component
ap2112k-1-2trg1
Public Made by Adomby adom
Diodes Incorporated AP2112K 1 2TRG1 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownAP2112K-1.2TRG1
Diodes Incorporated AP2112K 1 2TRG1 · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25
AP2112K-1.2TRG1 from Diodes Incorporated AP2112K 1 2TRG1, in a SOT-25. 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 | VIN | power_in | Input supply voltage. Recommended operating range 2.5V to 6.0V (absolute max 6.5V). Bypass with a 1.0µF ceramic capacitor (X5R/X7R) to GND close to the pin. |
| 2 | GND | power_in | Device ground reference for the internal reference, error amplifier, and pass FET return current. |
| 3 | EN | input | Chip enable input. Drive high (VIH ≥ 1.5V, up to 6.0V) for normal operation; drive low (VIL ≤ 0.4V) to shut down the regulator. Internal ~3MΩ pull-down to GND; when EN is low, VOUT is discharged through an internal ~60Ω resistor. |
| 4 | NC | unconnected | No internal connection. Leave floating or tie to GND per board practice. |
| 5 | VOUT | power_out | Regulated 1.2V output (±1.5% accuracy) capable of 600mA (min). Requires a 1.0µF ceramic/tantalum/aluminum electrolytic capacitor to GND for stability. Foldback short-circuit protection limits current to ~50mA into a shorted output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated AP2112K 1 2TRG1 |
| Package | SOT-25 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
AP2112K-1.2TRG1AP2112K-1.2TRG1K-1.8TRG1AP2112K-1.2TRG1K-2.5TRG1AP2112K-1.2TRG1K-2.6TRG1AP2112K-1.2TRG1K-3.3TRG1AP2112K-1.2TRG1R5-1.2TRG1AP2112K-1.2TRG1R5-1.8TRG1AP2112K-1.2TRG1R5-2.5TRG1AP2112K-1.2TRG1R5-2.6TRG1AP2112K-1.2TRG1R5-3.3TRG1AP2112K-1.2TRG1R5A-1.2TRG1AP2112K-1.2TRG1R5A-1.8TRG1AP2112K-1.2TRG1R5A-2.5TRG1AP2112K-1.2TRG1R5A-2.6TRG1AP2112K-1.2TRG1R5A-3.3TRG1AP2112K-1.2TRG1M-1.2TRG1AP2112K-1.2TRG1M-1.8TRG1AP2112K-1.2TRG1M-2.5TRG1AP2112K-1.2TRG1M-2.6TRG1AP2112K-1.2TRG1M-3.3TRG1
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply Voltage | VCC | 6.5 | V | 3 | |||
| Operating Junction Temperature Range | TJ | 150 | °C | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature (Soldering) | TLEAD | 260 | °C | Soldering, 10 seconds | 3 | ||
| ESD (Machine Model) | 400 | V | 3 | ||||
| ESD (Human Body Model) | 4000 | V | 3 | ||||
| Supply Voltage | VIN | 2.5 | 6 | V | 3 | ||
| Ambient Operation Temperature Range | TA | -40 | 85 | °C | 3 | ||
| Maximum Output Current | IOUT(MAX) | 600 | mA | VIN = 2.5V, VOUT = 1.182V to 1.218V | 4 | ||
| Load Regulation | (∆VOUT/VOUT)/∆IOUT | -1 | 0.2 | 1 | %/A | VIN = 2.5V, 1mA ≤ IOUT ≤ 600mA | 4 |
| Line Regulation | (∆VOUT/VOUT)/∆VIN | -0.1 | 0.02 | 0.1 | %/V | 2.5V ≤ VIN ≤ 6V, IOUT = 30mA | 4 |
| Dropout Voltage | VDROP | 1000 | 1300 | mV | IOUT = 10mA | 4 | |
| Quiescent Current | IQ | 55 | 80 | µA | VIN = 2.5V, IOUT = 0mA | 4 | |
| Standby Current | ISTD | 0.01 | 1 | µA | VIN = 2.5V, VEN in OFF mode | 4 | |
| Output Voltage Temperature Coefficient (printed ±100 in Typ column) | (∆VOUT/VOUT)/∆T | -100 | 100 | ppm/°C | IOUT = 30mA, TA = -40°C to +85°C | 4 | |
| VEN High Voltage | VIH | 1.5 | 6 | V | Enable logic high, regulator on | 4 | |
| VEN Low Voltage | VIL | 0 | 0.4 | V | Enable logic low, regulator off | 4 | |
| EN Pull Down Resistor | RPD | 3 | MΩ | 4 | |||
| Thermal Shutdown Temperature | TOTSD | 160 | °C | 4 | |||
| Thermal Shutdown Hysteresis | THYOTSD | 25 | °C | 4 | |||
| Thermal Resistance (Junction to Ambient), SOT25 | θJA | 184 | °C/W | No heatsink | 3 | ||
| Output Voltage | VOUT | 1.2 | V | VIN = 2.5V, 1mA ≤ IOUT ≤ 30mA | 4 | ||
| Thermal Resistance (Junction to Case), SOT25 | θJC | 96 | °C/W | Junction to case, SOT25 | 4 |
CAD (KiCad official)
- Symbol:
AP2112K-1.2TRG1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25 (KiCad packages3D, STEP)
- 3D model files:
ap2112k-1-2trg1-etched.step/ap2112k-1-2trg1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap2112k-1-2trg1.step/ap2112k-1-2trg1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated AP2112K 1 2TRG1 datasheet (None pp, sha256
ef8d376f2ec356e2, retrieved 2026-08-17, 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).
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.