component
XH2596-12
Public Made by Adomby adom
XINLUDA DC-DC Converters, TO-263-5. 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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Contents
README
markdownXH2596-12
XINLUDA · DC-DC Converters · TO-263-5
XH2596-12 from XINLUDA, 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 | Positive input supply, 4.5V to 40V operating (45V absolute max), which needs a low-ESR bypass capacitor placed close to the pin. |
| 2 | Output | output | Internal switch output that swings between (+VIN − VSAT) and about −0.5V at a duty cycle of about VOUT/VIN, with 3A rated load current; keep the PCB copper area on this pin to a minimum. |
| 3 | Ground | power_in | Circuit ground. |
| 4 | Feedback | input | Senses the regulated output voltage (12V for this fixed version) to close the feedback loop, with a pin voltage range of −0.3V to +25V. |
| 5 | ON/OFF | input | Shutdown input: below about 1.3V the regulator is on and above 1.3V (up to 25V max) it is off, with about 80 µA standby current, and it can be grounded or left open if shutdown is not needed. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | TO-263-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Supply Voltage | 45 | V | 3 | ||||
| ON/OFF Pin Input Voltage | -0.3 | 25 | V | 3 | |||
| Feedback Pin Voltage | -0.3 | 25 | V | 3 | |||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Lead Temperature, Vapor Phase | 215 | °C | Vapor Phase (60 sec.) | 3 | |||
| Lead Temperature, Infrared | 245 | °C | Infrared (10 sec.) | 3 | |||
| Maximum Junction Temperature | 150 | °C | 3 | ||||
| Operating Temperature Range (TJ) | TJ | -40 | 125 | °C | 3 | ||
| Supply Voltage | 4.5 | 40 | V | 3 | |||
| Output Voltage (12V version) | VOUT | 11.4 | 12 | 12.6 | V | 15V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A | 3 |
| Oscillator Frequency | fO | 110 | 150 | 173 | kHz | Note 6 | 4 |
| Saturation Voltage | VSAT | 1.16 | 1.5 | V | IOUT = 3A (Notes 7, 8) | 4 | |
| Current Limit Peak Current | ICL | 3.4 | 4.5 | 7.5 | A | Peak Current (Notes 7, 8) | 4 |
| Output Leakage Current | IL | 50 | µA | Output = 0V (Notes 7, 9) | 4 | ||
| Output Leakage Current (Output = -1V) | IL | 2 | 30 | mA | Output = −1V (Note 10) | 4 | |
| Quiescent Current | IQ | 5 | 10 | mA | Note 9 | 4 | |
| Standby Quiescent Current | ISTBY | 80 | 250 | µA | ON/OFF pin = 5V (OFF) (Note 10) | 4 | |
| ON/OFF Pin Input Current (Regulator OFF) | IH | 5 | 15 | µA | VLOGIC = 2.5V (Regulator OFF) | 5 | |
| ON/OFF Pin Input Current (Regulator ON) | IL | 0.02 | 5 | µA | VLOGIC = 0.5V (Regulator ON) | 5 | |
| ON/OFF Pin Logic Input Threshold Voltage, Low | VIL | 1.3 | 0.6 | V | Low (Regulator ON) | 4 | |
| ON/OFF Pin Logic Input Threshold Voltage, High | VIH | 2 | V | High (Regulator OFF) | 4 | ||
| Thermal Resistance, Junction to Case | JC | 2 | °C/W | TO-263 Package, Junction to Case | 4 | ||
| Thermal Resistance, Junction to Ambient (0.5 in² copper) | JA | 50 | °C/W | TO-263 Package, Junction to Ambient (Note 11) | 4 | ||
| Thermal Resistance, Junction to Ambient (2.5 in² copper) | JA | 30 | °C/W | TO-263 Package, Junction to Ambient (Note 12) | 4 | ||
| Thermal Resistance, Junction to Ambient (double-sided board) | JA | 20 | °C/W | TO-263 Package, Junction to Ambient (Note 13) | 4 |
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 | capacitor leads and short copper traces. Do not | 10 |
CAD (KiCad official)
- Symbol:
XH2596-12 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
xh2596-12-etched.step/xh2596-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xh2596-12.step/xh2596-12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XINLUDA datasheet (33 pp, sha256
dd90bdf5e1a1469c, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).