component
HT33
Public Made by Adomby adom
XCH(旭昌辉) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. 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
markdownHT33
XCH(旭昌辉) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
HT33 from XCH(旭昌辉), in a SOT-23. 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 reference pin for the regulator; the datasheet's pin function table lists it as ground (地). |
| 2 | VOUT | power_out | Regulated output; the datasheet requires an output-to-ground capacitor greater than 2.2 µF, with tantalum recommended, and the output is held at the set voltage (2.8 V to 9.0 V range across the series, 3.3 V for HT33). |
| 3 | VIN | power_in | Input supply pin; the absolute maximum VIN is -0.3 V to +26 V and the stated input voltage limit is 24 V, and capacitors should be placed close to the VIN and VOUT pins. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XCH(旭昌辉) |
| Package | SOT-23 |
| 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 | 3.234 | 3.3 | 3.366 | V | VIN=VOUT+2.0V, IOUT=10mA | 4 |
| Output voltage accuracy | -2 | 2 | % | 1 | |||
| Output current | IOUT | 70 | 100 | mA | VIN=VOUT+2.0V | 4 | |
| Quiescent current | ISS | 1.5 | 3 | μA | No load | 4 | |
| Dropout voltage | VDIF | 25 | 55 | mV | IOUT=1mA, ΔVOUT=2% | 4 | |
| Load regulation | ΔVOUT | 25 | 60 | mV | VIN=VOUT+2.0V, 1mA≤IOUT≤50mA | 4 | |
| Line regulation | ΔVOUT/VOUT*ΔVIN | 0.2 | %/V | VOUT+1.0V≤VIN≤24V, IOUT=1mA | 4 | ||
| Input voltage | VIN | 24 | V | 4 | |||
| Input voltage (absolute maximum) | VIN | -0.3 | 26 | V | 2 | ||
| Storage temperature | TSTG | -50 | 125 | ℃ | 2 | ||
| Operating temperature | TA | -40 | 85 | ℃ | 2 | ||
| Output voltage temperature coefficient | ΔVOUT/ΔTA*VOUT | 100 | ppm/℃ | VIN=VOUT+2.0V, IOUT=10mA, -40℃≤TA≤85℃ | 4 |
CAD (KiCad official)
- Symbol:
HT33 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ht33-etched.step/ht33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht33.step/ht33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XCH(旭昌辉) datasheet (9 pp, sha256
b1c696830fe50759, 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).