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LM1117GS-3.3
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HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), SOT-223-3L. 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
markdownLM1117GS-3.3
HTC Korea TAEJIN Tech · Linear Voltage Regulators (LDO) · SOT-223-3L
LM1117GS-3.3 from HTC Korea TAEJIN Tech, in a SOT-223-3L. 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 | power_in | Adjustable/Ground pin: it is the ground reference on the fixed-output versions, and on the ADJ version it is the adjust terminal with an adjustment pin current of 50 uA typical and 120 uA maximum at IO = 100 mA. |
| 2 | VOUT | power_out | Output voltage pin: on the 3.3V version it is specified at 3.267 V to 3.333 V (VIN = 4.8V, IO = 10 mA) and 3.234 V to 3.366 V over IO = 0 to 1 A and TJ = 0 to 125 C, with a current limit of 1000 mA and a dropout of 1.2 V at 1 A. |
| 3 | VIN | power_in | Input voltage pin: the absolute maximum input supply voltage is 20 V, and the operating input voltage is stated as 12 V for the 3.3V version. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOT-223-3L |
| Category | Power Management ICs |
| 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 | VO | 3.267 | 3.3 | 3.333 | V | VIN = 4.8V, IO = 10mA | 7 |
| Output Voltage | VO | 3.234 | 3.366 | V | VIN = 4.8V to 12V, IO = 0mA to 1A, TJ = 0 ~ 125℃ | 7 | |
| Line Regulation | ΔVLINE | 0.1 | 0.2 | % | IO = 10mA, VIN = 4.8V to 12V | 7 | |
| Load Regulation | ΔVLOAD | 0.2 | 0.4 | % | IO = 10mA to 1A, VIN = 5.3V | 7 | |
| Operating Input Voltage | VIN | 12 | V | 7 | |||
| Quiescent Current | ID | 5 | 10 | mA | VIN - VO = 5V | 7 | |
| Current Limit | IO | 1000 | mA | VIN - VO = 5V | 7 | ||
| Output Noise | EN | 100 | uV | B = 10Hz to 10kHz, TJ = 25℃ | 7 | ||
| Supply Voltage Rejection | SVR | 60 | 75 | dB | IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP | 7 | |
| Dropout Voltage | VD | 1 | 1.1 | V | IO = 100mA | 8 | |
| Dropout Voltage | VD | 1.1 | 1.2 | V | IO = 500mA | 8 | |
| Dropout Voltage | VD | 1.2 | 1.3 | V | IO = 1A | 8 | |
| Temperature Stability | 0.5 | % | 8 | ||||
| Long Term Stability | 0.3 | % | 1000 hrs, TJ = 125℃ | 8 | |||
| Thermal Regulation | 0.003 | %/W | TA = 25℃, 30ms Pulse | 8 | |||
| Input Supply Voltage | VIN | 20 | V | 1 | |||
| Lead Temperature | TSOL | 260 | ℃ | 1 | |||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 1 | ||
| Operating Junction Temperature Range | TOPR | -40 | 125 | ℃ | 1 | ||
| Thermal Resistance Junction-To-Ambient (SOT-223) | θJA-SOT-223 | 137 | °C/W | No heat sink, no air flow, no adjacent heat source, TA = 25°C | 12 |
CAD (KiCad official)
- Symbol:
LM1117GS-3.3 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3L (KiCad packages3D, STEP)
- 3D model files:
lm1117gs-3-3-etched.step/lm1117gs-3-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm1117gs-3-3.step/lm1117gs-3-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (13 pp, sha256
c0037056f6203681, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).