component
TX4401
Public Made by Adomby adom
XDS DC-DC Converters, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownTX4401
XDS · DC-DC Converters · ESOP-8
TX4401 from XDS, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RT | input | Oscillator frequency programming pin. A resistor from RT to GND sets the internal switching frequency (adjustable 350 kHz to 1.5 MHz). Typical value 60.4 kΩ sets fOSC ≈ 1 MHz per the application circuit. |
| 2 | MODE/SYNC | input | Dual-function mode select and external clock synchronisation input. Drive high to enter the 50μA low-power (light-load) mode; can also be driven with an external clock to synchronise the internal oscillator. |
| 3 | SW1 | passive | Switch node 1. Connects to one terminal of the external buck-boost inductor; internally tied to the SW A (high-side input) and SW B (low-side to GND) power MOSFETs. |
| 4 | SW2 | passive | Switch node 2. Connects to the other terminal of the external buck-boost inductor; internally tied to the SW C (low-side to GND) and SW D (high-side to VOUT) power MOSFETs. |
| 5 | GND | power_in | Device ground. Return for the power MOSFETs and internal control circuitry; connect to the system ground plane. |
| 6 | VOUT | power_out | Regulated output voltage. Range 2.5V-5.5V (per internal block diagram); connect an output filter capacitor (e.g. 22μF) to GND close to the pin. |
| 7 | VIN | power_in | Input supply pin. 2.7V-5.5V for the MSOP-10 variant. Bypass with a low-ESR capacitor of at least 4.7μF as close to the pin as possible. Absolute maximum 6V. |
| 8 | EN | input | Enable / shutdown input. Drive high to enable the converter, drive low to place the device into <1μA shutdown mode. |
| 9 | FB | input | Feedback pin. Regulated to an internal 1.22V reference; connect to the mid-point of the output resistor divider to program VOUT (VOUT = 1.22 × (1 + R1/R2)). |
| 10 | VC | output | Error-amplifier output / loop-compensation node. Connect an external RC network (e.g. 15kΩ + 1.5nF to GND per the application circuit) here to shape the control-loop response. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XDS |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 10 |
CAD (KiCad official)
- Symbol:
TX4401 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
tx4401-etched.step/tx4401-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tx4401.step/tx4401.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XDS datasheet (7 pp, sha256
3fd3b5b827543a76, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).