SOT-223 · 4P
4P6.5×3.5×1.80mmP=2.29mm
AMS1117 (SOT-223)
Synchronized Pinout (Symbol / 2D / 3D) (4/4)
Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| 1 | GND/ADJ | GND | Ground Reference Pin (GND/ADJ) |
| 2 | VOUT | Power | Regulated Power Output (VOUT — VIN up to 15V -> Regulated 3.3V VOUT) |
| 3 | VIN | Power | Power Supply Input (VIN — VIN up to 15V -> Regulated 3.3V VOUT) |
| 4 | VOUT_TAB | Power | Regulated Power Output (VOUT_TAB — VIN up to 15V -> Regulated 3.3V VOUT) |
PIN 1 GND/ADJ
GNDGround Reference Pin (GND/ADJ)
Design note: Ground reference for fixed 3.3V version (or Adjust pin for adjustable version)
IPC-7351B Solder Density & Span C/G/Z Tuner
Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 17 Extracted Figures)
Read the original datasheet PDF directly or click any drawing to view fullscreen1. Realistic 3D PackageREPRESENTATIVE
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
True package pinout (4 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
SOT-223 · 6.50×3.50mm · Pitch 2.29mmExpand ›
5. Recommended Land PatternLAND PATTERN
IPC-7351B Footprint (4 Pads)Expand ›
6. Application SchematicSCHEMATIC
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (17 figures · Page 1/2)
Showing 1–12 of 17 uncropped original figures for AMS1117
P1 · p01_fig01EXACT PACKAGE
P7 · p07_fig02EXACT PACKAGE
P7 · p07_fig03EXACT PACKAGE
P2 · p02_fig01P2
P3 · p03_fig01P3
P4 · p04_fig011282×711px
P4 · p04_fig021272×638px
P5 · p05_fig011468×1311px
P5 · p05_fig01P5
P5 · p05_fig02P5
P6 · p06_fig012988×1800px
P6 · p06_fig022321×1668px
Page 1 / 2 (17 extracted figures)
Technical Specifications & Part Details (AMS1117-3.3)
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)Detailed Overview:AMS1117-3.3 (SOT-223) is a 4-pin low-dropout linear voltage regulator (ldo) featuring a 6.50 × 3.50 × 1.80 mm mechanical envelope (lead pitch e = 2.29 mm). Rated for 5V to 3.3V supply operation across -40°C to 125°C with integrated Standard I/O / Passive interfaces.
Operating Supply VoltageV_CC / V_DD
5V to 3.3V
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C to 125°C
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
10kHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
1A
Observe per-pin absolute maximum current limits
Package Envelope (D × E × A)D × E × A
6.50 × 3.50 × 1.80 mm (A1=0.00 mm)
Package family: SOT223 (SOT-223)
Pin Count & Lead PitchN / e
4 Pins | Pitch e = 2.29 mm (90.2 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
Standard I/O / Passive
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Verify Pin-1 chamfer orientation on Top Silkscreen prior to SMT pick-and-place assembly.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.
5-Point Standards Verification
Automated compliance checks prior to exportIEEE-315 Symbol4 auto-grouped pins
IPC-7351B Land Pattern4 pads · Pitch 2.29mm
IPC-7525 60% Solder PasteReflow 1:1 Standard
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
Hardware Verification & Community Engineering Reviews
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet5.00 PCB Verified
IPC-7351B
Select package variant or sibling MPN sharing this datasheetFamily Variants & Same Datasheet Chips — AMS1117 (2)
SOT-223 · 4P
4P6.5×3.5×1.80mmP=2.29mm
AMS1117 (SOT-223)
Mechanical Dimensions & Land Pattern (SOT-223)
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
6.50 × 3.50 mm
Height (A) & Pitch (e)IPC-7351B
A=1.80mm · e=2.29mm
Pad Size (W × L)Level B
0.79 × 2.00 mm
Pins / Total PadsTopology
4P / 4Pad (SOT_TAB)
Recommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| C_in BOM | 10µF 25V X5R/Tantalum + 100nF 0805 + 0603 | Input voltage bypass capacitor on VIN (Pin 3) — place < 2mm from Pin 3 and Pin 1 (GND). |
| C_out BOM | 22µF Tantalum (or 22µF MLCC + R_esr 0.2Ω) CASE-A (1206) | Output compensation cap on VOUT (Pin 2 & Tab 4) — classic AMS1117 requires 0.15Ω~1.5Ω ESR (Tantalum) for loop stability. |
| LM1117MPX-3.3 Texas Instruments | 100% Drop-in | 100% Drop-in SOT-223 equivalent (verify output capacitor ESR compatibility). |
| NCP1117ST33T3G onsemi | 100% Drop-in | 100% Drop-in SOT-223 equivalent (verify output capacitor ESR compatibility). |
| AZ1117CH-3.3TRG1 Diodes Inc. | 100% Drop-in SOT-223 | 100% Drop-in SOT-223 equivalent (verify output capacitor ESR compatibility). |
Technical Frequently Asked Questions (FAQ) — AMS1117-3.3 (SOT-223)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of AMS1117-3.3 (SOT-223)?
Manufactured by Advanced Monolithic Systems, the AMS1117-3.3 is housed in a SOT-223 package with 4 pins and a 2.29 mm lead pitch, supporting a VCC supply range of 5V to 3.3V. Key pins include: 1 (GND/ADJ: Ground Reference Pin (GND/ADJ)), 2 (VOUT: Regulated Power Output (VOUT — VIN up to 15V -> Regulated 3.3V VOUT)), 3 (VIN: Power Supply Input (VIN — VIN up to 15V -> Regulated 3.3V VOUT)), 4 (VOUT_TAB: Regulated Power Output (VOUT_TAB — VIN up to 15V -> Regulated 3.3V VOUT)).
What are the IPC-7351B PCB Footprint dimensions for AMS1117-3.3?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), AMS1117-3.3 (SOT-223) has a nominal body envelope of 3.50 × 6.50 mm, pitch e = 2.29 mm, and 4 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for AMS1117-3.3?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for AMS1117-3.3 (Advanced Monolithic Systems, SOT-223) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (4 pins) & AMS1117 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | GND/ADJ | GND | 0V electrical ground return terminal (GND/ADJ) for internal core logic, I/O drivers, and analog sub-blocks. |
| 2 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the VIN up to 15V -> Regulated 3.3V VOUT domain (Max rating: 3.6V). |
| 3 | VIN | Power_In | Primary positive power supply input (VIN) operating in the VIN up to 15V -> Regulated 3.3V VOUT domain (Max rating: 15.0V). |
| 4 | VOUT_TAB | Power_Out | Regulated power output rail (VOUT_TAB) operating in the VIN up to 15V -> Regulated 3.3V VOUT domain (Max rating: 3.6V). |