component
MS1117S-3.3V
Public Made by Adomby adom
MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
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.
README
markdownMS1117S-3.3V
MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
MS1117S-3.3V from MSKSEMI, in a SOT-89. 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 | VSS/ADJ pin serves as the ground reference for the fixed versions and as the adjust pin for the adjustable version, where a bypass capacitor between ADJ and ground improves ripple rejection. |
| 2 | VOUT | power_out | Output voltage pin delivers up to 1A load current with a dropout of 1.3V typical and 1.5V maximum at 1A. |
| 3 | VIN | power_in | Input voltage pin has an absolute maximum input voltage of 18V, with a stated operating input voltage of 15V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-89 |
| 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 (MS1117-3.3V) | VOUT | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤1A, Vin=4.6V | 5 |
| Line regulation (MS1117-3.3V) | ΔVout Line | 9 | 49 | mV | Iout=10mA, 4.6V≤Vin≤12V | 5 | |
| Load regulation (MS1117-3.3) | ΔVout Load | 10 | 40 | mV | Vin =4.6V, 10mA≤Iout≤1A | 6 | |
| Dropout voltage | Vdrop | 1.15 | 1.3 | V | Iout =100mA | 6 | |
| Dropout voltage | Vdrop | 1.3 | 1.5 | V | Iout=1A | 6 | |
| Quiescent current (MS1117-3.3V) | Iq | 2 | 5 | mA | Vin=12V | 6 | |
| Temperature coefficient (VOUT=3.3V) | ΔVout | 30 | mV | Vin=4.5V, Iout=10mA, 20℃≤Ta≤120℃ | 6 | ||
| Input voltage | Vin | 15 | 18 | V | 5 | ||
| Max input voltage | 18 | V | 5 | ||||
| Max operating junction temperature | Tj | 150 | ℃ | 5 | |||
| Storage temperature | Ts | -55 | 150 | ℃ | 5 | ||
| Lead temperature | 260 | ℃ | 10S | 5 | |||
| Environment temperature | -40 | 85 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
MS1117S-3.3V - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
ms1117s-3-3v-etched.step/ms1117s-3-3v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ms1117s-3-3v.step/ms1117s-3-3v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (14 pp, sha256
1368aa3090fca90b, retrieved 2026-10-18, 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).