component
LM1117RS-ADJ
Public Made by Adomby adom
HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). 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
markdownLM1117RS-ADJ
HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
LM1117RS-ADJ from HTC Korea TAEJIN Tech, in a TO-252-2(DPAK). 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 | Adjustment/ground pin: in the ADJ version it sets the output voltage through the external divider (adjustment pin current 50 µA typ., 120 µA max. at IO = 100 mA), and it is the ground reference for the fixed-voltage versions. |
| 2 | VOUT | power_out | Regulated output voltage; an output capacitor of 10 µF or larger is needed for LM1117 output stability. |
| 3 | VIN | power_in | Input voltage; DC input voltage absolute maximum is 20 V and the operating input voltage is specified up to 12 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | TO-252-2(DPAK) |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (ADJ) | VREF | 1.238 | 1.25 | 1.262 | V | VIN=5V, IO=10mA | 5 |
| Reference Voltage over load and line (ADJ) | VREF | 1.219 | 1.281 | V | IO=10mA to 1A, VIN-VREF=1.5V to 13.75V, TJ=0~125C | 5 | |
| Line Regulation (ADJ) | ΔVLINE | 0.1 | 0.2 | % | IO=10mA, VIN-VREF=1.5V to 12V | 5 | |
| Load Regulation (ADJ) | ΔVLOAD | 0.2 | 0.4 | % | IO=10mA to 1A, VIN-VREF=2V | 5 | |
| Operating Input Voltage (ADJ) | VIN | 12 | V | 5 | |||
| Adjustment pin Current (ADJ) | IADJ | 50 | 120 | uA | VIN-VREF=1.5V to 12V, IO=100mA | 5 | |
| Adjustment Pin Current Change (ADJ) | ΔIADJ | 0.5 | 5 | uA | VIN-VREF=1.5V to 12V, IO=100mA to 1A | 5 | |
| Minimum Load Current (ADJ) | IO(MIN) | 5 | 10 | mA | VIN=5V, VREF=0V | 5 | |
| Current Limit (ADJ) | IO | 1000 | 1250 | 1600 | mA | VIN-VREF=5V | 5 |
| Supply Voltage Rejection (ADJ) | SVR | 60 | 75 | dB | IO=1A, f=120Hz, VIN-VREF=3V, VRIPPLE=1VPP | 5 | |
| Dropout Voltage | VD | 1 | 1.1 | V | IO=100mA | 9 | |
| Dropout Voltage | VD | 1.1 | 1.2 | V | IO=500mA | 9 | |
| Dropout Voltage | VD | 1.2 | 1.3 | V | IO=1A | 9 | |
| DC Input Voltage | VIN | 20 | V | 1 | |||
| Lead Temperature (Soldering, 5 seconds) | TSOL | 260 | ℃ | 5 seconds soldering | 1 | ||
| Operating Junction Temperature Range | TOPR | -40 | 125 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction-To-Ambient / TO-252 | θJA-TO-252 | 105 | °C/W | No heat sink, no air flow, no adjacent heat source, 0.066 inch2 copper area, TA=25°C | 12 |
CAD (KiCad official)
- Symbol:
LM1117RS-ADJ - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
- 3D model files:
lm1117rs-adj-etched.step/lm1117rs-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm1117rs-adj.step/lm1117rs-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256
44a7a7aa0771cacd, retrieved 2026-10-17, 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).