# TPS7A9101DSKR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SON-10-EP(2.5x2.5)

TPS7A9101DSKR from Texas Instruments, in a SON-10-EP(2.5x2.5). 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 | OUT | output | Regulated output with maximum voltage VIN + 0.3V; requires ≥10µF capacitor to GND for stability. |
| 2 | OUT | output | Regulated output with maximum voltage VIN + 0.3V; requires ≥10µF capacitor to GND for stability. |
| 3 | FB | input | Feedback input (maximum 3.6V) serving as control loop error amplifier input to set device output voltage. |
| 4 | GND | power_in | Device ground connected to thermal pad. |
| 5 | PG | tri_state | Open-drain power good indicator output (maximum 7.0V, 5mA sink current) requiring 10kΩ to 100kΩ external pullup resistor. |
| 6 | SS_CTRL | input | Soft start control input (0 to VIN + 0.3V) connected to GND or IN to change NR/SS capacitor charging current; must connect to GND if capacitor not used to avoid output overshoot. |
| 7 | EN | input | Enable input (0 to 7.0V) enabling regulator when VEN ≥ VIH(EN) and disabling when VEN ≤ VIL(EN); must connect to IN if enable function not used. |
| 8 | NR/SS | input | Noise reduction input (0 to 3.6V) for external capacitor connection to filter internal bandgap noise and set output ramp rate to limit inrush current. |
| 9 | IN | power_in | Input power supply (operating range 1.4V to 6.5V, maximum 7.0V) requiring ≥10µF ceramic input capacitor. |
| 10 | IN | power_in | Input power supply (operating range 1.4V to 6.5V, maximum 7.0V) requiring ≥10µF ceramic input capacitor. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SON-10-EP(2.5x2.5) |
| Category | Power Management (PMIC) |
| Pins | 11 |

## CAD (KiCad official)

- Symbol: `TPS7A9101DSKR`
- Footprint: `Package_SON:WSON-10-1EP_2.5x2.5mm_P0.5mm_EP1.2x2mm`
- 3D model: SON-10-EP(2.5x2.5) (KiCad packages3D, STEP)
- 3D model files: `tps7a9101dskr-etched.step` / `tps7a9101dskr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps7a9101dskr.step` / `tps7a9101dskr.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/tps7a91) (35 pp, sha256 `85aef68997137e55`, retrieved 2026-10-03, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/tps7a9101dskr-datasheet.pdf)