AH1117CLTR33

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

AH1117CLTR33 from BL Shanghai Belling, in a SOT-223-3. 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	Vss/ADJ	power_in	Ground pin on fixed-voltage versions (adjustable pin on the ADJ version, which has a 1.25V reference and 55uA typical adjust current).
2	Vout	power_out	Regulated output voltage (3.3V ±2% for the AH1117CLTR33), up to 1A maximum output current.
3	Vin	power_in	Supply voltage input, 15V absolute maximum and 12V maximum recommended.

Key specifications

Parameter	Value
Manufacturer	BL Shanghai Belling
Package	SOT-223-3
Category	Power Management (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 (AH1117-3.3V)	Vout	3.234	3.3	3.366	V	0≤Iout≤1A, Vin=5.3V	3
Load regulation (AH1117-3.3V)	ΔVout		10	30	mV	Vin=4.8V, 10mA≤Iout≤1A	3
Line regulation (AH1117-3.3V)	ΔVout		0.1	0.2	%/V	Iout=10mA, 4.8V≤Vin≤12V	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 (AH1117-3.3V)	Iq		2	3.5	mA	AH1117-3.3V, Vin =12V	4
Temperature coefficient	ΔV/ΔT	-100		100	ppm		4
Current limit	Ilimit		1		A	Vin-Vout=2V, Tj=25°C	4
Thermal resistance junction-to-case, SOT-223	JC		20		°C/W	SOT-223	4
Max input voltage	Vin			15	V		2
Max operating junction temperature	Tj			150	°C		2
Ambient temperature	Ta	-40		85	°C		2
Storage temperature	Ts	-40		150	°C		2
Lead temperature				260	°C	10 s	2
Input voltage range	Vin			12	V		2
Operating junction temperature	Tj	-20		125	°C		2

CAD (KiCad official)

Symbol: AH1117CLTR33
Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
3D model: SOT-223-3 (KiCad packages3D, STEP)
3D model files: ah1117cltr33-etched.step / ah1117cltr33-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ah1117cltr33.step / ah1117cltr33.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: BL Shanghai Belling datasheet (8 pp, sha256 246bb1a886fe1d75, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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).

Datasheet PDF

# AH1117CLTR33

**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

AH1117CLTR33 from BL Shanghai Belling, in a SOT-223-3. 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 | Vss/ADJ | power_in | Ground pin on fixed-voltage versions (adjustable pin on the ADJ version, which has a 1.25V reference and 55uA typical adjust current). |
| 2 | Vout | power_out | Regulated output voltage (3.3V ±2% for the AH1117CLTR33), up to 1A maximum output current. |
| 3 | Vin | power_in | Supply voltage input, 15V absolute maximum and 12V maximum recommended. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-223-3 |
| Category | Power Management (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 (AH1117-3.3V) | Vout | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤1A, Vin=5.3V | 3 |
| Load regulation (AH1117-3.3V) | ΔVout |  | 10 | 30 | mV | Vin=4.8V, 10mA≤Iout≤1A | 3 |
| Line regulation (AH1117-3.3V) | ΔVout |  | 0.1 | 0.2 | %/V | Iout=10mA, 4.8V≤Vin≤12V | 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 (AH1117-3.3V) | Iq |  | 2 | 3.5 | mA | AH1117-3.3V, Vin =12V | 4 |
| Temperature coefficient | ΔV/ΔT | -100 |  | 100 | ppm |  | 4 |
| Current limit | Ilimit |  | 1 |  | A | Vin-Vout=2V, Tj=25°C | 4 |
| Thermal resistance junction-to-case, SOT-223 | JC |  | 20 |  | °C/W | SOT-223 | 4 |
| Max input voltage | Vin |  |  | 15 | V |  | 2 |
| Max operating junction temperature | Tj |  |  | 150 | °C |  | 2 |
| Ambient temperature | Ta | -40 |  | 85 | °C |  | 2 |
| Storage temperature | Ts | -40 |  | 150 | °C |  | 2 |
| Lead temperature |  |  |  | 260 | °C | 10 s | 2 |
| Input voltage range | Vin |  |  | 12 | V |  | 2 |
| Operating junction temperature | Tj | -20 |  | 125 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `AH1117CLTR33`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files: `ah1117cltr33-etched.step` / `ah1117cltr33-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ah1117cltr33.step` / `ah1117cltr33.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [BL Shanghai Belling datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757279018490179584) (8 pp, sha256 `246bb1a886fe1d75`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).

[Datasheet PDF](docs/ah1117cltr33-datasheet.pdf)