component

TX4150A

Public Unreviewed

by Ray

XDS DC-DC Converters, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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TX4150A

XDS · DC-DC Converters · ESOP-8

TX4150A 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 CS input Output current setting pin. A sense resistor (Rcs) from CS to GND programs the output constant-current limit and is also used by the internal line-drop (cable) compensation network.
2 BST passive Bootstrap capacitor pin for the high-side N-MOSFET gate driver. A 100 nF ceramic capacitor is connected between BST and SW; the internal LDO charges it to approximately 5.3V when the low-side switch is on.
3 SW output Switch node output. Common drain of the integrated high-side and low-side power MOSFETs; connect the external buck inductor here. Absolute maximum voltage is VDD+0.3V.
4 GND power_in Chip ground reference. Must be tied to the system ground plane; also internally connected to the exposed thermal pad (EP).
5 VDD power_in Chip power supply input. Wide operating range 4.5V to 36V (36V absolute max); input over-voltage protection triggers at 33V (Vinovp). Decouple with low-ESR ceramic input capacitance close to the pin.
6 FB input Feedback input. Connect a resistor divider from VOUT so that FB regulates to the internal 0.9V reference (VREF). VFB_OVP output over-voltage threshold is 1.1×VFB. Absolute max 6V.
7 EN input Chip enable input. Driving EN above its threshold turns the converter on; pulling it low places the part in shutdown. Do not leave floating: use a pull-up resistor, or a divider from VIN to program a higher input UVLO threshold. Absolute max 6V.
8 LED output External LED indicator drive output (typ. status/charge indicator in USB-charger applications). Absolute max 6V.
EP EP power_in Exposed thermal pad on the bottom of the ESOP-8 package. Internally connected to GND; must be soldered to a PCB ground copper pour for proper thermal performance.

Key specifications

Parameter Value
Manufacturer XDS
Package ESOP-8
Category PMIC
Pins 9

CAD (KiCad official)

  • Symbol: TX4150A
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: XDS datasheet (11 pp, sha256 cf6b1936f63a5adb, 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