TPS726126DCQG4 Texas Instruments Integrated Circuit (SOT223 (5-Pin)) In Stock
Texas Instruments TPS726126DCQG4 is a fixed 1.26 V, 1 A LDO linear voltage regulator with ±2 % accuracy in a 6-pin SOT-223 package. It accepts input voltages from 1.8 V to 6 V with a maximum dropout of 1 V, making it ideal for tight voltage rails. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (5-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- TPS726126DCQG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS726126DCQG4?
- Fixed 1.26 V output with ±2 % accuracy delivering a stable rail for FPGA and DSP core supply
- 1 A continuous output current with up to 1 V dropout voltage across a 1.8 V to 6 V input range
- 6-pin SOT-223 package with exposed thermal pad enabling compact, thermally-efficient PCB layout
What is TPS726126DCQG4 used for?
The TPS726126DCQG4 is well-suited for powering FPGA core voltages, DSP logic rails, and microcontroller I/O banks that require a stable 1.26 V supply at up to 1 A. Its wide input range of 1.8 V to 6 V accommodates both 3.3 V and 5 V system buses, reducing the need for multiple regulator variants in mixed-voltage designs. The SOT-223 footprint with thermal pad supports efficient heat dissipation in space-constrained telecom and industrial PCB layouts.
What are the specifications of TPS726126DCQG4?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 7V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.8V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.00612% |
| Load Regulation-Max | 0.00315% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 1.298V |
| Output Voltage1-Min | 1.222V |
| Output Voltage1-Nom | 1.26V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | SOT223 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS726126DCQG4 datasheet?
TPS726126DCQG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS726126DCQG4?
Compatible alternatives and drop-in replacements for TPS726126DCQG4:
Frequently Asked Questions
What is the maximum continuous output current TPS726126DCQG4 can supply, and at what dropout voltage?
The TPS726126DCQG4 delivers up to 1 A of continuous output current with a maximum dropout voltage of 1 V. This means a 2.26 V or higher input is sufficient to maintain a regulated 1.26 V output, making the device compatible with 2.5 V or 3.3 V bus voltages commonly found in FPGA and embedded processor power trees.
For an FPGA core supply design, how does the ±2 % output accuracy of TPS726126DCQG4 affect margin calculations?
With a ±2 % tolerance on the 1.26 V output, the regulator holds the core rail between 1.235 V and 1.285 V across load and temperature. Most FPGA vendors specify a ±5 % tolerance on core voltage, so the TPS726126DCQG4 consumes only 2 of the 5 available percentage points, leaving 3 % margin for PCB trace drop and capacitor ESR transients at 1 A load steps.
Why choose the SOT-223 package of TPS726126DCQG4 over a TO-252 footprint for a compact power board?
The 6-pin SOT-223 package of TPS726126DCQG4 measures approximately 6.5 mm × 3.5 mm, significantly smaller than a TO-252 at 6.6 mm × 5.9 mm, while the exposed thermal tab on pin 2 can dissipate up to roughly 1 W into a 2-layer PCB copper pour. This combination of smaller footprint and adequate thermal performance makes it preferable for battery charger modules and DC-DC post-regulators where board area is constrained.
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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.
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