VTM48KP020T088AA1 - 88A VTM Current Multiplier ChiP | Vicor
Teilenummer: VTM48KP020T088AA1 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $145 | $145,00 |
| 10 | $135 | $1.350,00 |
| 100 | $122.5 | $12.250,00 |
| 500 | $110 | $55.000,00 |
| 1.000 | $99.5 | $99.500,00 |
VTM48KP020T088AA1 Übersicht
A VTM current multiplier is a specialized DC-DC converter stage that performs an isolated, fixed-ratio voltage step-down at very high current. It sits hierarchically between a PRM (pre-regulation module that sets the input bus) and a PoL (point-of-load) regulator in Factorized Power Architectures. Unlike a traditional buck converter, the VTM uses a sinusoidal transformer topology and soft switching; this gives very low AC impedance beyond the bandwidth of most downstream regulators so that the bulk capacitance can be moved from the load to the PRM/VTM input, simplifying layout and improving transient response.
Key features include 88A continuous output current, 1.8V output from a 1:24 fixed ratio (43.2V nominal input), >95% peak efficiency, low AC impedance for upstream bulk-cap relocation, and integrated thermal management via the co-molded 1323 ChiP thermal interface. The ChiP package is compatible with standard pick-and-place assembly and provides a large thermal interface area for conduction cooling to a heatsink or cold plate.
Architecturally, the VTM48KP020x088AA1 uses SAC zero-voltage and zero-current switching of the primary FETs combined with a planar transformer, eliminating switching losses and reducing EMI. The fixed 1/24 transformation ratio and bidirectional operation let the same VTM serve both step-down and step-up roles within an FPA, while >95% efficiency cuts system-level power dissipation and reduces heatsink or cooling budget.
Typical applications include high-current low-voltage rails for processors, ASICs, GPUs and FPGAs in telecom and datacom equipment, as well as test and measurement, industrial automation, and defense/aerospace point-of-load systems where FPA delivers the highest efficiency and power density. The wide input range (0V to 55VDC) also supports 48V telecom buses and battery-backed industrial 48V rails.
Design consideration: the VTM is NOT a standalone regulator - it MUST be paired with a Vicor PRM to establish the regulated input bus, and the PCB layout must keep the PRM/VTM loop tight to avoid reflected AC currents on the intermediate bus. Thermal management is mandatory because the 88A × (1.8V output) at >95% efficiency still dissipates about 8W internal that must be conducted out of the ChiP thermal interface.
Drop-in-Alternativen für VTM48KP020T088AA1 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
VTM48KP020T088BA1
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VTM48KP020T120AA00
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VTM48KP020T050AA00
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VTM48KP020T088CA00
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VTM48KP020T088AA1-ND
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VTM48KP020T088AA1 Grenzwerte & elektrische Eigenschaften
| Product Type | VTM Current Multiplier (SAC-based DC-DC converter) |
| Manufacturer | Vicor Corporation |
| Series | VTM48K 020 088AA1 (1323 ChiP) |
| Topologie | Sine Amplitude Converter (SAC), isolated fixed-ratio current multiplier |
| Eingangsspannungsbereich | 0 V to 55 VDC (43.2 V nominal, 48 V bus) |
| Ausgangsspannung | 0 V to 2.3 VDC (1.8 V nominal at 43.2 V in, fixed 1/24 K factor) |
| Output Current | 88 A continuous |
| Power Output | 158 W typical at full load (1.8 V × 88 A) |
| Wirkungsgrad | Greater than 95% |
| Switching Topology | SAC (zero-voltage / zero-current switching) |
| Architecture Compatibility | Vicor PRM regulator (Factorized Power Architecture) |
| Gehäuse | 1323 ChiP (co-molded SMT module) |
| Montageart | Surface Mount (pick-and-place compatible) |
| Thermal Interface | Co-molded ChiP thermal interface area (conduction cooled) |
VTM48KP020T088AA1 1323 chip (co-molded smt module) Pinbelegungsleitfaden
Pinbelegung für VTM48KP020T088AA1 (1323 chip (co-molded smt module)-Gehäuse). Dieses Leistungsbauteil verfügt über Gate-, Drain- und Source-Anschlüsse. Bei nicht gepolten Gehäusen entnehmen Sie die genaue Ausrichtung von Pin 1 und Footprint-Details dem Herstellerdatenblatt. Typische Anwendungen sind Netzteilentwurf, Motoransteuerung und Lastschaltung.
Keine detaillierten Pinbelegungsdaten verfügbar für VTM48KP020T088AA1.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
VTM48KP020T088AA1 ist geeignet für 6 Anwendungs: 48V Telecom / Datacom PoL Rails, High-Current Processor / ASIC Power, Industrial 48V Battery / Robotics, Test & Measurement Equipment, Defense & Aerospace Avionics, AI Accelerator / GPU Server Racks.
48V Telecom / Datacom PoL Rails
The VTM48KP020T088AA1 sits downstream of a Vicor PRM to deliver 1.8V at 88A directly at the point-of-load for high-current ASICs, network processors, and switch ASICs in 48V telecom and datacom equipment. With greater than 95% efficiency and a fixed 1:24 K-factor, the module converts 43.2V input to 1.8V output while dumping only ~8W of internal loss, drastically reducing heatsink and cooling budget versus a hard-switched buck regulator at the same load. The very low AC impedance of the SAC topology lets bulk decoupling be relocated from the PoL back to the PRM input, simplifying 48V backplane design and improving transient response.
Empfohlen
High-Current Processor / ASIC Power
Sub-2V rails at 60-90A are typical for modern processors, FPGAs, and AI ASICs. The VTM48KP020T088AA1 supplies 88A at 1.8V from a 48V intermediate bus, eliminating the multi-phase buck regulator and its bulky output inductors. Vicor datasheet figures of >95% efficiency reduce PoL losses by ~5x compared with a discrete buck at the same load, allowing placement directly adjacent to the load with minimal thermal headroom. Soft-switching SAC operation also reduces EMI, easing CE/RE compliance for the platform.
Empfohlen
Industrial 48V Battery / Robotics
Robotics and automated industrial systems running on 48V or 24V-72V battery rails benefit from the VTM48KP020T088AA1's 0V to 55VDC input range and 88A current capability. It produces an isolated 1.8V logic rail at >95% efficiency, enabling long battery run-time and reducing the need for forced-air cooling on moving robotic joints. The fixed 1:24 K-factor yields predictable output that tracks battery state-of-charge, simplifying telemetry and safe-discharge protection logic.
Empfohlen
Test & Measurement Equipment
ATE and bench instrumentation require clean, low-noise, high-current rails to power device-under-test loads. The VTM48KP020T088AA1's SAC topology produces 1.8V at 88A with extremely low output impedance and minimal ripple, ideal for sourcing clean power to MCUs, SoCs, and programmable logic during characterization. Conduction-cooling via the 1323 ChiP package fits well into compact bench chassis, and the FPA architecture simplifies adding downstream regulators for multiple voltage domains from a single 48V supply.
Empfohlen
Defense & Aerospace Avionics
Avionics and defense power distribution architectures use 28V/48V primary buses to step down to sub-2V logic levels at high current, exactly the use case the VTM48KP020T088AA1 was engineered for. Its 0V to 55V input range tolerates the wide bus excursions of aerospace power buses, while the SAC zero-current switching reduces EMI signature - critical for DO-160 or MIL-STD-461 platforms. The 1323 ChiP package supports conduction-cooling onto a cold plate, the preferred thermal solution in sealed avionics enclosures.
Empfohlen
AI Accelerator / GPU Server Racks
AI training racks draw 200-700A per board at sub-1V rails; the VTM48KP020T088AA1 is well matched as a current multiplier upstream of a multi-phase VTM/PoL to supply per-GPU 0.8V-1.8V domains from a 48V rack bus. Greater than 95% efficiency at 88A out cuts switching losses versus multi-phase buck converters, lowering rack-level heat density and easing liquid-cooling burden. The ChiP package's high power density (158W in a 1323 form-factor) frees up board area for GPU sockets and high-bandwidth memory.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für VTM48KP020T088AA1 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | VTM48KP020T088BA1 | VTM48KP020T120AA00 | VTM48KP020T050AA00 | VTM48KP020T088CA00 |
|---|---|---|---|---|---|
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor |
| Package | 1323 ChiP | 1323 ChiP (same) | 1323 ChiP (same) | 1323 ChiP (same) | 1323 ChiP (same) |
| Topology | SAC VTM (current multiplier) | SAC VTM (same) | SAC VTM (same) | SAC VTM (same) | SAC VTM (same) |
| K-Factor (V/V) | 1/24 | 1/24 | 1/24 | 1/24 | 1/24 |
| Output Current (A) | 88 | 88 | 120 | 50 | 88 |
| Nominal Output Voltage (V) | 1.8 | 1.8 (variant suffix option) | 1.8 | 1.8 | 1.8 |
| Input Voltage Range (VDC) | 0 to 55 | 0 to 55 | 0 to 55 | 0 to 55 | 0 to 55 |
| Efficiency | >95% | >95% | >95% | >95% | >95% |
| Architecture (requires PRM) | Yes (Vicor PRM) | Yes (Vicor PRM) | Yes (Vicor PRM) | Yes (Vicor PRM) | Yes (Vicor PRM) |
Wichtigste Unterscheidungsmerkmale
- Highest-density ChiP 1323 footprint with 88A in same family as 120A sibling (vs. VTM48KP020T050AA00)
- Lower thermal stress at 88A than the 120A sibling (vs. VTM48KP020T120AA00)
- Native Factorized Power Architecture (FPA) integration with Vicor PRM (vs. VTM48KP020T088BA1)
Designhinweise
The VTM48KP020T088AA1 dissipates internal losses as heat that MUST be conducted out through the 1323 ChiP thermal interface to a heatsink, cold plate, or PCB copper. Estimated: at 1.8V × 88A (158W) and >95% efficiency, internal loss is roughly 8W; without thermal attachment the junction temperature will exceed rating in seconds. Always mount the ChiP via its datasheet land pattern with a matched thermal pad or TIM to a heatsink rated for at least 8-10W steady-state.
Layout the PRM-to-VTM intermediate-bus loop as small and tight as possible - the intermediate bus carries high-frequency AC components at >1MHz that radiate strongly if looped over a large area. Use Vicor's evaluation-board PCB stack-up as a starting point: low-inductance copper pours on both top and inner layers for input/output returns, and place the PRM and VTM within 25mm of each other on the same side of the board. Per the Vicor datasheet, the input bulk capacitance of the VTM handles the high-frequency AC ripple, allowing you to omit many of the local capacitors at the PoL.
Three common pitfalls: (1) Powering the VTM without a Vicor PRM will leave the intermediate bus unregulated and the VTM output will follow the raw input scaled by 1/24 - this is unsafe for downstream PoL regulators. (2) Substituting a third-party SAC module 'equivalent' from another manufacturer will NOT drop into the 1323 ChiP land pattern and will not interoperate with the Vicor PRM interface. (3) Operating above 55V input can permanently damage the ChiP - the input bus must be TVS-protected against transient overvoltages from upstream hot-swap or bus events.
The VTM is bidirectional - it can step down OR step up at the same K-factor - but for simple step-down use leave the VTM output sense pins at the default internal setpoint. For load-line trimming, use the optional output-voltage trim pins shown on the datasheet. Note that the 1:24 K-factor is FIXED; if you need a different output voltage you must change the PRM output (which sets the intermediate bus) rather than alter the VTM.
Compliance-Informationen
RoHS and REACH compliance for VTM48K family per Vicor environmental page; AEC-Q100 not applicable for industrial ChiP module; lead-free per Vicor datasheet; halogen-free per Vicor product environmental statement.
