component
HX3033A-AFC
Public Made by Adomby adom
HEXIN DC-DC Converters, SOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| hx3033a-afc-etched.step | 23d ago |
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| README.md | 17d ago |
HX3033A-AFC
HEXIN · DC-DC Converters · SOT-23-6L
HX3033A-AFC from HEXIN, in a SOT-23-6L. 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 | AGND | power_in | Analog ground; the datasheet says to connect all analog grounds to a common node, which is then tied to the power ground behind the output capacitors. |
| 2 | SW | output | Switch node that connects the inductor between SW and VIN; keep its PCB trace short and wide to reduce EMI and voltage overshoot. |
| 3 | VDD | power_in | Output voltage sense input from which the NMOS switch gate drive is derived (the greater of VOUT and VIN); the EN pin must be tied to VDD, and the datasheet warns that EN should be inhibited when VDD may reach 5.5V or above. |
| 4 | EN | input | Logic-controlled ON/OFF input: high (VENH min 1 V) gives normal free-running operation and low (VENL max 0.6 V) gives shutdown. |
| 5 | FB | input | Feedback input to the gm error amplifier, connected to the resistor divider tap, with a reference voltage of 1.188 V to 1.236 V (1.212 V typical). |
| 6 | PGND | power_in | Power ground for the switching converter's output stage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEXIN |
| Package | SOT-23-6L |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | -0.3 | 6 | V | 2 | |||
| SW Pin Switch Voltage | -0.3 | 22 | V | 2 | |||
| Other I/O Pin Voltages (upper limit printed as VDD+0.3V) | -0.3 | V | Upper limit printed as (VDD + 0.3V) | 2 | |||
| Operating Temperature Range | -40 | 85 | ℃ | Note 2: guaranteed 0℃ to 70℃; -40℃ to 85℃ assured by design, characterization and SPC | 2 | ||
| Maximum Junction Temperature | 150 | ℃ | 2 | ||||
| Storage Temperature Range | -65 | 150 | ℃ | 2 | |||
| Lead Temperature (Soldering 10sec) | 265 | ℃ | Soldering 10 sec | 2 | |||
| Operating VDD Range | VDD | 2.5 | 5 | V | VDD Pin Voltage | 3 | |
| Feedback Reference Voltage | VFB | 1.188 | 1.212 | 1.236 | V | 3 | |
| Start-up Voltage | VSTART | 2.2 | V | IOUT = 1mA | 3 | ||
| Hold-up Voltage | VHOLD | 1.7 | V | IOUT = 1mA | 3 | ||
| Supply Current (Quiescent) | IQ | 692 | μA | VIN=2.5V | 3 | ||
| Supply Current (Quiescent) | IQ | 630 | μA | VIN=3.6V | 3 | ||
| Supply Current (Shutdown) | IOFF | 52 | μA | VEN=0V | 3 | ||
| FB Pin Bias Current | IFB | 100 | nA | 3 | |||
| EN High Threshold | VENH | 1 | V | VEN Rising | 3 | ||
| EN Low Threshold | VENL | 0.6 | V | 3 | |||
| EN Input Current | IEN | 8 | μA | VEN(H),VEN=2V | 3 | ||
| EN Input Current | IEN | 0.15 | μA | VEN(L),VEN=0.5V | 3 | ||
| Switching Frequency | FOSC | 400 | KHz | IOUT = 500mA | 3 | ||
| Frequency Change | ΔFOSC | 20 | KHz | VDD: 3V→5V | 3 | ||
| Maximum Duty | DC | 90 | % | 3 | |||
| SW ON Resistance | RSW | 300 | mΩ | 3 | |||
| Package Thermal Resistance (SOT-23-6L) | θJA | 220 | ℃/W | SOT-23-6L | 2 |
CAD (KiCad official)
- Symbol:
HX3033A-AFC - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files:
hx3033a-afc-etched.step/hx3033a-afc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx3033a-afc.step/hx3033a-afc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEXIN datasheet (9 pp, sha256
2025c37f1c804497, retrieved 2026-10-09, tier: lcsc) - 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).