component
AMS1117S-3.3
Public Made by Adomby adom
JSMSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185
{
"schema_version": 1,
"type": "component",
"slug": "ams1117s-3-3",
"title": "AMS1117S-3.3",
"brief": "JSMSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
"version": "0.2.1",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"pmic",
"ams1117s-3.3"
],
"component": {
"mpn": "AMS1117S-3.3",
"manufacturer": "JSMSEMI",
"package": "SOT-89-3",
"pin_count": 3,
"category": "PMIC",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2b1ba83157b55206c182523cd0bbe380.pdf",
"parts": {
"symbol": "ams1117s-3-3.kicad_sym",
"footprint": "ams1117s-3-3.kicad_mod",
"model_3d": "ams1117s-3-3-etched.glb",
"model_3d_plain": "ams1117s-3-3.glb",
"model_3d_step": "ams1117s-3-3-etched.step",
"model_3d_step_plain": "ams1117s-3-3.step",
"lbr": "ams1117s-3-3.lbr"
},
"distributor_links": {
"lcsc": "C917152"
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin. On the fixed 3.3V version this pin is the device ground return; the internal voltage divider references this pin."
},
{
"number": "2",
"name": "VOUT",
"type": "power_out",
"description": "Regulated 3.3V output pin (typical 3.30V, min 3.234V, max 3.366V). Requires a minimum 10uF tantalum capacitor to GND (ESR ≤ 0.5Ω) for compensation and stability. Capable of sourcing up to 1A."
},
{
"number": "3",
"name": "VIN",
"type": "power_in",
"description": "Unregulated input voltage pin. Maximum input voltage 30V; requires at least VOUT + 1.3V (dropout) for regulation. A 10uF tantalum input bypass capacitor is recommended."
}
],
"provenance": {
"extractor": "ds2sf",
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/2b1ba83157b55206c182523cd0bbe380.pdf",
"pages": 9,
"sha256": "fa4bc29b88340b9a",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 3,
"described": 3,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"pin1": {
"pad": "1",
"at": [
-1.95,
-1.5
],
"corner": "top-left",
"source": "silk-marker",
"derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
"mark": "drawn"
},
"models_3d": [
{
"file": "ams1117s-3-3.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ams1117s-3-3-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "e9c81616b5f188db9d325b2b86408c4869d0b1b52324882e16a3b8c9e42694fd",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"characteristics": {
"version": 1,
"source": "datasheet",
"rows": [
{
"name": "Input voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ams1117s-3.3"
],
"discovery_pitch": "AMS1117S-3.3 (JSMSEMI) component page with datasheet-verified CAD.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ams1117s-3-3.kicad_sym",
"ams1117s-3-3.kicad_mod",
"ams1117s-3-3.glb",
"ams1117s-3-3.step",
"ams1117s-3-3-etched.step",
"ams1117s-3-3.lbr",
"docs/hero.png",
"docs/ams1117s-3-3-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"pads.json",
"ams1117s-3-3-etched.glb"
],
"visibility": "public",
"updated_at": "2026-09-24T16:23:56.436Z",
"description": "JSMSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
"org": "adom"
}