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LM2576SX-ADJ-JSM
Public Made by Adomby adom
JSMSEMI DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM2576SX-ADJ-JSM
JSMSEMI · DC-DC Converters · TO-263-5
LM2576SX-ADJ-JSM from JSMSEMI, in a TO-263-5. 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 | VIN | power_in | Unregulated input supply pin; datasheet rates input voltage at 45 V absolute maximum and 4V to 40V operating range. |
| 2 | OUTPUT | output | Switch output pin of the regulator; steady-state output voltage to common is limited to -1 V minimum. |
| 3 | COMMON | power_in | Common/ground pin; the tab is also connected to COMMON. |
| 4 | FEEDBACK | input | Feedback sense input; the ADJ version regulates this pin to 1.230 V typical with Vo = 1.23(1+R1/R2). |
| 5 | ON/OFF | input | Active-low on/off control input; logic low (0 V) enables the regulator and 5 V puts it in standby, with input range -0.3 V to VIN. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
LM2576SX-ADJ-JSM - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2576sx-adj-jsm-etched.step/lm2576sx-adj-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2576sx-adj-jsm.step/lm2576sx-adj-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (12 pp, sha256
f4e598e0081d5190, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-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).
# LM2576SX-ADJ-JSM
**JSMSEMI** · DC-DC Converters · TO-263-5
LM2576SX-ADJ-JSM from JSMSEMI, in a TO-263-5. 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 | VIN | power_in | Unregulated input supply pin; datasheet rates input voltage at 45 V absolute maximum and 4V to 40V operating range. |
| 2 | OUTPUT | output | Switch output pin of the regulator; steady-state output voltage to common is limited to -1 V minimum. |
| 3 | COMMON | power_in | Common/ground pin; the tab is also connected to COMMON. |
| 4 | FEEDBACK | input | Feedback sense input; the ADJ version regulates this pin to 1.230 V typical with Vo = 1.23(1+R1/R2). |
| 5 | ON/OFF | input | Active-low on/off control input; logic low (0 V) enables the regulator and 5 V puts it in standby, with input range -0.3 V to VIN. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
## CAD (KiCad official)
- Symbol: `LM2576SX-ADJ-JSM`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm2576sx-adj-jsm-etched.step` / `lm2576sx-adj-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2576sx-adj-jsm.step` / `lm2576sx-adj-jsm.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](docs/lm2576sx-adj-jsm-datasheet.pdf) (12 pp, sha256 `f4e598e0081d5190`, retrieved 2026-10-29, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm2576sx-adj-jsm-datasheet.pdf)