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NXP Semiconductors MC34VR500V7ES
- Part No.:
- MC34VR500V7ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC34VR500V7ES.pdf
- Description:
- REGULATOR BUCK QUAD WITH UP TO
- Quantity:
- Payment:
- Shipping:
Inventory:1,521
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Product details
Overview
MC34VR500V7ES from NXP Semiconductors is a multi-output DC/DC power management IC designed specifically for QorIQ LS1020/21/22A communications processors. It integrates four buck regulators (SW1: 4.5 A, SW2: 2.0 A, SW3: 2.5 A, SW4: 1.0 A VTT-tracking), five LDOs, DDR4 termination reference (0.6 V), and I²C programmability - delivering complete system power for processor, DDR4 memory, and peripherals in compact networking equipment.
For engineers reviewing the MC34VR500V7ES datasheet, MC34VR500V7ES pinout, MC34VR500V7ES application, or MC34VR500V7ES equivalent, this page provides verified regulator output ranges (e.g., SW1: 0.625–1.875 V), thermal protection thresholds (110–130 °C), standby current (297 μA typ), DDR4 VTT tracking capability, and confirmed 56-pin QFN-EP (8×8 mm) package with exposed thermal pad.
Technical Context
The MC34VR500V7ES implements a SMARTMOS-based PMIC architecture with integrated high-side and low-side MOSFETs per buck stage, supporting PWM/PPM/APS modes and dynamic voltage scaling. Its power control logic includes dedicated processor interface signals (EN, STBY, PORB, INTB) and event-driven sequencing aligned to LS102x boot requirements.
It features factory-programmed startup configuration optimized for LS1020/21/22A + DDR4 systems: SW4 operates in VTT mode (50% of SW3 output), REFOUT enabled, LDO1–LDO5 sequenced per Table 8, and internal 16 MHz trimmed oscillator used for timing-critical functions including PORB assertion delay (2.0 ms) and fault debounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 4.5 V - supports single-cell Li-ion or regulated 3.3 V supply rails without external pre-regulation |
| SW1 Output Current / Range | 4.5 A, 0.625 V to 1.875 V - powers LS102x core (VDD) with dynamic voltage scaling for performance/power trade-offs |
| SW4 Mode | VTT tracking regulator - delivers precise 0.6 V DDR4 termination voltage referenced to SW3 output |
| REFOUT Accuracy | 10 mA output, ±1% initial accuracy - supplies stable reference for DDR4 memory VREF pins |
| Thermal Protection | Four programmable thresholds (110/120/125/130 °C) with 2–4 °C hysteresis - enables graded thermal response before shutdown at 140 °C |
| Standby Current | 297 μA typical - maintains LDOs and REFOUT active while processor sleeps, enabling fast wake-up |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) compatible - allows full register read/write for voltage, sequence, and fault monitoring |
Pinout & Package
MC34VR500V7ES is housed in a 56-pin QFN-EP (8 mm × 8 mm, 0.5 mm pitch) with exposed thermal pad (EP). The package supports high-power dissipation via direct PCB thermal vias to internal ground planes and meets JEDEC J-STD-020C reflow standards (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic input (0.8×VBIAS threshold); initiates full power-up sequence when asserted |
| PORB | Open-drain reset output | Asserted low 2.0–4.0 ms after final regulator enables - synchronizes LS102x processor exit from reset |
| INTB | Open-drain interrupt output | Active-low signal indicating masked/unmasked faults (thermal, OCP, UVLO); requires software clear |
| STBY | Standby mode control | Processor-driven signal entering low-power state; configurable active-high/low via STBYINV bit |
| REFOUT | DDR reference voltage output | Stable 0.6 V (for DDR4) or 0.675 V (for DDR3L) reference; bypassed externally with ≥1.0 μF capacitor |
| EP (Pin 56) | Exposed thermal pad | Ground-return path for all buck regulators; must be connected to PCB ground plane via ≥6 thermal vias for RθJB = 10 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| VTT Tracking for DDR4 | SW4 automatically tracks 50% of SW3 output voltage, delivering precise 0.6 V termination without external resistive dividers |
| Factory-Programmed Startup | Hard-coded sequence for LS1020/21/22A + DDR4: SW1–SW3 enable first, then REFOUT and LDOs - eliminates external configuration EEPROM |
| Multi-Mode Buck Operation | Configurable PWM (fixed frequency), PFM (light-load efficiency), and APS (adaptive phase-shift) - optimizes efficiency across load range |
| Integrated Thermal Monitoring | Four independent temperature thresholds (110/120/125/130 °C) with status bits readable via I²C - enables predictive thermal throttling |
| Processor-Centric Control Logic | Dedicated EN, STBY, PORB, and INTB signals provide deterministic power-state coordination with LS102x SoC boot and sleep states |
Applications
| IoT Gateway Power Management | Mobile Wireless Router |
|---|---|
|
Use Scenario: Compact, fanless IoT gateway housing LS1021A SoC, dual-band Wi-Fi, and cellular modem requiring reliable multi-rail power under variable thermal loads. IC Role / Device Role / Timing Role: MC34VR500V7ES supplies VDD (1.0 V), DDR4 VTT (0.6 V), and peripheral LDOs (1.8 V, 3.3 V) with synchronized startup and thermal-aware throttling. Use Value: Eliminates discrete regulator count by >70%, reduces BOM cost, and enables DDR4 compliance without external VTT circuitry. |
Use Scenario: Battery-powered mobile router with LS1022A SoC, GPS, and LTE module operating in ambient temperatures up to 70 °C. IC Role / Device Role / Timing Role: MC34VR500V7ES delivers regulated rails while managing dynamic load transients from RF transmission bursts and maintaining DDR4 stability during sleep/wake cycles. Use Value: Achieves 297 μA standby current and PFM mode operation to extend battery life; thermal interrupts prevent brownouts during sustained transmit duty. |
| Network Attached Storage Controller | Industrial MFP Printer |
|
Use Scenario: Dual-core LS1020A-based NAS controller managing SATA drives, Gigabit Ethernet, and USB 3.0 interfaces in enclosed chassis. IC Role / Device Role / Timing Role: MC34VR500V7ES powers CPU, DDR4, PHYs, and USB LDOs with strict sequencing (SW1→SW3→REFOUT→LDOs) to prevent bus contention during boot. Use Value: Factory-programmed sequence ensures repeatable, glitch-free initialization across production units without firmware dependency. |
Use Scenario: Multifunction printer with LS1022A SoC driving scanner, print engine, and display, subject to rapid thermal cycling during duty cycles. IC Role / Device Role / Timing Role: MC34VR500V7ES regulates core, memory, and motor driver LDOs while monitoring die temperature via THERMxxxS registers to preemptively throttle CPU clocks. Use Value: Four-tier thermal interrupt scheme enables graduated response - warning at 110 °C, throttling at 125 °C, shutdown only at 140 °C - maximizing uptime. |
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 VREF for DDR4 | Designed for automotive infotainment; lacks LS102x-specific sequencing and PORB timing | Choose only if automotive qualification (AEC-Q100) is mandatory and DDR4 reference is implemented externally |
| TPS65283-1 | Triple-buck (3A/2A/2A) + 4 LDOs; no VTT tracking; I²C interface limited to voltage setting (no thermal/fault registers) | Targeted at ARM Cortex-A8/A9 SoCs; no factory-programmed LS102x startup sequence or DDR4-optimized defaults | Select when cost sensitivity outweighs DDR4 integration needs and thermal monitoring is handled externally |
Compared with MPQ4436-AEC1 and TPS65283-1, MC34VR500V7ES uniquely combines LS102x-optimized factory sequencing, integrated DDR4 VTT/REFOUT, and granular thermal interrupt reporting - reducing design risk and validation effort for QorIQ-based networking platforms.
Availability
MC34VR500V7ES is available at Aetrix Electronics and suitable for IoT gateways, mobile wireless routers, and network-attached storage systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability for industrial deployments.
Supply support for MC34VR500V7ES 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 communication markets, with deep expertise in power management for high-performance processors.
The MC34VR500V7ES belongs to NXP's QorIQ Power Management IC family, engineered specifically to simplify power delivery for QorIQ LS1/T1 series communications processors - minimizing external components while ensuring DDR4 compliance and robust thermal management.
FAQ
What is the DDR memory compatibility of the MC34VR500V7ES?
The MC34VR500V7ES is configured for DDR4 memory systems: SW4 operates in VTT tracking mode (50% of SW3 output) to deliver 0.6 V termination, and REFOUT provides a precision 0.6 V reference. This matches the DDR4 specification and distinguishes it from variants like MC34VR500V1ES (DDR3L, 0.675 V). The MC34VR500V7ES does not support DDR3L natively without register reconfiguration.
Does the MC34VR500V7ES require external configuration memory?
No. The MC34VR500V7ES includes factory-programmed startup configuration optimized for LS1020/21/22A + DDR4 systems - including SW1–SW4 voltages, sequencing order, REFOUT enable, and LDO settings. This eliminates the need for external EEPROM or boot-time I²C programming, simplifying design and improving boot reliability.
How does thermal protection work on the MC34VR500V7ES?
The MC34VR500V7ES features four programmable thermal interrupt thresholds (110/120/125/130 °C) and a hard shutdown at 140 °C. Each threshold asserts a dedicated interrupt (THERM110I, etc.), readable via I²C register INTSENSE0. Hysteresis (2–4 °C) prevents chatter. The MC34VR500V7ES uses these to enable graduated system responses - warnings, clock throttling, or controlled shutdown - rather than abrupt failure.
What are the key differences between MC34VR500V7ES and MC34VR500V1ES?
MC34VR500V7ES is configured for LS1020/21/22A + DDR4 (VTT = 0.6 V), while MC34VR500V1ES targets the same processors but with DDR3L (VTT = 0.675 V). Their factory startup sequences differ: V7ES sets SW4_VOLT = VTT and configures REFOUT for 0.6 V, whereas V1ES configures for 0.675 V. Both share identical pinout, package, and regulator capabilities.
Can the MC34VR500V7ES support dynamic voltage scaling (DVS) for the LS102x processor core?
Yes. The MC34VR500V7ES supports DVS on SW1 (core rail), which is programmable from 0.625 V to 1.875 V via I²C. Voltage changes are slew-rate controlled (6.25 mV/μs default), and transitions can be synchronized with processor requests using the I²C interface - enabling real-time power/performance optimization during LS102x operation.
MC34VR500V7ES 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)
MC34VR500V7ES FAQ
1.How can I place an order for MC34VR500V7ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR500V7ES 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 MC34VR500V7ES reliable?
The price and inventory of MC34VR500V7ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR500V7ES is usually 5 days.
3.What payment methods are accepted for MC34VR500V7ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR500V7ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR500V7ES?
MC34VR500V7ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR500V7ES 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 MC34VR500V7ES?
For technical support, including MC34VR500V7ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR500V7ES requirements.
6.How does Aetrix verify that MC34VR500V7ES is sourced from the original manufacturer or authorized distributors?
All MC34VR500V7ES 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 MC34VR500V7ES meets industry standards.
7.What is the process for return or replacement of MC34VR500V7ES?
All MC34VR500V7ES units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR500V7ES, 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 MC34VR500V7ES part is unused and in its original packaging.
Return procedure for MC34VR500V7ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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