component
LD1086BV-DG
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. 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
markdownLD1086BV-DG
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220
LD1086BV-DG from STMicroelectronics, in a TO-220. 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 | passive | Adjust terminal that sets the output voltage of the adjustable LD1086B; the datasheet gives an adjust pin current of 40 µA typical and 120 µA maximum at VI = 4.25 V and IO = 10 mA. |
| 2 | OUTPUT | power_out | Regulated output of the LD1086, rated up to 1.5 A, with the TAB physically connected to this output node. |
| 3 | IN | power_in | Unregulated input supply to the regulator, with a DC input voltage absolute maximum of 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| 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 | Vref | 1.231 | 1.25 | 1.269 | V | IO = 10 mA, TJ = 25 °C | 13 |
| Reference voltage | Vref | 1.219 | 1.25 | 1.281 | V | IO = 10 mA to 1.5 A, VI = 2.85 to 30 V | 13 |
| Line regulation | ΔVO | 0.015 | 0.2 | % | IO = 10 mA, VI = 2.8 to 16.5 V, TJ = 25 °C | 13 | |
| Line regulation | ΔVO | 0.035 | 0.2 | % | IO = 10 mA, VI = 2.8 to 16.5 V | 13 | |
| Load regulation | ΔVO | 0.1 | 0.3 | % | IO = 10 mA to 1.5 A, TJ = 25 °C | 13 | |
| Load regulation | ΔVO | 0.2 | 0.4 | % | IO = 0 to 1.5 A | 13 | |
| Dropout voltage | Vd | 1.3 | 1.5 | V | IO = 1.5 A | 13 | |
| Minimum load current | IO(min) | 3 | 10 | mA | VI = 30 V | 13 | |
| Short-circuit current | Isc | 1.5 | 2.3 | A | VI - VO = 5 V | 13 | |
| Short-circuit current | Isc | 0.05 | 0.2 | A | VI - VO = 25 V | 13 | |
| Thermal regulation | 0.01 | 0.04 | %/W | TA = 25 °C, 30 ms pulse | 13 | ||
| Supply voltage rejection | SVR | 60 | 88 | dB | f = 120 Hz, CO = 25 µF, CADJ = 25 µF, IO = 1.5 A, VI = 6.25 ± 3 V | 13 | |
| Adjust pin current | IADJ | 40 | 120 | µA | VI = 4.25 V, IO = 10 mA | 13 | |
| Adjust pin current change | ΔIADJ | 0.2 | 5 | µA | IO = 10 mA to 1.5 A, VI = 2.8 to 16.5 V | 13 | |
| Input voltage (DC) | VI | 30 | V | 7 | |||
| Storage temperature range | TSTG | -55 | 150 | °C | 7 | ||
| Junction temperature range | TJ | -40 | 150 | °C | 7 | ||
| Thermal resistance junction-case (TO-220) | RthJC | 5 | °C/W | TO-220 package | 7 | ||
| Thermal resistance junction-ambient (TO-220) | RthJA | 50 | °C/W | TO-220 package | 7 | ||
| Operating temperature range | -40 | 125 | °C | Wide operating temperature range (features list) | 1 |
CAD (KiCad official)
- Symbol:
LD1086BV-DG - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
ld1086bv-dg-etched.step/ld1086bv-dg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ld1086bv-dg.step/ld1086bv-dg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (40 pp, sha256
bed15f446d51200c, retrieved 2026-10-11, 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).