component
he9116a50nr
Public Unreviewedby Ray
HEERMICR DC-DC Converters, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownHE9116A50NR
HEERMICR · DC-DC Converters · SOT-23
HE9116A50NR from HEERMICR, in a SOT-23. 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 | GND | power_in | Ground reference pin (VSS). Connect to system ground; return for input capacitor, output capacitor, and inductor current return. |
| 2 | LX | power_out | Switching node - external inductor connection. Internal power MOSFET drain; inductor connects between VIN and this pin. Rated VSS-0.3 to VSS+8V, max 500mA. Protection disables switching if LX exceeds limits. |
| 3 | VOUT | power_out | Regulated output voltage pin. Internally sensed for feedback via integrated resistor divider (fixed 5.0V for A50 suffix, ±2%). Connect output capacitor (22µF tantalum recommended) between VOUT and GND. Also serves as input supply through the external inductor from the input rail. Rated VSS-0.3 to VSS+8V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEERMICR |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
HE9116A50NRANRHE9116A50NRHE9116A50NRA50NG
CAD (KiCad official)
- Symbol:
HE9116A50NR - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HEERMICR datasheet (None pp, sha256
d8d0150bf43a0ac2, 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).