Maxim Integrated MAX5035BUSA+T, Buck, Step-Down, 1 Output, 1A, 125kHz, 8-SOIC, Fixed 5V Output, 7.5V to 76V Input, Surface Mount, 0°C to 85°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 7.5V |
| Voltage - output (Min (Fixed)) | 5V |
| Output current | 1A |
| Frequency | 125kHz |
| I/O channels | 1 |
| Operating temperature | 0°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Output configuration | Positive |
| Synchronous rectifier | No |
The MAX5035BUSA+T is a step-down (buck) switching regulator that delivers a fixed 5 V output at up to 1 A from a DC input spanning 7.5 V to 76 V.
At 1 A, the MAX5035BUSA+T is sized for powering a small microcontroller, a few op-amps, a sensor cluster, or a low-power wireless module. The fixed 5 V output suits legacy logic families, 5 V sensors, and many industrial analog front-ends.
Both are non-synchronous buck regulators with a similar output current and fixed 5 V option. The MAX5035BUSA+T accepts a higher maximum input (76 V vs 40 V for the LM2596), making it a better fit for 48 V or 72 V buses. The LM2596 typically switches at 150 kHz versus 125 kHz for the MAX5035, so the magnetics are comparable in size. The MAX5035 comes in an 8-SOIC package; the LM2596 is available in TO-220 and TO-263. For a 5 V 1 A design on a 24 V or lower rail, either works; for a 48 V or 72 V rail, the MAX5035 is the safer choice.
Within the MAX5035 family, the MAX5035AUSA+T and MAX5035CUSA+T share the same 8-SOIC pinout and input voltage range but offer output voltages of 3.3 V and 12 V respectively, not higher current. For higher output current in a similar footprint, consider the MAX5037 series (up to 2 A) in a different package — verify pin compatibility against your layout.