MC34VR500V8ES - Quad Buck + 5 LDO PMIC for QorIQ | NXP
料号： MC34VR500V8ES ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $11.46 | $11.46 |
| 10 | $10.31 | $103.10 |
| 100 | $9.16 | $916.00 |
| 500 | $8.01 | $4,005.00 |
| 1,000 | $6.87 | $6,870.00 |
MC34VR500V8ES 概述
A PMIC (Power Management IC) is a highly integrated power supply ASIC that combines multiple voltage regulators (switching buck converters and low-dropout linear regulators), supervisory functions, and digital control into one package. PMICs are widely used in networking processors, SoCs, and FPGAs where multiple independent voltage rails must be generated, sequenced, and dynamically scaled in response to load or operating mode changes. They sit at the top of the power management hierarchy: PMIC > multi-channel regulator > DC/DC converter + LDO > power management.
Key features include four integrated buck converters with internal MOSFETs, five user-programmable LDOs with adjustable output, adjustable current limiting on each rail, adjustable soft-start, dynamic voltage scaling (DVS), light-load efficiency mode, power-on sequencing control, and I²C programmability. The device is qualified to automotive temperature range (-40 °C to +105 °C), making it suitable for harsh industrial and automotive networking environments.
The MC34VR500V8ES uses SMARTMOS technology from NXP's automotive-grade mixed-signal process. Internal power MOSFETs are sized for the 4.5 A peak buck output, eliminating external switches. Closed-loop digital trimming via I²C allows output setpoints to be tuned at ATE or in-system. Built-in protections include overcurrent protection (OCP), thermal shutdown, and undervoltage lockout.
Typical applications include QorIQ LS1/T1 communications processor platforms, industrial networking switches/routers, automotive telematics and gateway ECUs, smart-grid/industrial control, and any multi-rail SoC system requiring tightly-sequenced power-up. Pairing this PMIC with a QorIQ LS1021A or T1024 processor provides a single-supply power solution.
When designing with this part, follow NXP's reference design for proper inductor selection, output capacitor choice, and PCB layout of the exposed pad (EP). The EP must be soldered to a sufficient ground copper pour for thermal dissipation. I²C programming must follow the MC34VR500 register map exactly, including write-protect unlocking before any register modification.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet, including automotive grade comparison and cross-reference guidance for hard-to-source NXP PMICs.
直接替换替代料： MC34VR500V8ES ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC34VR500V8ES （相同外形与封装尺寸） ——差异在于 Input Voltage Range, Operating Temperature Range, Output Voltage Programming, Package, Target Processor.
快速对比工具——选择替代料号进行并排对比：
MC34VR500V9ES
✅ 直接替换📋 参考替代料（不在目录中）
MC34VR500VAES
✅ 直接替换📋 参考替代料（不在目录中）
MC34PF3001A7EP
✅ 直接替换✓ 有现货
$5.2 / 个
查看数据手册 →MC34VR500V8ES 最大额定值与电气特性
| 拓扑 | Quad Buck + 5 LDO PMIC |
| Number of Buck Outputs | 4 (integrated MOSFETs) |
| Number of LDO Outputs | 5 (user-programmable) |
| Maximum Buck Output Current | 4.5 A (main buck) |
| 输入电压范围 | -0.3 V to 4.8 V (per datasheet absolute max) |
| Output Voltage Programming | User-programmable via I²C |
| 开关频率 | User-programmable via I²C |
| Turn-on Sequencing | Programmable via I²C |
| Dynamic Voltage Scaling | Yes (DVS) |
| Adjustable Soft-Start | Yes (per output) |
| Adjustable Current Limiting | Yes (per output) |
| Light-Load Efficiency Mode | Yes |
| Power-On Timing Control | Yes |
| 过流保护 | Yes (per rail) |
| Programmable Interface | I²C |
| 工作温度范围 | -40 °C to +105 °C (automotive) |
| 封装 | 56-pin QFN-EP (HVQFN EP), 8x8 mm |
| 安装类型 | Surface Mount |
| Target Processor | QorIQ LS1/T1 family |
| RoHS 状态 | Compliant |
MC34VR500V8ES 56-pin qfn-ep (hvqfn ep), 8x8 mm 引脚配置指南
MC34VR500V8ES（56-pin qfn-ep (hvqfn ep), 8x8 mm 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： MC34VR500V8ES.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC34VR500V8ES 适用于 6 应用s: QorIQ LS1/T1 Communications Processor Power, Industrial Networking Switch / Router, Automotive Telematics and Gateway ECU, Smart Grid and Industrial Control Platform, Single-Board Computer (SBC) for Embedded Networking, Edge Server / Micro-Datacenter Node.
QorIQ LS1/T1 Communications Processor Power
The MC34VR500V8ES is purpose-built for NXP QorIQ LS1/T1 processors (e.g., LS1021A, T1024). Its 4.5 A main buck delivers the processor core rail while the 5 LDOs supply DDR, PLL, and peripheral rails. Output voltages, switching frequency, and turn-on sequence are I²C programmable to match QorIQ LS1/T1 power-up requirements exactly. NXP reference designs pre-validate this pairing, reducing time-to-market for networking platforms.
推荐
Industrial Networking Switch / Router
Multi-rail industrial switches and routers need a single, reliable PMIC to power the SoC plus PHY, SERDES, and DDR memory. The MC34VR500V8ES integrates 4 switching bucks plus 5 LDOs in one 8x8 mm QFN-EP, dramatically reducing BOM count and PCB area versus discrete regulators. Its -40 °C to +105 °C automotive-grade temperature range handles harsh factory-floor environments, and per-rail OCP isolates faults to prevent system-wide brownouts.
推荐
Automotive Telematics and Gateway ECU
The MC34VR500V8ES is AEC-qualified (operating -40 °C to +105 °C) and explicitly tagged for automotive use by Arrow Electronics. In a vehicle gateway ECU or telematics control unit, it powers the QorIQ communications processor while DVS (dynamic voltage scaling) reduces quiescent draw when the vehicle is parked. Adjustable soft-start prevents inrush on the 12 V automotive battery rail during cranking transients.
推荐
Smart Grid and Industrial Control Platform
Substation gateways, IEC 61850 IEDs, and industrial controllers require deterministic multi-rail power-up. The MC34VR500V8ES provides programmable power-on sequencing and per-rail OCP, ensuring the processor initializes only after all rails are stable. Light-load efficiency mode extends operating life in battery-backed grid sensors. The wide -40 °C to +105 °C range handles outdoor cabinet temperatures.
推荐
Single-Board Computer (SBC) for Embedded Networking
SBC designers targeting the QorIQ LS1/T1 family can drop in the MC34VR500V8ES and immediately gain a pre-validated power tree with I²C telemetry. The 8x8 mm QFN-EP keeps the power section under 100 mm², freeing board area for memory and I/O. I²C programmability allows field firmware to retune output voltages without hardware rework when migrating between QorIQ LS1 and T1 variants.
推荐
Edge Server / Micro-Datacenter Node
Edge nodes housing a QorIQ LS1021A for accelerated packet processing benefit from the MC34VR500V8ES's high 4.5 A buck capacity and tight sequencing, ensuring deterministic core-rail ramp-up before DDR initialization. The integrated MOSFETs eliminate bulky external switches, allowing dense edge-server layouts. DVS supports dynamic power capping across fluctuating network loads.
推荐
推荐产品汇总
工程参考数据： MC34VR500V8ES ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC34VR500V9ES | MC34VR500VAES | MC34PF3001A7EP |
|---|---|---|---|---|
| Package | 56-QFN-EP (8x8 mm) | 56-QFN-EP (8x8 mm) - same | 56-QFN-EP (8x8 mm) - same | QFN-EP (HVQFN) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (legacy Freescale) | NXP Semiconductors |
| Topology | 4 Buck + 5 LDO | 4 Buck + 5 LDO | 4 Buck + 5 LDO | Multi-rail PMIC (different rail map) |
| Target Processor | QorIQ LS1/T1 | QorIQ LS1/T1 | QorIQ LS1/T1 | i.MX 6 / LS1 family |
| I²C Programmability | Yes (Vout, Fsw, sequencing) | Yes | Yes | Yes |
| Automotive Grade | Yes (-40 to +105 °C) | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active (legacy Freescale brand) | Active |
关键差异点
- Native QorIQ LS1/T1 reference-platform validation （对比 MC34PF3001A7EP)
- Pin-compatible within the MC34VR500 family （对比 MC34VR500V9ES)
- Single-IC replacement vs TI discrete re-architecture （对比 TPS54331 + TPS7A LDO stack (TI alternative))
设计说明
The 56-pin QFN-EP package dissipates heat through the central exposed pad. According to the MC34VR500 datasheet, the EP must be soldered to a ground copper pour of at least 1 square inch with an array of thermal vias (typically 9-12 vias, 0.3 mm drill, 1.0 mm pitch) connecting to inner ground planes. Without proper EP soldering the junction will overheat at full 4.5 A load. Estimated: at 4.5 A and 1.0 V dropout, expect ~4.5 W dissipation - verify with the datasheet's thermal-resistance table.
Place the buck input capacitors as close as possible to the VIN pins and PGND, with wide, short copper pours to minimize switching-node ringing. According to NXP's reference design guidelines for the MC34VR500 family, each buck output requires a low-ESR ceramic output capacitor plus a smaller high-frequency bypass cap. Keep the switching-node copper area small to reduce EMI, and route feedback traces away from switching nodes to avoid noise coupling into the regulation loop.
Do not modify MC34VR500V8ES I²C registers before unlocking the write-protect per the datasheet register map - locked writes are silently ignored. According to NXP, the default output setpoints target the standard QorIQ LS1021A configuration; if you change setpoints, revalidate soft-start timing to avoid inrush faults. Also verify the I²C slave address - the MC34VR500 supports multiple addresses for multi-PMIC systems.
合规信息
AEC-qualified per Arrow Electronics product description ('Automotive 56-Pin HVQFN EP') and LCSC listing. RoHS compliant per NXP product page. -40 to +105 °C operating range indicates automotive Grade-1 qualification.
