Texas Instruments TPS65132WRVCR

Overview

TPS65132WRVCR from Texas Instruments is a single-inductor, dual-output power supply IC designed for split-rail LCD bias generation. It integrates a synchronous boost converter (VPOS), an LDO regulator, and a negative charge pump (VNEG) to deliver +5.4 V/40 mA and –5.4 V/40 mA from a 2.5–5.5 V input, targeting smartphone and tablet display power rails.

For engineers reviewing the TPS65132WRVCR datasheet, TPS65132WRVCR pinout, TPS65132WRVCR application, or TPS65132WRVCR equivalent, key selection factors include I²C-programmable voltage sequencing, active discharge control, 85–90% efficiency above 10 mA, and QFN-20 package compatibility with space-constrained portable designs.

Technical Context

The TPS65132WRVCR uses a single inductor to generate both positive and negative outputs: the boost converter drives REG at ~6.2 V, which feeds an integrated LDO for precise +5.4 V (±1%) on OUTP and powers a charge-pump-based inverting stage for –5.4 V (±1%) on OUTN. Its quasi-fixed 1.8 MHz switching frequency enables compact 4.7 µH inductors and low-ESR ceramic capacitors.

I²C interface supports programmable power-up/down sequencing, output voltage selection across ±4–±6 V ranges in 0.1-V steps, and configurable active discharge via DISP/DISN bits. Thermal protection, UVLO (2.5 V rising threshold), and 130 nA shutdown current ensure robust operation in battery-powered systems.

Key Specifications

Pinout & Package

TPS65132WRVCR is housed in a thermally enhanced 4.0 mm × 3.0 mm WQFN-20 package with exposed PowerPAD for improved thermal dissipation in high-density portable PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output LCD bias applications.

Compared with TPS65132WRVCR, the TPS65132ARVCR trades I²C configurability for lower unit cost and simpler layout, while the MAX1718ETL+ adds gate drivers and diagnostics at the expense of larger size and higher complexity-making TPS65132WRVCR optimal for space-constrained, software-configurable portable displays.

Availability

TPS65132WRVCR is available at Aetrix Electronics and suitable for smartphone LCD bias, tablet display power, and wearable micro-display applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS65132WRVCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in high-reliability power conversion ICs.

The TPS65132 family was engineered specifically for compact, high-efficiency split-rail bias generation in portable LCD and OLED displays-emphasizing minimal solution size, programmable sequencing, and ultra-low quiescent current.

FAQ

What is the maximum output current capability of the TPS65132WRVCR?

The TPS65132WRVCR delivers up to +5.4 V/40 mA on the VPOS rail and –5.4 V/40 mA on the VNEG rail. Its internal architecture supports 80 mA peak capability in certain variants, but the TPS65132WRVCR is factory-configured for 40 mA per rail to optimize efficiency and thermal performance in QFN-20 packaging. This rating is validated across –40°C to +85°C ambient.

Does the TPS65132WRVCR support I²C voltage programming?

Yes, the TPS65132WRVCR features a full I²C interface supporting Standard and Fast mode (100/400 kHz). It allows real-time programming of VPOS and VNEG output voltages in 0.1-V steps from ±4.0 V to ±6.0 V, power-up/down sequencing order, active discharge enable/disable, and soft-start timing-all stored in non-volatile memory with >1000 write cycles.

What package type and thermal characteristics does the TPS65132WRVCR use?

The TPS65132WRVCR uses a 4.0 mm × 3.0 mm WQFN-20 package with exposed PowerPAD. Its thermal metrics include R_θJA = 39.0°C/W and R_θJB = 13.6°C/W, enabling reliable operation up to 125°C junction temperature. The PowerPAD must be soldered to a minimum 100 mm² copper pour for effective heat transfer in production PCBs.

How does the TPS65132WRVCR handle power sequencing between VPOS and VNEG rails?

The TPS65132WRVCR implements programmable sequencing via its I²C interface: users can configure independent ENP and ENN enable timing, set delay registers (DLYx), and define power-up order (e.g., VPOS first, then VNEG) to prevent display panel latch-up or ghosting. Sequencing behavior is retained across power cycles due to non-volatile register storage.

Is active output discharge supported on both rails of the TPS65132WRVCR?

Yes, the TPS65132WRVCR supports independent active discharge on both rails via I²C-configurable DISP and DISN bits. When enabled, it discharges VPOS through a 70 Ω internal resistor and VNEG through a 20 Ω internal resistor during shutdown-ensuring rapid rail collapse (<1 ms) critical for display turn-off integrity and ESD-safe panel handling.