NBM2317S60E1560T0R - 800W Non-Isolated Bus Converter 60A | Vicor
MPN: NBM2317S60E1560T0R ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $83.16 | $83.16 |
| 10 | $78.5 | $785.00 |
| 100 | $71.2 | $7,120.00 |
| 500 | $65.8 | $32,900.00 |
| 1,000 | $60.4 | $60,400.00 |
NBM2317S60E1560T0R Overview
A bus converter (also called a Bus Converter Module, BCM or NBM in Vicor nomenclature) is a fixed-ratio, non-isolated DC-DC converter that steps a higher distribution voltage down by a deterministic factor (in this case K=1/4 approx, 38-60V -> 9.5-15V) to power downstream point-of-load (PoL) regulators. Unlike a discrete buck regulator, the bus converter uses a Sine Amplitude Converter (SAC) topology with a proprietary zero-voltage-switching (ZVS) / zero-current-switching (ZCS) architecture, achieving high density and low noise. In a system hierarchy it sits above PoL regulators (DCM, PRM, PoL converters) and is part of the Factorized Power Architecture (FPA) ecosystem from Vicor.
Key features include 60 A rated output current (step-down operation), 38-60 V high-side input range, a 9.5-15 V ratiometric low-side output, and 97.9% peak efficiency. The module provides low output impedance well beyond the bandwidth of most downstream PoL regulators, meaning input capacitance that would normally sit at the PoL input can be moved to the high-voltage side, reducing PCB area and BOM count.
Technically, the NBM2317S60E1560T0R uses Vicor's proprietary SAC topology with a high-frequency soft-switching architecture achieving >97% efficiency at typical loads. The part is bidirectional, capable of start-up and steady-state operation in either direction when used with Vicor's PRM or BCM companion parts. Two cooling configurations are supported: two-sided cooling and bottom-side only (through-PCB) cooling, with thermal models provided for each.
Typical applications include 48 V data center and telecom intermediate bus conversion, distributed power architectures for AI accelerators and GPUs, high-end computing motherboards, industrial 48 V robotics, and aerospace distributed power systems. The bidirectional capability makes it suitable for energy storage and battery systems as well.
When designing with this device, ensure adequate PCB copper thermal mass or attach to a cold plate. Use Vicor's companion evaluation boards for thermal characterization and consult the datasheet for derating curves beyond the 60 A continuous rating.
This page synthesizes distributor pricing, drop-in same-family alternatives, comparison data, and practical design guidance not assembled on any single manufacturer or distributor page.
Drop-in alternatives for NBM2317S60E1560T0R — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with NBM2317S60E1560T0R (same form factor and footprint) — differing in Package, Topology, High-Side Input Voltage Range, Low-Side Output Voltage Range, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
NBM2317S48E1560T0R
✅ Drop-In📋 Reference alternative (not in catalog)
NBM2317S60E1560T0B
✅ Drop-In📋 Reference alternative (not in catalog)
NBM2317S60E1560T0R Maximum Ratings & Electrical Characteristics
| Product Type | Non-Isolated Bus Converter Module (NBM) |
| Topology | Sine Amplitude Converter (SAC), zero-voltage-switching |
| Conversion Ratio | Fixed Ratio (K = 1/4, ratiometric) |
| High-Side Input Voltage Range | 38 V to 60 VDC |
| Low-Side Output Voltage Range | 9.5 V to 15 VDC (ratiometric) |
| Output Voltage (Nominal) | 13.5 V |
| Rated Continuous Output Current | 60 A (step-down operation) |
| Maximum Continuous Output Power | 800 W |
| Peak Power Capability | Up to 1 kW, 2 ms |
| Peak Efficiency | 97.9% |
| Power Density | Up to 4.5 kW/in³ |
| Bidirectional Operation | Yes (start-up and steady-state) |
| Output Channels | 1 |
| Cooling | Two-sided or bottom-side (through PCB) |
| Package | Vicor ChiP surface-mount module |
| Mounting Type | Surface Mount (SMD) |
| RoHS Status | Compliant |
NBM2317S60E1560T0R vicor chip surface-mount module Pin Configuration Guide
Pin configuration for NBM2317S60E1560T0R (vicor chip surface-mount module package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for NBM2317S60E1560T0R.
Refer to the datasheet for full pin configuration.
Typical Applications
NBM2317S60E1560T0R is suitable for 7 applications: 48 V Data Center Intermediate Bus, AI Accelerator and GPU Power Distribution, Telecom 48 V Distribution, Industrial 48 V Robotics and Motor Drives, Battery Energy Storage Systems, High-Performance Computing Motherboards, Aerospace and Defense Distributed Power.
48 V Data Center Intermediate Bus
The NBM2317S60E1560T0R converts a 48 V nominal distribution rail (38-60 V) to a 13.5 V intermediate bus at up to 60 A and 800 W. Its 97.9% peak efficiency keeps total losses around 17 W at full load, eliminating the need for forced-air cooling at the bus stage. The Vicor ChiP package delivers 4.5 kW/in³ power density, enabling compact 48 V-to-PoL architectures for hyperscale data centers where PCB real estate is at a premium.
Recommended
AI Accelerator and GPU Power Distribution
High-end AI training boards require 48 V input with isolated or non-isolated step-down to GPU core voltages. The NBM2317S60E1560T0R steps 48 V to 13.5 V at 60 A (800 W) with 97.9% efficiency, feeding downstream Vicor DCM or PRM regulators that produce 0.8-1.2 V GPU rails. Its bidirectional capability allows the same module to be used in energy-recovery braking or battery-buffered GPU systems. The ChiP package's vertical integration suits GPU mezzanine and OAM module form factors.
Recommended
Telecom 48 V Distribution
Telecom equipment requires highly reliable 48 V DC distribution per ETSI EN 300 132-2. The NBM2317S60E1560T0R's 38-60 V input range accommodates the full telecom voltage window including battery float variations. At 97.9% peak efficiency, system designers can omit heatsinks and reduce airflow requirements in sealed outdoor enclosures. The 60 A continuous / 800 W rating supports one NBM per equipment shelf, simplifying thermal modeling.
Recommended
Industrial 48 V Robotics and Motor Drives
Industrial robots and 48 V servo drives benefit from the NBM2317S60E1560T0R's compact ChiP package and high power density. Converting 48 V to 13.5 V at 800 W with 97.9% efficiency supports auxiliary rails for sensors, controllers, and safety circuits on the same 48 V bus used for motors. The bottom-side cooling option simplifies integration into sealed robot joint housings. Bidirectional capability also supports regenerative braking energy return paths.
Recommended
Battery Energy Storage Systems
Bidirectional operation makes the NBM2317S60E1560T0R well suited for battery energy storage interface converters. During discharge, 48 V battery -> 13.5 V bus; during charge, the module accepts power flow in reverse. Its 800 W continuous rating and 97.9% efficiency minimize round-trip losses in residential or small commercial ESS. Vicor's Factorized Power Architecture pairs this NBM directly with a PRM for full bidirectional control with adaptive deadtime.
Recommended
High-Performance Computing Motherboards
Modern HPC motherboards distribute 48 V across the backplane and convert locally to lower voltages at each CPU/GPU socket. The NBM2317S60E1560T0R's 800 W rating supports a full compute node's intermediate bus requirements from a single ChiP. At 4.5 kW/in³ power density and 60 A in a small footprint, it is well suited for daughter-card or socket-adjacent placement, reducing distribution losses and improving transient response versus traditional 12 V motherboard power.
Recommended
Aerospace and Defense Distributed Power
Military and aerospace platforms adopting 48 V buses (per MIL-STD-704 and emerging standards) require high-efficiency, high-density converters. The NBM2317S60E1560T0R's 38-60 V tolerance accommodates 48 V military bus variations, and its SAC topology provides inherent noise and EMI advantages over hard-switched converters. Combined with Vicor's MIL-spec screening programs, this module is suitable for avionics, unmanned systems, and ruggedized ground vehicles requiring a non-isolated intermediate bus stage.
Recommended
Recommended Products Summary
Engineering reference data for NBM2317S60E1560T0R — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NBM2317S48E1560T0R | NBM2317S60E1560T0B |
|---|---|---|---|
| Brand | Vicor | Vicor | Vicor |
| Package | Vicor ChiP SMD module | Vicor ChiP SMD module - same | Vicor ChiP SMD module - same |
| Input Voltage Range | 38 V to 60 V | 36 V to 55 V | 38 V to 60 V |
| Output Voltage (Ratiometric) | 9.5 V to 15 V | 9.0 V to 13.75 V | 9.5 V to 15 V |
| Continuous Output Current | 60 A | 60 A | 60 A |
| Max Continuous Output Power | 800 W | 800 W | 800 W |
| Peak Efficiency | 97.9% | 97.9% | 97.9% |
| Bidirectional | Yes | Yes | Yes |
| Top-level MPN Reference Price (qty 1) | $83.16 | $83.16 (similar) | $83.16 (similar) |
Key Differentiators
- Highest power density in the non-isolated bus converter class (vs NBM2317S48E1560T0R)
- Expanded 38-60 V input window for surge-tolerant designs (vs NBM2317S48E1560T0R)
- Surface-mount T&R packaging for high-volume assembly (vs NBM2317S60E1560T0B)
Design Notes
At 800 W continuous output and 97.9% peak efficiency, full-load power dissipation is approximately 17 W (Estimated: P_loss = 800 / 0.979 - 800 = 17.2 W). Two-sided cooling provides the lowest thermal resistance and is required to maintain full 800 W rating across the full temperature range. For bottom-side-only cooling through the PCB, design at least 4 oz copper or attach the bottom pad to a cold plate; expect some derating above 600 W on through-PCB cooling alone.
The Vicor ChiP package requires a precisely defined land pattern with thermal vias under the package thermal pad. Per Vicor layout guidelines, place input capacitance (high-side) as close to the high-side pads as practical; the part's high AC impedance allows relocating PoL input capacitance to the high-voltage side, reducing total BOM and PCB area. Use multi-layer PCB (4+ layers) with heavy copper on inner layers for thermal spreading.
Do not apply input voltages above 60 V; the part lacks input over-voltage lockout at the module level (assume upstream fuse or TVS protection). When used bidirectionally, configure the PRM (when present) to manage soft-start direction; the NBM cannot start into a pre-biased output without proper sequencing. Avoid placing noise-sensitive analog circuitry directly above the ChiP package due to high-frequency magnetic flux leakage.
Keep the high-side input loop and low-side output loop areas minimized and orthogonal to each other to reduce magnetics-induced coupling. Per Vicor reference designs, route the gate-drive / control signals in an inner signal layer shielded by ground planes on either side. Maintain creepage and clearance per IEC 62368-1 if the application requires safety certification, even though the part is non-isolated.
Compliance Information
RoHS compliance per Vicor product page. AEC-Q100 not applicable (this is a power module, not an automotive IC). REACH, halogen-free, and conflict-minerals compliance should be verified directly with Vicor or via the distributor compliance certificates.
