PI3751-02-LGIZ - 60V 240W ZVS Buck-Boost Regulator | Vicor
Référence : PI3751-02-LGIZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour PI3751-02-LGIZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PI3751-02-LGIZ (même facteur de forme et même empreinte) — différant par Maximum Output Power, Mounting Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PI3751-00-LGIZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PI3751-02-LGIZ Valeurs maximales et caractéristiques électriques
| Topologie | ZVS Buck-Boost |
| Plage de tension d'entrée | 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 |
| Type de sortie | Adjustable |
| Type de montage | Surface Mount (LGA SiP) |
| Package Type | LGA System-in-Package (LGIZ) |
Guide de configuration des broches du PI3751-02-LGIZ lga system-in-package (lgiz)
Configuration des broches du PI3751-02-LGIZ (boîtier lga system-in-package (lgiz)). Ce composant de puissance comporte des bornes de grille, de drain et de source. Pour les boîtiers non polarisés, consultez la fiche technique du fabricant pour l'orientation exacte de la broche 1 et les détails de l'empreinte. Les applications courantes incluent la conception d'alimentations, la commande de moteurs et la commutation de charges.
Aucune donnée de brochage détaillée disponible pour PI3751-02-LGIZ.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
PI3751-02-LGIZ convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PI3751-02-LGIZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- Higher 240 W output versus PI3751-00's 200 W (vs PI3751-00-LGIZ)
- ZVS topology integrated into SiP (vs PI3751-00-LGIZ)
Notes de conception
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.
Informations de conformité
Compliance information not stated in the verified web data; consult the Vicor datasheet environmental section or contact Vicor directly.
