Maxim Integrated MAX803LEXR-T, Simple Reset/Power-On Reset, Active Low, Open Drain, 140ms min reset timeout, 4.63V threshold, SC-70-3, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting type | Surface Mount |
| Voltage - threshold | 4.63V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C ~ 125°C (TA) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Bulk |
| Reset timeout | 140ms Minimum |
| Case | SC-70, SOT-323 |
Housed in a 3-pin SC-70 (SOT-323) package, the MAX803LEXR-T takes minimal board area. The SC-70-3 footprint is shared across many simple reset ICs, so layout reuse is straightforward. Surface-mount only.
Listed as Active with no end-of-life notice. No LTB risk for current builds. Note that this part is marked RoHS non-compliant, so verify your assembly's exemption or waiver if you are in a RoHS-regulated region.
MAX803LEXR-T is listed as Active with no end-of-life notice. It remains suitable for new designs and production replenishment.
The reset timeout is a minimum of 140ms. This ensures the processor supply and oscillator have settled before the reset is released.
The MAX803 family includes multiple threshold variants (e.g., 2.93V, 3.08V, 4.38V) in the same SC-70-3 footprint. For a 4.63V threshold, the MAX803LEXR-T is the specific variant. Pin-compatible supervisors from other manufacturers exist but verify threshold and timeout against your design.
It is a Simple Reset/Power-On Reset IC. It asserts reset when the supply voltage falls below the threshold and holds it for the timeout period after recovery.