Server Power Delivery Solutions – 48V and 12V Architectures

Flexible Power Architectures for Modern Data Center Servers

48V and 12V Power Architecture for Server Systems

Modern server platforms require flexible power architectures that support both 12V and 48V distribution. Reed Semiconductor delivers comprehensive power solutions spanning the entire power path—from input protection and intermediate bus conversion to core and system-level regulation.
With a portfolio that includes eFuses, Intermediate Bus Converters (IBC), Point-of-Load (POL) regulators, multiphase controllers, smart power stages, and power modules, Reed enables efficient, scalable, and high-performance power delivery for today’s data center and enterprise computing systems.
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
NewRS31515
Active
High-Performance 15A Stackable eFuse for Power Distribution
60
6
15
NewRS31512
Pre-Release
Stackable 20A eFuse with PMBus Digital Telemetry
80
9
20

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
NewRS16630
Pre-Release
AVSBus 1.4/2.0 & PMBus
6
3
6 x 6mm, QFN-52
NewRS16C30
Pre-Release
AVSBus 1.4/2.0 & PMBus
12
3
8 x 8mm, QFN-68
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
NewRS18G30
Pre-Release
SVI3, AVSBus 1.4/2.0 & PMBus
16
3
7 x 7mm, QFN-60
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

 

PoL

POL

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Part Number
Description
Vin (max) (V)
Vin (min) (V)
Iout
Digital Interface
NewRS53385
High-Performance Stackable Buck Converter for Intelligent Point-of-Load Power
16
2.97
30
RS53317
High-Performance Buck Converter for Point-of-Load Applications
16
2.85
6
NewRS53329
16V, 20A Precision Regulation Buck Converter
16
3.3
20
RS53328
High-Performance Buck Converter for Computing and Networking Applications
16
2.85
12
RS53355
High-Current Buck Converter for AI, Servers, and Networking
16
2.97
30

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