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NXP Semiconductors MC34VR500V5ES
- Part No.:
- MC34VR500V5ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC34VR500V5ES.pdf
- Description:
- REGULATOR BUCK QUAD WITH UP TO
- Quantity:
- Payment:
- Shipping:
Inventory:306
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Product details
Overview
MC34VR500V5ES from NXP Semiconductors is a multi-output DC/DC power management IC designed specifically for QorIQ LS1/T1 communication processors. 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 (0.675 V VTT), and I²C programmability - delivering complete system power for LS102X processors, DDR3L memory, and peripherals in compact 56-pin QFN-EP (8×8 mm) package.
For engineers reviewing the MC34VR500V5ES datasheet, MC34VR500V5ES pinout, MC34VR500V5ES application, or MC34VR500V5ES equivalent, this page provides verified regulator output ranges (e.g., SW1: 0.625–1.875 V), thermal protection thresholds (110–130 °C), low-power mode current (122 μA sleep), DDR3L VTT tracking capability, and confirmed pin definitions per NXP Rev. 12 datasheet.
Technical Context
The MC34VR500V5ES implements a SMARTMOS-based PMIC architecture with integrated high-side and low-side MOSFETs across all four buck stages, enabling direct connection to LS102X processor rails without external power switches. Its I²C interface (SCL/SDA, 3.3 V tolerant) supports full register-level control of voltage, sequencing, soft-start, OCP, and PFM/PWM mode selection.
Power Control Logic includes dedicated STBY and EN inputs for processor-coordinated state transitions, PORB open-drain reset output synchronized to regulator enable timing (2–4 ms delay), and INTB fault interrupt signaling. The device uses a trimmed 16 MHz RC oscillator for timing-critical functions and supports DDR3L termination via SW4 operating in VTT tracking mode at exactly 50% of SW3 output voltage.
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 regulated 3.3 V system bus |
| SW1 Output Current / Range | 4.5 A, 0.625 V to 1.875 V - powers LS102X core (VDDC) with dynamic voltage scaling |
| SW4 VTT Mode | Enabled, tracks 50% of SW3 - delivers precise 0.675 V DDR3L termination voltage |
| Quiescent Current (Sleep) | 122 μA typical - enables ultra-low-power idle states for IoT gateways and wireless routers |
| Thermal Protection Threshold | 130 °C (trip), 110–130 °C warning interrupts - prevents die overheating under sustained load |
| I²C Interface Voltage | VCCI2C = 1.7–3.6 V - supports direct interfacing with 1.8 V or 3.3 V host processors |
| Ambient Operating Range | −40 °C to +105 °C - qualified for industrial and networking equipment environments |
Pinout & Package
MC34VR500V5ES is housed in a thermally enhanced 56-pin QFN-EP (8 mm × 8 mm, 0.5 mm pitch) with exposed thermal pad (EP). The package supports high-current routing and efficient heat dissipation via PCB vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high logic signal initiating full power-up sequence; pull-up to VBIAS required if not driven |
| PORB | Open-drain reset output | Asserted low 2–4 ms after final regulator enables - used to release LS102X from hardware reset |
| INTB | Open-drain interrupt output | Signals faults (OCP, thermal, UVLO); requires external pull-up to VVIN for proper logic level |
| SCL / SDA | I²C clock/data lines | 3.3 V-tolerant, open-drain interface for full configuration and real-time monitoring of all regulators |
| SW4 FB / PVIN4 / LX4 | VTT feedback, input, switch node | Enables precise DDR3L VTT regulation by tracking SW3 output at 50% ratio with dedicated feedback path |
| REFOUT / REFIN / VHALF | DDR reference generation | REFOUT delivers stable reference; VHALF provides half-supply bias for DDR termination circuitry |
Key Features
| Feature | Design Value |
|---|---|
| VTT Tracking Mode | SW4 automatically regulates at exactly 50% of SW3 output voltage - eliminates external resistive divider for DDR3L termination |
| Programmable Sequencing | Independent start-up order and delay per regulator (via I²C registers) - ensures safe LS102X core, memory, and peripheral power-up |
| Multi-Mode Regulation | Configurable PWM, PFM, and APS modes per buck converter - balances efficiency vs. noise for varying load conditions |
| Integrated Thermal Monitoring | Four discrete overtemperature warning interrupts (THERM110I–THERM130I) plus hard shutdown at 130 °C - enables predictive thermal management |
| Low-Power State Support | Three user-defined states (OFF/SLEEP/STANDBY) with sub-250 μA quiescent current - extends battery life in portable networking devices |
Applications
| Internet of Things Gateway | Mobile Wireless Router |
|---|---|
Use Scenario: Compact edge gateway aggregating Zigbee, BLE, and Wi-Fi traffic with LS1021A processor and DDR3L memory. IC Role / Device Role / Timing Role: MC34VR500V5ES supplies VDDC (1.0 V), DDR3L VTT (0.675 V), and peripheral LDOs while coordinating power sequencing with processor boot. Use Value: Integrated VTT tracking eliminates external components; 122 μA sleep current extends battery-backed operation during idle periods. | Use Scenario: Battery-powered 4G/LTE router using LS1020A SoC, requiring robust thermal management in sealed enclosures. IC Role / Device Role / Timing Role: MC34VR500V5ES delivers regulated rails for CPU, DDR3L, HDMI, and Ethernet PHYs with coordinated startup and fault-aware shutdown. Use Value: Four thermal warning interrupts allow firmware to throttle CPU frequency before reaching 130 °C shutdown threshold. |
| Network Attached Storage | Automatic Teller Machine |
Use Scenario: Dual-core NAS controller (LS1022A) managing SATA drives, USB peripherals, and Gigabit Ethernet with DDR3L buffer memory. IC Role / Device Role / Timing Role: MC34VR500V5ES powers processor core, DDR3L termination, and 3.3 V/1.8 V peripherals via five LDOs and four bucks with I²C runtime adjustment. Use Value: Programmable soft-start prevents inrush current on 4.5 A SW1 rail during cold boot, protecting upstream power supply. | Use Scenario: ATM mainboard with LS1021A processor, touch display, card reader, and cash dispenser - operating continuously in ambient temperatures up to 50 °C. IC Role / Device Role / Timing Role: MC34VR500V5ES manages full system power including secure element LDOs, display bias, and DDR3L termination with industrial-grade thermal margin. Use Value: −40 °C to +105 °C rating ensures reliable operation inside heated/cold ATMs; EPAD thermal pad sustains >2 W dissipation. |
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-qualified dual-buck (3 A + 2 A), no integrated LDOs or DDR reference; requires external VTT solution | Targets automotive ADAS cameras, not communications processors; lacks LS1/T1-specific sequencing logic | Use only if redesigning for AEC-Q100 compliance and accepting added board area for discrete LDOs/VTT |
| TPS65283-1 | Triple-buck (3 A + 2 A + 1.5 A) + 3 LDOs; no VTT tracking; I²C interface limited to voltage setting only (no sequencing or fault reporting) | Designed for DSP-based industrial motor control, not QorIQ processor ecosystems; no DDR3L/DDR4 reference support | Select when cost sensitivity outweighs need for DDR termination accuracy and advanced power-state control |
Compared with MPQ4436-AEC1 and TPS65283-1, the MC34VR500V5ES uniquely integrates VTT tracking, five LDOs, DDR3L reference, and LS102X-optimized sequencing - making it irreplaceable for drop-in QorIQ LS1/T1 designs without compromising DDR integrity or thermal safety.
Availability
MC34VR500V5ES is available at Aetrix Electronics and suitable for Internet of Things gateways, mobile wireless routers, and network attached storage systems requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for MC34VR500V5ES 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.
The MC34VR500V5ES belongs to NXP's QorIQ Power Management IC family, engineered to deliver tightly sequenced, DDR-optimized power for LS1/T1 multicore communication processors in space-constrained networking equipment.
FAQ
What is the VTT tracking behavior of the MC34VR500V5ES?
The MC34VR500V5ES configures SW4 as a VTT tracking regulator that outputs precisely 50% of the SW3 voltage - delivering 0.675 V for DDR3L termination when SW3 is set to 1.35 V. This ratio is hard-coded in silicon and does not require external resistors or I²C calibration. The MC34VR500V5ES maintains this tracking accuracy across temperature and load variations per NXP Rev. 12 datasheet Section 5.1.
Does the MC34VR500V5ES support DDR4 memory?
No, the MC34VR500V5ES is configured exclusively for DDR3L operation with a fixed 0.675 V VTT output. DDR4 support requires 0.6 V VTT, which is implemented in other variants like MC34VR500V3ES and MC34VR500V7ES. The MC34VR500V5ES pinout, startup configuration (Table 8), and datasheet specify DDR3L compatibility only.
How does the MC34VR500V5ES handle thermal protection?
The MC34VR500V5ES provides four programmable thermal warning interrupts (THERM110I–THERM130I) and a hard shutdown at 130 °C. Each warning triggers a distinct interrupt flag in INTSENSE0 register, allowing firmware to initiate cooling actions before shutdown. The MC34VR500V5ES thermal protection is debounced for 8.0 ms to prevent false trips from transient spikes, as specified in Table 5 of the datasheet.
What are the key differences between MC34VR500V5ES and MC34VR500V1ES?
Both MC34VR500V5ES and MC34VR500V1ES support DDR3L VTT and LS102X processors, but differ in factory-programmed startup configuration: MC34VR500V5ES defaults SW1 to 1.5 V (vs. 1.0 V in V1ES), sets LDO2/LDO3 to 2.5 V (vs. 1.8 V), and sequences REFOUT earlier (SEQ = 12 vs. 3). These values are stored in one-time-programmable registers and can be modified via I²C after power-up.
Can the MC34VR500V5ES operate without an external crystal?
Yes, the MC34VR500V5ES operates fully autonomously using its internal trimmed 16 MHz RC oscillator for all timing-critical functions including PWM switching, sequencing delays, and I²C clock derivation. No external crystal or clock source is required - the device meets ±8% frequency accuracy over −40 °C to +105 °C per Table 10 in the datasheet.
MC34VR500V5ES 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)
MC34VR500V5ES FAQ
1.How can I place an order for MC34VR500V5ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR500V5ES 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 MC34VR500V5ES reliable?
The price and inventory of MC34VR500V5ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR500V5ES is usually 5 days.
3.What payment methods are accepted for MC34VR500V5ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR500V5ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR500V5ES?
MC34VR500V5ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR500V5ES 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 MC34VR500V5ES?
For technical support, including MC34VR500V5ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR500V5ES requirements.
6.How does Aetrix verify that MC34VR500V5ES is sourced from the original manufacturer or authorized distributors?
All MC34VR500V5ES 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 MC34VR500V5ES meets industry standards.
7.What is the process for return or replacement of MC34VR500V5ES?
All MC34VR500V5ES units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR500V5ES, 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 MC34VR500V5ES part is unused and in its original packaging.
Return procedure for MC34VR500V5ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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