component
TX4220
Public Made by Adomby adom
XDS DC-DC Converters, ESOP-8. 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
markdownTX4220
XDS · DC-DC Converters · ESOP-8
TX4220 from XDS, in a ESOP-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 | SW | output | Internal MOSFET drain and switch node, rated 100 V absolute maximum with BVDS of 100 V and RON of 100 mΩ; the exposed thermal pad is also connected to this pin. |
| 2 | VDD | power_in | Chip supply input with an operating range of 5 V to 36 V, undervoltage lockout at 4.8 V on rising VDD, and an absolute maximum of 45 V. |
| 3 | EN | input | Active-high enable input that requires at least 3.2 V for high and at most 0.8 V for low, with an absolute maximum of 45 V. |
| 4 | ROSC | passive | Frequency-setting pin where an external resistor sets the switching frequency, 100 kHz to 330 kHz recommended, about 450 kHz when tied to GND, with an absolute maximum of 6.5 V. |
| 5 | VFB | input | Output voltage feedback input that regulates to 1 V (975 mV to 1025 mV), with an absolute maximum of 6.5 V. |
| 6 | NC | unconnected | No internal connection; leave the pin floating. |
| 7 | GND | power_in | Ground reference pin for the device. |
| 8 | VCS | input | Current-sense input for the MOSFET, where a resistor R_CS sets the peak current limit with a sense threshold of 240 mV to 260 mV and an absolute maximum of 6.5 V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XDS |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
TX4220 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
tx4220-etched.step/tx4220-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tx4220.step/tx4220.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XDS datasheet (7 pp, sha256
f6129aff7b899f7b, retrieved 2026-10-09, tier: lcsc) - 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).