My Inquiry
My Account
NXP Semiconductors MC34VR500V6ESR2
- Part No.:
- MC34VR500V6ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC34VR500V6ESR2.pdf
- Description:
- REGULATOR BUCK QUAD WITH UP TO
- Quantity:
- Payment:
- Shipping:
Inventory:4,173
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC34VR500V6ESR2 from NXP Semiconductors is a multi-output DC/DC power management IC designed specifically for the LS1024A communications processor. 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 reference (0.675 V VTT), I²C programmability, and thermal protection - delivering complete system power for networking edge devices.
For engineers reviewing the MC34VR500V6ESR2 datasheet, MC34VR500V6ESR2 pinout, MC34VR500V6ESR2 application, or MC34VR500V6ESR2 equivalent, this page provides verified regulator output ranges, startup sequencing details per Table 8, VTT tracking behavior, thermal shutdown thresholds (130–150 °C), and confirmed QFN-56 8×8 mm EP package compatibility with LS1024A reference designs.
Technical Context
The MC34VR500V6ESR2 implements a SMARTMOS-based PMIC architecture with factory-programmed startup sequence (SW1→SW2→SW3→SW4→REFOUT→LDO1→LDO2/3/4/5) optimized for LS1024A boot timing. Its SW4 operates exclusively in VTT tracking mode (50% of SW3 output), supporting DDR3L termination at 0.675 V - distinct from V2/V8/V9 variants where SW4 functions as a standalone 1.0 A buck.
Power control logic includes dedicated STBY input for low-power state transitions, open-drain PORB (2–4 ms delay after final rail enable), and INTB fault signaling. All regulators support programmable voltage, soft-start, OCP, and PFM/PWM/APS modes via I²C interface operating at 3.3 V VCCI2C supply.
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% bus with UVLO at 2.65 V |
| SW1 Output | 0.625 V to 1.875 V @ 4.5 A - supplies LS1024A core (VDD) with dynamic voltage scaling |
| SW4 Mode | VTT tracking only - outputs 50% of SW3 voltage for DDR3L termination (0.675 V typical) |
| LDO1 Range | 0.80 V to 1.55 V @ 250 mA - configurable for processor I/O or auxiliary logic rails |
| REFOUT Accuracy | ±1% over -40 °C to +105 °C - provides stable DDR3L reference without external components |
| Thermal Protection | 130 °C trip point with 10 °C hysteresis - shuts down all regulators to prevent die damage |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) compatible - uses SCL/SDA with 3.3 V VCCI2C supply |
Pinout & Package
MC34VR500V6ESR2 is housed in a 56-pin QFN-EP (8 mm × 8 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized layout for VR500 family, with dedicated PVIN/LX/FB groups per buck channel, segregated LDO input/output pins, and I²C/control signals on perimeter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic control; internal pull-up not provided - requires external 8–100 kΩ to VBIAS |
| PORB | Open-drain reset output | Asserted low 2–4 ms after last regulator enables - used to release LS1024A from hardware reset |
| INTB | Open-drain interrupt output | Signals thermal, OCP, or UVLO faults; requires external pull-up to VVIN |
| STBY | Standby mode control | Configurable active-high/low via STBYINV bit; entry into low-quiescent-current standby state |
| REFOUT | DDR reference output | 10 mA capable, ±1% accuracy - directly drives DDR3L VREF pin without external divider |
| EP (exposed pad) | Thermal & power ground | Mandatory connection to PCB ground plane via ≥6 thermal vias - critical for RθJB = 10 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| VTT tracking mode | SW4 automatically tracks 50% of SW3 output voltage - eliminates need for external resistor divider in DDR3L systems |
| Factory-configured sequencing | Pre-programmed startup order (SW1→SW2→SW3→SW4→REFOUT→LDO1→LDO2/3/4/5) matches LS1024A requirements per Table 8 |
| Multi-mode regulation | Each buck supports PWM (fixed-frequency), PFM (light-load efficiency), and APS (adaptive phase shift) - optimizes efficiency across load range |
| Integrated thermal monitoring | Four independent thresholds (110/120/125/130 °C) with interrupt reporting - enables system-level thermal management before shutdown |
| DDR3L-optimized reference | REFOUT delivers stable 0.675 V ±1% for DDR3L VREF with no external components - reduces BOM count and layout area |
Applications
| Network Edge Gateway | Industrial Router |
|---|---|
Use Scenario: Compact IoT gateway aggregating cellular, Wi-Fi, and Ethernet traffic with LS1024A SoC. IC Role / Device Role / Timing Role: Primary power controller supplying core, I/O, DDR3L, and peripheral rails with synchronized startup. Use Value: Eliminates discrete buck/LDO combinations; VTT tracking ensures DDR3L signal integrity without calibration overhead. | Use Scenario: Fanless industrial router deployed in temperature-variable environments (-40 °C to +85 °C). IC Role / Device Role / Timing Role: Thermal-aware PMIC enabling reliable operation under sustained load with automatic shutdown at 130 °C. Use Value: Integrated thermal protection prevents field failures; factory-programmed sequencing guarantees deterministic boot across temperature range. |
| Secure MFP Controller | Embedded NAS Appliance |
Use Scenario: Multi-function printer with encrypted document processing and high-speed scanning. IC Role / Device Role / Timing Role: Powers LS1024A application processor, DDR3L memory, and image sensor interfaces with precise voltage sequencing. Use Value: LDO1–LDO5 provide isolated, low-noise rails for analog sensor front-ends and security co-processors. | Use Scenario: Low-power network-attached storage with dual SATA controllers and USB 3.0 host. IC Role / Device Role / Timing Role: Delivers 1.2 V core, 1.35 V I/O, 0.675 V DDR3L VTT, and 3.3 V peripheral rails from single 3.3 V input. Use Value: Single-chip solution reduces board area by >40% vs. discrete PMIC + LDO approach; I²C programmability supports firmware updates to rail voltages. |
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 quad-buck (4 A/3 A/3 A/2 A); no integrated DDR reference or LDOs; requires external VTT circuitry | Targets automotive ADAS ECU, not communications processors; lacks LS1024A-specific sequencing | Choose only if automotive qualification (AEC-Q100) and higher current per rail are required - adds design complexity for DDR support |
| TPS65283-1 | Dual 3 A buck + triple LDO; no VTT tracking; supports DDR3 but requires external VTT generator and sequencing logic | Designed for OMAP/AM335x processors; lacks factory-programmed startup for LS1024A | Select when cost sensitivity outweighs integration - expect +3 BOM items and custom sequencing firmware |
Compared with MPQ4436-AEC1 and TPS65283-1, the MC34VR500V6ESR2 uniquely combines LS1024A-optimized sequencing, integrated DDR3L VTT tracking, and five programmable LDOs in one package - reducing total solution size by 35% and eliminating 7+ external components required by alternatives.
Availability
MC34VR500V6ESR2 is available at Aetrix Electronics and suitable for network edge gateways, industrial routers, and secure MFP controllers requiring stable component supply with full lifecycle support through 2030.
Supply support for MC34VR500V6ESR2 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 focused on secure connectivity solutions for automotive, industrial, and communication markets.
The MC34VR500V6ESR2 belongs to NXP's VR500 family of processor-specific PMICs, engineered to simplify power design for QorIQ LS1/T1 series communications processors with pre-validated sequencing and DDR interface compliance.
FAQ
What is the default SW4 configuration for MC34VR500V6ESR2?
The MC34VR500V6ESR2 has SW4 permanently configured as a VTT tracking regulator - it outputs exactly 50% of the SW3 voltage and cannot be reconfigured as a standalone buck. This matches DDR3L requirements (0.675 V VTT when SW3 = 1.35 V) and is hard-coded in factory programming per Table 8.
Does MC34VR500V6ESR2 support DDR4 memory?
No, MC34VR500V6ESR2 is specified only for DDR3L operation with 0.675 V VTT. For DDR4 support (0.6 V VTT), NXP offers MC34VR500V3ES or MC34VR500VAES variants - the V6 suffix explicitly denotes LS1024A + DDR3L compatibility per Orderable Parts table.
How is the startup sequence programmed in MC34VR500V6ESR2?
The MC34VR500V6ESR2 uses factory-programmed default sequencing stored in non-volatile registers (Table 8). While I²C allows runtime modification of voltage levels and timing, the base sequence order (SW1→SW2→SW3→SW4→REFOUT→LDO1→LDO2/3/4/5) is fixed and cannot be altered - ensuring LS1024A boot reliability without firmware dependency.
What thermal protection features does MC34VR500V6ESR2 include?
MC34VR500V6ESR2 includes four programmable thermal interrupt thresholds (110/120/125/130 °C) and a hard shutdown at 130–150 °C. The THERM130I interrupt triggers at 130 °C with 10 °C hysteresis, allowing system firmware to throttle loads before reaching the 150 °C fail-safe shutdown point - critical for fanless networking equipment.
Is MC34VR500V6ESR2 pin-compatible with other VR500 variants?
Yes, all VR500 variants including MC34VR500V6ESR2 share identical 56-pin QFN-EP (8×8 mm) packaging and pinout - mechanical and electrical compatibility is maintained across V1–VC suffixes. Differences are limited to factory-programmed register defaults (voltage, sequence, VTT enable), not pin function or layout.
MC34VR500V6ESR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
MC34VR500V6ESR2 FAQ
1.How can I place an order for MC34VR500V6ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR500V6ESR2 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 MC34VR500V6ESR2 reliable?
The price and inventory of MC34VR500V6ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR500V6ESR2 is usually 5 days.
3.What payment methods are accepted for MC34VR500V6ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR500V6ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR500V6ESR2?
MC34VR500V6ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR500V6ESR2 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 MC34VR500V6ESR2?
For technical support, including MC34VR500V6ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR500V6ESR2 requirements.
6.How does Aetrix verify that MC34VR500V6ESR2 is sourced from the original manufacturer or authorized distributors?
All MC34VR500V6ESR2 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 MC34VR500V6ESR2 meets industry standards.
7.What is the process for return or replacement of MC34VR500V6ESR2?
All MC34VR500V6ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR500V6ESR2, 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 MC34VR500V6ESR2 part is unused and in its original packaging.
Return procedure for MC34VR500V6ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC34VR500V6ESR2 Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
