Texas Instruments TPS65014RGZT

Overview

TPS65014RGZT from Texas Instruments is an integrated power- and battery-management IC for single Li-ion/Li-polymer powered systems, featuring dual step-down converters (1-A VMAIN at 95% efficiency, 400-mA VCORE at 90%), two 200-mA LDOs, linear charger with USB/AC dual-input support, thermal shutdown, and I²C-compatible serial interface. It delivers core/peripheral rails in portable processors while enabling deep-sleep voltage scaling via LOW_PWR.

For engineers reviewing the TPS65014RGZT datasheet, TPS65014RGZT pinout, TPS65014RGZT application, or TPS65014RGZT equivalent, this page provides verified functional partitioning, validated regulator specifications, confirmed I²C timing (100/400 kHz), exact VQFN-48 package mapping, and real-world use cases in battery-powered handheld devices requiring coordinated power sequencing and charge management.

Technical Context

The TPS65014RGZT integrates a dual-input linear charger (AC/USB) with programmable current (100–1000 mA), two synchronous buck converters (VMAIN: 3.0/3.3 V fixed; VCORE: 0.85–1.8 V selectable), and two independently enabled 200-mA LDOs (VLDO1/VLDO2). All regulators feature internal compensation and output discharge resistors (400 Ω).

Its 48-pin VQFN package supports full power sequencing control via PS_SEQ, deep-sleep mode via LOW_PWR, battery cover detection (BATT_COVER), hot reset (HOT_RESET), and system-level fault signaling through open-drain INT, PWRFAIL, and RESPWRON outputs - all managed over a 2-wire I²C interface compliant with 100-kHz and 400-kHz modes.

Key Specifications

Pinout & Package

TPS65014RGZT is housed in a 7.0 mm × 7.0 mm VQFN-48 package with exposed thermal pad (connected to PGND). The package supports high-density PCB layout and efficient heat dissipation via bottom-side thermal pad soldering to ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar power-management IC applications.

Compared with TPS65014RGZT, TPS65023RGZR offers higher current and extra buck channel but lacks charger and LDOs, while BQ24075RGTR provides focused charging compliance without power conversion - making TPS65014RGZT uniquely suited for compact, battery-first portable designs requiring full-system integration.

Availability

TPS65014RGZT is available at Aetrix Electronics and suitable for smartphone power management, PDA system power, digital audio player design, and internet radio device development requiring stable component supply and long-term industrial availability.

Supply support for TPS65014RGZT 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 decades of expertise in battery-charged portable systems.

The TPS65014RGZT belongs to TI's Power Management IC portfolio designed specifically for single-cell Li-ion/Li-polymer handheld devices requiring tightly coordinated charging, multi-rail conversion, and intelligent power sequencing in space-constrained layouts.

FAQ

What is the maximum supported charge current for TPS65014RGZT when using the AC adapter input?

The TPS65014RGZT supports up to 1000 mA of charge current when powered from the AC adapter input. This is programmable via an external resistor connected to the ISET pin, with typical values ranging from 100 mA to 1000 mA depending on R(ISET) selection (825 Ω to 8250 Ω). The device also includes precharge, taper, and termination detection to ensure safe Li-ion charging per JEITA guidelines - all implemented within the TPS65014RGZT without external controllers.

Does TPS65014RGZT support dynamic voltage scaling for the VCORE rail?

Yes, TPS65014RGZT supports hardware-based dynamic voltage scaling for the VCORE rail via the DEFCORE pin. When DEFCORE = 0, VCORE is set to 1.5 V; when DEFCORE = 1, it is set to 1.8 V. Additionally, the LOW_PWR pin can force VCORE into a lower predefined voltage or disable it entirely during deep-sleep mode - enabling real-time power optimization without I²C register writes. This behavior is fully documented in the TPS65014RGZT datasheet Section 7.4.

Can TPS65014RGZT operate without the I²C interface enabled?

Yes, TPS65014RGZT operates in default hardware-configured mode without I²C communication. Fixed output voltages (VMAIN, VCORE), LDO enable states, and power-up sequencing are determined by pin strapping (DEFMAIN, DEFCORE, PS_SEQ). The I²C interface is optional and used only for advanced features like GPIO control, fault masking, or runtime voltage adjustment - making the TPS65014RGZT functional out-of-box in simple implementations.

What thermal management provisions does TPS65014RGZT include?

TPS65014RGZT includes three thermal protections: (1) Overtemperature suspend at 145°C (20°C hysteresis), (2) Thermal shutdown at 160°C, and (3) Temperature sensing via TS pin with dedicated comparator thresholds (V(LTF)/V(HTF)). Its 7-mm × 7-mm VQFN package has RθJA = 27.0°C/W and requires thermal pad soldering to PCB ground for effective heat dissipation - critical for maintaining reliability in sealed portable enclosures where the TPS65014RGZT may sustain >1 W continuous power dissipation.

How does TPS65014RGZT handle battery cover removal detection?

TPS65014RGZT uses the BATT_COVER pin to detect physical battery cover removal. When BATT_COVER transitions low, the device asserts PWRFAIL (active-low) after a 1.68–3.2 ms deglitch delay, disables all regulators, and logs the event. This hardware-level response prevents unsafe operation with exposed battery contacts and enables firmware to initiate graceful shutdown - a safety-critical function validated in the TPS65014RGZT's production test flow and referenced in Section 6.9 of its datasheet.