Maxim Integrated MAX653ESA+, Step-Down Buck Regulator, Adjustable (1.3V) or Fixed 3V Output, 225mA, 4V to 11.5V Input, 8-SOIC Surface Mount, -40°C to 85°C, Tube.
| Parameter | Value |
|---|---|
| Output type | Adjustable (Fixed) |
| Mounting | Surface Mount |
| Voltage - input | 11.5V |
| Voltage - output | 11.5V |
| Voltage - output (Min (Fixed)) | 1.3V (3V) |
| Output current | 225mA |
| I/O channels | 1 |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Function | Step-Down |
| Topology | Buck |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Output configuration | Positive |
| Synchronous rectifier | No |
The Maxim Integrated MAX653ESA+ is a step-down (buck) switching regulator delivering up to 225 mA from a 4 V to 11.5 V input rail. Output is adjustable down to 1.3 V or can be set to a fixed 3 V.
Housed in an 8-SOIC (0.154" width, 3.90 mm body) surface-mount package. Ships in Tube — store the reels dry if you're pulling from bulk inventory; the SOIC-8 is not moisture-sensitive by default, but good practice keeps the shelf life predictable.
It is listed as Adjustable (Fixed), meaning the part can be configured as an adjustable regulator down to 1.3 V, or ordered with a fixed 3 V output. The same order code covers both variants.
Yes, the 4 V minimum input covers 5 V rails. A 5 V to 3.3 V conversion at 225 mA is within the part's ratings.