2T03-01QDCKRG4Q1

@@ -0,0 +1,47 @@+# 2T03-01QDCKRG4Q1++**Texas Instruments** · Supervisor And Reset ICs · SC-70-5++2T03-01QDCKRG4Q1 from Texas Instruments, in a SC-70-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | NC | unconnected | No internal connection. Leave floating or tie to GND for best PCB robustness. |+| 2 | GND | power_in | Device ground reference. All voltage measurements are with respect to this pin. |+| 3 | RESET | output | Active-low reset output. On the TPS3803-01-Q1 this is an open-drain output (requires an external pull-up, typ. 50 kΩ to VDD); VOL ≤ 0.3 V at up to 3 mA. Asserted (low) whenever SENSE is below VIT = 1.226 V (typ) or during power-on until VDD exceeds ~0.8 V. |+| 4 | VDD | power_in | Input supply voltage, 1.3 V to 6 V recommended (7 V absolute max). Supply current ~2 µA typ at 3.3 V. TI recommends a 0.1-µF ceramic bypass capacitor placed close to this pin. On TPS3803-01-Q1 VDD is only the supply; the monitored rail is applied at SENSE via a resistor divider. |+| 5 | SENSE | input | Adjustable sense input. Compared against an internal 1.226 V reference (VIT: min 1.2 V, typ 1.226 V, max 1.244 V). Input current ±25 nA max, input capacitance ~1 pF. External resistor divider R1/R2 sets the monitored threshold: VIT' = (1 + R1/R2) × 1.226 V. A 1 nF-10 nF decoupling capacitor near this pin is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SC-70-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `2T03-01QDCKRG4Q1`+- `2T03-01QDCKRG4Q1TPS3803-01QDCKRQ1`++## CAD (KiCad official)++- Symbol: `2T03-01QDCKRG4Q1`+- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`+- 3D model: SC-70-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps3805h33-q1) (None pp, sha256 `12b36cc77b8601fa`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/2t03-01qdckrg4q1-datasheet.pdf)

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