component
HX3002-AF7C
Public Made by Adomby adom
HEXIN DC-DC Converters, SOT-23-6. 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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Contents
README
markdownHX3002-AF7C
HEXIN · DC-DC Converters · SOT-23-6
HX3002-AF7C from HEXIN, in a SOT-23-6. 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 | EN | input | Logic-controlled shutdown input where high gives normal 1.4MHz operation and low gives shutdown with 2µA quiescent current, with VEN absolute maximum range of -0.3V to 6.6V. |
| 2 | GND | power_in | Signal and power ground that should have a short direct PCB path to the negative side of the output capacitor(s). |
| 3 | GND | power_in | Signal and power ground that should have a short direct PCB path to the negative side of the output capacitor(s). |
| 4 | SW | passive | Switch pin to which the inductor connects, to be kept as short and wide as possible to reduce EMI and voltage overshoot, with VSW absolute maximum range of -0.3V to 6.6V. |
| 5 | VOUT | power_out | Output voltage pin, with VOUT absolute maximum range of -0.3V to 6.6V and an adjustable output of 2.5V to 5V, whose trace to the output filter capacitor should be as short and wide as possible. |
| 6 | FB | input | Feedback input to the gm error amplifier, connected to the resistor divider tap so that VOUT = VFB × [1 + (R1/R2)], with a feedback voltage of 1.165V to 1.241V for the HX3002-AF7C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEXIN |
| Package | SOT-23-6 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Range (Adj.) | VOUT | 2.5 | 5 | V | 4 | ||
| Minimum Start-up Voltage (Note 3) | VSTART | 2 | V | ILOAD=1mA, For HX3002-AF7C | 4 | ||
| Minimum Operating Voltage | VHOLD | 0.6 | 0.75 | V | VEN=VIN | 4 | |
| Quiescent Current | IQ | 500 | μA | ILOAD=0mA, For HX3002-AF7C (VIN=2.5V) | 4 | ||
| Shutdown Current | ISHDN | 0.1 | 1 | μA | VEN=0V, Including Switch Leakage | 4 | |
| Feedback Voltage | VFB | 1.165 | 1.212 | 1.241 | V | For HX3002-AF7C | 4 |
| Feedback Input Current | IFB | 1 | nA | VFB=1.22V | 4 | ||
| Switching Frequency | fOSC | 1.1 | 1.4 | 1.7 | MHz | 4 | |
| DC Max Duty Cycle | 80 | 87 | % | VFB=1.15V | 4 | ||
| En Input High | VENH | 1 | V | 4 | |||
| En Input Low | VENL | 0.5 | V | 4 | |||
| En Input Current | IEN | 0.01 | 1 | μA | VEN=5.5V | 4 | |
| NMOS Current Limit | ILIM-N | 700 | 850 | mA | 4 | ||
| NMOS Switch Leakage | ILK-N | 0.1 | 5 | μA | VSW=5V | 4 | |
| PMOS Switch Leakage | ILK-P | 0.1 | 5 | μA | VSW=0V | 4 | |
| NMOS Switch On Resistance | RNFET | 0.35 | Ω | VOUT=.3V | 4 | ||
| PMOS Switch On Resistance | RPFET | 0.45 | Ω | VOUT =3.3V | 4 | ||
| VIN for HX3002-AF7C | VIN | -0.3 | 5 | V | Printed row label reads HX3001-AF7C | 3 | |
| VOUT | VOUT | -0.3 | 6.6 | V | 3 | ||
| VSW | VSW | -0.3 | 6.6 | V | 3 | ||
| VEN | VEN | -0.3 | 6.6 | V | 3 | ||
| Operating Temperature Range | -40 | 85 | ℃ | Note 2: guaranteed performance 0℃ to 70℃ | 3 | ||
| Storage Temperature Range | -65 | 150 | ℃ | 3 | |||
| Junction Temperature | -40 | 125 | ℃ | 3 | |||
| Lead Temperature (Soldering) | 265 | ℃ | 10 sec. | 3 | |||
| Input Voltage | VIN | 2 | 4.4 | V | HX3002-AF7C | 1 | |
| Minimum Inductance | L | 2.2 | μH | 3.6V and lower voltage applications | 7 | ||
| Minimum Inductance | L | 4.7 | μH | output voltages greater than 3.6V | 7 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | advertised performance with careless layout. A large ground pin copper area will help to lower the chip | 8 |
CAD (KiCad official)
- Symbol:
HX3002-AF7C - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
hx3002-af7c-etched.step/hx3002-af7c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx3002-af7c.step/hx3002-af7c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEXIN datasheet (9 pp, sha256
c92da3e05417f8b3, retrieved 2026-10-18, 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).