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NXP Semiconductors MC34708VMR2
- Part No.:
- MC34708VMR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 206-LFBGA
- Datasheet:
-
MC34708VMR2.pdf
- Description:
- IC POWER MANAGEMENT 206MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,782
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Product details
Overview
MC34708VMR2 from NXP Semiconductors (formerly Freescale) is a Power Management Integrated Circuit (PMIC) engineered for i.MX50 and i.MX53 application processors. It integrates six multi-mode buck regulators, one boost regulator (380 mA), eight LDOs, 10-bit ADC, RTC with coin-cell backup/charger, SPI/I²C interface, and USB/Audio/UART switching logic. It delivers precise power sequencing and thermal-aware regulation for portable Linux-based embedded systems.
For engineers reviewing the MC34708VMR2 datasheet, MC34708VMR2 pinout, MC34708VMR2 application, or MC34708VMR2 equivalent, key selection criteria include its 206-ball MAPBGA (13 × 13 mm, 0.8 mm pitch) package, support for DDR dual-phase buck (SW4), VREFDDR generation, and integrated SRTC clock outputs (CLK32KMCU, CLK32KVCC, CLK32K).
Technical Context
The MC34708VMR2 implements a hierarchical power tree with five configurable buck switchers (SW1–SW5), including SW1 (2 A dual-phase core), SW4 (1 A dual-phase DDR), and SWBST (380 mA boost for USB OTG). Its startup sequencer enforces strict voltage ramping order across VCORE, VCOREDIG, VPLL, VREFDDR, and peripheral rails.
Control is executed via SPI or I²C with register-mapped configuration of modes (DVS, auto-skip, forced PWM), powergood monitoring (SW1PWGD, SW2PWGD), interrupt handling (INT), and real-time battery/thermal sensing using its 10-bit ADC with 16-channel mux (ADIN9–ADIN15, TSY1/TSY2, TSX1/TSX2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Buck Regulators | 6 independent switchers: SW1 (2 A dual-phase core), SW2 (1 A memory), SW3 (500 mA peripherals), SW4 (1 A dual-phase DDR), SW5 (1 A I/O), SWBST (380 mA USB OTG boost) |
| LDO Count | 8 regulators including VPLL (50 mA), VREFDDR (10 mA), VDAC (250 mA), VUSB2 (350 mA), VGEN1/VGEN2 (250 mA each), VSRTC, VALWAYS |
| ADC Resolution | 10-bit SAR ADC with 16 selectable inputs (battery, thermistor, touch screen, GPIO monitoring) |
| RTC Support | Integrated 32.768 kHz crystal oscillator (XTAL1/XTAL2), SRTC clock outputs (CLK32KMCU, CLK32KVCC, CLK32K), coin-cell backup/charging (LICELL) |
| Interface | SPI (4-wire, CS/CLK/MOSI/MISO) and I²C (optional, shared pins) for full register access and dynamic rail control |
| Package | 206-ball MAPBGA, 13.0 × 13.0 mm, 0.8 mm pitch, Pb-free (VM suffix) |
| Operating Temp | −40 °C to +85 °C ambient, qualified for industrial portable applications |
Pinout & Package
MC34708VMR2 uses a 206-ball MAPBGA package (13 × 13 mm, 0.8 mm pitch), identical in footprint to the VM-suffix variant documented in Freescale document 98ASA00299D. Ballmap follows JEDEC MO-275AC standard with defined power, ground, analog, digital, and peripheral signal groupings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1IN / SW1ALX / SW1BLX | Dual-phase core buck input & switch nodes | Accepts BP input; drives external high-side FETs for 2 A VCORE with DVS support |
| SW4AIN / SW4BIN / SW4AFB / SW4BFB | Dual-phase DDR buck input & feedback | Configurable for DDR termination supply (VREFDDR) with independent phase control and current sensing |
| VREFDDR / VHALF / VINREFDDR | DDR reference generation block | Provides precise 0.5 × VDDQ output (e.g., 0.75 V from 1.5 V) for DDR2/DDR3 I/O termination |
| CLK32KMCU / CLK32KVCC / CLK32K | RTC clock distribution outputs | Three buffered 32.768 kHz outputs: dedicated to processor, system peripherals, and external circuits |
| LICELL / XTAL1 / XTAL2 / GNDRTC | Real-time clock subsystem | Supports coin-cell backup (CR1220), crystal oscillation, and RTC power domain isolation |
| DM / DP / DPLUS / DMINUS / VBUS / VUSB | USB OTG transceiver interface | Enables mini/micro-USB connector sharing between host/device roles with VBUS detection and regulation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase core buck (SW1) | Delivers up to 2 A at VCORE with dynamic voltage scaling (DVS) for i.MX53 CPU frequency optimization |
| Dual-phase DDR buck (SW4) | Generates tightly regulated VREFDDR (0.5 × VDDQ) with phase interleaving to reduce ripple and EMI |
| Integrated SRTC clock tree | Three independent 32.768 kHz outputs eliminate need for external buffers or clock fanout ICs |
| USB/Audio/UART switching | Hardware-multiplexed DP/DM/DPLUS/DMINUS paths enable single mini-USB connector for data, audio, and serial debug |
| Thermal-aware ADC monitoring | 10-bit ADC reads BPTHERM, battery sense (BATTISNSP/N), and touch screen (TSX1/TSY1) for closed-loop thermal management |
| Configurable power-up sequencing | PUMS1–PUMS5 pins define boot-order priority across 12 regulated outputs without firmware intervention |
Applications
| Smart Mobile Devices | Tablets |
|---|---|
Use Scenario: Battery-powered Android-based handheld with i.MX53 SoC, touchscreen, stereo audio, and USB OTG capability. IC Role / Device Role / Timing Role: Primary PMIC managing all SoC rails (VCORE, VDDR, VPLL), USB power switching, and RTC timing. Use Value: Single-chip integration reduces BOM count by 12+ discrete regulators and eliminates external clock buffer ICs. | Use Scenario: Industrial tablet with DDR2 memory, resistive touch panel, and extended temperature operation. IC Role / Device Role / Timing Role: Supplies VCORE, VREFDDR, and memory rails while providing calibrated ADC readings for battery fuel gauging and thermal throttling. Use Value: Dual-phase SW4 ensures low-noise VREFDDR critical for DDR2 signal integrity; ADC supports accurate battery state-of-charge estimation. |
| Portable Navigation Devices | Connected Embedded Terminals |
Use Scenario: GPS-enabled vehicle navigation unit with audio alerts, micro-USB charging, and wide-temp LCD backlight control. IC Role / Device Role / Timing Role: Powers i.MX50 processor, manages USB OTG host mode for map updates, and drives LED backlight via PWM1/PWM2. Use Value: Integrated boost regulator (SWBST) enables USB OTG host functionality without external boost IC; PWM outputs directly drive LED strings. | Use Scenario: Ruggedized point-of-sale terminal with barcode scanner, speaker, microphone, and secure boot requirements. IC Role / Device Role / Timing Role: Provides always-on VALWAYS rail, secure RTC time-stamping (LICELL-backed), and isolated ADC channels for tamper detection. Use Value: Coin-cell-backed RTC maintains audit logs during main power loss; isolated ADC inputs detect enclosure intrusion or temperature anomalies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34708VKR2 | Same die, 206-ball MAPBGA (8 × 8 mm, 0.5 mm pitch); lower thermal mass, tighter layout constraints | Better suited for space-constrained designs where board area is premium; slightly reduced thermal dissipation capability | Select VKR2 when PCB real estate is limited and thermal load remains within 8×8 mm package limits. |
| PF0100A0NZF | NXP PF0100: newer i.MX6/i.MX7 PMIC; higher integration (integrated charger, more LDOs), different pinout and register map | Designed for later-generation i.MX SoCs; not pin-compatible; requires full schematic and firmware redesign | Choose PF0100 only for new i.MX6/7 designs; migration from MC34708VMR2 requires hardware and software requalification. |
Compared with MC34708VKR2, the MC34708VMR2 offers greater thermal margin and routing flexibility due to its larger 13×13 mm footprint, while PF0100A0NZF provides enhanced feature set for next-gen platforms but demands complete system redesign.
Availability
MC34708VMR2 is available at Aetrix Electronics and suitable for smart mobile devices, tablets, and portable navigation devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC34708VMR2 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 formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and mobile applications.
The MC34708VMR2 belongs to NXP's i.MX Power Management family, designed specifically to deliver tightly coordinated, low-noise, and thermally optimized power to Freescale/NXP i.MX50 and i.MX53 application processors.
FAQ
What is the primary function of the MC34708VMR2 in an i.MX53-based design?
The MC34708VMR2 serves as the central power management IC for i.MX53 processors, delivering and sequencing all critical voltage rails-including VCORE (dual-phase buck), VREFDDR (dual-phase DDR reference), VPLL, and peripheral supplies-while integrating RTC, ADC, USB switching, and interrupt control. Its design eliminates the need for multiple discrete regulators and timing components in MC34708VMR2-based systems.
Does the MC34708VMR2 support USB On-The-Go functionality?
Yes, the MC34708VMR2 supports USB OTG through its integrated boost regulator (SWBST, 380 mA), VBUS detection circuitry, and hardware-switched DP/DM/DPLUS/DMINUS signal paths. It enables a single mini/micro-USB connector to serve both host and device roles without external multiplexers or level shifters in MC34708VMR2 implementations.
How does the MC34708VMR2 handle power sequencing for i.MX50/53 processors?
The MC34708VMR2 executes fixed, hardware-configurable power-up sequencing via PUMS1–PUMS5 pins and internal startup logic. It asserts RESETBMCU only after VCORE, VCOREDIG, VPLL, and VREFDDR reach regulation, ensuring safe i.MX50/53 boot. Sequencing order and timing are deterministic and do not require firmware initialization in MC34708VMR2 deployments.
Can the MC34708VMR2 generate the DDR reference voltage required by i.MX53?
Yes, the MC34708VMR2 includes a dedicated dual-phase buck regulator (SW4) and associated circuitry (VREFDDR, VHALF, VINREFDDR) to generate a precise, low-noise DDR termination voltage (VREFDDR = 0.5 × VDDQ). This meets i.MX53 DDR2/DDR3 interface specifications without external components in MC34708VMR2 designs.
What RTC capabilities does the MC34708VMR2 provide?
The MC34708VMR2 integrates a full RTC subsystem with 32.768 kHz crystal oscillator (XTAL1/XTAL2), coin-cell backup/charging (LICELL), and three buffered clock outputs (CLK32KMCU, CLK32KVCC, CLK32K). It maintains timekeeping during main power loss and supplies synchronized clocks to the processor, peripherals, and external circuits in MC34708VMR2 applications.
MC34708VMR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 206-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- General Purpose
- Current - Supply:
- -
- Voltage - Supply:
- 1.8V ~ 4.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 206-MAPBGA (13x13)
MC34708VMR2 FAQ
1.How can I place an order for MC34708VMR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34708VMR2 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 MC34708VMR2 reliable?
The price and inventory of MC34708VMR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34708VMR2 is usually 5 days.
3.What payment methods are accepted for MC34708VMR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34708VMR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34708VMR2?
MC34708VMR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34708VMR2 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 MC34708VMR2?
For technical support, including MC34708VMR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34708VMR2 requirements.
6.How does Aetrix verify that MC34708VMR2 is sourced from the original manufacturer or authorized distributors?
All MC34708VMR2 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 MC34708VMR2 meets industry standards.
7.What is the process for return or replacement of MC34708VMR2?
All MC34708VMR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC34708VMR2, 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 MC34708VMR2 part is unused and in its original packaging.
Return procedure for MC34708VMR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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