PI3542-00-LGIZ - 48V ZVS Buck Regulator, 2.5V/10A | Vicor
料号： PI3542-00-LGIZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $25.5 | $25.50 |
| 10 | $23.2 | $232.00 |
| 100 | $20.75 | $2,075.00 |
| 500 | $18.4 | $9,200.00 |
| 1,000 | $16.1 | $16,100.00 |
PI3542-00-LGIZ 概述
What is a ZVS buck regulator? A ZVS (Zero-Voltage Switching) buck regulator is a type of synchronous step-down (buck) DC-DC converter topology that switches the high-side MOSFET when the drain-source voltage is approximately zero, eliminating switching losses in the hard-switching transition. This topology belongs to the soft-switching DC-DC converter family and is widely used in high-input-voltage, high-density point-of-load applications where efficiency, thermal performance, and small PCB area are critical.
Key features include: peak efficiency above 95% across the load range, parallel operation with current sharing, internal MOSFET power switches and inductor, integrated controller, and over-current/over-temperature protection. The PI3542-00-LGIZ integrates controller, power switches, and support components all within the SiP, eliminating the need for an external power inductor.
Typical applications include 48V direct-to-point-of-load conversion in telecom, datacom, industrial, and high-end computing systems where a 12V intermediate bus is bypassed. The wide 36V-60V input range also supports nominal 48V telecom rails, industrial battery systems, and distributed power architectures.
When designing with this device, follow Vicor's PCB layout guidelines for the LGA SiP land pattern and thermal management. Maintain at least 6A continuous airflow over the package, or use a heatsink, to ensure reliable operation. The PI3542-00-LGIZ is part of the PI354x-00 family sharing the same footprint for different output voltages.
This page synthesizes distributor pricing, drop-in same-package family variants, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PI3542-00-LGIZ ——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： PI3542-00-LGIZ （相同外形与封装尺寸） ——差异在于 Protection Features, RoHS Status, Synchronous Rectifier, Topology.
快速对比工具——选择替代料号进行并排对比：
PI3543-00-LGIZ
✅ 直接替换✓ 有现货
$12.18 / 个
查看数据手册 →PI3544-00-LGIZ
✅ 直接替换📋 参考替代料（不在目录中）
PI3545-00-LGIZ
✅ 直接替换📋 参考替代料（不在目录中）
PI3542-00-LGIZ 最大额定值与电气特性
| 拓扑 | Buck (Step-Down) ZVS |
| 功能 | DC-DC Switching Regulator |
| 输入电压范围 | 36 V to 60 V |
| 输出电压 | 2.5 V (fixed/adjustable, 2.2 V option) |
| 输出电流（最大） | 10 A |
| Efficiency (Peak) | > 95% (per Vicor datasheet family) |
| Package / Mounting | 85-BLGA SiP Module, Surface Mount |
| 引脚数量 | 85 (BGA) |
| Internal Switches | Yes (integrated MOSFET + inductor) |
| 同步整流器 | Yes |
| Protection Features | Over-current, Over-temperature, UVLO |
| Parallel Operation | Supported (current sharing) |
| RoHS 状态 | Compliant (per Vicor product page) |
| Series / Family | PI354x-00 Cool-Power ZVS Buck |
PI3542-00-LGIZ 85-blga sip module, surface mount 引脚配置指南
PI3542-00-LGIZ（85-blga sip module, surface mount 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： PI3542-00-LGIZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PI3542-00-LGIZ 适用于 6 应用s: 48V Telecom Point-of-Load Conversion, Datacom and Server Power Distribution, Industrial 48V Battery and Bus Systems, LED Driver and High-Brightness Lighting, Test and Measurement Equipment, High-End Computing and AI Accelerator Cards.
48V Telecom Point-of-Load Conversion
The PI3542-00-LGIZ is designed for direct 48V-to-2.5V conversion in telecom base stations and central-office equipment, eliminating the intermediate 12V bus. Its 36V-60V input range covers the full ETSI/ANSI 48V telecom rail envelope including transient excursions, while the integrated ZVS topology delivers above 95% peak efficiency and below 1% output ripple - critical for powering low-voltage ASICs, network processors, and SerDes PHYs that demand clean point-of-load rails.
推荐
Datacom and Server Power Distribution
In hyperscale datacom and server racks, the PI3542-00-LGIZ enables direct 48V bus-to-2.5V point-of-load conversion, bypassing traditional 12V intermediate stages. This architecture reduces distribution losses by 4x compared to 12V-bus designs and supports the 2.5V core rails of modern CPUs, FPGAs, and memory. The part's parallel-operation capability allows two units to share load current at 20A, addressing high-current ASIC requirements with a compact SiP footprint.
推荐
Industrial 48V Battery and Bus Systems
The PI3542-00-LGIZ suits industrial 48V battery systems, factory automation PLCs, and 48V-distributed robotics buses where a compact, high-efficiency step-down to 2.5V logic is required. Its 36V-60V steady-state input range handles battery charge variations and bus transients, while the integrated inductor SiP simplifies PCB layout in space-constrained industrial enclosures. Over-current and over-temperature protection ensure robust operation in harsh industrial environments with ambient temperatures up to the part's rated maximum.
推荐
LED Driver and High-Brightness Lighting
The PI3542-00-LGIZ belongs to Vicor's Cool-Power ZVS Buck Regulator & LED Driver family and can drive high-brightness LED strings from a 48V supply with constant-current control via the feedback loop. Its high switching frequency and integrated inductor reduce the size of output filtering, while the ZVS topology keeps EMI low - critical in lighting fixtures where conducted emissions must meet FCC/CISPR standards. The wide 36V-60V input accepts any standard 48V LED-driver input source.
推荐
Test and Measurement Equipment
Bench-top and rack-mount test equipment often requires clean, isolated low-voltage rails for analog signal conditioning, ADC/DAC references, and FPGA control logic. The PI3542-00-LGIZ provides 2.5V at 10A from a 48V bench supply with above 95% efficiency and integrated magnetics, reducing PCB area by approximately 50% compared to discrete buck designs. The SiP's predictable thermal performance enables fanless designs in quiet laboratory environments.
推荐
High-End Computing and AI Accelerator Cards
AI accelerator cards and GPU compute modules increasingly adopt 48V direct-to-POL architectures to reduce distribution losses. The PI3542-00-LGIZ provides 2.5V at 10A from a 48V input in a compact 85-BLGA SiP, suitable for powering ASIC control logic, monitoring ICs, and auxiliary rails on high-current accelerator boards. Its parallel-operation capability enables scaling to higher currents by stacking units on the same output rail with current sharing.
推荐
推荐产品汇总
工程参考数据： PI3542-00-LGIZ ——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 | PI3543-00-LGIZ | PI3544-00-LGIZ | PI3545-00-LGIZ |
|---|---|---|---|---|
| Brand | Vicor | Vicor - same | Vicor - same | Vicor - same |
| Package | 85-BLGA SiP | 85-BLGA SiP - same | 85-BLGA SiP - same | 85-BLGA SiP - same |
| Output Voltage | 2.5 V | 3.3 V | 5.0 V | 12 V |
| Output Current | 10 A | 10 A | 10 A | 10 A |
| Input Voltage Range | 36 V to 60 V | 36 V to 60 V | 36 V to 60 V | 36 V to 60 V |
| Topology | ZVS Buck | ZVS Buck | ZVS Buck | ZVS Buck |
| Integrated Inductor | Yes | Yes | Yes | Yes |
| Parallel Operation | Yes (current sharing) | Yes (current sharing) | Yes (current sharing) | Yes (current sharing) |
关键差异点
- Only PI354x family member at 2.5V output （对比 PI3543-00-LGIZ)
- Integrated magnetics in SiP （对比 Discrete 48V buck solutions)
- ZVS soft-switching topology （对比 Hard-switched buck converters)
设计说明
The PI3542-00-LGIZ SiP dissipates approximately (60V-2.5V)*10A = 575W at maximum load in worst-case continuous operation; in typical 48V-to-2.5V/10A designs the dissipation is closer to (48-2.5)*10 = 455W input minus 25W output = around 5-8W. Estimated: at 5W dissipation and 25 C/W theta-JA, junction temperature rises 125 C above ambient. Provide at least 100 LFM airflow or attach a heatsink for full-load operation at elevated ambient.
Use the land pattern recommended in the Vicor PI354x-00 datasheet for the 85-BLGA SiP. Place input capacitors within 5mm of the input BGA balls and output capacitors within 5mm of the output balls. Use a top-layer copper flood under the SiP for thermal spreading and stitch vias to inner thermal planes. Avoid routing signal traces under the SiP pad array.
Do not exceed the 60V maximum input voltage, even transiently - the PI3542-00-LGIZ is designed for SELV-compliant systems limited to 60V steady-state. Ensure input fusing or TVS protection for hot-plug events where the 48V bus may ring above 60V during connector mating.
合规信息
RoHS compliant per Vicor product page and distributor listings (DigiKey, Mouser). Industrial grade part - not AEC-Q100 qualified. For automotive applications consult Vicor for AEC-Q100 variants.
