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AMS1117CD-5.0

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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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docs ams1117cd-5-0: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 26d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
ams1117cd-5-0-etched.fit.json ams1117cd-5-0: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ams1117cd-5-0-etched.glb ams1117cd-5-0: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 26d ago
ams1117cd-5-0-etched.step ams1117cd-5-0: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 26d ago
ams1117cd-5-0.glb Publish 0.1.0 · Ray 2mo ago
ams1117cd-5-0.kicad_mod Publish 0.1.0 · Ray 2mo ago
ams1117cd-5-0.kicad_sym Publish 0.1.0 · Ray 2mo ago
ams1117cd-5-0.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
ams1117cd-5-0.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json ams1117cd-5-0: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 26d ago
README.md ams1117cd-5-0: specified limits as data (metadata.characteristics, 20 rows from the datasheet) · Ray 27d ago

AMS1117CD-5.0

UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2

AMS1117CD-5.0 from UMW, in a TO-252-2. 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 / return for the regulator. On the fixed-voltage AMS1117-5.0 this pin is the device ground reference (labeled GND/ADJ in the shared pinout table; on fixed versions the internal F1/F2 fuses connect it as GND).
2 VOUT power_out Regulated 5.0V output (1.176-1.224V per-cell trim; fixed 5.0V ±2% for the -5.0 variant). Requires a ≥22µF tantalum output capacitor for stability. Rated 1A continuous; current-limited at ~2.1-2.5A. On TO-252 this pin is electrically tied to the exposed tab.
3 VIN power_in Unregulated input supply. Absolute maximum 18V; recommended operating input 12V max. For a 5.0V output, VIN must be ≥ VOUT + VDROP (typ. 1.2V @ 1A). A 10µF input capacitor is recommended.
4 TAB power_out Exposed thermal tab on TO-252 (DPAK). Electrically connected to VOUT (pin 2) - solder to a copper pour tied to VOUT for heatsinking. Junction-to-ambient thermal resistance is 100°C/W for the TO-252 package.

Key specifications

Parameter Value
Manufacturer UMW
Package TO-252-2
Category PMIC
Pins 4

Ordering variants

  • AMS1117CD-5.0
  • AMS1117CD-5.0S-5.0

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage (AMS1117-5.0 fixed) VOUT 4.9 5 5.1 V IOUT=10mA, VIN=7V, TJ=25°C 4
Output accuracy (fixed versions) -2 2 % Fixed versions (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V) 1
Ripple rejection PSRR 60 75 dB fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP 4
Adjust pin current change Iadj 0.2 5 µA 0≤ IOUT≤1A, 1.4V ≤VIN-VOUT≤10V 5
Adjust pin current Iadj 60 120 µA 5
Quiescent current Iq 5 10 mA 4
Dropout voltage Vdrop 1.2 1.3 V IOUT=1A 4
Current limiting Ilimit 2.1 2.5 A 5
ESD tolerance (minimum) ESD 2000 V Minimum ESD tolerance 3
Input supply voltage (absolute maximum) VIN 18 V 3
Lead temperature (soldering) TLead 260 °C Soldering, 5 seconds 3
Junction temperature range (absolute maximum) TJ 150 °C 3
Storage temperature range TSTG -65 150 °C 3
Input voltage (recommended) VIN 12 V 3
Junction temperature range (recommended) TJ -40 125 °C 3
Thermal resistance junction to ambient, TO-252 Rja 100 °C/W Junction to ambient, TO-252 package 3
Thermal shutdown TSD 150 °C 5
Output voltage temperature stability TSOUT 0.5 % 5
Long term stability 0.3 % TA=125°C, 1000Hrs 5
RMS output noise 0.003 % % of VOUT, 10Hz≤f≤10kHz 5

CAD (KiCad official)

  • Symbol: AMS1117CD-5.0
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2 (KiCad packages3D, STEP)
  • 3D model files: ams1117cd-5-0-etched.step / ams1117cd-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ams1117cd-5-0.step / ams1117cd-5-0.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ams1117cd-5-0.step 119 KB You want the bare part, or you mark your own boards.
ams1117cd-5-0-etched.step 1.7 MB You want the part with AMS1117CD-5.0 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 465 faces against 83 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: UMW datasheet (13 pp, sha256 5ec219092aa45bd9, 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