component
XL2596HVS-3.3E1
Public Made by Adomby adom
XLSEMI DC-DC Converters, TO-263-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
XL2596HVS-3.3E1
XLSEMI · DC-DC Converters · TO-263-5L
XL2596HVS-3.3E1 from XLSEMI, in a TO-263-5L. 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 | Power input pin for the DC 4.5V to 50V operating range, with an electrolytic capacitor required in parallel between VIN and GND to eliminate noise. |
| 2 | SW | output | Power switch output pin; SW is the switching node that delivers the output power. |
| 3 | GND | power_in | Ground pin. |
| 4 | FB | input | Feedback pin that senses the output voltage through an external resistor divider for regulation, with a 1.23V reference for the adjustable version. |
| 5 | EN | input | Enable pin, active low: low level turns the device on, high level shuts it down, and it is low when left floating. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | TO-263-5L |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 输出电压 (Output voltage, 3.3V version) | VOUT | 3.25 | 3.3 | 3.35 | V | VIN =12V, IOUT=0.5A | 4 |
| 工作电压 (Operating input voltage) | VIN | 4.5 | 50 | V | 5 | ||
| 关机电流 (Shutdown current) | IS | 46 | 100 | uA | VEN =2V | 5 | |
| 静态电源电流 (Quiescent supply current) | IQ | 1.3 | 2 | mA | 注 2 (3.3V版本: VFB=10V) | 5 | |
| 振荡频率 (Oscillator frequency) | FOSC | 135 | 150 | 165 | KHz | 5 | |
| 饱和压降 (Saturation voltage) | VCE | 1.1 | 1.3 | V | VFB=0V, IOUT=2A | 5 | |
| 输入电压 (Absolute max input voltage) | VIN | -0.3 | 60 | V | 3 | ||
| 反馈引脚电压 (Absolute max feedback pin voltage) | VFB | -0.3 | 20 | V | 3 | ||
| 使能引脚电压 (Absolute max enable pin voltage) | VEN | -0.3 | 7 | V | 3 | ||
| 操作结温 (Operating junction temperature) | TJ | -40 | 150 | oC | 3 | ||
| 贮存温度范围 (Storage temperature) | TSTG | -65 | 150 | oC | 3 | ||
| 引脚温度 (Lead temperature, soldering) | TLEAD | 260 | oC | 焊接10秒 | 3 | ||
| ESD (HBM) | ESD (HBM) | 8000 | V | datasheet prints >8000 V | 3 | ||
| 环境工作温度范围 (Ambient operating temperature, grade 1) | -40 | 125 | ℃ | 温度等级1级 (feature list) | 1 | ||
| 开关电流限值 (Switch current limit) | IL | 3.2 | A | VFB =0V | 5 | ||
| EN 引脚高电平阈值 (EN high threshold, shutdown) | VEN_H | 1.4 | V | 高电平（关断） | 5 | ||
| EN 引脚低电平阈值 (EN low threshold, on) | VEN_L | 0.8 | V | 低电平（开启） | 5 | ||
| EN 引脚电流 (EN pin current) | IEN | 5 | uA | VEN =2.5V | 5 | ||
| 最大占空比 (Maximum duty cycle) | DMAX | 100 | % | VFB=0V | 5 | ||
| 热关断温度 (Thermal shutdown temperature) | TSD | 180 | ℃ | 5 | |||
| 热关断迟滞 (Thermal shutdown hysteresis) | TD | 40 | ℃ | 5 | |||
| 热阻 结到环境 (Thermal resistance, junction to ambient, TO263-5L) | RJA | 30 | oC /W | 结到环境，无外部散热片 | 3 |
CAD (KiCad official)
- Symbol:
XL2596HVS-3.3E1 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5L (KiCad packages3D, STEP)
- 3D model files:
xl2596hvs-3-3e1-etched.step/xl2596hvs-3-3e1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl2596hvs-3-3e1.step/xl2596hvs-3-3e1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI datasheet (17 pp, sha256
10bfc4dd705b0c69, retrieved 2026-10-21, tier: manufacturer) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).
# XL2596HVS-3.3E1
**XLSEMI** · DC-DC Converters · TO-263-5L
XL2596HVS-3.3E1 from XLSEMI, in a TO-263-5L. 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 | Power input pin for the DC 4.5V to 50V operating range, with an electrolytic capacitor required in parallel between VIN and GND to eliminate noise. |
| 2 | SW | output | Power switch output pin; SW is the switching node that delivers the output power. |
| 3 | GND | power_in | Ground pin. |
| 4 | FB | input | Feedback pin that senses the output voltage through an external resistor divider for regulation, with a 1.23V reference for the adjustable version. |
| 5 | EN | input | Enable pin, active low: low level turns the device on, high level shuts it down, and it is low when left floating. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | TO-263-5L |
| Category | Power Management (PMIC) |
| Pins | 6 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 输出电压 (Output voltage, 3.3V version) | VOUT | 3.25 | 3.3 | 3.35 | V | VIN =12V, IOUT=0.5A | 4 |
| 工作电压 (Operating input voltage) | VIN | 4.5 | | 50 | V | | 5 |
| 关机电流 (Shutdown current) | IS | | 46 | 100 | uA | VEN =2V | 5 |
| 静态电源电流 (Quiescent supply current) | IQ | | 1.3 | 2 | mA | 注 2 (3.3V版本: VFB=10V) | 5 |
| 振荡频率 (Oscillator frequency) | FOSC | 135 | 150 | 165 | KHz | | 5 |
| 饱和压降 (Saturation voltage) | VCE | | 1.1 | 1.3 | V | VFB=0V, IOUT=2A | 5 |
| 输入电压 (Absolute max input voltage) | VIN | -0.3 | | 60 | V | | 3 |
| 反馈引脚电压 (Absolute max feedback pin voltage) | VFB | -0.3 | | 20 | V | | 3 |
| 使能引脚电压 (Absolute max enable pin voltage) | VEN | -0.3 | | 7 | V | | 3 |
| 操作结温 (Operating junction temperature) | TJ | -40 | | 150 | oC | | 3 |
| 贮存温度范围 (Storage temperature) | TSTG | -65 | | 150 | oC | | 3 |
| 引脚温度 (Lead temperature, soldering) | TLEAD | | | 260 | oC | 焊接10秒 | 3 |
| ESD (HBM) | ESD (HBM) | 8000 | | | V | datasheet prints >8000 V | 3 |
| 环境工作温度范围 (Ambient operating temperature, grade 1) | | -40 | | 125 | ℃ | 温度等级1级 (feature list) | 1 |
| 开关电流限值 (Switch current limit) | IL | | 3.2 | | A | VFB =0V | 5 |
| EN 引脚高电平阈值 (EN high threshold, shutdown) | VEN_H | | 1.4 | | V | 高电平（关断） | 5 |
| EN 引脚低电平阈值 (EN low threshold, on) | VEN_L | | 0.8 | | V | 低电平（开启） | 5 |
| EN 引脚电流 (EN pin current) | IEN | | 5 | | uA | VEN =2.5V | 5 |
| 最大占空比 (Maximum duty cycle) | DMAX | | 100 | | % | VFB=0V | 5 |
| 热关断温度 (Thermal shutdown temperature) | TSD | | 180 | | ℃ | | 5 |
| 热关断迟滞 (Thermal shutdown hysteresis) | TD | | 40 | | ℃ | | 5 |
| 热阻 结到环境 (Thermal resistance, junction to ambient, TO263-5L) | RJA | | 30 | | oC /W | 结到环境，无外部散热片 | 3 |
## CAD (KiCad official)
- Symbol: `XL2596HVS-3.3E1`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5L (KiCad packages3D, STEP)
- 3D model files: `xl2596hvs-3-3e1-etched.step` / `xl2596hvs-3-3e1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl2596hvs-3-3e1.step` / `xl2596hvs-3-3e1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [XLSEMI datasheet](docs/xl2596hvs-3-3e1-datasheet.pdf) (17 pp, sha256 `10bfc4dd705b0c69`, retrieved 2026-10-21, tier: manufacturer)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/xl2596hvs-3-3e1-datasheet.pdf)