# TPS3619-33DGK

**Texas Instruments** · Supervisor And Reset ICs · VSSOP-8-0.65mm

TPS3619-33DGK from Texas Instruments, in a VSSOP-8-0.65mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | output | Supply output that connects to VDD or VBAT through internal switches, with continuous output current limited to 300 mA under the recommended operating conditions. |
| 2 | VDD | power_in | Input supply voltage, with a recommended operating range of 1.65 V to 5.5 V. |
| 3 | GND | power_in | Ground reference; all voltages in the absolute maximum ratings are specified with respect to GND. |
| 4 | PFI | input | Power-fail comparator input, compared against an internal 1.15 V reference, with input current limited to ±25 nA and a maximum voltage of VDD + 0.3 V. |
| 5 | PFO | output | Power-fail comparator output that goes low when PFI falls below the 1.15 V threshold and returns high after about 12 mV of hysteresis, with a low-level output of 0.4 V maximum at VDD = 3.3 V and IOL = 2 mA. |
| 6 | MR | input | Manual reset input with VIH of 0.7 × VDD and VIL of 0.3 × VDD, and an input transition rise and fall rate limited to 100 ns/V. |
| 7 | RESET | output | Active-low reset output that is asserted while VDD is below the threshold VIT and is released after a fixed 100 ms delay (60 to 140 ms) once VDD rises above VIT. |
| 8 | VBAT | power_in | Backup-battery input with a recommended supply voltage of 1.5 V to 5.5 V, which may exceed VDD. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TPS3619-33DGK`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `tps3619-33dgk-etched.step` / `tps3619-33dgk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3619-33dgk.step` / `tps3619-33dgk.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps3619) (19 pp, sha256 `38d6bfcf1de94bfc`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tps3619-33dgk-datasheet.pdf)