component
HX7550-HA
Public Made by Adomby adom
HX hengjiaxing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHX7550-HA
HX hengjiaxing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
HX7550-HA from HX hengjiaxing, in a SOT-89-3. 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 | Chip ground terminal (芯片接地端) for the HX75XX-HA LDO regulator, which has a 40 V maximum input voltage and a 5.0 V nominal output for HX7550-HA. |
| 2 | VIN | power_in | Start-up input terminal (启动输入端) with a maximum input voltage of 40 V per the absolute maximum ratings. |
| 3 | VOUT | power_out | Chip output terminal (芯片输出端) that delivers the regulated 5.0 V (4.85 V to 5.15 V, ±2%) for HX7550-HA with up to 100 mA typical output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HX hengjiaxing |
| Package | SOT-89-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage | VOUT | 4.85 | 5 | 5.15 | V | VIN=VOUT+2.0V， IOUT=10mA | 4 |
| Output current | IOUT | 60 | 100 | mA | VIN=VOUT+2.0V | 4 | |
| Load regulation | ΔVOUT | 60 | 150 | mV | VIN=VOUT+2.0V，1mA≤IOUT ≤50mA | 4 | |
| Quiescent current | ISS | 2 | 3 | µA | 无负载 | 4 | |
| Input voltage (electrical table) | VIN | 40 | V | 4 | |||
| Maximum input voltage | VIN | 40 | V | 2 | |||
| Power dissipation | PD | 200 | mW | 2 | |||
| Operating temperature | Tw | -40 | 85 | ℃ | 2 | ||
| Storage temperature | Tc | -50 | 125 | ℃ | 2 | ||
| Soldering temperature | Th | 260 | ℃ | 10s | 2 | ||
| Output voltage tolerance (as printed, plus-only) | 2 | % | 1 |
CAD (KiCad official)
- Symbol:
HX7550-HA - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
hx7550-ha-etched.step/hx7550-ha-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx7550-ha.step/hx7550-ha.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HX hengjiaxing datasheet (8 pp, sha256
d29dd5579fdd8851, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).