for external battery management ICs in always-on timekeeping applications.