The TPS65131RGER is a dual-output boost/inverting DC-DC power IC from TI, specifically designed to provide positive and negative bias voltages for LCD panels. The device integrates a switching controller that drives external MOSFETs to produce a positive voltage channel (boost) and a negative voltage channel (inverting), with typical outputs of +15V and -15V, meeting the bias requirements of large-size LCD panel driver ICs.

TPS65131 supports bipolar output with pin-programmable output voltages, simplifying design complexity. The device includes soft start, overcurrent protection, and thermal shutdown functions to ensure safe and reliable system operation. 1.8V-compatible logic control enables direct connection to modern MCUs and SoCs without additional level-shifting circuitry.

The UQFN-24 package (4mm x 4mm) combined with small external inductors enables compact PCB layout, ideal for ultra-slim LCD panel applications.

Note: Refer to the official TI TPS65131 datasheet for detailed electrical parameters. Subject to change without notice. Design engineers should verify all parameters before final design.

The TPS65131RGER uses UQFN-24 (24-pin Ultra-Thin Quad Flat No-lead package) with a compact footprint of only 4mm x 4mm, suitable for space-constrained ultra-slim LCD panel designs. The UQFN package has an exposed pad on the bottom that must be well-soldered to the PCB ground plane for thermal dissipation and electrical grounding.

The package's low height (less than 1mm) combined with small external inductors and capacitors enables the entire LCD bias power design within a compact PCB area, making it ideal for ultra-slim LCD TV and automotive display designs.

TPS65131RGER UQFN-24 package functional pin definitions:

• Pin 1 - EN: Chip enable pin; high enables, low disables, supports 1.8V logic level.
• Pin 2 - VCC: Chip power input; 2.5V to 5.5V, place bypass capacitor nearby.
• Pins 3-6 - VPOS: Positive voltage boost channel gate drive outputs; connect to external boost MOSFET gates.
• Pin 7 - VOSENSE: Positive output voltage feedback sense pin; connect to +15V output.
• Pin 8 - VONEG: Negative voltage inverting channel gate drive output; connect to external inverting MOSFET gate.
• Pin 9 - VNSENSE: Negative output voltage feedback sense pin; connect to -15V output.
• Pin 10 - SS: Soft start pin; connect soft start capacitor to set startup time.
• Pins 11-12 - GND: Chip ground pins.
• Pins 13-24 - NC: No-connect pins; see datasheet for details.

The following alternative parts are listed for reference. Before selecting an alternative, verify communication interface, supply voltage, security algorithm compatibility, and software API differences.

Texas Instruments (NASDAQ: TXN), headquartered in Dallas, Texas, USA, is one of the world's largest analog semiconductor companies. TI provides a comprehensive range of power management ICs including boost, inverting, buck, and LCD bias products serving applications from consumer electronics to industrial systems.

TI has multiple technical support centers and local warehouses in China, providing fast response for domestic customer samples and mass production needs.