component
ME3148ASPG
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MICRONE DC-DC Converters, ESOP-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
markdownME3148ASPG
MICRONE · DC-DC Converters · ESOP-8
ME3148ASPG from MICRONE, in a ESOP-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 | NC | unconnected | Not connected. Leave floating or tie to a non-signal net per PCB layout preference. |
| 2 | SW | output | Power switch output pin. Connects to the external inductor/Schottky diode of the buck converter. Datasheet notes that large current at the SW node should be drawn from the exposed thermal pad rather than pin 2, so pin 2 should not carry large current. |
| 3 | GND | power_in | Ground pin. Reference for the internal control circuitry and return for input decoupling. |
| 4 | FB | input | Feedback input for the constant-voltage loop. Regulated to the internal 1.25V reference (typ; 1.232-1.268V). External resistor divider from Vout sets Vout = 1.25V × (1 + R2/R1). Absolute max FB voltage: -0.3V to 45V. |
| 5 | CS | input | Output current-sense input for the constant-current loop. Regulates the voltage across the external sense resistor to 115 mV typical (109.5-120.5 mV), giving ILED = 0.12V / Rcs. Tie CS to GND when only the constant-voltage loop is used. |
| 6 | NC | unconnected | Not connected. Leave floating. |
| 7 | VC | passive | Internal voltage-regulator bypass. Connect a 1 µF capacitor between VC (pin 7) and VIN (pin 8). For the constant-current loop, use a 1-4 nF CC capacitor between pins 7 and 8 to ensure loop stability. |
| 8 | VIN | power_in | Supply input, 8V-36V operating range (absolute max 45V). UVLO ~5V, OVP 37-45V (typ 42V). Bypass with a low-ESR input capacitor (e.g., 100 µF / 50V) close to the pin. |
| 9 | SW (Thermal PAD) | output | Exposed thermal pad on the package underside. Electrically tied to the SW node and intended to carry the high SW current (per datasheet, large current should be drawn from the thermal pad rather than pin 2). Also provides the main thermal path to the PCB copper pour. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
ME3148ASPG
CAD (KiCad official)
- Symbol:
ME3148ASPG - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
me3148aspg-etched.step/me3148aspg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);me3148aspg.step/me3148aspg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MICRONE datasheet (10 pp, sha256
2cd9b651fbcd23bf, 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).