Texas Instruments TPS3809K33DBVT, Simple Reset/Power-On Reset, Active Low, Push-Pull output, 2.93V threshold, 120ms min reset timeout, -40°C to 85°C, SOT-23-3 package.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 2.93V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Reset | Active Low |
| Output | Push-Pull, Totem Pole |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | 120ms Minimum |
| Case | TO-236-3, SC-59, SOT-23-3 |
The TPS3809K33DBVT is a single-channel voltage supervisor from Texas Instruments, monitoring a 2.93V threshold with an active-low, push-pull reset output.
The SOT-23-3 footprint is a common, low-cost package with wide second-source compatibility, so BOM risk is minimal.
The reset is active low, and the output is push-pull (totem pole). This means the reset line is driven low when the monitored voltage drops below 2.93V, and it is actively driven high (not floating) when the supply is valid. No external pull-up resistor is needed.
The TLV803EA29VDBZR is a close functional peer — it also monitors a single voltage with active-low reset, but its output is open-drain (not push-pull), its reset timeout is 130ms minimum, and it operates up to 125°C. If your design requires a push-pull output, the TPS3809K33DBVT is the correct choice.