component
AH1117CLTR25
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from 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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Contents
README
markdownAH1117CLTR25
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
AH1117CLTR25 from BL Shanghai Belling, in a SOT-223. 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 / reference pin. On fixed-voltage versions (including the -2.5V AH1117CLTR25) this pin is the device ground return. On the -ADJ variant this same pin is the ADJ feedback node (1.25V reference). |
| 2 | VOUT | power_out | Regulated output voltage. For the AH1117CLTR25 variant this pin delivers a fixed 2.5V ±2% at up to 1A load current. Requires a 10uF tantalum output capacitor for stability. |
| 3 | VIN | power_in | Unregulated supply input. Recommended input range up to 12V (absolute max 15V). For the 2.5V variant, Vin must be at least Vout + dropout (~1.3V at 1A). A 10uF tantalum bypass capacitor is recommended. |
| TAB | VOUT | power_out | Thermal tab / heat-sink pad, electrically connected to VOUT (pin 2) on SOT-223. Solder to a copper pour on the PCB to lower thermal resistance (θJA ~20°C/W package alone). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-223 |
| Category | PMIC |
| Pins | 4 |
Ordering variants
Same part, different packaging or reel option.
AH1117CLTR25AH1117CLTR12AH1117CLTR15AH1117CLTR18AH1117CLTR33AH1117CLTR50AH1117CLTRADAH1117CLTR25COTR25AH1117CLTR25COTR12AH1117CLTR25COTR15AH1117CLTR25COTR18AH1117CLTR25COTR33AH1117CLTR25COTR50AH1117CLTR25COTRAD
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 (AH1117-2.5V) | Vout | 2.45 | 2.5 | 2.55 | V | 0≤Iout≤1A , Vin=4.5V | 3 |
| Line Regulation (AH1117-2.5V) | ΔVout | 0.1 | 0.2 | %/V | Iout=10mA, 4.0V≤Vin≤12V | 3 | |
| Load Regulation (AH1117-2.5V) | ΔVout | 10 | 30 | mV | Vin=4.0V, 10mA≤Iout≤1A | 3 | |
| Dropout Voltage | Vdrop | 1.23 | 1.3 | V | Iout=100mA | 4 | |
| Dropout Voltage | Vdrop | 1.3 | 1.5 | V | Iout=1A | 4 | |
| Quiescent Current (AH1117-2.5V) | Iq | 2 | 3.5 | mA | Vin =12V | 4 | |
| Temperature Coefficient (reference) | ΔV/ΔT | -100 | 100 | ppm | 4 | ||
| Input Voltage (max) | 15 | V | 2 | ||||
| Ambient Temperature | Ta | -40 | 85 | °C | 2 | ||
| Max Operating Junction Temperature | Tj | 150 | °C | 2 | |||
| Storage Temperature | Ts | -40 | 150 | °C | 2 | ||
| Lead Temperature | 260 | °C | 10S | 2 | |||
| Input Voltage Range | 12 | V | 2 | ||||
| Operating Junction Temperature | Tj | -20 | 125 | °C | 2 | ||
| Current Limit | Ilimit | 1 | A | Vin-Vout=2V, Tj=25°C | 4 | ||
| Thermal Resistance Junction-to-Case (SOT-223) | JC | 20 | °C/W | 4 | |||
| Package Thermal Resistance (SOT-223) | 20 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
AH1117CLTR25 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
ah1117cltr25-etched.step/ah1117cltr25-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ah1117cltr25.step/ah1117cltr25.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (8 pp, sha256
0d29c0ac9649066e, 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).