component
AZ1117IH-3.3TRG1
Public Made by Adomby adom
Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout settled in review by an AI reviewer against the manufacturer's 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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Contents
README
markdownAZ1117IH-3.3TRG1
Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
AZ1117IH-3.3TRG1 from Diodes Incorporated, in a SOT-223. 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 | ADJ/GND | input | Ground reference for the regulator. On fixed-voltage AZ1117I versions (including the -3.3 variant) the ADJ pin is internally tied to the fixed feedback divider, so pin 1 functions as the device ground return. |
| 2 | OUTPUT | power_out | Regulated 3.3V output (1.176-1.224V… - for -3.3 variant: nominal 3.3V, ±1% accuracy over line/load). Requires a minimum 10µF output capacitor with ESR < 20Ω (low-ESR ceramic compatible). Pin 2 is internally connected to the SOT-223 tab. |
| 3 | INPUT | power_in | Unregulated input supply. Recommended VIN ≤ 15V (absolute max 18V). Requires VIN ≥ VOUT + VDROP (typ. 1.2V @ 0.8A for SOT223) for regulation. A 10µF bypass capacitor is recommended near this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-223 |
| Category | PMIC |
| Pins | 3 |
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 | VOUT | 3.267 | 3.3 | 3.333 | V | 1.5V ≤ VIN-VOUT ≤ 10V | 6 |
| Output Voltage (boldface, full junction range) | VOUT | 3.235 | 3.3 | 3.365 | V | 1.5V ≤ VIN-VOUT ≤ 10V; boldface, TJ -40°C to +125°C | 6 |
| Line Regulation | VRLINE | 0.5 | 6 | mV | 1.5V ≤ VIN-VOUT ≤ 10V | 6 | |
| Line Regulation (boldface, full junction range) | VRLINE | 10 | mV | 1.5V ≤ VIN-VOUT ≤ 10V; boldface, TJ -40°C to +125°C | 6 | ||
| Load Regulation | VRLOAD | 2 | 15 | mV | VIN = VOUT+2V, 1mA ≤ IOUT ≤ 1A | 6 | |
| Dropout Voltage (SOT223) | VDROP | 1.2 | 1.3 | V | ∆VOUT = 1%, IOUT = 0.8A | 6 | |
| Current Limit | ILIMIT | 1 | 1.35 | A | 6 | ||
| Quiescent Current | IQ | 4 | 6 | mA | IOUT = 0 | 6 | |
| Input Voltage (absolute maximum) | VIN | 18 | V | 3 | |||
| Operating Junction Temperature Range (absolute maximum) | TJ | 150 | °C | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature (soldering) | TLEAD | 260 | °C | Soldering, 10 sec | 3 | ||
| Input Voltage (recommended operating) | VIN | 15 | V | 3 | |||
| Operating Junction Temperature Range (recommended) | TJ | -40 | 125 | °C | 3 | ||
| Thermal Resistance Junction-to-Ambient, without heatsink (SOT223) | θJA | 125 | °C/W | Without heatsink | 3 | ||
| Thermal Resistance Junction-to-Ambient, with heatsink (SOT223) | θJA | 100 | °C/W | With heatsink, 100mm² copper on 2oz 2-layer FR-4 (Note 6) | 3 | ||
| Thermal Resistance Junction-to-Case (SOT223) | θJC | 15 | °C/W | Junction to case, SOT223 | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 Weight: | 16 |
CAD (KiCad official)
- Symbol:
AZ1117IH-3.3TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
az1117ih-3-3trg1-etched.step/az1117ih-3-3trg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);az1117ih-3-3trg1.step/az1117ih-3-3trg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (17 pp, sha256
48934059d42aa84f, retrieved 2026-11-13, tier: manufacturer) - 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).