TPS54226ARGTR Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments TPS54226ARGTR is a 2A synchronous step-down converter accepting 4.5 V to 18 V input with Eco-Mode for high light-load efficiency. Integrates high-side and low-side MOSFETs with adjustable frequency up to 1.5 MHz in a compact QFN package. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- TPS54226ARGTR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4.5 V to 18 V wide input range covers 5 V, 9 V, 12 V, and 15 V rail applications in a single design
- Eco-Mode control reduces quiescent current at light loads, extending battery life in portable equipment
- Integrated high-side and low-side MOSFETs eliminate external switch components and reduce BOM count
- Adjustable switching frequency up to 1.5 MHz allows use of smaller inductors and capacitors for compact layouts
Applications
The TPS54226ARGTR is widely used in point-of-load power supplies for industrial sensors, telecom equipment, and embedded computing boards drawing from 12 V bus rails. Its Eco-Mode enables low standby power in battery-powered IoT nodes and handheld instruments. The high switching frequency and integrated MOSFETs allow designers to minimize PCB area while maintaining 2 A continuous output current.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS54226ARGTR:
Dual Switching Controller, Voltage-mode, 2A, 700kHz Switching Freq-Max, PQCC16
Dual Switching Controller, Voltage-mode, 2A, 700kHz Switching Freq-Max, PQCC16
Dual Switching Controller, Voltage-mode, 2A, 700kHz Switching Freq-Max, PDSO14
Dual Switching Controller, Voltage-mode, 2A, 700kHz Switching Freq-Max, PDSO14
Frequently Asked Questions
What input and output voltage ranges does the TPS54226ARGTR support in a 2 A buck application?
The TPS54226ARGTR accepts a 4.5 V to 18 V input and can produce an adjustable output down to 0.8 V, delivering up to 2 A continuous output current. This range covers 5 V, 12 V, and 15 V bus scenarios common in industrial and telecom power trees.
How does Eco-Mode improve efficiency when TPS54226ARGTR supplies a lightly loaded IoT sensor at 3.3 V output?
In Eco-Mode, the TPS54226ARGTR enters a pulse-skipping state at loads below roughly 100 mA, reducing switching losses and quiescent current. This keeps efficiency above 80% at light loads, extending battery runtime in 3.3 V sensor nodes compared to fixed-frequency designs.
Can TPS54226ARGTR operate at a switching frequency above 500 kHz and what inductor size does that allow?
Yes. The switching frequency is adjustable up to 1.5 MHz via an external resistor. At 1 MHz, a 1 µH inductor typically suffices for a 2 A, 3.3 V output from a 12 V input, significantly shrinking the footprint compared to 300 kHz designs requiring 4.7 µH or larger.
In which package does TPS54226ARGTR ship and how does it simplify thermal management?
It is available in a QFN package with an exposed thermal pad that conducts heat directly to the PCB copper plane. This allows the 2 A rated device to operate across a -40°C to 150°C junction temperature range without an external heatsink on most standard PCB layouts.
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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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