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Contents

README

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TPS65235RUKR

Texas Instruments · Power Management - Specialized · WQFN-20-EP(3x3)

TPS65235RUKR from Texas Instruments, in a WQFN-20-EP(3x3). 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 LX output Switching node of the boost converter.
2 VIN power_in Input to internal linear regulator; 4.5 V to 20 V recommended operating range.
3 VCC power_out Internal 6.3-V power supply; connect 1-μF ceramic capacitor to ground.
4 AGND power_in Analog ground; connect all ground pins and power pad together.
5 TCAP output Capacitor connection point for setting the LNB output rise time.
6 ISET output Resistor connection point for setting the LNB output current limit.
7 EN input Enable pin; pull to ground to disable VLNB output and enable I2C access when low.
8 FAULT tri_state Open-drain output pin; goes low when any fault flag is set.
9 ADDR input I2C address selection input; connect different resistor values to set I2C address.
10 VCTRL input Voltage control input; voltage level at this pin sets the output voltage.
11 SDA bidirectional I2C compatible bi-directional data line.
12 SCL input I2C compatible clock input.
13 EXTM input External modulation logic input; activates 22-kHz tone output with 22-kHz tone or logic signals.
14 DOUT output Tone detection output.
15 DIN input Tone detection input.
16 VLNB power_out LNB output voltage; 13 V to 18 V nominal output to satellite receiver or switch.
17 VCP power_out Gate drive supply voltage from charge pump; connect capacitor between this pin and VLNB.
18 BOOST power_out Boost regulator output; serves as input voltage to the internal linear regulator.
19 GDR output Gate drive control output for external MOSFET in DiSEqC 2.x support.
20 PGND power_in Power ground for boost converter; must be connected to all ground pins together.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WQFN-20-EP(3x3)
Category Power Management (PMIC)
Pins 21

CAD (KiCad official)

  • Symbol: TPS65235RUKR
  • Footprint: Package_DFN_QFN:UQFN-20-1EP_3x3mm_P0.4mm_EP1.85x1.85mm
  • 3D model: WQFN-20-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: tps65235rukr-etched.step / tps65235rukr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps65235rukr.step / tps65235rukr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 8f67bea0c1b79153, retrieved 2026-10-03, 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, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF