NXP Semiconductors MC34708VM

Overview

MC34708VM from NXP Semiconductors (formerly Freescale) is a highly integrated Power Management IC (PMIC) engineered for i.MX50 and i.MX53 application processors. It delivers six multi-mode buck regulators, one boost regulator (380 mA), eight LDOs, 10-bit ADC, RTC with coin-cell backup/charging, SPI/I²C interface, and USB/UART/audio switching. It powers core logic, DDR memory, peripherals, and USB OTG in portable navigation and smart mobile devices.

For engineers reviewing the MC34708VM datasheet, MC34708VM pinout, MC34708VM application, or MC34708VM equivalent, this page provides verified package mapping (206-ball MAPBGA, 13×13 mm, 0.8 mm pitch), confirmed regulator count and output capabilities, validated USB switch functionality, real-time clock architecture with crystal oscillator support, and accurate thermal and electrical specifications per Rev. 11.0 datasheet.

Technical Context

The MC34708VM implements a hierarchical power tree with dual-phase DDR buck (SW4), dual-phase core buck (SW1A/SW1B), and dedicated regulators for VPLL, VSRTC, VREFDDR, and VUSB2. Its startup sequencer enforces strict power-up timing across 12 regulated outputs, coordinated via PUMS control inputs and internal state machine.

It integrates SMARTMOS technology enabling high-efficiency switching (up to 95% at full load), precision voltage regulation (±1.5% typical output accuracy), and comprehensive monitoring including battery current sensing (BATTISNSP/N), die temperature detection, and coulomb counter-ready pins (though coulomb counting is disabled in this revision).

Key Specifications

Pinout & Package

MC34708VM uses a 206-ball MAPBGA package (13.0 × 13.0 mm, 0.8 mm pitch), optimized for thermal dissipation and board-level routing density in space-constrained portable designs. Ballmap follows JEDEC MO-270AB standard with defined power, ground, and signal ball assignments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC34708VK, MC34708VM offers relaxed PCB layout requirements due to larger 0.8 mm pitch, easing manufacturing yield and test access; compared with PF3000, it retains unique USB/audio/ADC integration essential for cost-sensitive i.MX50/53 designs where backward compatibility and minimal BOM change are priorities.

Availability

MC34708VM is available at Aetrix Electronics and suitable for tablet power architectures, smart mobile device PMUs, portable navigation devices, and embedded automotive infotainment systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MC34708VM 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 deep heritage in ARM-based application processors and power management.

The MC34708VM belongs to NXP's i.MX-optimized PMIC product line, designed specifically to simplify power architecture for Freescale/NXP i.MX50 and i.MX53 application processors in portable and embedded systems.

FAQ

What is the primary function of the MC34708VM in an i.MX53-based system?

The MC34708VM serves as the central power management IC for i.MX53 processors, delivering and sequencing 12 regulated power rails-including dual-phase core (2000 mA), DDR (1000 mA), USB OTG boost (380 mA), and multiple LDOs-while integrating RTC, ADC, USB switching, and system supervision logic. Its design eliminates discrete power components and ensures deterministic boot behavior.

Does the MC34708VM support battery charging functionality?

No-the MC34708VM does not include active battery charging circuitry. Per the Rev. 11.0 datasheet, pins related to charging (e.g., VBUSVIN, CHRGLX, CHRGFB, TRICKLESEL) are marked "NC" or "Charger Not supported." It supports battery monitoring (BATT, BATTISNSP/N) and coin-cell backup/charging for RTC (LICELL), but external charger ICs are required for Li-ion/Li-poly battery management.

What are the key differences between MC34708VM and MC34708VK?

The MC34708VM and MC34708VK share identical silicon functionality and electrical specifications. The sole difference is mechanical: MC34708VM uses a 206-ball MAPBGA package with 13×13 mm body and 0.8 mm pitch, whereas MC34708VK uses the same pin count in an 8×8 mm body with 0.5 mm pitch. Layout, thermal, and assembly considerations differ, but register maps and firmware are fully interchangeable.

Can the MC34708VM generate clocks for both the processor and peripherals?

Yes-the MC34708VM includes a dedicated 32.768 kHz crystal oscillator (XTAL1/XTAL2) and provides two buffered clock outputs: CLK32KMCU (for the i.MX53 processor) and CLK32K (for peripherals). Both outputs are independently controlled and meet timing specifications for real-time clock and low-power subsystem synchronization.

How does the MC34708VM handle power sequencing during system startup?

The MC34708VM implements a hardware-based startup sequencer controlled by five PUMS inputs (PUMS1–PUMS5). These configure the enable order, delay intervals, and dependency relationships among its 12 regulated outputs. Sequencing is autonomous-no software or external controller is needed-and ensures correct voltage ramping and stabilization before releasing RESETBMCU to the processor.