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NXP Semiconductors MC34VR500V6ES
- Part No.:
- MC34VR500V6ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC34VR500V6ES.pdf
- Description:
- REGULATOR BUCK QUAD WITH UP TO
- Quantity:
- Payment:
- Shipping:
Inventory:260
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Product details
Overview
MC34VR500V6ES from NXP Semiconductors is a multi-output SMARTMOS DC/DC power management IC designed specifically for the LS1024A communications processor. It integrates four buck converters (SW1: 4.5 A, SW2: 2.0 A, SW3: 2.5 A, SW4: 1.0 A VTT-tracking), five LDOs, DDR3L reference generation (REFOUT), and I²C programmable control - delivering complete system power for processor cores, DDR3L memory, and peripherals in compact networking edge devices.
For engineers reviewing the MC34VR500V6ES datasheet, MC34VR500V6ES pinout, MC34VR500V6ES application, or MC34VR500V6ES equivalent, this page provides verified regulator output ranges, thermal protection thresholds (110–130 °C), startup sequencing details per Table 8, VTT tracking behavior for DDR3L termination, and confirmed QFN-EP 56-pin (8×8 mm) package compatibility with LS1024A reference designs.
Technical Context
The MC34VR500V6ES implements a tightly coupled power control logic block with processor interface signals (EN, STBY, PORB, INTB) and event detection for coordinated start-up, standby entry/exit, and fault reporting. Its internal 16 MHz trimmed RC oscillator enables precise timing for PWM switching (configurable up to 2.0 MHz per buck) and register-based sequencing - critical for meeting LS1024A core voltage ramp requirements and DDR3L VTT tracking accuracy (50% of SW3 output).
All four buck regulators support PFM/PWM/APS modes with programmable soft-start, current limit, and OCP interrupt; SW4 operates exclusively in VTT mode for DDR3L (0.675 V), validated by factory-programmed startup configuration (SW4_VOLT = VTT, SW4_SEQ = 3) per Table 8. REFOUT provides a stable 10 mA DDR termination reference, while LDO1–LDO5 supply auxiliary rails with voltage ranges spanning 0.8–3.3 V and current capabilities from 100–350 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 4.5 V - supports single-cell Li-ion or 3.3 V ±10% intermediate bus without external pre-regulation |
| SW1 Output | 4.5 A, 0.625–1.875 V - powers LS1024A core (VDD) with dynamic voltage scaling capability |
| SW4 Mode | VTT tracking at 50% of SW3 - delivers precise 0.675 V DDR3L termination voltage synchronized to memory rail |
| REFOUT Accuracy | 10 mA DDR reference - meets JEDEC DDR3L VREF tolerance (±1%) for reliable memory interface operation |
| Thermal Protection | Four thresholds: THERM110I to THERM130I - enables graded thermal response before shutdown at 140 °C |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) - allows full runtime reconfiguration of all regulator voltages, sequencing, and protection settings |
| Quiescent Current | 297 μA typical in Standby mode - maintains all rails active while processor sleeps in low-power state |
Pinout & Package
MC34VR500V6ES uses a 56-pin QFN-EP (8 mm × 8 mm, 0.5 mm pitch) with exposed thermal pad (EP). The package is optimized for high-current buck regulator thermal dissipation (RθJB = 10 °C/W) and EMI control via dedicated signal ground pins (SGND1–SGND4) and separated LX/FB routing paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control (0.8×VBIAS threshold); pull-up required if driven by open-drain processor GPIO |
| PORB | Power-on reset output | Open-drain active-low signal de-asserted 2.0–4.0 ms after final regulator enables - used to release LS1024A from reset |
| INTB | Fault interrupt output | Open-drain active-low assertion on OCP, thermal, or UVLO fault - requires software-clear via I²C INTSENSE0 register |
| STBY | Standby mode input | Configurable active-high/low via STBYINV bit; entry into low-quiescent standby preserves DDR self-refresh state |
| REFOUT | DDR reference output | Stable analog reference for DDR3L VTT termination; bypassed externally with ≥1.0 μF capacitor at pin |
| VHALF | Half-supply reference | Internal divider for DDR VREF generation; connects to REFOUT feedback network to set precise 0.675 V |
| FB1–FB4 | Voltage feedback inputs | Analog-sense nodes routed separately from high-current LX paths to prevent noise coupling into regulation loop |
| LX1–LX4 | Switching node outputs | High dv/dt connections requiring tight layout: short traces, local ceramic decoupling, and direct connection to inductor |
Key Features
| Feature | Design Value |
|---|---|
| VTT Tracking for DDR3L | SW4 automatically tracks 50% of SW3 output voltage - eliminates need for external resistor divider and ensures JEDEC-compliant DDR3L termination |
| Factory-Programmed Startup Sequence | SW4_SEQ = 3 and SW4_VOLT = VTT per Table 8 - guarantees correct DDR3L VTT enable timing relative to memory rail (SW3) |
| Multi-Mode Buck Regulation | Configurable PWM/PPM/APS per regulator - enables optimal efficiency across load range (e.g., PFM at light loads, PWM at full load) |
| Integrated Thermal Monitoring | Four independent temperature thresholds (110–130 °C) with hysteresis - supports system-level thermal management without external sensor |
| LS1024A-Specific Default Configuration | LDO1_VOLT = 1.1 V, SW1_VOLT = 1.2 V, SW3_VOLT = 1.5 V per Table 8 - matches LS1024A core and I/O voltage requirements out-of-box |
Applications
| IoT Gateway Power Management | Mobile Wireless Router |
|---|---|
Use Scenario: Compact, fanless gateway aggregating cellular, Wi-Fi, and Ethernet traffic with real-time packet processing. IC Role / Device Role / Timing Role: Primary PMIC supplying LS1024A core (SW1), DDR3L memory (SW3 + SW4 VTT), and peripheral interfaces (LDO2–LDO5). Use Value: Factory-configured startup sequence (Table 8) ensures LS1024A core voltage ramps before DDR initialization - preventing boot failure due to timing violation. |
Use Scenario: Battery-powered portable router requiring extended runtime and rapid wake-from-sleep responsiveness. IC Role / Device Role / Timing Role: Regulator enabling coordinated low-power states: Standby mode maintains DDR3L self-refresh while disabling non-essential rails. Use Value: 297 μA typical standby current extends battery life; STBY-controlled entry/exit avoids software overhead during frequent sleep/wake cycles. |
| Network Attached Storage (NAS) | Industrial MFP Printer Controller |
Use Scenario: Multi-bay NAS with dual Gigabit Ethernet, USB 3.0, and SATA storage - demanding stable power under bursty I/O loads. IC Role / Device Role / Timing Role: Power delivery hub managing LS1024A CPU, DDR3L SDRAM, PHY transceivers (LDO4), and USB controller (LDO5). Use Value: Four independent buck regulators with programmable OCP prevent single-point overcurrent faults from disrupting entire system - improves data integrity during disk writes. |
Use Scenario: High-speed multifunction printer with embedded Linux, scanner engine, and motor drivers requiring clean, isolated supplies. IC Role / Device Role / Timing Role: Centralized power source providing regulated rails for application processor (SW1), image processing ASIC (SW2), DDR3L (SW3/SW4), and analog sensors (LDO1/LDO3). Use Value: Five LDOs with 0.8–3.3 V programmability eliminate need for discrete linear regulators - reduces BOM count and PCB area in space-constrained controller board. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | Automotive-grade 4-channel buck (3A/2A/2A/1.5A); no integrated DDR VTT or REFOUT; requires external tracking circuitry | Targets automotive infotainment with AEC-Q100 qualification; lacks LS1024A-specific startup defaults and DDR3L reference | Select only if AEC-Q100 compliance is mandatory and DDR termination is implemented externally |
| TPS65283-1 | Triple buck (3A/2A/2A) + 5 LDOs; supports DDR3 but no native VTT tracking - relies on external resistor network for VTT generation | Designed for Sitara AM335x processors; lacks LS1024A pin compatibility and factory-programmed sequencing for QorIQ family | Choose when migrating from TI-based designs; expect layout changes and firmware adaptation for sequencing and VTT calibration |
Compared with MPQ4436-AEC1 and TPS65283-1, the MC34VR500V6ES delivers LS1024A-optimized integration - including factory-configured DDR3L VTT tracking, PORB timing aligned to QorIQ reset requirements, and I²C registers mapped to NXP's Power Architecture ecosystem - reducing validation effort and time-to-market for networking edge applications.
Availability
MC34VR500V6ES is available at Aetrix Electronics and suitable for IoT gateways, mobile wireless routers, and industrial MFP printers requiring stable component supply, long-term lifecycle support, and guaranteed traceability for mission-critical deployments.
Supply support for MC34VR500V6ES 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 networking markets, with deep expertise in Power Architecture and ARM-based communications processors.
The MC34VR500V6ES belongs to NXP's QorIQ LS1/T1 family power management IC product line, engineered to simplify power delivery for high-performance communication processors by integrating all essential rails, DDR support, and intelligent sequencing in a single QFN package.
FAQ
What is the default SW4 output configuration for MC34VR500V6ES?
The MC34VR500V6ES is factory-programmed with SW4 in VTT tracking mode (SW4_VOLT = VTT), where it delivers exactly 50% of the SW3 output voltage - configured for DDR3L termination at 0.675 V when SW3 is set to 1.35 V. This setting is fixed in the startup sequence (Table 8) and cannot be overridden to standard buck mode.
Does MC34VR500V6ES support DDR4 memory?
No, MC34VR500V6ES is configured exclusively for DDR3L operation. Its SW4 VTT tracking is calibrated for 0.675 V (50% of 1.35 V SW3), matching DDR3L specifications. DDR4 requires 0.6 V VTT - supported only by variants like MC34VR500V3ES and MC34VR500V7ES per Table 1.
How does the PORB signal behave during MC34VR500V6ES startup?
During MC34VR500V6ES startup, PORB is an open-drain active-low output that remains asserted until 2.0–4.0 ms after the last regulator in the sequence (LDO1, per Table 8) reaches regulation. It then de-asserts to signal the LS1024A processor that all power rails are stable and ready for boot - directly replacing the need for external reset supervisors.
What thermal protection features are implemented in MC34VR500V6ES?
MC34VR500V6ES includes four programmable thermal interrupt thresholds (THERM110I to THERM130I) at 110–130 °C, plus a hard thermal shutdown at 140 °C. Each threshold generates a masked interrupt via INTB, and status is readable in the INTSENSE0 register - enabling graduated thermal management (e.g., throttling SW1 before full shutdown).
Can MC34VR500V6ES operate with a 3.3 V input supply?
Yes, MC34VR500V6ES supports 2.8–4.5 V input, making 3.3 V nominal supply fully compatible. All buck regulators maintain regulation across this range, and internal references (VBG, VDIG) remain stable - verified in Table 7 for VVIN = 3.6 V and Table 6 for I/O voltage tolerances.
MC34VR500V6ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- QorlQ LS1/T1 Communications Processors
- Current - Supply:
- 2A
- Voltage - Supply:
- 2.8V ~ 4.5V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-QFN-EP (8x8)
MC34VR500V6ES FAQ
1.How can I place an order for MC34VR500V6ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR500V6ES 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 MC34VR500V6ES reliable?
The price and inventory of MC34VR500V6ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR500V6ES is usually 5 days.
3.What payment methods are accepted for MC34VR500V6ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR500V6ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR500V6ES?
MC34VR500V6ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR500V6ES 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 MC34VR500V6ES?
For technical support, including MC34VR500V6ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR500V6ES requirements.
6.How does Aetrix verify that MC34VR500V6ES is sourced from the original manufacturer or authorized distributors?
All MC34VR500V6ES 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 MC34VR500V6ES meets industry standards.
7.What is the process for return or replacement of MC34VR500V6ES?
All MC34VR500V6ES units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR500V6ES, 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 MC34VR500V6ES part is unused and in its original packaging.
Return procedure for MC34VR500V6ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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