# TPS22942DCKR

**Texas Instruments** · Power Distribution Switches · SC-70-5

TPS22942DCKR from Texas Instruments, in a SC-70-5. 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 | Switch output; place ceramic bypass capacitor(s) between this terminal and GND. |
| 2 | GND | power_in | Ground reference for the device; place bypass capacitors between VIN or VOUT and this terminal. |
| 3 | OC | output | Active-low, open-drain over-current flag that indicates an over current, supply undervoltage, or over temperature state. |
| 4 | ON | input | Switch control input that must not be left floating. |
| 5 | VIN | power_in | Switch input; place ceramic bypass capacitor(s) between this terminal and GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage range VIN, VOUT, ON | VI | -0.3 |  | 6 | V |  | 3 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 3 |
| Electrostatic discharge, human body model | VESD | -4 |  | 4 | kV | HBM, per ANSI/ESDA/JEDEC JS-001, all pins | 3 |
| Electrostatic discharge, charged device model | VESD | -1 |  | 1 | kV | CDM, per JEDEC JESD22-C101, all pins | 3 |
| Input voltage | VIN | 1.62 |  | 5.5 | V |  | 4 |
| Ambient free-air temperature | TA | -40 |  | 85 | °C |  | 4 |
| Junction-to-ambient thermal resistance | θJA |  | 294 |  | °C/W |  | 4 |
| Junction-to-case (top) thermal resistance | θJC(top) |  | 59.2 |  | °C/W |  | 4 |
| Junction-to-board thermal resistance | θJB |  | 95.4 |  | °C/W |  | 4 |
| Junction-to-top characterization parameter | ψJT |  | 0.7 |  | °C/W |  | 4 |
| Junction-to-board characterization parameter | ψJB |  | 93.9 |  | °C/W |  | 4 |
| Quiescent current | IIN |  | 40 | 80 | μA | IOUT = 0 mA, VIN = 1.62 V to 5.5 V, Full range | 4 |
| OFF-state supply current | IIN(OFF) |  |  | 1 | μA | VIN = 3.6 V, VOUT open, VON = VIN (TPS22941/2), Full range | 4 |
| OFF-state switch current | IOUT(LEAKAGE) |  |  | 1 | μA | VIN = 3.6 V, VOUT short to GND, VON = VIN (TPS22941/2), Full range | 4 |
| ON-state resistance | rON |  | 0.4 | 0.5 | Ω | IOUT = 20 mA, VIN = 5.5 V, 25°C | 4 |
| ON-state resistance | rON |  |  | 0.6 | Ω | IOUT = 20 mA, VIN = 5.5 V, Full range | 4 |
| ON-state resistance | rON |  | 0.5 | 0.6 | Ω | IOUT = 20 mA, VIN = 3.3 V, 25°C | 4 |
| ON-state resistance | rON |  |  | 0.7 | Ω | IOUT = 20 mA, VIN = 3.3 V, Full range | 4 |
| ON-state resistance | rON |  | 0.6 | 0.7 | Ω | IOUT = 20 mA, VIN = 2.5 V, 25°C | 4 |
| ON-state resistance | rON |  |  | 0.8 | Ω | IOUT = 20 mA, VIN = 2.5 V, Full range | 4 |
| ON-state resistance | rON |  | 0.8 | 0.9 | Ω | IOUT = 20 mA, VIN = 1.8 V, 25°C | 4 |
| ON-state resistance | rON |  |  | 1.1 | Ω | IOUT = 20 mA, VIN = 1.8 V, Full range | 4 |
| ON-state resistance | rON |  | 0.9 | 1.1 | Ω | IOUT = 20 mA, VIN = 1.62 V, 25°C | 4 |
| ON-state resistance | rON |  |  | 1.2 | Ω | IOUT = 20 mA, VIN = 1.62 V, Full range | 4 |
| ON input leakage current | ION |  |  | 1 | μA | VON = VIN or GND, Full range | 4 |
| Current limit (TPS22942/4/5) | ILIM | 100 | 150 | 200 | mA | VIN = 3.3 V, VOUT = 3 V, Full range | 4 |
| Undervoltage shutdown, VIN increasing | UVLO | 1.32 | 1.42 | 1.52 | V | VIN increasing, Full range | 5 |
| OC output logic low voltage | VOL |  | 0.1 | 0.2 | V | VIN = 5 V, ISINK = 10 mA, Full range | 5 |
| OC output logic low voltage | VOL |  | 0.1 | 0.3 | V | VIN = 1.8 V, ISINK = 10 mA, Full range | 5 |
| OC output high leakage current | IOZ |  |  | 0.5 | μA | VIN = 5 V, Switch ON, Full range | 5 |
| ON high-level input voltage | VIH | 1.1 |  |  | V | VIN = 1.8 V, Full range | 5 |
| ON high-level input voltage | VIH | 1.3 |  |  | V | VIN = 2.5 V, Full range | 5 |
| ON high-level input voltage | VIH | 1.4 |  |  | V | VIN = 3.3 V, Full range | 5 |
| ON high-level input voltage | VIH | 1.7 |  |  | V | VIN = 5.5 V, Full range | 5 |
| ON low-level input voltage | VIL |  |  | 0.5 | V | VIN = 1.8 V, Full range | 5 |
| ON low-level input voltage | VIL |  |  | 0.7 | V | VIN = 2.5 V, Full range | 5 |
| ON low-level input voltage | VIL |  |  | 0.8 | V | VIN = 3.3 V, Full range | 5 |
| ON low-level input voltage | VIL |  |  | 0.9 | V | VIN = 5.5 V, Full range | 5 |
| ON high-level input leakage current | II |  |  | 1 | μA | VIN = 1.8 V to 5 V, Switch ON, Full range | 5 |
| Over current blanking time (TPS22942) | tBLANK | 5 | 10 | 20 | ms | TPS22941/2/5 | 5 |
| Auto-restart time (TPS22942) | tRSTART | 40 | 80 | 160 | ms | TPS22941/2/5 | 5 |

## CAD (KiCad official)

- Symbol: `TPS22942DCKR`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `tps22942dckr-etched.step` / `tps22942dckr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps22942dckr.step` / `tps22942dckr.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/lit/ds/symlink/tps22942.pdf) (25 pp, sha256 `b5668708867c75e7`, retrieved 2026-11-06, tier: manufacturer)
- **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/tps22942dckr-datasheet.pdf)