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NXP Semiconductors MC34VR5100A0EPR2
- Part No.:
- MC34VR5100A0EPR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MC34VR5100A0EPR2.pdf
- Description:
- POWER MANAGEMENT IC I.MX7 PRE-
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
MC34VR5100A0EPR2 from NXP Semiconductors is a multi-output DC/DC regulator IC designed for LS1 communication processors, integrating three buck converters (3.8 A, 1.25 A, 1.5 A), six adjustable LDOs, RTC supply, and coin-cell charger. It operates from 2.8 V to 4.5 V input and supports –40 °C to +125 °C junction temperature in industrial embedded systems.
For engineers reviewing the MC34VR5100A0EPR2 datasheet, MC34VR5100A0EPR2 pinout, MC34VR5100A0EPR2 application, or MC34VR5100A0EPR2 equivalent, key selection factors include OTP-programmable startup sequencing, I²C-controlled voltage configuration, DDR reference generation, and integrated boost (5.0 V @ 600 mA) for USB or peripheral rail support.
Technical Context
The MC34VR5100A0EPR2 implements three synchronous buck regulators with selectable PWM/PPM/APS modes, a dedicated 5.0 V boost converter with PFM/Auto mode, and six linear regulators with independent input supplies (VLDOIN1–VLDOIN34). Its internal block includes OTP memory for persistent configuration of output voltages, soft-start timing, and power-up sequence.
It features dual-domain control logic: core initialization state machine manages POR, STBY, and EN-driven sequencing, while I²C interface enables dynamic voltage scaling (DVS) and real-time register access. The device integrates bandgap reference (VBG), 32 kHz/16 MHz clocks, and thermal protection thresholds tied to its 125 °C max junction rating.
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 system rails without external pre-regulation |
| Buck Regulator Outputs | SW1: 0.7–1.425 V / 1.8 V / 3.3 V @ 3.8 A; SW2: 1.5–1.85 V or 2.5–3.3 V @ 1.25 A; SW3: 0.9–1.65 V @ 1.5 A - covers core, I/O, and memory rails for LS1012 processors |
| Boost Output | 5.00–5.15 V @ 600 mA - powers USB PHY, SD card, or other 5 V peripherals directly |
| LDO Outputs | LDO1–LDO4: 0.8–3.3 V @ 100–350 mA; V33: 2.85–3.3 V @ 350 mA; VSD: 1.8 V or 3.3 V @ 100 mA - provides low-noise bias for analog, I/O, and DDR termination |
| OTP Configuration | One-Time Programmable memory stores startup sequence, voltage setpoints, soft-start time, and DVS settings - eliminates external configuration EEPROM or firmware boot-time setup |
| Operating Temperature | –40 °C to +125 °C junction - qualified for industrial and extended-temperature communications equipment |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) compatible; SDA/SCL pulled up to VCCI2C (1.7–3.6 V) - enables host processor runtime reconfiguration and telemetry |
Pinout & Package
MC34VR5100A0EPR2 uses a 48-pin QFN package (7.0 mm × 7.0 mm, 0.4 mm pitch) with exposed thermal pad (EP) connected to ground for enhanced thermal dissipation. Pin functions are validated per NXP VR5100 datasheet Rev. 7.0 (2026).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Power enable input | Active-high digital control signal from host processor to initiate full-power sequencing |
| PVIN1, PVIN2, PVIN3 | Buck input supplies | Dedicated analog inputs for SW1/SW2/SW3; require local 4.7 µF + 0.1 µF bypassing for stability |
| LX1, LX2, LX3 | Buck switch node outputs | Connect directly to respective inductors; high di/dt paths require short, wide traces and ground shielding |
| FB1, FB2, FB3 | Buck feedback inputs | Resistive divider nodes routed separately from power paths to minimize noise coupling into regulation loop |
| V33, VSD, VSNVS | Analog output rails | V33 powers DDR I/O; VSD selects 1.8 V/3.3 V via SD_VSEL; VSNVS provides always-on supply from VIN or coin cell |
| SCL, SDA, VCCI2C | I²C bus interface | Open-drain data/clock lines with dedicated 1.7–3.6 V supply - decoupled with 0.1 µF capacitor |
| LICELL | Coin-cell interface | Bidirectional analog terminal supporting charging (1.8–3.3 V range) and backup power switchover |
| REFOUT, REFIN, VHALF | DDR reference subsystem | Generates precise 0.9 V DDR VREF; REFIN requires 1.0 µF net capacitance to ground via VHALF |
Key Features
| Feature | Design Value |
|---|---|
| Three integrated buck regulators with MOSFETs | Eliminates need for 3 external controllers + 6 discrete MOSFETs; reduces BOM count and PCB area by >40% vs discrete solution |
| OTP-configurable startup sequence | Enables deterministic power-up order across 10+ rails without host CPU intervention - critical for LS1012 processor compliance |
| I²C-controlled dynamic voltage scaling | Allows real-time adjustment of SW1/SW2/SW3 output voltages during operation to optimize performance vs. power trade-offs |
| Integrated coin-cell charger and VSNVS rail | Provides seamless backup power switchover and RTC retention without external battery management circuitry |
| DDR reference generator (REFOUT) | Delivers stable 0.9 V ±1% DDR VREF with internal trimming - meets JEDEC DDR3L/DDR4 specification requirements |
Applications
| LS1012-Based Edge Router | Industrial IoT Gateway |
|---|---|
Use Scenario: Compact fanless edge router with LS1012A SoC, DDR3L memory, dual Gigabit Ethernet, and cellular modem. IC Role / Device Role / Timing Role: Primary power management IC supplying all SoC domains (core, GPU, DDR, USB), PHYs, and modem interface rails. Use Value: Single-chip solution replaces 8+ discrete regulators; OTP programming ensures LS1012-compliant power sequencing; VSNVS maintains RTC during main power loss. |
Use Scenario: Ruggedized gateway deployed in factory automation, connecting PLCs, sensors, and cloud via LTE/Wi-Fi. IC Role / Device Role / Timing Role: Central PMIC delivering regulated rails to LS1012 processor, isolated CAN/RS-485 transceivers, and secure element. Use Value: –40 °C to +105 °C ambient rating matches industrial enclosure specs; I²C telemetry enables remote health monitoring; boost rail powers isolated level-shifters. |
| Low-Power 5G Small Cell Baseband | Secure Communications Processor Module |
Use Scenario: Indoor small cell unit with LS1012-based baseband, RF front-end, and GPS timing module. IC Role / Device Role / Timing Role: Supplies core voltage (SW1), DDR3L (V33 + REFOUT), RF bias (LDO2/LDO4), and GPS LNA (LDO1). Use Value: Low-quiescent-current standby mode (<450 µA) extends battery backup life; PFM mode minimizes light-load losses in intermittent traffic scenarios. |
Use Scenario: Tamper-resistant crypto module using LS1012 with hardware security engine and secure boot. IC Role / Device Role / Timing Role: Provides hardened power tree with monitored rails, OTP-locked configuration, and VSNVS-backed secure clock domain. Use Value: OTP prevents unauthorized configuration changes; REFOUT ensures accurate DDR timing for cryptographic acceleration; LICELL support enables secure time-stamping during 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 |
|---|---|---|---|
| MPQ4436-AEC1 | Single 4 A buck only; no integrated LDOs, RTC, coin-cell charger, or I²C interface | Requires 6+ external LDOs and separate RTC/battery management; no programmable sequencing | Select when only high-current core rail is needed and system-level PMIC integration is handled elsewhere |
| TPS650860 | Four bucks (3 A/2 A/2 A/1 A), five LDOs, but no coin-cell charger or DDR reference; I²C interface present | Lacks VSNVS and REFOUT - cannot replace MC34VR5100A0EPR2 in LS1012 DDR3L designs without external circuitry | Consider for non-LS1 applications needing flexible multi-rail control but not requiring DDR compliance or battery backup |
Compared with MPQ4436-AEC1 and TPS650860, MC34VR5100A0EPR2 uniquely integrates OTP-programmed sequencing, DDR reference generation, and coin-cell support - making it the only drop-in solution for LS1012-based platforms requiring full power subsystem consolidation.
Availability
MC34VR5100A0EPR2 is available at Aetrix Electronics and suitable for industrial gateways, edge routers, and secure communications processors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC34VR5100A0EPR2 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 company specializing in secure connectivity solutions for automotive, industrial, and communications markets, with leadership in ARM-based processing and power management IP.
The VR5100 product line was engineered specifically to address the complex, sequenced, low-voltage power requirements of NXP's LS1 family of communication processors - emphasizing integration, configurability, and industrial reliability.
FAQ
What is the primary application target for the MC34VR5100A0EPR2?
The MC34VR5100A0EPR2 is purpose-built for NXP LS1-series communication processors, especially the LS1012A. It delivers all required power rails-including core, DDR3L memory, USB, SD, and peripheral I/O-with OTP-programmed sequencing and DDR reference compliance. Its design eliminates external configuration components and ensures reliable boot in industrial networking equipment where MC34VR5100A0EPR2 serves as the sole PMIC.
Does the MC34VR5100A0EPR2 support DDR4 memory interfaces?
No. The MC34VR5100A0EPR2 is configured for DDR3L (1.35 V) operation, as confirmed by its REFOUT accuracy spec (±1% at 0.9 V) and OTP programming options listed for LS1012 with DDR3L. While some variants like MC34VR5100A2ES support LX2160 with DDR4, the MC34VR5100A0EPR2 part number maps to the A0 configuration, which targets LS1012 and DDR3L only.
How is the MC34VR5100A0EPR2 programmed for custom voltage settings?
The MC34VR5100A0EPR2 uses One-Time Programmable (OTP) memory to store configuration data including output voltages, soft-start times, and startup sequence order. Programming occurs at wafer/test level using NXP's OTP programming tools and is finalized before shipment. End users cannot reprogram the OTP; however, runtime adjustments to SW1/SW2/SW3 voltages are supported via I²C commands during operation.
What thermal management provisions does the MC34VR5100A0EPR2 include?
The MC34VR5100A0EPR2 features an exposed thermal pad (EP) that must be soldered to inner/external ground planes via multiple vias for effective heat transfer. Its thermal resistance is specified as RθJA = 24 °C/W (4-layer board) and RθJB = 11 °C/W. Junction temperature is monitored internally, with thermal shutdown activated above +125 °C - a hard limit defined in the MC34VR5100A0EPR2 datasheet.
Can the MC34VR5100A0EPR2 operate without a coin cell connected?
Yes. The MC34VR5100A0EPR2 operates from 2.8 V to 4.5 V on VIN even without a coin cell. When LICELL is unconnected, minimum input voltage rises to 3.1 V; to maintain 2.8 V operation, tie LICELL to any stable 1.8–3.3 V system rail (e.g., V33 or LDO2 output). VSNVS remains functional from VIN, and RTC retains time via internal capacitor - though long-term backup requires the coin cell.
MC34VR5100A0EPR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- LS1 Communication Processors
- Current - Supply:
- 450µA
- Voltage - Supply:
- 2.8V ~ 4.5V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HVQFN (7x7)
MC34VR5100A0EPR2 FAQ
1.How can I place an order for MC34VR5100A0EPR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC34VR5100A0EPR2 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 MC34VR5100A0EPR2 reliable?
The price and inventory of MC34VR5100A0EPR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC34VR5100A0EPR2 is usually 5 days.
3.What payment methods are accepted for MC34VR5100A0EPR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC34VR5100A0EPR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC34VR5100A0EPR2?
MC34VR5100A0EPR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC34VR5100A0EPR2 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 MC34VR5100A0EPR2?
For technical support, including MC34VR5100A0EPR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC34VR5100A0EPR2 requirements.
6.How does Aetrix verify that MC34VR5100A0EPR2 is sourced from the original manufacturer or authorized distributors?
All MC34VR5100A0EPR2 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 MC34VR5100A0EPR2 meets industry standards.
7.What is the process for return or replacement of MC34VR5100A0EPR2?
All MC34VR5100A0EPR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC34VR5100A0EPR2, 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 MC34VR5100A0EPR2 part is unused and in its original packaging.
Return procedure for MC34VR5100A0EPR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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