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AS78L15RTR-E1

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Diodes Incorporated Dropout Regulators(LDO), SOT-89. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs as78l15rtr-e1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers as78l15rtr-e1: viewers · Ray 1mo ago
as78l15rtr-e1-etched.fit.json as78l15rtr-e1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
as78l15rtr-e1-etched.glb as78l15rtr-e1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
as78l15rtr-e1-etched.step as78l15rtr-e1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
as78l15rtr-e1.glb Publish 0.1.0 · Ray 1mo ago
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as78l15rtr-e1.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json as78l15rtr-e1: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md as78l15rtr-e1: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

AS78L15RTR-E1

Diodes Incorporated · Dropout Regulators(LDO) · SOT-89

AS78L15RTR-E1 from Diodes Incorporated, in a SOT-89. 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 OUTPUT power_out Regulated positive voltage output. Delivers a fixed 15V (±5%) at up to 100mA. A 0.1µF (min 0.01µF) output capacitor is recommended for stability and to limit high-frequency noise.
2 GND power_in Common ground reference for input and output. On the SOT-89 R package this pin also serves as the thermal tab (large metal pad on the underside) for heat sinking into the PCB copper.
3 INPUT power_in Unregulated positive supply input. For the AS78L15 variant Vin must be at least ~17.5V for regulation and is rated up to 36V absolute maximum (30V recommended operating). A 0.33µF input capacitor is recommended, especially when the regulator is located far from the bulk supply.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-89
Category Power Management ICs
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • AS78L15RTR-E1
  • AS78L15RTR-E1R
  • AS78L15RTR-E1Z
  • AS78L15RTR-E1M

CAD (KiCad official)

  • Symbol: AS78L15RTR-E1
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: as78l15rtr-e1-etched.step / as78l15rtr-e1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); as78l15rtr-e1.step / as78l15rtr-e1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (17 pp, sha256 dae32ffe04830377, 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).

Datasheet PDF