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NXP Semiconductors MC34VR500V4ES
- Part No.:
- MC34VR500V4ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC34VR500V4ES.pdf
- Description:
- IC REG 9OUT BUCK/LDO 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:245
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Product details
Overview
MC34VR500V4ES from NXP Semiconductors is a multi-output DC/DC power management IC designed specifically for QorIQ LS1043A/LS1023A and T1023/T1013 communication 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, DDR3L/DDR4 reference generation (REFOUT), and I²C programmability - delivering complete system power for processor cores, DDR memory, and peripherals in compact networking equipment.
For engineers reviewing the MC34VR500V4ES datasheet, MC34VR500V4ES pinout, MC34VR500V4ES application, or MC34VR500V4ES 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), I²C interface timing, and LS1043A-specific startup configuration - all confirmed from NXP's Rev. 12 datasheet and orderable parts table.
Technical Context
The MC34VR500V4ES implements a SMARTMOS-based PMIC architecture with integrated high-side/low-side MOSFETs per buck stage, enabling direct connection to LS1043A core and I/O rails without external switches. Its power control logic includes dedicated processor interface signals (STBY, PORB, INTB) and event-driven sequencing aligned to QorIQ boot requirements.
It supports dynamic voltage scaling via I²C-controlled PWM/PPM/APS modes, factory-programmed startup sequence (SW1 at 1.5 V, SW2 at 1.8 V, SW3 at 1.2 V, SW4 in VTT mode tracking SW3), and dual-clock operation (16 MHz trimmed RC + 32 kHz untrimmed RC) for accurate timing during active and low-power states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 4.5 V - compatible with single-cell Li-ion or 3.3 V system bus with margin |
| SW1 Output Current / Range | 4.5 A, 0.625–1.875 V - powers LS1043A core (VDD) with dynamic voltage scaling support |
| SW4 Mode | VTT tracking regulator - supplies DDR3L termination at 50% of SW3 output (0.6 V nominal) |
| REFOUT Accuracy | 10 mA DDR reference - provides stable 0.6 V (DDR3L) or 0.6 V (DDR4) for memory termination |
| Standby Quiescent Current | 297 μA typical - enables low-power network standby in IoT gateways and wireless routers |
| Thermal Protection Threshold | 130 °C shutdown - debounced 8 ms fail-safe against sustained overtemperature in enclosed chassis |
| I²C Interface Voltage | VCCI2C = 1.7–3.6 V - supports direct interfacing with LS1043A GPIOs without level shifters |
Pinout & Package
MC34VR500V4ES uses a 56-pin QFN-EP (8 mm × 8 mm, 0.5 mm pitch) package with exposed thermal pad (EP). Pin functions are validated per NXP datasheet Section 3.2 (Table 2), including dedicated PVIN/LX/FB nodes per buck regulator, isolated LDO input/output pins, and processor interface signals (EN, STBY, PORB, INTB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 56) | Enable input | Active-high logic control; pull-up to VBIAS (8–100 kΩ) required for reliable startup with LS1043A |
| PORB (Pin 3) | Open-drain reset output | Asserted 2–4 ms after final regulator enables - used to release LS1043A from hardware reset |
| INTB (Pin 1) | Open-drain fault interrupt | Signals OCP, thermal, UVLO faults; requires external pull-up to VCCI2C for I²C-compatible signaling |
| FB1 (Pin 13) | SW1 feedback input | High-impedance analog node; must be routed separately from LX1 to avoid switching noise coupling |
| REFOUT (Pin 31) | DDR reference output | Stable 0.6 V source for DDR3L/DDR4 VTT; bypassed with ≥1.0 μF capacitor per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| VTT-tracking regulation | SW4 dynamically tracks 50% of SW3 output voltage - eliminates need for external resistor divider in DDR3L/DDR4 termination networks |
| Factory-configured startup | Pre-programmed sequence: SW1 (1.5 V) → SW2 (1.8 V) → SW3 (1.2 V) → SW4 (VTT) → REFOUT - matches LS1043A boot voltage ordering |
| Multi-mode regulation | Configurable PWM/PPM/APS per buck channel - balances efficiency (PPM) and transient response (PWM) across load conditions |
| Integrated thermal monitoring | Four independent thresholds (110/120/125/130 °C) with interrupt outputs - enables firmware-triggered throttling before shutdown |
| Processor interface logic | Dedicated STBY, PORB, and INTB pins with open-drain outputs - directly interfaces LS1043A power management unit without glue logic |
Applications
| Network Attached Storage (NAS) | Mobile Wireless Router |
|---|---|
Use Scenario: Dual-core LS1043A-based NAS platform with DDR4 memory, SATA controllers, and Gigabit Ethernet PHYs. IC Role / Device Role / Timing Role: MC34VR500V4ES supplies VDD (1.5 V), DDR4 VDDQ/VTT (0.6 V), and peripheral rails (3.3 V LDOs) with synchronized startup and thermal-aware throttling. Use Value: Eliminates discrete regulator count by >70%; reduces BOM cost and PCB area while meeting JEDEC DDR4 VTT tolerance (±15 mV) via internal tracking. | Use Scenario: Compact LTE/5G mobile router with LS1023A SoC, Wi-Fi 6 radio, and USB 3.0 host controller. IC Role / Device Role / Timing Role: MC34VR500V4ES delivers core (1.5 V), I/O (1.8 V), DDR3L (0.675 V), and RF bias (3.3 V) rails with <300 μA standby current. Use Value: Enables battery-backed deep-sleep mode with processor-initiated wake-up via STBY pin - extends field deployment time without compromising boot reliability. |
| IoT Gateway | Automatic Teller Machine (ATM) |
Use Scenario: Edge gateway aggregating LoRaWAN, Zigbee, and cellular uplinks using LS1043A with industrial temperature range (-40 °C to +105 °C). IC Role / Device Role / Timing Role: MC34VR500V4ES manages full system power including crypto accelerator, secure boot ROM, and tamper-detection circuitry under wide ambient conditions. Use Value: Guaranteed operation across -40 °C to +105 °C with validated thermal derating curves - avoids cold-start failures in outdoor enclosures. | Use Scenario: High-reliability ATM controller board with LS1023A, EMV smart-card reader, receipt printer, and cash dispenser motor drivers. IC Role / Device Role / Timing Role: MC34VR500V4ES powers processor, secure element, display backlight (via LDO4), and sensor interfaces with fault-interrupt-driven diagnostics. Use Value: INTB-driven fault logging enables predictive maintenance; PORB-synchronized reset ensures deterministic boot after power interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP5416DS-LF-Z | 4-buck + 3-LDO; no VTT tracking; max SW1 = 4 A; I²C only (no STBY/PORB) | Lacks processor interface logic and DDR-specific features - requires external VTT circuitry for DDR3L/DDR4 | Choose when targeting non-QorIQ platforms with simpler power sequencing and no DDR termination requirement |
| TPS65270PWP | 3-buck + 3-LDO; no VTT; SW1 = 3 A; no factory-programmed startup; SPI interface only | Missing LS1043A-specific sequencing, thermal interrupts, and DDR reference - unsuitable for QorIQ DDR memory subsystems | Consider only for cost-sensitive designs where DDR is absent and external sequencing logic is acceptable |
Compared with MP5416DS-LF-Z and TPS65270PWP, MC34VR500V4ES uniquely integrates VTT tracking, LS1043A-aligned startup, and dedicated processor interface pins - reducing design risk and validation effort for QorIQ-based communications infrastructure.
Availability
MC34VR500V4ES is available at Aetrix Electronics and suitable for network attached storage, mobile wireless routers, and IoT gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC34VR500V4ES 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 communications markets.
The MC34VR500V4ES belongs to NXP's QorIQ Power Management IC family, engineered to simplify power delivery for multicore communications processors - emphasizing integration, thermal robustness, and processor-specific interoperability.
FAQ
What is the primary processor family supported by the MC34VR500V4ES?
The MC34VR500V4ES is specifically designed for NXP's QorIQ LS1043A and LS1023A communication processors, as well as T1023/T1013 variants. Its factory-programmed startup sequence, VTT tracking capability, and pinout alignment are optimized for these SoCs - ensuring correct voltage ramping order, DDR3L/DDR4 compatibility, and direct interface with processor power management signals like STBY and PORB.
Does the MC34VR500V4ES support DDR4 memory termination?
Yes, the MC34VR500V4ES supports DDR4 memory termination through its REFOUT regulator and SW4 VTT-tracking function. When configured for DDR4 (as specified for MC34VR500V4ES in Table 1), SW4 operates in VTT mode at 50% of SW3 output, delivering 0.6 V ±15 mV - meeting JEDEC DDR4 VTT specifications. REFOUT provides the precise reference needed for DDR4 VTT regulation accuracy.
What are the key thermal protection features of the MC34VR500V4ES?
The MC34VR500V4ES includes four programmable thermal interrupt thresholds (110 °C, 120 °C, 125 °C, 130 °C) and a hard shutdown at 130–150 °C. Each threshold generates a dedicated interrupt (THERM110I–THERM130I) readable via I²C register INTSENSE0. The protection is debounced for 8.0 ms to prevent false triggers, and junction-to-board thermal resistance is 10 °C/W - enabling effective heat dissipation through the EPAD to multilayer PCB ground planes.
How is the startup sequence configured for the MC34VR500V4ES?
The MC34VR500V4ES has a factory-programmed startup sequence defined in Table 8 of the datasheet: SW1 (1.5 V) → SW2 (1.8 V) → SW3 (1.2 V) → SW4 (VTT) → REFOUT, with LDOs sequenced across stages. This sequence is hard-coded and aligns with LS1043A boot requirements. While I²C allows runtime reconfiguration, the default behavior requires no software initialization - simplifying bring-up for reference designs like LS1043ARDB.
What is the role of the REFOUT pin on the MC34VR500V4ES?
The REFOUT pin (Pin 31) on the MC34VR500V4ES delivers a precision 0.6 V reference output rated for 10 mA. It serves as the voltage reference for the internal VTT-tracking regulator (SW4) and can also drive external DDR termination circuits. Per datasheet layout guidelines, REFOUT must be bypassed with ≥1.0 μF ceramic capacitance near the pin to maintain stability and meet DDR3L/DDR4 reference accuracy requirements.
MC34VR500V4ES 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:
- 250µA
- 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)
MC34VR500V4ES FAQ
1.How can I place an order for MC34VR500V4ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR500V4ES 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 MC34VR500V4ES reliable?
The price and inventory of MC34VR500V4ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR500V4ES is usually 5 days.
3.What payment methods are accepted for MC34VR500V4ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR500V4ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR500V4ES?
MC34VR500V4ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR500V4ES 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 MC34VR500V4ES?
For technical support, including MC34VR500V4ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR500V4ES requirements.
6.How does Aetrix verify that MC34VR500V4ES is sourced from the original manufacturer or authorized distributors?
All MC34VR500V4ES 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 MC34VR500V4ES meets industry standards.
7.What is the process for return or replacement of MC34VR500V4ES?
All MC34VR500V4ES units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR500V4ES, 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 MC34VR500V4ES part is unused and in its original packaging.
Return procedure for MC34VR500V4ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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