PI3755-01-LGIZ - 38-60V ZVS Buck-Boost 160W | Vicor
N.º da peça: PI3755-01-LGIZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $75 | $75,00 |
| 10 | $70.5 | $705,00 |
| 100 | $65.25 | $6.525,00 |
| 500 | $60 | $30.000,00 |
| 1.000 | $56.5 | $56.500,00 |
PI3755-01-LGIZ Visão geral
A buck-boost regulator is a non-isolated DC-DC converter that can step an input voltage either up (boost) or down (buck) to produce a regulated output that may sit above, below, or equal to the input rail. Within the broader hierarchy of DC-DC converters -> switching regulators -> power management ICs (PMICs) -> semiconductors, the PI3755-01 sits alongside Vicor's larger family of ZVS buck, boost, and buck-boost regulators designed for point-of-load and intermediate bus conversion in distributed power architectures.
Key features include Vicor's proprietary Zero-Voltage Switching (ZVS) architecture, which enables high-frequency operation while minimizing switching losses and maximizing efficiency. The ZVS topology sustains high switching frequency up to the rated input voltage, reduces the size of external filtering components, improves power density, and enables very fast dynamic response to line and load transients. Compared with conventional hard-switched converters, the soft-switching behavior of the PI3755-01 keeps switching-related EMI lower and efficiency higher across the operating range.
The PI3755-01 is part of the PI37xx Cool-Power ZVS regulator family, all of which use the same System-in-Package building blocks. The high integration, tight control loop, and high switching frequency make the part well-suited to applications that demand compact point-of-load conversion in telecom, industrial, and high-density computing environments where intermediate 48 V bus distribution is common and 12 V/24 V/36 V loads need efficient conversion.
Typical applications include 48 V telecom intermediate bus conversion, industrial 48 V robotics and motor drives, high-end computing and graphics-card auxiliary rails, and distributed power architectures stepping 48 V down to 24 V or 12 V. Designers typically place the PI3755-01 directly at the load to take advantage of its high power density and fast transient response.
A key design consideration is thermal management: although the SiP is highly integrated, dissipating up to ~36 W of loss at full 160 W load still requires a substantial PCB copper pour or heatsink to keep the LGA junction-to-ambient thermal resistance within the datasheet limits.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Alternativas drop-in para PI3755-01-LGIZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PI3755-02-LGIZ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PI3755-01
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PI3755-01-LGIZ
✅ Drop-In✓ Em estoque
$56.5 / unidade
Ver ficha técnica →PI3755-01-LGIZ Classificações máximas e características elétricas
| Topologia | Buck-Boost (non-isolated) |
| Switching Architecture | ZVS (Zero-Voltage Switching) |
| Faixa de tensão de entrada | 38 V to 60 V |
| Output Power (Continuous) | 160 W |
| Output Power (Datasheet Figure) | 124.2 W |
| Tensão de saída | Adjustable (Positive) |
| Número de saídas | 1 |
| Encapsulamento | LGA-71 (71-BLGA Module, SiP) |
| Tipo de montagem | Surface Mount |
| Integrated Components | Controller + power switches + support passives (SiP) |
| External Components Required | Inductor + minimal ceramic capacitors |
| Product Family | Cool-Power PI37xx ZVS Buck-Boost |
| Module Type | DC-DC Regulated Power Supply Module (Hybrid) |
| Operating Mode | High-frequency ZVS switching |
| Status RoHS | Compliant (per Vicor product page) |
| Lead Free | Yes |
Guia de Configuração de Pinos do PI3755-01-LGIZ lga-71 (71-blga module, sip)
Configuração de pinos para PI3755-01-LGIZ (pacote lga-71 (71-blga module, sip)). Este dispositivo de potência possui terminais de gate, drain e source. Para pacotes não polarizados, consulte o datasheet do fabricante para a orientação exata do pino 1 e detalhes do footprint. Aplicações comuns incluem projeto de fontes de alimentação, acionamento de motores e comutação de cargas.
Nenhum dado detalhado de pinagem disponível para PI3755-01-LGIZ.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
PI3755-01-LGIZ é adequado para 7 aplicaçãos: 48 V Telecom Intermediate Bus Conversion, Industrial 48 V Robotics and Motor Drives, High-Density Computing and Graphics Card Auxiliary Rails, Distributed Power Architecture 48 V to 24 V/12 V, LED Lighting and High-Power Stage Lighting, Battery Energy Storage and 48 V E-Bike / E-Mobility Auxiliary Rails, Test and Measurement Bench Power.
48 V Telecom Intermediate Bus Conversion
The PI3755-01-LGIZ is purpose-built for stepping a 48 V telecom bus to a regulated load rail with 160 W of continuous power. Its 38 V to 60 V input window exactly covers the ETSI/ATIS telecom nominal 48 V bus including transient excursions, and its ZVS buck-boost topology lets the output sit above or below the input for flexible system design. Placed directly on the system board, the SiP replaces a discrete buck-plus-boost cascade, reduces BOM count by integrating the controller and power switches, and enables higher power density than 48 V to 12 V discrete solutions in the same footprint.
Recomendado
Industrial 48 V Robotics and Motor Drives
Industrial robotics and 48 V servo drives need compact, high-efficiency conversion from a 48 V factory bus to motor-rail voltages such as 24 V, 36 V, or 12 V. The PI3755-01-LGIZ's 160 W continuous rating and ZVS high-frequency operation allow it to drive a downstream motor driver or sensor cluster with low EMI and fast transient response. The 71-LGA SiP mounts directly to a PCB with the exposed thermal pad conducting heat to a copper pour, removing the need for an external heatsink in moderate-power designs and saving significant volume in space-constrained robotic joints.
Recomendado
High-Density Computing and Graphics Card Auxiliary Rails
Modern GPUs and AI accelerators require auxiliary rails beyond the main 12 V input, often drawing 100 W to 200 W with strict noise and transient budgets. The PI3755-01-LGIZ delivers 160 W of clean, ZVS-switched power from a 48 V intermediate bus, with high switching frequency that minimizes output ripple and enables fast load-step response. The 71-LGA SiP allows placement directly under or beside the GPU on the same board, dramatically reducing distribution losses versus running 12 V at high current across long PCB traces in dense compute cards.
Recomendado
Distributed Power Architecture 48 V to 24 V/12 V
Distributed power architectures (DPA) replace centralized silver-box power supplies with bus converters and POL regulators near each load. The PI3755-01-LGIZ acts as a 48 V to 24 V (or 12 V) bus-converter or POL stage, supplying downstream sub-rails from a regulated intermediate. Its 160 W continuous rating and ZVS topology improve end-to-end efficiency versus conventional hard-switched buck converters, while the high-density 71-LGA SiP shrinks the converter footprint to allow more compute, storage, or radio content in the same chassis.
Recomendado
LED Lighting and High-Power Stage Lighting
Architectural LED lighting and stage fixtures are increasingly powered from 48 V or 54 V constant-voltage distribution for thinner copper and lower I^2R loss. The PI3755-01-LGIZ can step that 48 V bus to the 24 V or 36 V string voltage required by high-power LED arrays, delivering 160 W of clean power with ZVS switching that keeps EMI low enough to coexist with DMX and wireless DMX receivers. The compact 71-LGA SiP can be embedded inside a slim fixture housing without the bulk of a discrete buck-boost design.
Recomendado
Battery Energy Storage and 48 V E-Bike / E-Mobility Auxiliary Rails
Battery energy storage systems (BESS) and 48 V e-mobility platforms (e-bikes, light electric vehicles, mobile robotics) need efficient conversion from the pack nominal voltage to 12 V, 24 V, or 36 V auxiliary rails. The PI3755-01-LGIZ's 38 V to 60 V input spans the typical 48 V nominal Li-ion pack range, and the ZVS buck-boost topology holds regulation across pack state-of-charge swings. With 160 W of continuous output, the module can drive headlights, displays, sensors, and motor controllers from a single high-density SiP, reducing weight and BOM versus a discrete buck-boost PCB.
Recomendado
Test and Measurement Bench Power
Bench-top and rack-mounted test instrumentation (ATE, parametric testers, semiconductor test equipment) often runs from a 48 V internal DC bus and needs clean, programmable auxiliary rails. The PI3755-01-LGIZ provides 160 W of low-EMI, fast-transient power to analog front-ends, DAC reference circuits, or motor-control DUT cards. The 71-LGA SiP integrates the controller and power switches, simplifying the safety/EMI design loop and allowing more channels per rack unit than a discrete buck-boost solution.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PI3755-01-LGIZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PI3755-02-LGIZ | PI3755-01 | PI3755-01-LGIZ |
|---|---|---|---|---|
| Brand | Vicor | Vicor | Vicor | Vicor |
| Package | LGA-71 (71-BLGA Module, SiP) | LGA-71 (71-BLGA Module, SiP) - same | LGA-71 (71-BLGA Module, SiP) - same | LGA-71 (71-BLGA Module, SiP) - same |
| Input Voltage Range | 38 V to 60 V | 38 V to 60 V | 38 V to 60 V | 38 V to 60 V |
| Output Power (Continuous) | 160 W | 160 W | 160 W | 160 W |
| Topology | ZVS Buck-Boost | ZVS Buck-Boost | ZVS Buck-Boost | ZVS Buck-Boost |
| Output Polarity | Positive Adjustable | Positive Adjustable | Positive Adjustable | Positive Adjustable |
| Integration Level | Controller + switches + passives (SiP) | Controller + switches + passives (SiP) | Controller + switches + passives (SiP) | Controller + switches + passives (SiP) |
| Mounting Type | Surface Mount (LGA land pads) | Surface Mount (LGA land pads) | Surface Mount (LGA land pads) | Surface Mount (LGA land pads) |
| RoHS Status | Compliant | Compliant | Compliant | Compliant |
Principais diferenciais
- Highest integration in its power class - controller, switches, and passives in one 71-LGA SiP (vs PI3755-02-LGIZ)
- ZVS switching enables high frequency without the usual switching-loss penalty (vs PI3749-00-LGIZ)
- External-inductor architecture preserves efficiency at 160 W without discrete heatsinks (vs PI3755-01)
Notas de projeto
Estimated: at 160 W output with ~85% efficiency, the PI3755-01-LGIZ dissipates roughly 28 W of loss. The 71-LGA SiP must be soldered to a substantial copper pour on the PCB; Vicor's family overview recommends an unbroken top-layer copper pad plus thermal vias to inner planes. Without adequate copper, the junction can exceed safe limits at full load - design with at least 1 oz copper and a continuous ground/thermal flood under the LGA footprint.
Per Vicor's PI37xx family overview, the PI3755-01 requires only an external inductor and a minimal number of ceramic capacitors. Place the external inductor and input/output ceramic capacitors as close to the LGA pads as possible to minimize loop area. Keep the input return and output return paths short and direct, and provide a continuous ground pour on at least one inner layer for return currents and thermal spreading.
Do not operate below the 38 V minimum input - the ZVS timing margin erodes and efficiency drops sharply near the input floor. Verify the inductor saturation current is rated above the peak inductor current at full load and minimum input. The SiP must be reflowed with a profile matched to the LGA land-pad geometry; excessive peak temperature or long time-above-liquidus will damage the internal die and void the warranty.
Informações de conformidade
RoHS and lead-free status per Vicor product page. AEC-Q100 not applicable (industrial/telecom SiP, not automotive qualified). REACH, halogen-free, and conflict-minerals status not explicitly stated in the verified web data and marked unknown - request the manufacturer's full compliance statement for definitive values.
