Texas Instruments TPS62228DDCTG4, step-down buck converter, 400 mA output, fixed 1.875 V, 1.25 MHz switching, synchronous rectifier, SOT-23-Thin package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting type | Surface Mount |
| Voltage - input | 2.5V |
| Voltage - output (Min (Fixed)) | 1.875V |
| Current - output | 400mA |
| Frequency | 1.25MHz |
| Number of outputs | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR) |
| Function | Step-Down |
| Topology | Buck |
| Case | SOT-23-5 Thin, TSOT-23-5 |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
Expert opinion by Distributor Dahlia · Authorized Distributor Product & Sourcing Specialist
The TPS62228DDCTG4 from Texas Instruments is a synchronous step-down (buck) converter delivering a fixed 1.875 V output from an input range of 2.5 V to 6 V. It is designed for low-power, space-constrained applications such as portable devices, battery-powered equipment, and point-of-load regulation where a single 400 mA rail at 1.875 V is needed.
The 1.25 MHz switching frequency allows the use of small external inductors and capacitors, shrinking the overall solution footprint.
Yes, Texas Instruments lists the TPS62228DDCTG4 as obsolete. It is not recommended for new designs and is only available through surplus or broker channels.