# TP9001-28S5

**TECH PUBLIC** · Linear Voltage Regulators (LDO) · SOT-23-5

TP9001-28S5 from TECH PUBLIC, in a SOT-23-5. 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 | VIN | power_in | Supply power input; absolute maximum input voltage is 7 V. |
| 2 | GND | power_in | Ground. |
| 3 | CE | input | Enable pin; CE enable voltage is 1.1 V (min) and standby current is 1 uA max at VCE=0V. |
| 4 | NC | unconnected | No connection. |
| 5 | VOUT | power_out | Regulated voltage output (2.8 V for this -28 variant) delivering up to 500 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage accuracy | VOUT(E) | 0.98 |  | 1.02 | xVOUT(T) | IOUT=40mA, VIN=Vout+1V | 3 |
| Input Voltage | VIN |  |  | 7 | V |  | 3 |
| Standby Current | ICEL |  |  | 1 | μA | Vce=0V | 3 |
| Input Voltage (absolute maximum) | VIN |  |  | 7 | V | TA=25°C | 3 |
| Power Dissipation | PD |  |  | 250 | mW | SOT-23-5 | 3 |
| Operating Ambient Temperature | Topr | -40 |  | 85 | °C |  | 3 |
| Storage Temperature | Tstg | -40 |  | 125 | °C |  | 3 |
| Output Current (absolute maximum) | Iout |  |  | 600 | mA |  | 3 |
| CE Enable Voltage | VCE | 1.1 |  |  | V | VIN=Vout+1V | 3 |
| Max. Output Current | IOUTmax |  | 500 |  | mA | VIN=Vout+1V | 3 |
| Load Regulation | ∆VOUT |  | 50 |  | mV | VIN=Vout+1V, 1mA≤IOUT≤100mA | 3 |
| Dropout Voltage 1 | Vdif1 |  | 100 |  | mV | IOUT =100mA | 3 |
| Dropout Voltage 2 | Vdif2 |  | 300 |  | mV | IOUT =200mA | 3 |
| Supply Current | ISS |  | 60 |  | μA | VIN=Vout+1V | 3 |
| Line Regulation | ∆VOUT/(∆VIN•VOUT) |  | 0.03 |  | %/V | IOUT =40mA, Vout+1V ≤VIN≤8V | 3 |
| Output Noise | en |  | 50 |  | uVrms | IOUT =40mA, 300Hz~50kHz | 3 |
| Ripple Rejection Rate | PSRR |  | 70 |  | dB | Vin=[Vout+1]V+1Vp-pAC, IOUT =40mA, f=1kHz | 3 |

## CAD (KiCad official)

- Symbol: `TP9001-28S5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tp9001-28s5-etched.step` / `tp9001-28s5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tp9001-28s5.step` / `tp9001-28s5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tp9001-28s5-datasheet.pdf) (5 pp, sha256 `a4bc6d77d6c5295c`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/tp9001-28s5-datasheet.pdf)