Texas Instruments TPS3831G33DQNR, Simple Reset/Power-On Reset, Active Low, Push-Pull output, 3.08V threshold, 120ms minimum reset timeout, -40°C to 85°C, 4-X2SON (1x1) package.
| Parameter | Value |
|---|---|
| Type | Simple Reset/Power-On Reset |
| Mounting | Surface Mount |
| Voltage - threshold | 3.08V |
| 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 | 4-XDFN Exposed Pad |
The TPS3831G33DQNR: The 3.08V threshold monitors a 3.3V rail and asserts reset when it dips below that level — common for powering a 3.3V MCU or DSP core.
The 4-X2SON package measures 1x1 mm — that footprint saves board real estate but demands a fine-pitch stencil and careful solder-paste volume control during reflow.
Both are 3.3V rail supervisors with an active-low reset, but the TPS3823-33 has a watchdog timer and a manual reset input, while the TPS3831G33DQNR does not. The pinout also differs — the TPS3831 uses a 4-X2SON (1x1 mm) package versus the TPS3823's SOT-23-5. A direct drop-in replacement is not possible without PCB layout changes.