component

TX4401

Public Made by Adom

by adom

XDS DC-DC Converters, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmictx4401
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs tx4401: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
pads.json footprint: the datasheet shows MSOP-10 (10 leads at 0.5mm pitch), matching the symbol's 10 pins; the page had it on a 9… · Ray
page.json tx4401: specified limits as data (metadata.characteristics, 8 rows from the datasheet) · Ray
README.md tx4401: specified limits as data (metadata.characteristics, 8 rows from the datasheet) · Ray
tx4401-etched.fit.json tx4401: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx4401-etched.glb tx4401: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx4401-etched.step tx4401: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx4401.glb 3D: replace the model to match the corrected MSOP-10_3x3mm_P0.5mm footprint. The page shipped a SOIC-8 body for an MSOP… · Ray
tx4401.kicad_mod footprint: the datasheet shows MSOP-10 (10 leads at 0.5mm pitch), matching the symbol's 10 pins; the page had it on a 9… · Ray
tx4401.kicad_sym Publish 0.1.0 · Ray
tx4401.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
tx4401.step 3D: replace the model to match the corrected MSOP-10_3x3mm_P0.5mm footprint. The page shipped a SOIC-8 body for an MSOP… · Ray

TX4401

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN, VOUT maximum voltage VIN, VOUT -0.3 6 V 3
RT, FB, VC, EN, MODE/SYNC voltage RT, FB, VC, EN, MODE/SYNC -0.3 6 V 3
SW1, SW2 maximum voltage SW1, SW2 -0.3 6 V 3
Operating temperature range -40 85 °C Performance guaranteed 0°C to 70°C (note 2) 3
Soldering temperature 300 °C 10 s soldering 3
Storage temperature range -65 150 °C 3
Input/output voltage range (MSOP10) 2.7 5.5 V MSOP-10 package variant 1
Adjustable operating frequency 350 1.5 kHz Set by external resistor on RT; max printed as 1.5 MHz 1

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tx4401.step / tx4401.glb are 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).

Datasheet PDF