# HX7550-1PKRG

**HANSCHIP semiconductor** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

HX7550-1PKRG from HANSCHIP semiconductor, in a SOT-89. 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 | power_in | Ground pin (地), the reference for the regulator. |
| 2 | VIN | power_in | Input pin; the input voltage must not exceed 30 V (absolute maximum supply voltage -0.3 to +30 V). |
| 3 | VOUT | power_out | Regulated output pin, rated for output current up to 100 mA (minimum 70 mA at VIN=VOUT+2V; 100 mA for the 5.0 V version the minimum is 100 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | SOT-89 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 输入电压 (Input voltage) | VIN |  |  | 30 | V |  | 5 |
| 输出电压 (Output voltage) | VOUT | 4.9 | 5 | 5.1 | V | VIN=VOUT+2V, IOUT=10mA | 5 |
| 输出电流 (Output current) | IOUT | 100 | 150 |  | mA | VIN=VOUT+2V | 5 |
| 负载调节率 (Load regulation) | △VOUT |  | 25 | 60 | mV | VIN=VOUT+2V, 1mA ≤ IOUT ≤ 50mA | 5 |
| Dropout 电压 (Dropout voltage) | VDIF |  | 2 | 4 | mV | IOUT=1mA, △Vo=2% | 5 |
| 静态电流 (Quiescent current) | ISS |  | 2 | 3 | uA | 无负载 (no load) | 5 |
| 输入电压调节率 (Input voltage regulation) |  |  |  | 0.2 | %/V | Vo+1V≤VIN≤30V, IOUT=1mA | 5 |
| 电源供应电压 (Supply voltage, absolute max) |  | -0.3 |  | 30 | V |  | 3 |
| 工作环境温度 (Operating ambient temperature) |  | -40 |  | 85 | ℃ |  | 3 |
| 储存温度范围 (Storage temperature range) |  | -45 |  | 140 | ℃ |  | 3 |
| 引脚温度 (Lead temperature, soldering) |  |  |  | 245 | ℃ | Soldering 10 s | 3 |
| 功耗限值 (Power dissipation limit) | PD |  |  | 0.5 | W | SOT-89 package, as stated in usage note example | 6 |
| 输出电容 (Output capacitor to GND) |  | 2.2 |  |  | uF | Required output capacitor, per usage notes | 6 |
| 输入/输出电容 (Recommended input/output polarized capacitor) |  |  | 10 |  | uF | Recommended at VIN and VOUT, placed close to pins | 6 |

## CAD (KiCad official)

- Symbol: `HX7550-1PKRG`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `hx7550-1pkrg-etched.step` / `hx7550-1pkrg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hx7550-1pkrg.step` / `hx7550-1pkrg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HANSCHIP semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757786895218814976) (10 pp, sha256 `a83947423f60ac82`, retrieved 2026-10-17, 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-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/hx7550-1pkrg-datasheet.pdf)