PCIe Card Power Solutions | 12V and 3.3V Distribution Architecture

Efficient, Reliable Power Delivery for PCIe Add-in Card Platforms

PCIe Slot Power Architecture for Core and System Rails

As PCIe systems push bandwidth and performance to new levels, power delivery becomes a critical design challenge.
Reed Semiconductor’s 12V PCIe power solutions—from eFuses and POL converters to multiphase controllers, smart power stages, and power modules—are built to meet these demands.
The result: efficient, scalable, and reliable power for next-generation networking and high-performance computing platforms.
12V3.3VVCOREI/O2.5V1.2VPoL3.3V PoL3.3V PoLMultiphaseControllerSPSSPB12V eFuse3.3V eFuse

12V eFuse

12V eFuse

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

Multiphase Controller

Multiphase Controller

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

Smart Power Stage

Smart Power Stage

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Part Number
Status
Description
Vin (max) (V)
Vin (min) (V)
Iout (max) (A)
Package
Active
45A Half-Bridge Smart Power Stage
16
2.5
90
4 × 6
Pre-Release
3.5V to 8V, 150A, Topside cooled Smart Power Stage in 6mm × 6mm TLGA
Pre-Release
80A Topside cooled Half-Bridge Smart Power Stage
8
3.5
150
6 × 6
Pre-Release
25A Half-Bridge Smart Power Stage
16
2.5
50
3 × 4
Active
35A Half-Bridge Smart Power Stage
16
2.5
60
4 × 5
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
Pre-Release
High Frequency Smart Power Block
2
7.5
140
—
10 x 9 x 8mm, LGA-72
Pre-Release
High Frequency Low-Profile Smart Power Block
2
7.5
140
—
10 x 9 x 5mm, LGA-72
Pre-Release
High Frequency DC-DC Smart Power Block
2
16
140
—
10 x 9 x 8mm, LGA-72
Pre-Release
High-Frequency Ultra-Low-Profile Smart Power Block
2
16
140
—
10 x 9 x 4mm, LGA-72
Pre-Release
HIgh-Frequency Low-Profile Smart Power Block
2
16
140
—
10 x 9 x 5mm, LGA-72
Pre-Release
Native TLVR Low-Profile Smart Power Block
2
16
140
✔️
10 x 9 x 5mm, LGA-72

12V PoL

12V POL

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

3.3V PoL

3.3V POL

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Part Number
Description
Vin (max) (V)
Vin (min) (V)
Iout
Package Size
High-Performance Buck Converter for Point-of-Load Applications
16
2.85
6
2 x 3mm, QFN-14
High-Performance Buck Converter for Computing and Networking Applications
16
2.85
12
3 x 4mm, QFN-21

3.3V eFuse

3.3V eFuse

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Part Number
Description
Vin (min) (V)
Iout (A)
2.97V to 16V, 7A eFuse with Selectable OVC and Power-Good Output
2.97
7
2.97V to 16V, 5.5A Bi-Directional Power Path Protection eFuse with PG Monitoring
2.97
5.5
2.97V to 16V, 5.5A Bi-Directional Power Path eFuse with Fault and Input Voltage Supply Monitoring
2.97
5.5

 

Input Protection

12V eFuse

Core Power Delivery

Multiphase Controllers

Smart Power Stages

Smart Power Modules

System Power Rails

Point-of-load converters

Point-of-load power modules