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AZ2185D-ADJTRG1
Public Made by Adomby adom
Diodes Incorporated Linear Voltage Regulators (LDO), TO-252. Pinout cross-checked by two models against the 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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README
markdownAZ2185D-ADJTRG1
Diodes Incorporated · Linear Voltage Regulators (LDO) · TO-252
AZ2185D-ADJTRG1 from Diodes Incorporated, in a TO-252. 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 | passive | Adjust pin/Ground; for the adjustable version, the output-voltage divider (R1/R2) is connected here, with typical adjust pin current of 6μA (10μA max). |
| 2 | OUTPUT | power_out | Regulated output voltage, up to 3A output current, with current limit of 4.5A typ; requires a minimum 10µF output capacitor with ESR below 0.4Ω. |
| 3 | INPUT | power_in | Input voltage pin, recommended maximum 12V (absolute maximum 18V), with a 10µF input capacitor shown in the typical application. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TO-252 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage | VREF | 1.238 | 1.25 | 1.262 | V | IOUT = 10mA, VIN-VOUT = 3V, TJ = +25°C | 4 |
| Reference Voltage (full range) | VREF | 1.225 | 1.25 | 1.275 | V | 10mA ≤ IOUT ≤ 3A, 1.5V ≤ VIN-VOUT ≤ 5V | 4 |
| Load Regulation | VRLOAD | 0.1 | 0.4 | %/A | 10mA ≤ IOUT ≤ 3A, VIN-VOUT = 3V | 4 | |
| Line Regulation | VRLINE | 0.015 | 0.2 | %/V | IOUT = 10mA, 2.85V ≤ VIN ≤ 10V | 4 | |
| Dropout Voltage | VDROP | 1.3 | 1.5 | V | IOUT = 3A, ΔVREF, ΔVOUT = 1% | 4 | |
| Current Limit | ILIMIT | 3.2 | 4.5 | 4.95 | A | VIN-VOUT = 3V | 4 |
| Minimum Load Current | ILOAD | 0.3 | 1 | mA | VIN = 10V | 4 | |
| Adjust Pin Current | IADJ | 6 | 10 | μA | VIN = 4.25V, IOUT = 10mA | 4 | |
| Adjust Pin Current Change | ΔIADJ | 0.3 | 2 | μA | 10mA ≤ IOUT ≤ 3A, 1.5V ≤ VIN-VOUT ≤ 6V | 4 | |
| Input Voltage (absolute maximum) | VIN | 18 | V | 3 | |||
| Operating Junction Temperature (absolute maximum) | TJ | 150 | °C | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature | TLEAD | 260 | °C | Soldering, 10sec | 3 | ||
| ESD (Human Body Model) | 5000 | V | 3 | ||||
| ESD (Charge Device Model) | 2000 | V | 3 | ||||
| Input Voltage (recommended) | VIN | 12 | V | 3 | |||
| Operating Junction Temperature (recommended) | TJ | -40 | 125 | °C | 3 | ||
| Thermal Resistance (Junction to Ambient) | θJA | 75 | °C/W | 3 | |||
| Thermal Resistance (Junction to Case) | θJC | 10 | °C/W | 4 | |||
| Ripple Rejection | PSRR | 50 | dB | fRIPPLE = 120Hz, COUT = 22μF, IOUT = 3A, VIN-VOUT = 3V | 4 | ||
| Long Term Stability | 0.5 | % | TA = +125°C, 1000Hrs | 4 | |||
| Temperature Stability | 50 | PPM% | IOUT = 10mA, VIN-VOUT = 1.5V | 4 | |||
| RMS Noise (% of VOUT) | 0.003 | % | TA = +125°C, 10Hz ≤ f ≤ 10kHz | 4 | |||
| Thermal shutdown (OTSD) | OTSD | 150 | °C | 4 | |||
| OTSD Hysteresis | 20 | °C | 4 |
CAD (KiCad official)
- Symbol:
AZ2185D-ADJTRG1 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
az2185d-adjtrg1-etched.step/az2185d-adjtrg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);az2185d-adjtrg1.step/az2185d-adjtrg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (9 pp, sha256
a61ea2e382d435b9, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).