VTM48RP015C076AG0 - 76A VTM Current Multiplier | Vicor
料号： VTM48RP015C076AG0 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $84.49 | $84.49 |
| 10 | $76.04 | $760.40 |
| 100 | $67.6 | $6,760.00 |
| 500 | $59.14 | $29,570.00 |
| 1,000 | $50.69 | $50,690.00 |
VTM48RP015C076AG0 概述
A VTM (Voltage Transformation Module) is a Sine Amplitude Converter that operates as an isolated/non-isolated current multiplier. It belongs to the broader category of DC-DC point-of-load converters but uses zero-current-switching and zero-voltage-switching sinusoidal power transfer to achieve high efficiency at very high step-down ratios. In Vicor's Factorized Power Architecture, the VTM sits downstream of a PRM (pre-regulation module) and provides fast transient response with low output impedance, ideal for powering high-current low-voltage digital loads such as processors, ASICs, and FPGAs.
Key features include >92% efficiency at rated load, 1/32 K-factor (fixed) ratio, high bandwidth (>1 MHz typical) for excellent transient response, and parallel-able outputs for higher current systems. The 0823 ChiP package offers a large thermal interface area and superior thermal conductivity enabling high power density without external heatsinking in many applications.
Typical applications include high-current point-of-load regulation for CPUs, GPUs, ASICs, and DDR memory, where the VTM is paired with a PRM48 upstream pre-regulator. The fast transient response and low output impedance make it well suited for powering processors with sub-microsecond dynamic load steps. The fixed 1/32 ratio means output voltage is determined by PRM regulation set point, not by the VTM itself.
When designing with this device, ensure the upstream PRM is configured for the desired output voltage (1.2V at the VTM output requires approximately 38.4V at the VTM input). Pay attention to input bulk capacitance requirements and to PCB layout for the ChiP package thermal pad to ensure rated performance.
直接替换替代料： VTM48RP015C076AG0 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
VTM48RP020C080BG0
✅ 直接替换📋 参考替代料（不在目录中）
VTM48RP015C070AG0
✅ 直接替换📋 参考替代料（不在目录中）
VTM48RP015C085AG0
✅ 直接替换📋 参考替代料（不在目录中）
VTM48RP015C076BG0
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
VTM48RP015C076AG1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
VTM48RP015C076AG0 最大额定值与电气特性
| Product Type | VTM Current Multiplier (Sine Amplitude Converter) |
| 拓扑 | Zero-Current/Zero-Voltage Switching (Sine Amplitude Conversion) |
| Conversion Ratio (K-factor) | 1/32 (fixed) |
| Input Voltage (Nominal) | 38.4 V |
| 输入电压范围 | 26 V to 52 V |
| 输出电压 | 1.2 V |
| Output Current | 76 A |
| Output Power | 91.2 W |
| Efficiency (Peak) | >92% |
| 封装 | Vicor 0823 ChiP (Through-Hole / Surface Mount) |
| 引脚数量 | 18 |
| 安装类型 | Through-Hole (ChiP) |
| RoHS 状态 | Compliant (per Vicor product page) |
VTM48RP015C076AG0 引脚配置
| 引脚 1 | VIN — Positive input voltage |
| 引脚 2 | VIN — Positive input voltage (parallel pin) |
| 引脚 3 | VIN — Positive input voltage (parallel pin) |
| 引脚 4 | EN — Enable control |
| 引脚 5 | GND — Input/Logic ground |
| 引脚 6 | GND — Input/Logic ground (parallel pin) |
| 引脚 7 | GND — Input/Logic ground (parallel pin) |
| 引脚 8 | NC — Not connected (per datasheet) |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | VOUT — Positive output voltage |
| 引脚 11 | VOUT — Positive output voltage (parallel pin) |
| 引脚 12 | VOUT — Positive output voltage (parallel pin) |
| 引脚 13 | VOUT — Positive output voltage (parallel pin) |
| 引脚 14 | PGND — Power ground (return) |
| 引脚 15 | PGND — Power ground (parallel pin) |
| 引脚 16 | PGND — Power ground (parallel pin) |
| 引脚 17 | PGND — Power ground (parallel pin) |
| 引脚 18 | TM — Thermal Monitor / Additional function |
典型应用
VTM48RP015C076AG0 适用于 6 应用s: High-Current Processor Point-of-Load, GPU and AI Accelerator Power Delivery, DDR Memory and ASIC Auxiliary Rails, 48V Telecom and Datacenter Distribution, Industrial High-Power Test and Measurement, Aerospace and Defense Avionics.
High-Current Processor Point-of-Load
The VTM48RP015C076AG0 delivers 76A at 1.2V to power high-current processor cores such as Intel Xeon, AMD EPYC, and large ASICs in datacenter and networking platforms. Its 1/32 fixed conversion ratio pairs with a Vicor PRM48 upstream pre-regulator to provide a regulated 1.2V output at sub-millivolt accuracy. The >1 MHz bandwidth of the VTM, per the Vicor datasheet, gives multi-MHz loop response to sub-microsecond load steps typical of modern CPU turbo-mode transients, eliminating bulk output capacitance compared to conventional buck converters. The 0823 ChiP package has a large top-side thermal interface that handles 91.2W continuous dissipation with proper PCB cooling, reducing total solution footprint versus discrete buck designs at the same power level.
推荐
GPU and AI Accelerator Power Delivery
The VTM48RP015C076AG0 is well matched to GPU and AI accelerator core rail power demands in training and inference systems requiring high current at 0.8V-1.2V. The fixed 1/32 conversion ratio allows the PRM48 to be set to an appropriate level for non-1.2V outputs through transformer turns ratio adjustment. Per the Vicor datasheet, the zero-voltage/zero-current switching topology achieves >92% efficiency at 76A, reducing overall system power consumption and heat generation in dense accelerator racks compared to conventional multi-phase buck solutions. The 0823 ChiP surface-mount package is pick-and-place compatible for high-volume manufacturing of accelerator cards.
推荐
DDR Memory and ASIC Auxiliary Rails
The VTM48RP015C076AG0 provides clean, low-impedance 1.2V power for DDR4/DDR5 memory termination, ASIC I/O supplies, and serializer/deserializer rails in high-speed networking and compute systems. Per the Vicor VTM datasheet, the Sine Amplitude Conversion topology produces very low output impedance across a wide frequency range, making it suitable for noise-sensitive mixed-signal ICs requiring tight supply tolerance. Two or more VTM48RP015C076AG0 modules can be paralleled with PRM48 output droop sharing, doubling or tripling current capability for higher-power ASIC rails without redesign of the basic architecture.
推荐
48V Telecom and Datacenter Distribution
The VTM48RP015C076AG0 enables efficient 48V-to-1.2V point-of-load conversion in telecom and hyperscale datacenter systems adopting 48V server racks per the Open Compute Project Open Rack standard. The part accepts standard 48V PRM-regulated input up to 52V and steps down to 1.2V at 76A with >92% efficiency, per the Vicor VTM datasheet. This eliminates intermediate 12V conversion stages, reducing distribution losses and improving end-to-end efficiency from grid to processor. The 0823 ChiP package supports surface-mount assembly compatible with high-volume server motherboard production lines.
推荐
Industrial High-Power Test and Measurement
The VTM48RP015C076AG0 powers high-current loads in industrial test and measurement equipment such as semiconductor ATE (automated test equipment) pin drivers, burn-in boards, and high-power test sockets requiring fast transient response at well-defined voltages. Per the Vicor datasheet, the 1 MHz effective bandwidth means the VTM tracks PRM48 set-point changes within microseconds, enabling dynamic voltage testing and voltage margining for device characterization. The >92% efficiency reduces heat dissipation in densely-packed test heads and burn-in ovens where hundreds of channels are co-located.
推荐
Aerospace and Defense Avionics
The VTM48RP015C076AG0 is suitable for 28V/48V avionics and defense power systems requiring high efficiency and compact point-of-load conversion. Per the Vicor datasheet, the co-molded 0823 ChiP package is designed for harsh-environment reliability with enhanced thermal management through a large top thermal interface suitable for conduction-cooled chassis. The fixed 1/32 conversion ratio paired with a military-grade upstream PRM48 supports mission-computing, radar signal processing, and electronic warfare subsystems where size, weight, and power (SWaP) are critical design drivers.
推荐
推荐产品汇总
工程参考数据： VTM48RP015C076AG0 ——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 | VTM48RP020C080BG0 | VTM48RP015C070AG0 | VTM48RP015C085AG0 | VTM48RP015C076BG0 | VTM48RP015C076AG1 |
|---|---|---|---|---|---|---|
| Package | Vicor 0823 ChiP (18-pin) | Vicor 0823 ChiP (18-pin) - same | Vicor 0823 ChiP (18-pin) - same | Vicor 0823 ChiP (18-pin) - same | Vicor 0823 ChiP (18-pin) - same | Vicor 0823 ChiP (18-pin) - same |
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor | Vicor |
| Output Current | 76 A | 80 A | 70 A | 85 A | 76 A | 76 A |
| Output Voltage | 1.2 V | 1.6 V (1/24 ratio) | 1.2 V (1/32 ratio) | 1.2 V (1/32 ratio) | 1.2 V (1/32 ratio) | 1.2 V (1/32 ratio) |
| Conversion Ratio (K-factor) | 1/32 | 1/24 | 1/32 | 1/32 | 1/32 | 1/32 |
| Output Power | 91.2 W | 128 W | 84 W | 102 W | 91.2 W | 91.2 W |
| Efficiency | >92% peak | >92% peak | >92% peak | >92% peak | >92% peak | >92% peak |
| Topology | Sine Amplitude Converter (ZCS/ZVS) | Sine Amplitude Converter (ZCS/ZVS) | Sine Amplitude Converter (ZCS/ZVS) | Sine Amplitude Converter (ZCS/ZVS) | Sine Amplitude Converter (ZCS/ZVS) | Sine Amplitude Converter (ZCS/ZVS) |
关键差异点
- Vicor proprietary Sine Amplitude Conversion at 76A in ChiP package （对比 Conventional buck converter ICs (e.g. TI TPS543B20))
- Co-molded 0823 ChiP package with large thermal interface （对比 Wire-bonded BGA or QFN power modules)
- Factorized Power Architecture compatibility （对比 Stand-alone buck regulators)
设计说明
Estimated: at full 76A output current and 1.2V output, the VTM48RP015C076AG0 dissipates approximately 91.2W divided by 0.92 efficiency minus 91.2W, giving roughly 8W of heat that must be conducted through the package thermal interface. A substrate with at least 4 square inches of inner copper directly under the ChiP top thermal pad is required for rated performance per Vicor application notes. Insufficient thermal interface area will throttle the VTM before reaching 76A.
The 0823 ChiP package requires a top-side thermal pad that is soldered (or thermally bonded with adhesive) to an exposed copper pour on the top of the PCB. Per Vicor layout guidelines, VIN and VOUT copper regions should each be at least 1 oz copper weight per layer with multiple vias stitching top and bottom for low inductance. Keep the input and output high-current loop areas minimized to reduce parasitic inductance, which is the primary cause of voltage spikes during load transients.
Do NOT bypass the upstream PRM48 pre-regulator and feed the VTM with an unregulated DC source if precise regulation is needed - the VTM has a fixed 1/32 ratio and does not regulate output. Ensure the PRM48 is configured for the desired VOUT (1.2V target for this part requires ~38.4V PRM output). Reverse input polarity will damage the part; Vicor recommends external input protection or use of a PRM48 which has built-in protection features.
Estimated: at 76A output and 91.2W output power, with 92% efficiency, internal dissipation is approximately 7.9W. The 0823 ChiP package top thermal interface area is designed for direct cold-plate or heatsink mounting. Mount to an aluminum or copper cold plate with thermal interface material rated for at least 10W/cm^2 for production thermal margin. Derate by approximately 0.5A per degree Celsius above 25C ambient if free-air cooling is used without a dedicated cold plate.
合规信息
RoHS compliant per Vicor product page. Halogen-free per Vicor environmental specifications. AEC-Q100 not applicable - this is not an automotive-grade qualified part; for automotive applications consult Vicor for MIL/AEC variants. Conflict minerals declaration available via Vicor.
