Accelerator Card Power Solutions | 48V to Vcore Architecture

Scalable, High-Efficiency Power for AI Accelerator Platforms

48V to Vcore Power Architecture for Accelerator Cards

Accelerator cards power today’s data center and AI workloads, enabling high-performance computing for machine learning, inference, and advanced analytics.
Reed Semiconductor delivers a complete accelerator card power solution, including eFuses, Intermediate Bus Converters (IBC), Point-of-Load (POL) converters, multiphase controllers, smart power stages, and power modules.
Together, these technologies provide efficient, scalable, and reliable power delivery—supporting the demanding performance and power density requirements of modern AI and compute platforms.
48VVCORE12VBusPoLPoLMultiphaseControllerSPSSPBSPSSPBSPSSPB48V eFuseIBC12V eFuse12V eFuseAC/DC

48V eFuse

48V eFuse

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Part Number
Status
Description
Vin (max) (V)
Vin (min) (V)
Iout (A)
Digital Interface
NewRS31511
Pre-Release
Stackable 80V, 20A eFuse
80
9
20
NewRS31515
Active
High-Performance 15A Stackable eFuse for Power Distribution
60
6
15

12V eFuse

12V eFuse

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Part Number
Status
Description
Vin (max) (V)
Vin (min) (V)
Iout (A)
Digital Interface
RS31317
Active
Precision eFuse with Programmable Protection and Current Monitoring
16
4.5
15
RS31380
Active
4.5V to 16V, 50A Fully Integrated Smart eFuse With PMBus
16
4.5
50
RS31385
Active
Stackable 50A eFuse with Analog Current Monitoring (Fixed Latch-Off)
16
4
50
RS31386
Active
Stackable 4.5V to 16V, 50A eFuse with Current Monitoring
16
4
50
RS31387
Active
Stackable 4.5V to 16V, 50A eFuse with Current Monitoring
16
4
50

Intermediate Bus Converter (IBC)

Intermediate Bus Converter

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Part Number
Status
Conversion Ratio
Vin (max) (V)
Vin (min) (V)
Power (W)
Isolated
Peak η (%)
NewRSM3514
Active
4:1
60
40
1500
No
98.1
NewRSM3517
Active
Fixed 12V Output
75
36
600
Yes
95
RSM3512
Active
Fixed 12V Output
60
40
2000
No
98
NewRSM3502
Pre-Release
4:1
60
40
1000
No
98.1
NewRSM3503
Pre-Release
Fixed 12V Output
60
40
1300
No
98.3

Smart Power Stage

Smart Power Stage

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Part Number
Status
Description
Vin (max) (V)
Vin (min) (V)
Iout (max) (A)
Package
RS86900
Active
45A Half-Bridge Smart Power Stage
16
2.5
90
4 × 6
NewRS95F36
Pre-Release
3.5V to 8V, 150A, Topside cooled Smart Power Stage in 6mm × 6mm TLGA
NewRS95F36T
Pre-Release
80A Topside cooled Half-Bridge Smart Power Stage
8
3.5
150
6 × 6
NewRS86300
Pre-Release
25A Half-Bridge Smart Power Stage
16
2.5
50
3 × 4
RS86610
Active
35A Half-Bridge Smart Power Stage
16
2.5
60
4 × 5
RS86900
Active
45A Half-Bridge Smart Power Stage
16
2.5
90
5 × 6

Smart Power Block

Smart Power Block

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Part Number
Status
Description
Phases
Vin (max) (V)
Iout
Native TLVR
Dimensions
NewRSM5G02
Pre-Release
High Frequency Smart Power Block
2
7.5
140
—
10 x 9 x 8mm, LGA-72
NewRSM5G05
Pre-Release
High Frequency Low-Profile Smart Power Block
2
7.5
140
—
10 x 9 x 5mm, LGA-72
NewRSM6G02
Pre-Release
High Frequency DC-DC Smart Power Block
2
16
140
—
10 x 9 x 8mm, LGA-72
NewRSM6G03
Pre-Release
High-Frequency Ultra-Low-Profile Smart Power Block
2
16
140
—
10 x 9 x 4mm, LGA-72
NewRSM6G05
Pre-Release
HIgh-Frequency Low-Profile Smart Power Block
2
16
140
—
10 x 9 x 5mm, LGA-72
NewRSM6G15
Pre-Release
Native TLVR Low-Profile Smart Power Block
2
16
140
✔️
10 x 9 x 5mm, LGA-72


Multiphase Controller

Multiphase Controller

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Part Number
Status
Digital Interface
Phases
Channels
Package
NewRS16K20
Pre-Release
AVSBus 1.4/2.0 & PMBus
20
2
8 x 8mm, QFN-68
RS17G22
Active
PWMVID, AVS & PMBus
16
2
7 x 7mm, QFN-56
NewRS16520
Pre-Release
AVSBus 1.4 & PMBus
5
2
5 x 5mm, QFN-40
RS18822
Active
VR14, VR13.HC, VR13 & PMBus
8
2
5 x 5mm, QFN-40
RS18C22
Active
VR14, VR13.HC, VR13 & PMBus
12
2
6 x 6mm, QFN-48
RS19822
Active
SVI3 & PMBus
8
2
5 x 5mm, QFN-40
RS19C22
Active
SVI3 & PMBus
12
2
6 x 6mm, QFN-48
RS18G20
Active
VR14, VR13.HC & PMBus
16
2
7 x 7mm, QFN-56
RS19G20
Active
SVI3 & PMBus
16
2
7 x 7mm, QFN-56

PoL

POL

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Part Number
Status
Description
Vin (max) (V)
Vin (min) (V)
Iout (A)
Digital Interface
NewRS53417
Pre-Release
Buck Converter with Programmable Switching Frequency and Over Current Limit
26
2.85
6
NewRS53428
Pre-Release
Buck Converter with Programmable Switching Frequency and Over Current Limit
26
2.85
12
NewRS53385
Active
High-Performance Stackable Buck Converter for Intelligent Point-of-Load Power
16
2.97
30
RS53317
Active
High-Performance Buck Converter for Point-of-Load Applications
16
2.85
6
RS53319
Active
High-Current Buck Converter for AI, Server, and Networking Applications
16
4
20
NewRS53329
Active
16V, 20A Precision Regulation Buck Converter
16
3.3
20
RS53328
Active
High-Performance Buck Converter for Computing and Networking Applications
16
2.85
12
RS53355
Active
High-Current Buck Converter for AI, Servers, and Networking
16
2.97
30
NewRS53360
Pre-Release
High-Current Buck Converter for AI, Servers, and Networking
16
2.97
20

Input Protection

48V eFuse

12V eFuse

Intermediate Bus Conversion (IBC)

Fixed 12VOUT IBC

4:1 Unregulated Bus Converter

8:1 Unregulated Bus Converter

Core Power Delivery

Multiphase Controllers

Smart Power Stages

Smart Power Modules

System Power Rails

Point-of-load converters

Point-of-load power modules