PI3751-02-LGIZ - 60V 240W ZVS Buck-Boost Regulator | Vicor
部品番号: PI3751-02-LGIZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $58.4 | $58.40 |
| 10 | $55.12 | $551.20 |
| 100 | $51.85 | $5,185.00 |
| 500 | $48.3 | $24,150.00 |
| 1,000 | $45 | $45,000.00 |
PI3751-02-LGIZ 概要
What is a ZVS buck-boost regulator? A ZVS (Zero-Voltage Switching) buck-boost regulator is a switched-mode DC-DC topology which can both step down (buck) and step up (boost) its input voltage while maintaining a regulated output. ZVS means the power switches transition when the voltage across them is approximately zero, which dramatically reduces switching losses and EMI compared to hard-switched PWM converters. ZVS buck-boost regulators sit within the broader category hierarchy: DC-DC converter -> buck-boost converter -> ZVS regulator -> power management IC -> semiconductor. They are used when input voltage may swing above or below the desired output and high efficiency at high switching frequency is mandatory.
The PI3751-02-LGIZ delivers up to 240 W of output power from a compact surface-mount module, providing best-in-class power density for its power level. Its integrated ZVS topology allows high switching frequency operation with reduced EMI emissions, simplifying both input and output filtering requirements. The regulator supports adjustable output voltage configuration, enabling designers to set the rail voltage for downstream point-of-load converters, ASICs, or directly to system loads.
Typical applications include 48 V telecom and datacom point-of-load conversion, industrial 48 V bus regulation, high-performance computing and AI accelerator auxiliary rails, battery-backed 48 V systems, and LED driver power stages. The wide 38 V to 60 V input range makes it tolerant of transient drops on 48 V distribution buses, while the buck-boost capability allows a regulated output even when the input sags below or rises above the output setpoint.
When designing with this module, follow Vicor's layout and thermal guidance in the datasheet. Use the recommended input and output capacitance, observe the LGA land pattern and reflow profile, and ensure sufficient PCB copper area or forced airflow to keep the module within its thermal limits. Avoid paralleling multiple PI3751-02 modules without consulting Vicor application notes, since current sharing requires external circuitry.
ドロップイン代替品: PI3751-02-LGIZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PI3751-02-LGIZ （同一形状・フットプリント） — 相違点: Maximum Output Power, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
PI3751-00-LGIZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PI3751-02-LGIZ 最大定格＆電気的特性
| トポロジー | ZVS Buck-Boost |
| 入力電圧範囲 | 38 V to 60 V |
| Nominal Input Voltage | 48 V |
| Maximum Output Power | 240 W |
| Switching Topology | Zero-Voltage Switching (ZVS) |
| Integration Level | Module - controller, power switches, support components |
| 出力タイプ | Adjustable |
| 実装タイプ | Surface Mount (LGA SiP) |
| Package Type | LGA System-in-Package (LGIZ) |
PI3751-02-LGIZ lga system-in-package (lgiz) ピン配置ガイド
PI3751-02-LGIZ (lga system-in-package (lgiz) パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: PI3751-02-LGIZ.
詳細は データシート をご参照ください。
主な用途
PI3751-02-LGIZ の用途: 6 件s: 48V Telecom Point-of-Load Conversion, AI Accelerator Auxiliary Power, Industrial 48V Bus Regulation, Battery-Backed 48V Systems, High-Density Computing Power Stage, LED Driver Power Conversion.
48V Telecom Point-of-Load Conversion
The PI3751-02-LGIZ is ideal for 48V telecom point-of-load conversion because its 38-60V input window directly accepts the nominal 48V distribution bus while regulating an output suitable for downstream POL converters. The 240W output capacity drives ASIC core rails and high-current logic in central-office equipment. Compared to discrete designs, the integrated ZVS module reduces PCB area, EMI filter complexity, and time-to-market for telecom OEMs building -48V-tolerant systems.
おすすめ
AI Accelerator Auxiliary Power
The PI3751-02-LGIZ serves as an efficient auxiliary rail in AI accelerator and GPU server platforms where 48V distribution is becoming standard to reduce I^2R losses. Its 240W output supports memory, fan, and housekeeping rails adjacent to the main core converter. The ZVS topology minimizes EMI in dense compute boards where signal integrity and radiated emissions are critical, while the integrated module shrinks BOM and design risk.
おすすめ
Industrial 48V Bus Regulation
The PI3751-02-LGIZ fits industrial 48V bus regulation in factory automation, robotics, and heavy machinery where -48V or +48V distribution is common. Its 38-60V input tolerance handles motor-regeneration transients that push the rail above 60V, while the buck-boost capability maintains regulation during sags. The 240W output drives motor drivers, PLC backplanes, and industrial sensor power stages from a robust integrated module.
おすすめ
Battery-Backed 48V Systems
The PI3751-02-LGIZ supports battery-backed 48V systems including UPS modules, telecom backup power, and e-mobility auxiliary rails. The buck-boost topology regulates output across the full battery discharge curve from 38V (deep discharge) to 60V (float). The 240W output capacity handles battery-charger feedback loops and inverter auxiliary power with high ZVS efficiency and compact footprint.
おすすめ
High-Density Computing Power Stage
The PI3751-02-LGIZ functions as a high-density power stage in hyperscale computing, where 48V rack distribution minimizes copper losses. Its 240W output per module enables parallel architectures driving CPU/GPU core rails. ZVS switching reduces EMI in dense server boards, while the LGA SiP footprint enables finer pitches and column-density power delivery than discrete solutions for next-generation compute platforms.
おすすめ
LED Driver Power Conversion
The PI3751-02-LGIZ supports high-power LED driver conversion in stage lighting, architectural lighting, and horticultural grow lights running from 48V distribution. Its buck-boost regulation keeps constant LED current despite 38-60V input swings, and the 240W output drives long LED strings. ZVS operation keeps EMI low, easing FCC/CE compliance for commercial lighting fixtures powered by 48V rails.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PI3751-02-LGIZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PI3751-00-LGIZ |
|---|---|---|
| Brand | Vicor | Vicor |
| Package | LGA SiP (LGIZ) | LGA SiP (LGIZ) - same |
| Topology | ZVS Buck-Boost | ZVS Buck-Boost |
| Input Voltage Range | 38 V to 60 V | 38 V to 60 V |
| Maximum Output Power | 240 W | 200 W (-17%) |
| Nominal Input Voltage | 48 V | 48 V |
| Output Type | Adjustable | Adjustable |
| Mounting Type | Surface Mount (LGA) | Surface Mount (LGA) |
主な差別化要因
- Higher 240 W output versus PI3751-00's 200 W （vs PI3751-00-LGIZ)
- ZVS topology integrated into SiP （vs PI3751-00-LGIZ)
設計ノート
Estimated: at 240 W output from 48 V input, full-load efficiency of approximately 96% (typical for Vicor ZVS modules) implies roughly 10 W dissipation inside the LGA SiP. Provide a minimum 1 square inch of top-side copper pour plus 200 mL of forced airflow to stay within the datasheet thermal limits; without forced airflow, derate output power by 30-40%.
Follow Vicor's recommended land pattern exactly as shown in the PI3751-02 datasheet mechanical drawing. Use multiple inner Vias under GND pads to stitch the module's thermal pad to internal ground planes. Place input bulk capacitors within 5 mm of the VIN pads and output capacitors within 5 mm of VOUT pads to minimize switching-node ringing and reduce EMI.
Do not exceed the 60 V maximum input voltage, including transients - add a TVS clamp or input fuse rated above 60 V to protect the module from load-dump events on 48 V industrial buses. Do not operate below 38 V input - the buck-boost regulation will fail and the module may not start cleanly. Always observe the datasheet reflow profile for the LGA SiP to avoid damaging the land-grid solder joints.
コンプライアンス情報
Compliance information not stated in the verified web data; consult the Vicor datasheet environmental section or contact Vicor directly.
