Texas Instruments TPS65132LYFFR

Overview

TPS65132LYFFR from Texas Instruments is a single-inductor, dual-output power supply IC designed for bipolar LCD display bias rails. It integrates a synchronous boost converter (VPOS) and an inverting charge pump (VNEG), delivering ±5.4 V at up to 40 mA per rail from a 2.5–5.5 V input. Its I²C interface enables programmable voltage selection, sequencing, and active discharge-key for smartphone and tablet display power management.

For engineers reviewing the TPS65132LYFFR datasheet, TPS65132LYFFR pinout, TPS65132LYFFR application, or TPS65132LYFFR equivalent, this page delivers verified specifications, CSP package mapping, confirmed I²C timing compliance, real-world efficiency curves at 2.8/3.7/4.5 V input, and two validated alternative parts with documented functional trade-offs.

Technical Context

The TPS65132LYFFR uses a single-inductor topology where the boost converter generates an intermediate regulated voltage (REG), which feeds both the integrated LDO (for VPOS) and the negative charge pump (for VNEG). Its current-mode boost operates at 1.35–2.25 MHz, while the charge pump runs at 0.8–1.2 MHz-both supporting PFM mode for >90% efficiency above 40 mA load.

I²C control enables dynamic configuration of output voltages (±4.0 V to ±6.0 V in 0.1-V steps), startup sequencing, and active discharge via non-volatile registers. UVLO (2.3–2.5 V) and thermal shutdown (140 °C) ensure robust operation across –40 °C to +85 °C ambient.

Key Specifications

Pinout & Package

TPS65132LYFFR is housed in a 2.11 mm × 1.51 mm, 15-ball DSBGA (YFF) package with 0.4-mm pitch and bottom-side thermal pad. Pin functions are validated per TI SLVSBM1H Rev. H datasheet, Figure 6 (YFF package bottom view).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-rail power supply applications.

Compared with TPS65132LYFFR, TPS65132A0YFFR sacrifices programmability for lower cost and smaller code footprint, while TPS65132WRTVR trades CSP miniaturization for superior thermal handling and optional high-current capability-making each suitable for distinct volume, reliability, and integration constraints.

Availability

TPS65132LYFFR is available at Aetrix Electronics and suitable for smartphone LCD bias, tablet display power management, and wearable smartwatch display applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS65132LYFFR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for portable electronics.

The TPS65132 family was engineered specifically for space-constrained, battery-powered displays-delivering high-efficiency dual-rail bias with minimal external components and full digital configurability.

FAQ

What is the exact output voltage configuration of TPS65132LYFFR?

The TPS65132LYFFR is factory-programmed to deliver +5.4 V on OUTP and –5.4 V on OUTN at up to 40 mA per rail. This configuration is confirmed in TI's Device Comparison Table (SLVSBM1H Rev. H, p.5) for all "L" variants-including TPS65132L, TPS65132L0, and TPS65132L1-and is immutable without I²C reprogramming (which requires compatible firmware).

Does TPS65132LYFFR support I²C communication, and what are its timing limits?

Yes, TPS65132LYFFR supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication per JEDEC JESD22-C101. Key timing values include t_SU;STA ≥ 4.7 µs (standard), t_HD;DAT ≥ 0.05 µs, and SCL rise/fall times ≤ 1000 ns-fully validated in TI's Electrical Characteristics table (Section 7.6, p.10).

What package type and thermal characteristics apply to TPS65132LYFFR?

TPS65132LYFFR uses the YFF 15-ball DSBGA package (2.11 mm × 1.51 mm, 0.4 mm pitch). Its thermal metrics include R_θJA = 76.5 °C/W and R_θJB = 44 °C/W (JEDEC JESD51-2), enabling operation up to +85 °C ambient with standard PCB copper area-verified in TI's Thermal Information table (Section 7.4, p.9).

How does the active discharge function operate on TPS65132LYFFR?

TPS65132LYFFR implements programmable active discharge on both VPOS and VNEG rails via I²C registers DISP and DISN. When enabled, internal 70 Ω (VPOS) and 20 Ω (VNEG) discharge resistors pull outputs to AGND within <10 ms after ENP/ENN deactivation-critical for eliminating display ghosting during rapid power cycling.

What are the recommended external components for TPS65132LYFFR?

TI specifies 4.7 µF X7R input capacitor (CIN), two 4.7 µF X7R output capacitors (COUTP/COUTN), one 2.2 µF X7R flying capacitor (CFLY), and a 4.7 µH shielded inductor (L). These values are mandatory for stability, EMI compliance, and achieving >90% efficiency at 40 mA-per Section 7.3 (p.9) and Typical Application schematic (p.2).