DS125MB203SQE/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The DS125MB203SQE/NOPB is a 12.5 Gbps dual-port 2:1 multiplexer and 1:2 fanout buffer from Texas Instruments supporting 4 high-speed serial channels. It operates from 3.3V supply and is housed in a 54-pin QFN package. Available lead-free with worldwide shipping for high-speed backplane and PCIe interconnect designs.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 55
- Lifecycle
- ACTIVE
- Datasheet
- DS125MB203SQE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $24.0100(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Supports data rates up to 12.5 Gbps per channel for PCIe Gen 3 and 10GbE applications
- Dual-port 2:1 MUX plus 1:2 fanout buffer in a single device
- 4 high-speed differential signal channels with on-chip equalization
- 3.3V supply operation with sub-1W power consumption
- 54-pin QFN package for dense board-level integration
- Lead-free (NOPB) RoHS-compliant construction
- Supports SFP+, QSFP, and PCIe backplane signal routing
Applications
The DS125MB203SQE/NOPB is designed for PCIe Gen 3, 10 Gigabit Ethernet, and SATA/SAS backplane routing applications where flexible signal path switching and fanout are required at up to 12.5 Gbps. It enables server and storage system architects to select between two input sources and distribute the signal to two outputs simultaneously, reducing the number of discrete retimers and switches needed. It is also used in test fixtures and protocol analyzers where transparent high-speed signal steering is critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES WITH 3.3 VOLT SUPPLY |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-XQCC-N54 |
| JESD-609 Code | e3 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 2.625V |
| Supply Voltage-Min (Vsup) | 2.375V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Total Dose | V |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for DS125MB203SQE/NOPB:
suggested
suggested
suggested
Frequently Asked Questions
At what maximum data rate does the DS125MB203SQE/NOPB operate, and which protocols does it support?
The DS125MB203SQE/NOPB supports data rates up to 12.5 Gbps per channel, covering PCIe Gen 3 (8 Gbps), 10 Gigabit Ethernet (10.3125 Gbps), SATA 6 Gbps, and SAS 12 Gbps protocols. Its 4 differential channels can be independently configured as MUX inputs or fanout outputs, providing versatile routing for multi-protocol backplane designs in a single 54-pin QFN package.
How does the MUX and fanout topology of the DS125MB203SQE/NOPB reduce board complexity in a PCIe switch design?
By combining a 2:1 multiplexer with a 1:2 fanout buffer in one device, the DS125MB203SQE/NOPB replaces at least 2 separate ICs in a PCIe Gen 3 signal routing path. The 4-channel design handles multiple lanes simultaneously from a single 3.3V supply, reducing BOM count and PCB area while maintaining signal integrity at 12.5 Gbps without requiring external AC coupling capacitors on compliant designs.
Is the DS125MB203SQE/NOPB suitable for use in temperature-sensitive storage system enclosures?
Yes, the DS125MB203SQE/NOPB is rated for industrial temperature operation, making it compatible with server rack and storage enclosure environments where internal temperatures can reach elevated levels. Operating from 3.3V with built-in equalization across 4 channels at up to 12.5 Gbps, it maintains signal integrity in high-density SAS and SATA backplane configurations without requiring active cooling dedicated to the signal path.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $30.6800 | $30.68 |
| 10+ | $26.0800 | $260.80 |
| 250+ | $24.0100 | $6002.50 |
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