component
HX1304F-AGC-A
Public Unreviewedby Ray
HEXIN DC-DC Converters, SOP-8. Datasheet-verified pinout, 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
markdownHX1304F-AGC-A
HEXIN · DC-DC Converters · SOP-8
HX1304F-AGC-A from HEXIN, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | FB | input | Feedback pin. Receives the divided output voltage from an external resistor divider (R2/R3). Regulated to VREF = 1.21V (typ); VOUT = 1.21V * [1 + (R2/R3)]. Input current 0.05 uA typ; absolute max -0.3V to 6V. |
| 2 | RT | input | Oscillator frequency setting pin. A single resistor from RT to GND sets the switching frequency per RT(kOhm) = 22000 / fOSC(kHz). Internally held at ~0.6V. Programmable range 150kHz to 500kHz; abs max -0.3V to 6V. |
| 3 | ILIM | input | Programmable current limit pin. Sources 8.5 uA (typ) through an external resistor RLIM to GND; when the low-side switch valley current exceeds the threshold set by RLIM, the next on-cycle is terminated. RLIM(kOhm) = 24 * IMAX(A). Abs max -0.3V to 6V. |
| 4 | VIN | power_in | Main input supply. Operating range 10V to 30V (abs max 35V). Requires a low-ESR bypass capacitor (>= 47 uF) close to the pin to prevent input voltage transients. |
| 5 | SW | power_out | Switch node output to the external inductor. Internally driven by the synchronous P-channel (high-side) and N-channel (low-side) MOSFETs. Abs max -0.3V to (VIN + 1V). Tie to pin 6. |
| 6 | SW | power_out | Switch node output to the external inductor (paralleled with pin 5 for higher current handling). Abs max -0.3V to (VIN + 1V). |
| 7 | GND | power_in | Ground reference for the controller and internal low-side MOSFET source. Tie to pin 8 and to the PCB ground plane close to the input capacitor. |
| 8 | GND | power_in | Ground reference (paralleled with pin 7). Provides the return path for input, output, and analog signals. Connect analog grounds to a common node and back to power ground behind the output capacitors. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEXIN |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
HX1304F-AGC-A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEXIN datasheet (10 pp, sha256
f1225ef65d172909, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).