# TPS75425QPWPR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · HTSSOP-20-EP

TPS75425QPWPR from Texas Instruments, in a HTSSOP-20-EP. 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 | GND/HEATSINK | power_in | Ground/heatsink terminal connected directly to the mount pad for thermal-enhanced operation; it can be connected to GND or left floating. |
| 2 | NC | unconnected | Not connected. |
| 3 | IN | power_in | Regulator input voltage; absolute maximum input voltage range VIN is -0.3 to +6 V and an input bypass capacitor of 0.22 μF to 1 μF is recommended close to the input pins. |
| 4 | IN | power_in | Regulator input voltage; absolute maximum input voltage range VIN is -0.3 to +6 V and an input bypass capacitor of 0.22 μF to 1 μF is recommended close to the input pins. |
| 5 | EN | input | Negative polarity enable input: the device is enabled when EN is at logic low and shuts down at logic high, with an absolute maximum voltage range of -0.3 to +16.5 V. |
| 6 | RESET/PG | output | Open-drain power-good (PG) output for the TPS754xxQ, active high, going high-impedance when VOUT reaches 83% of its regulated voltage and requiring a pullup resistor; maximum PG voltage is 16.5 V. |
| 7 | FB/SENSE | input | Feedback input for the adjustable version, which must connect to an external resistor divider, or sense input for fixed-output versions, which must connect to the regulator output with the shortest possible connection. |
| 8 | OUTPUT | power_out | Regulated output voltage; an output capacitor of at least 47 μF with ESR between 100 mΩ and 10 Ω is required between OUT and GND for stability. |
| 9 | OUTPUT | power_out | Regulated output voltage; an output capacitor of at least 47 μF with ESR between 100 mΩ and 10 Ω is required between OUT and GND for stability. |
| 10 | GND/HEATSINK | power_in | Ground/heatsink terminal connected directly to the mount pad for thermal-enhanced operation; it can be connected to GND or left floating. |
| 11 | GND/HEATSINK | power_in | Ground/heatsink terminal connected directly to the mount pad for thermal-enhanced operation; it can be connected to GND or left floating. |
| 12 | NC | unconnected | Not connected. |
| 13 | NC | unconnected | Not connected. |
| 14 | NC | unconnected | Not connected. |
| 15 | NC | unconnected | Not connected. |
| 16 | NC | unconnected | Not connected. |
| 17 | GND | power_in | Ground reference for the regulator. |
| 18 | NC | unconnected | Not connected. |
| 19 | NC | unconnected | Not connected. |
| 20 | GND/HEATSINK | power_in | Ground/heatsink terminal connected directly to the mount pad for thermal-enhanced operation; it can be connected to GND or left floating. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-20-EP |
| Category | Power Management (PMIC) |
| Pins | 21 |

## CAD (KiCad official)

- Symbol: `TPS75425QPWPR`
- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`
- 3D model: HTSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `tps75425qpwpr-etched.step` / `tps75425qpwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps75425qpwpr.step` / `tps75425qpwpr.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/tps752) (33 pp, sha256 `ddac75f3b3fd04bf`, retrieved 2026-10-11, 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/tps75425qpwpr-datasheet.pdf)