component
XL2594-ADJ
Public Made by Adomby adom
XINLUDA AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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XL2594-ADJ
XINLUDA · AC-DC Controllers And Regulators · SOP-8
XL2594-ADJ from XINLUDA, in a SOP-8. 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 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 2 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 3 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 4 | Feedback | input | Senses the regulated output voltage to complete the feedback loop; the feedback pin voltage is rated −0.3 V to 25 V. |
| 5 | ON/OFF | input | Logic-level shutdown input: pulling below about 1.3 V turns the regulator on, while pulling above 1.3 V (up to a maximum of 25 V) shuts it down, and leaving it open or tying it to ground keeps the regulator on. |
| 6 | Ground | power_in | Circuit ground for the IC. |
| 7 | +VIN | power_in | Positive input supply for the switching regulator, which needs a suitable input bypass capacitor close to this pin; the supply is rated up to 40 V (recommended 4.5 V to 40 V). |
| 8 | OUTPUT | output | Internal switch output that swings between (+VIN − VSAT) and about −0.5 V at a duty cycle of VOUT/VIN, and its PCB copper area should be kept to a minimum to limit coupling into sensitive circuitry. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (recommended operating) | VIN | 4.5 | 40 | V | XL2594 | 4 | |
| Temperature (recommended operating) | TA | -40 | 85 | °C | 4 | ||
| Supply voltage (absolute maximum) | VIN | 45 | V | XL2594 | 4 | ||
| ON/OFF pin input voltage | VON/OFF | -0.3 | 25 | V | 4 | ||
| Feedback pin voltage | VFB | -0.3 | 25 | V | 4 | ||
| Output voltage to ground (steady state) | VOUT | -1 | V | Steady state | 4 | ||
| Lead temperature, SOP8 vapor phase | 215 | °C | Vapor phase (60 s) | 4 | |||
| Lead temperature, SOP8 infrared | 220 | °C | Infrared (15 s) | 4 | |||
| Maximum junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD, human-body model (HBM) | V(ESD) | -2000 | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001 | 4 | |
| Junction-to-ambient thermal resistance (SOP) | RθJA | 150 | °C/W | 4 | |||
| Feedback voltage, TJ = 25°C | VFB | 1.193 | 1.23 | 1.267 | V | TJ = 25°C; 4.5 V ≤ VIN ≤ VINmax, 0.1 A ≤ ILOAD ≤ 0.5 A, VOUT programmed for 3 V, Circuit of Figure 9-13 | 6 |
| Feedback voltage, over full operating temperature range | VFB | 1.18 | 1.28 | V | Over full operating temperature range; 4.5 V ≤ VIN ≤ VINmax, 0.1 A ≤ ILOAD ≤ 0.5 A, VOUT programmed for 3 V, Circuit of Figure 9-13 | 6 | |
| Feedback bias current, TJ = 25°C | Ib | 10 | 50 | nA | Adjustable version only, VFB = 1.3 V; TJ = 25°C | 6 | |
| Feedback bias current, over full operating temperature range | Ib | 100 | nA | Adjustable version only, VFB = 1.3 V; over full operating temperature range | 6 | ||
| Oscillator frequency, TJ = 25°C | fO | 127 | 150 | 173 | kHz | TJ = 25°C; see footnote (3) | 6 |
| Oscillator frequency, over full operating temperature range | fO | 110 | 173 | kHz | Over full operating temperature range; see footnote (3) | 6 | |
| Saturation voltage, TJ = 25°C | VSAT | 0.9 | 1.1 | V | IOUT = 0.5 A; TJ = 25°C; see footnotes (4)(5) | 6 | |
| Saturation voltage, over full operating temperature range | VSAT | 1.2 | V | IOUT = 0.5 A; over full operating temperature range; see footnotes (4)(5) | 6 | ||
| Max duty cycle (ON) | DC | 100 | % | See footnote (5) | 6 | ||
| Min duty cycle (OFF) | DC | 0 | % | See footnote (6) | 6 | ||
| Current limit peak current, TJ = 25°C | ICL | 0.65 | 0.8 | 1.3 | A | TJ = 25°C; see footnotes (4)(5) | 6 |
| Current limit peak current, over full operating temperature range | ICL | 0.58 | 1.4 | A | Over full operating temperature range; see footnotes (4)(5) | 6 | |
| Output leakage current | IL | 50 | μA | Output = 0 V; see footnotes (4)(6)(7) | 6 | ||
| Output leakage current | IL | 2 | 15 | mA | Output = −1 V; see footnotes (4)(6)(7) | 6 | |
| Quiescent current | IQ | 5 | 10 | mA | See footnote (6) | 6 | |
| Standby quiescent current, TJ = 25°C | ISTBY | 200 | μA | ON/OFF pin = 5 V (OFF); TJ = 25°C; see footnote (7) | 6 | ||
| Standby quiescent current, over full operating temperature range | ISTBY | 250 | μA | ON/OFF pin = 5 V (OFF); over full operating temperature range; see footnote (7) | 6 | ||
| ON/OFF threshold voltage, regulator ON limit | VIH | 0.6 | V | Low (regulator ON); over full operating temperature range | 6 | ||
| ON/OFF threshold voltage, regulator OFF limit | VIL | 2 | V | High (regulator OFF); over full operating temperature range | 6 | ||
| ON/OFF pin input current, regulator OFF | IH | 5 | 15 | μA | VLOGIC = 2.5 V (regulator OFF) | 6 | |
| ON/OFF pin input current, regulator ON | IL | 0.02 | 5 | μA | VLOGIC = 0.5 V (regulator ON) | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | Internal switch. The voltage at this pin switches between (+VIN − VSAT) and approximately −0.5 V, with a duty cycle of VOUT/VIN. To minimize coupling to sensitive circuitry, the PCB copper area connec | 3 |
CAD (KiCad official)
- Symbol:
XL2594-ADJ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
xl2594-adj-etched.step/xl2594-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl2594-adj.step/xl2594-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XINLUDA datasheet (35 pp, sha256
ce822b70859dfe72, 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).
# XL2594-ADJ
**XINLUDA** · AC-DC Controllers And Regulators · SOP-8
XL2594-ADJ from XINLUDA, in a SOP-8. 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 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 2 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 3 | NC | unconnected | No connection; the datasheet lists pins 1, 2 and 3 as no-connect. |
| 4 | Feedback | input | Senses the regulated output voltage to complete the feedback loop; the feedback pin voltage is rated −0.3 V to 25 V. |
| 5 | ON/OFF | input | Logic-level shutdown input: pulling below about 1.3 V turns the regulator on, while pulling above 1.3 V (up to a maximum of 25 V) shuts it down, and leaving it open or tying it to ground keeps the regulator on. |
| 6 | Ground | power_in | Circuit ground for the IC. |
| 7 | +VIN | power_in | Positive input supply for the switching regulator, which needs a suitable input bypass capacitor close to this pin; the supply is rated up to 40 V (recommended 4.5 V to 40 V). |
| 8 | OUTPUT | output | Internal switch output that swings between (+VIN − VSAT) and about −0.5 V at a duty cycle of VOUT/VIN, and its PCB copper area should be kept to a minimum to limit coupling into sensitive circuitry. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (recommended operating) | VIN | 4.5 | | 40 | V | XL2594 | 4 |
| Temperature (recommended operating) | TA | -40 | | 85 | °C | | 4 |
| Supply voltage (absolute maximum) | VIN | | | 45 | V | XL2594 | 4 |
| ON/OFF pin input voltage | VON/OFF | -0.3 | | 25 | V | | 4 |
| Feedback pin voltage | VFB | -0.3 | | 25 | V | | 4 |
| Output voltage to ground (steady state) | VOUT | -1 | | | V | Steady state | 4 |
| Lead temperature, SOP8 vapor phase | | | | 215 | °C | Vapor phase (60 s) | 4 |
| Lead temperature, SOP8 infrared | | | | 220 | °C | Infrared (15 s) | 4 |
| Maximum junction temperature | TJ | | | 150 | °C | | 4 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 4 |
| ESD, human-body model (HBM) | V(ESD) | -2000 | | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001 | 4 |
| Junction-to-ambient thermal resistance (SOP) | RθJA | | 150 | | °C/W | | 4 |
| Feedback voltage, TJ = 25°C | VFB | 1.193 | 1.23 | 1.267 | V | TJ = 25°C; 4.5 V ≤ VIN ≤ VINmax, 0.1 A ≤ ILOAD ≤ 0.5 A, VOUT programmed for 3 V, Circuit of Figure 9-13 | 6 |
| Feedback voltage, over full operating temperature range | VFB | 1.18 | | 1.28 | V | Over full operating temperature range; 4.5 V ≤ VIN ≤ VINmax, 0.1 A ≤ ILOAD ≤ 0.5 A, VOUT programmed for 3 V, Circuit of Figure 9-13 | 6 |
| Feedback bias current, TJ = 25°C | Ib | | 10 | 50 | nA | Adjustable version only, VFB = 1.3 V; TJ = 25°C | 6 |
| Feedback bias current, over full operating temperature range | Ib | | | 100 | nA | Adjustable version only, VFB = 1.3 V; over full operating temperature range | 6 |
| Oscillator frequency, TJ = 25°C | fO | 127 | 150 | 173 | kHz | TJ = 25°C; see footnote (3) | 6 |
| Oscillator frequency, over full operating temperature range | fO | 110 | | 173 | kHz | Over full operating temperature range; see footnote (3) | 6 |
| Saturation voltage, TJ = 25°C | VSAT | | 0.9 | 1.1 | V | IOUT = 0.5 A; TJ = 25°C; see footnotes (4)(5) | 6 |
| Saturation voltage, over full operating temperature range | VSAT | | | 1.2 | V | IOUT = 0.5 A; over full operating temperature range; see footnotes (4)(5) | 6 |
| Max duty cycle (ON) | DC | | | 100 | % | See footnote (5) | 6 |
| Min duty cycle (OFF) | DC | 0 | | | % | See footnote (6) | 6 |
| Current limit peak current, TJ = 25°C | ICL | 0.65 | 0.8 | 1.3 | A | TJ = 25°C; see footnotes (4)(5) | 6 |
| Current limit peak current, over full operating temperature range | ICL | 0.58 | | 1.4 | A | Over full operating temperature range; see footnotes (4)(5) | 6 |
| Output leakage current | IL | | | 50 | μA | Output = 0 V; see footnotes (4)(6)(7) | 6 |
| Output leakage current | IL | | 2 | 15 | mA | Output = −1 V; see footnotes (4)(6)(7) | 6 |
| Quiescent current | IQ | | 5 | 10 | mA | See footnote (6) | 6 |
| Standby quiescent current, TJ = 25°C | ISTBY | | | 200 | μA | ON/OFF pin = 5 V (OFF); TJ = 25°C; see footnote (7) | 6 |
| Standby quiescent current, over full operating temperature range | ISTBY | | | 250 | μA | ON/OFF pin = 5 V (OFF); over full operating temperature range; see footnote (7) | 6 |
| ON/OFF threshold voltage, regulator ON limit | VIH | | | 0.6 | V | Low (regulator ON); over full operating temperature range | 6 |
| ON/OFF threshold voltage, regulator OFF limit | VIL | 2 | | | V | High (regulator OFF); over full operating temperature range | 6 |
| ON/OFF pin input current, regulator OFF | IH | | 5 | 15 | μA | VLOGIC = 2.5 V (regulator OFF) | 6 |
| ON/OFF pin input current, regulator ON | IL | | 0.02 | 5 | μA | VLOGIC = 0.5 V (regulator ON) | 6 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | | Internal switch. The voltage at this pin switches between (+VIN − VSAT) and approximately −0.5 V, with a duty cycle of VOUT/VIN. To minimize coupling to sensitive circuitry, the PCB copper area connec | 3 |
## CAD (KiCad official)
- Symbol: `XL2594-ADJ`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xl2594-adj-etched.step` / `xl2594-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl2594-adj.step` / `xl2594-adj.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [XINLUDA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588949866823225344) (35 pp, sha256 `ce822b70859dfe72`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/xl2594-adj-datasheet.pdf)