component
LW5918N11E
Public Made by Adomby adom
Lewa Micro Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN1x1-4L. 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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README
markdownLW5918N11E
Lewa Micro · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN1x1-4L
LW5918N11E from Lewa Micro, in a DFN1x1-4L. 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 | VOUT | output | Regulated output pin that needs a low-ESR capacitor, with the nominal recommended value or larger from OUT to GND for best transient response, and an internal pulldown discharges OUT when the regulator is in shutdown (VEN < VEN(LOW)). |
| 2 | GND | power_in | Ground pin, which should be connected to a separate ground plane from VIN and VOUT so the two planes meet only at this pin. |
| 3 | EN | input | Enable pin that must not be left floating: drive it above VEN(HI) (1.5V typ/min) to turn the regulator on and below VEN(LO) (0.6V max) to put the LDO into shutdown, with EN rated 0 to 7.0V. |
| 4 | VIN | power_in | Input supply pin operating from 1.6V to 7.0V, which needs the recommended or larger ceramic input capacitor from IN to ground placed as close to the device as possible. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Lewa Micro |
| Package | DFN1x1-4L |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LW5918N11E - Footprint:
Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm - 3D model: DFN1x1-4L (KiCad packages3D, STEP)
- 3D model files:
lw5918n11e-etched.step/lw5918n11e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lw5918n11e.step/lw5918n11e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Lewa Micro datasheet (25 pp, sha256
53294d4f1daeb984, 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).