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Contents

README

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TPS65131TRGERQ1

Texas Instruments · DC-DC Converters · VQFN-24-EP(4x4)

TPS65131TRGERQ1 from Texas Instruments, in a VQFN-24-EP(4x4). 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 INP power_in Boost converter input power supply pin, 2.7V to 5.5V operating range
2 PGND power_in Power ground pin
3 PGND power_in Power ground pin
4 VIN power_in Control supply input, operating voltage range 2.7V to 5.5V
5 INN power_in Inverting converter input power supply pin, 2.7V to 5.5V operating range
6 INN power_in Inverting converter input power supply pin, 2.7V to 5.5V operating range
7 BSW output Gate-control pin for external battery switch PMOS, goes low when ENP is set high
8 ENP input Enable pin for positive-output voltage, 0V disabled and VIN enabled
9 PSP input Power-save mode enable for boost converter stage, 0V disabled and VIN enabled
10 ENN input Enable pin for negative-output voltage, 0V disabled and VIN enabled
11 PSN input Power-save mode enable for inverter stage, 0V disabled and VIN enabled
12 NC unconnected No internal connection
13 OUTN bidirectional Inverting converter switch output, provides negative output voltage VNEG
14 OUTN bidirectional Inverting converter switch output, provides negative output voltage VNEG
15 VNEG input Negative-output voltage-sense input for feedback divider
16 FBN input Feedback pin for negative-output voltage divider, nominal voltage 0V
17 VREF power_in Reference output voltage 1.213V, bypass with 220nF capacitor to ground
18 CN bidirectional Compensation pin for inverting converter control, requires external capacitor
19 AGND power_in Analog ground pin, reference for control circuits
20 NC unconnected No internal connection
21 CP bidirectional Compensation pin for boost converter control, requires external capacitor
22 FBP input Feedback pin for positive-output voltage divider, nominal voltage 1.213V
23 VPOS input Positive-output voltage-sense input for feedback divider
24 INP power_in Boost converter input power supply pin, 2.7V to 5.5V operating range
25 Thermal Pad power_in Thermal pad for thermal performance, connect to PGND

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-24-EP(4x4)
Category Power Management (PMIC)
Pins 25

CAD (KiCad official)

  • Symbol: TPS65131TRGERQ1
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: tps65131trgerq1-etched.step / tps65131trgerq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps65131trgerq1.step / tps65131trgerq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (44 pp, sha256 efe07626c61b9749, retrieved 2026-09-23, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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