MC34708VKR2 - PMIC for i.MX50/53, 6 Buck, 8 LDO | NXP
料号： MC34708VKR2 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.08 | $8.08 |
| 10 | $7.55 | $75.50 |
| 100 | $6.92 | $692.00 |
| 500 | $6.4 | $3,200.00 |
| 1,000 | $5.95 | $5,950.00 |
MC34708VKR2 概述
A Power Management IC (PMIC) is a specialized power management device that integrates multiple voltage regulators, supervisory functions, and conversion circuits into a single chip. In the system hierarchy, a PMIC sits above individual DC-DC converters and LDOs, providing a complete multi-rail power solution that sequences, regulates, and monitors all supply rails required by an applications processor and its memory subsystem.
Key features of the MC34708VKR2 include six buck converters that generate the core, memory, and I/O rails of the i.MX50/i.MX53 with high efficiency, eight LDOs for analog and low-noise rails, and a 10-bit ADC for battery voltage, current, and temperature monitoring. Switching regulators reduce power loss compared to linear-only solutions, which is critical for battery-operated multi-media devices. Integrated power sequencing and control via I2C allow the processor to reconfigure rails dynamically for power-save modes.
Architecturally, the MC34708 implements multi-phase and single-phase buck topologies with programmable output voltages, and a charger block that manages USB or adapter input for single-cell Li-Ion batteries. The digital interface enables runtime voltage scaling, a feature heavily used by i.MX DVFS (Dynamic Voltage and Frequency Scaling) firmware.
Typical applications include i.MX50/i.MX53-based tablet and e-reader designs, portable multimedia players, industrial HMI terminals, and embedded single-board computers requiring precisely sequenced multi-rail power. Note that NXP recommends the MMPF0100 or MC34709 for new designs, as the i.MX50/53 processors are mature and the MC34708 is in end-of-life status.
Design consideration: verify that your software platform supports the MC34708 register map before hardware reuse; PMIC firmware dependencies often block direct substitution even when electrical parameters match.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MC34708VKR2 ——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： MC34708VKR2 （相同外形与封装尺寸） ——差异在于 Battery Charger, Packaging, Product Type.
快速对比工具——选择替代料号进行并排对比：
MC34708VM
✅ 直接替换📋 参考替代料（不在目录中）
MC34708VK
✅ 直接替换📋 参考替代料（不在目录中）
MC34708AKR2
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC34708VKR2 最大额定值与电气特性
| Product Type | Power Management IC (PMIC) |
| Target Processor | NXP i.MX50 / i.MX53 families |
| Buck Regulators | 6 |
| LDO Regulators | 8 |
| ADC Resolution | 10-bit |
| 输入电压范围 | 1.8 V to 4.5 V |
| 封装 / 外壳 | 206-MAPBGA (8x8 mm) |
| Packaging | Tape & Reel |
| Applications | General Purpose (i.MX50/i.MX53 power) |
| 接口 | I2C control interface |
| Battery Charger | Integrated single-cell Li-Ion charger |
| Status | Not recommended for new designs - NXP recommends MMPF0100 or MC34709 |
| 安装类型 | Surface Mount |
MC34708VKR2 206-mapbga (8x8 mm) 引脚配置指南
MC34708VKR2（206-mapbga (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： MC34708VKR2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC34708VKR2 适用于 6 应用s: i.MX50/i.MX53 Tablet and E-Reader Power, Portable Multimedia Players, Industrial HMI Terminals, Battery-Charged Handheld Instruments, Embedded Single-Board Computers (SBC), Smart Home and Connected Display Nodes.
i.MX50/i.MX53 Tablet and E-Reader Power
The MC34708VKR2 was purpose-built as the complete power tree for NXP i.MX50 and i.MX53 applications processors. Its 6 buck converters generate the ARM core, DDR memory, and I/O rails with high switching efficiency, while the 8 LDOs supply noise-sensitive analog domains such as PLLs, PHYs, and display interfaces. The 1.8V to 4.5V input range matches single-cell Li-Ion battery operation directly. Integration of the charger, coin-cell backup, and 10-bit ADC monitoring removes several discrete ICs from the board, cutting BOM area in space-constrained tablet form factors. Because the processor scales voltage and frequency dynamically, the I2C-programmable rail voltages let firmware implement DVFS power saving, extending battery runtime without hardware changes.
推荐
Portable Multimedia Players
Multimedia players based on i.MX53 demand multiple sequenced rails for the processor core, DDR memory, display, audio codecs, and storage. The MC34708VKR2 delivers this from one 206-MAPBGA device: buck regulators handle high-current core and memory loads efficiently, while LDOs keep audio and analog rails free of switching ripple, preserving audio signal quality. The 10-bit ADC enables battery voltage and temperature telemetry so firmware can display accurate charge state and protect the cell. With input range 1.8V to 4.5V, it connects directly to the Li-Ion pack. Sequencing logic inside the PMIC guarantees the processor power-up order, eliminating external supervisor circuitry and reducing bring-up risk in cost-sensitive consumer designs.
推荐
Industrial HMI Terminals
Industrial human-machine interface panels built on i.MX53 require robust, well-sequenced power for long-duty-cycle operation. The MC34708VKR2 provides the full processor power tree with integrated monitoring: the ADC tracks battery or rail conditions, and programmable LDOs isolate sensitive display and touch-controller supplies from buck switching noise. The integrated charger supports battery-backed portable operation during line-power loss. Its single compact 206-MAPBGA (8x8 mm) footprint simplifies layout in HMI bezels where board area is limited. Engineers should note that for new industrial designs NXP recommends migrating to MMPF0100 or MC34709 with the newer i.MX processors, reserving the MC34708VKR2 for sustaining existing deployments.
推荐
Battery-Charged Handheld Instruments
Handheld measurement and data-collection instruments using i.MX processors benefit from the MC34708VKR2's integrated charger and 10-bit ADC. The charger block manages single-cell Li-Ion charging from USB or adapter sources within the 1.8V to 4.5V input window, while the six buck converters and eight LDOs power the processor, display, radios, and analog front ends with the appropriate efficiency and noise trade-off per rail. ADC monitoring of pack voltage, current sense, and temperature enables safe charge termination and thermal protection in sealed enclosures. Because all rails are I2C-adjustable, the same PMIC supports multiple instrument SKUs with different display and radio configurations without changing the power hardware.
推荐
Embedded Single-Board Computers (SBC)
Compact SBCs around the i.MX53 processor use the MC34708VKR2 as a single-chip power subsystem. The PMIC generates all required rails - core, DDR3 memory, NVCC I/O, and analog domains - with correct sequencing, which is one of the most error-prone parts of i.MX board design. Switch-mode conversion at the high-current rails keeps thermal load low enough for passively cooled enclosures, while the 10-bit ADC gives the system controller visibility into supply health for predictive diagnostics. Designers reusing proven i.MX50/53 SBC layouts can maintain production with this device; for new SBC projects, pairing a current-generation i.MX with the NXP-recommended MMPF0100 PMIC is the safer long-term choice.
推荐
Smart Home and Connected Display Nodes
Connected control panels and smart-display nodes built on i.MX53 combine mains, battery, and wireless subsystems. The MC34708VKR2 integrates the power conversion, charging, and monitoring needed for such nodes in one 8x8 mm device. Its LDO rails provide clean supply to RF modules and touch screens where switching ripple would degrade sensitivity, and the buck converters efficiently carry the processor's dynamic load. The I2C interface allows the main processor to power-gate unused subsystems between user interactions, cutting standby consumption. As these products typically have multi-year production lives, the EOL status of the MC34708 must be factored into last-time-buy planning for the fleet.
推荐
推荐产品汇总
工程参考数据： MC34708VKR2 ——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 | MC34708VM | MC34708VK | MC34708AKR2 |
|---|---|---|---|---|
| Package | 206-MAPBGA (8x8 mm) | 206-MAPBGA (8x8 mm) - same | 206-MAPBGA (8x8 mm) - same | 206-MAPBGA (8x8 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Target Processor | i.MX50 / i.MX53 | i.MX50 / i.MX53 | i.MX50 / i.MX53 | i.MX50 / i.MX53 |
| Buck Regulators | 6 | 6 | 6 | 6 |
| LDO Regulators | 8 | 8 | 8 | 8 |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit |
| Input Voltage Range | 1.8 V to 4.5 V | 1.8 V to 4.5 V | 1.8 V to 4.5 V | 1.8 V to 4.5 V |
关键差异点
- Complete i.MX50/53 power solution in one chip （对比 MMPF0100)
- Tape & Reel packaging for automated assembly （对比 MC34708VK)
- Integrated battery charger and 10-bit monitoring ADC （对比 Discrete converter solutions)
设计说明
The MC34708VKR2 is i.MX50/53-specific: its rail definitions and I2C register map are tightly coupled to the processor's power-management firmware. Boards migrating to MMPF0100 or MC34709 as NXP recommends cannot simply swap the IC - the package, ball map, and register interface all differ. Verify that your bootloader and OS power-driver device tree reference the correct PMIC before any board revision or replacement sourcing decision.
The 1.8V to 4.5V input range is sized for single-cell Li-Ion operation. Feed the PMIC directly from the battery pack and, if a 5V USB input is used, ensure the charger front end manages the pass device - do not apply 5V directly to rails rated for the battery domain. Check per-rail current budgets in the datasheet tables against your i.MX50/53 worst-case core frequency load before finalizing inductor and capacitor selection.
For a 206-ball MAPBGA, place the buck converter input capacitors and inductors close to their respective balls, and use solid power planes under the package for the high-current core and memory rails. Follow the NXP reference design layout for the i.MX50/53 EVK power section, including via stitching for thermal relief of the BGA. Separate analog LDO outputs from buck switching nodes on inner layers to keep noise out of the 10-bit ADC measurement inputs.
Because this part is EOL, plan a last-time-buy sized to your remaining product life plus field-service attrition, and qualify MC34708VM/MC34708VK same-family variants as authorized secondary ordering options for supply flexibility. Track stock at DigiKey, Mouser, and LCSC, and document an MMPF0100-based redesign path for any program extending beyond available inventory.
合规信息
Compliance status not stated in the provided verified web data; confirm on the official NXP product page for the specific suffix.
