[Application Solution] Full Coverage of I²C + Power + Signal Chain, AWINIC AI Server Solution Empowers the Computing Power Explosion

2026-06-10

With the rapid iteration of artificial intelligence, cloud computing, big data, and edge AI technologies, the global server industry has entered a new cycle of high growth. In 2026, the year-over-year growth rate of global server shipments is expected to reach 12.8%. Benefiting from the surge in demand for AI training and inference scenarios, the shipment growth rate of AI servers will exceed 28%. This growing demand continuously escalates the requirements for solution stability and power consumption control. Following this industry trend, AWINIC Technology has launched a comprehensive server solution covering three major product series: I²C interface, power management, and signal chain, providing high-performance, high-reliability domestic chip options for servers.

Figure 1 Server Application Block Diagram

1. Three Major Product Series

01 I²C Interface Series

Figure 2 AWINIC I²C Interface Chip Series

AWINIC's I²C interface series includes three product subcategories:

I²C GPIO Expander: Saves host I/O pins, simplifies layout and routing, reduces system cost
I²C Switch: Extends I²C bus, resolves I²C address conflicts
I²C Buffer: Extends I²C bus, provides segmented bus isolation, hot-swap bus buffering, and bidirectional level shifting

1. AW95124: 24-bit GPIO Expander

Figure 3 AW95124 Application Diagram

24-bit GPIO parallel port expander
1MHz I²C, SMBus compatible
Level shifting function, VCCI/P input range: 1.08V ~ 3.6V
Interrupt output (active low)
Expandable I²C address, supports up to 4 devices
Package: QFN 5mm × 5mm -32L

2. AW9548: I²C Bus Switch

Figure 4 AW9548 Application Diagram

1:8 channel bidirectional translation switch
400kHz I²C, SMBus compatible
VCC input range: 1.65V ~ 5.5V
3 I²C address expandable pins, supports up to 8 devices
Supports hot-swap, no glitch during power-up
1μA low standby current
Packages:

AW9548: TSSOP 7.80mm × 4.40mm -24L, QFN 4mm×4mm-24L
AW9546: TSSOP 5mm × 4.4mm -16L

3. AW9617: I²C Bus Buffer

Figure 5 AW9617 Application Diagram

Supports bidirectional level shifting and transmission of I²C bus signals
A-side voltage range: 0.8V to 5.5V
B-side voltage range: 2.2V to 5.5V
1MHz I²C, SMBus compatible
Load capacitance: 540pF @ 1MHz I²C, 4000pF @ 400kHz I²C
Active-high enable
Supports clock stretching and multi-master arbitration
Package: MSOP 3.0mm × 3.0mm -8L

02 Power Management

1. AW35141A: 6A Load Switch

Figure 6 AW35141A Application Diagram

Input voltage: Vbias = 2.5V ~ 5.5V, Vin = 0.6V ~ Vbias
Load current: 6A
Quiescent current: 20μA @ 3.3Vin
Rdson = 19mΩ @ 3.3Vin
Ten = 980μs, Tr = 560μs
QOD function
Package: DFN-8L 2mm×2mm×0.75mm

2. AW35019A: 5V/3A eFuse

Figure 7 AW35019A Application Diagram

Input voltage range: 2.7V ~ 6.5V, input withstand voltage: 24V
Power MOSFET on-resistance: 50mΩ
Configurable current limit range: 250mA ~ 3A
Current limit accuracy: ±7%
Input overvoltage protection: 7.5V threshold, 150ns response time
Output clamp voltage: 5.4V (5.4V < VIN < 7.5V)
Other protection features: soft-start, thermal shutdown, Fault interrupt indicator
Package: DFN 2mm×2mm×0.75mm-6L

3. AW37023: 5V/3A LDO

Figure 8 AW37023 Application Diagram

Input voltage range: 1.1V ≤ VIN < 7.5V, with bias
Output voltage range: 0.80V ~ 5.2V (FB config mode), 0.80V ~ 3.95V (IO config mode)
Low dropout: 180mV (Max.) @ 3A
Low output noise: 5μVrms @ 0.8V output, 11μVrms @ 5.0V output
Open-drain Power-Good signal
Protection features: current limit, thermal shutdown
Package: QFN 3.5mm×3.5mm-20L

03 Signal Chain Series

1. AW39128: 8-bit Level Shifter

Figure 9 AW39128 Application Diagram

Auto-direction sensing for signal transmission
Maximum data rates:

70Mbps (Push Pull)
2Mbps (Open Drain)

Voltage range:

A-port and VCCA: 1.1V ~ 3.6V
B-port and VCCB: 1.65V ~ 5.5V
VCCA ≤ VCCB

Integrated pull-up resistors on A-port & B-port
VCCA / VCCB arbitrary power-up/power-down sequencing
ESD protection:

ANSI/ESDA/JEDEC (A-port): ±4kV HBM; ±1kV CDM
IEC 61000-4-2 ESD (B-port): ±6kV contact; ±8kV air

Package: TSSOP 6.5mm×4.4mm-20L

2. AWS74LVC1G17: Single Schmitt-Trigger Buffer

Figure 10 AWS74LVC1G17 Application Diagram

VCC range: 1.65V to 5.5V, input voltage up to 5.5V
IOFF supports partial power-down mode
tpd: 3.7ns @ 3.3V
High output drive: ±24mA @ VCC = 3.0V
Operating temperature range: -40°C to 125°C
Package: SOT353 - 5L

2. Server Solution Product List

Table 1 AWINIC Server Solution Product Recommendation Table

Conclusion

As a leading domestic company in analog-mixed signal, power management, and signal chain chips, AWINIC Technology has深耕 the analog chip field for many years. Targeting typical server application scenarios, the company has developed a highly reliable, highly integrated complete solution covering I²C interface, power management, and signal chain. This solution meets server requirements for I²C bus expansion, low-voltage power protection and conversion, and low-speed signal processing, helping customers achieve performance upgrades and domestic substitution.