Texas Instruments TPS65014RGZR

Overview

TPS65014RGZR from Texas Instruments is an integrated power- and battery-management IC for single Li-ion/Li-polymer 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 inputs, thermal shutdown, and I²C-compatible serial interface. It delivers core, I/O, and peripheral rails in portable processors.

For engineers reviewing the TPS65014RGZR datasheet, TPS65014RGZR pinout, TPS65014RGZR application, or TPS65014RGZR equivalent, key selection criteria include its dual-buck architecture with LOW_PWR deep-sleep voltage scaling, programmable charge current via ISET resistor, ±1% output voltage accuracy, 70-µA quiescent current, and 48-pin VQFN (7 mm × 7 mm) thermal-pad package.

Technical Context

The TPS65014RGZR integrates a dual-output synchronous buck converter pair with independent feedback loops, where VMAIN supports fixed 3.0 V or 3.3 V outputs and VCORE supports selectable 0.85–1.8 V outputs via DEFCORE logic. Its linear charger uses AC or USB inputs with programmable current (100–1000 mA), precharge/taper/termination detection, and thermal foldback.

Control is implemented via I²C (100/400 kHz), GPIOs, and dedicated pins including LOW_PWR for dynamic core voltage scaling, PB_ONOFF for wake-up, and HOT_RESET for system reboot. All regulators feature UVLO, overtemperature protection, and open-drain power-good signaling (PG, PWRFAIL, RESPWRON).

Key Specifications

Pinout & Package

TPS65014RGZR is housed in a 48-pin VQFN package (7.00 mm × 7.00 mm) with exposed thermal pad connected to PGND. The package supports high-density layout and efficient heat dissipation in space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS65014RGZR, TPS65023RGZR offers greater VMAIN current and an extra buck rail but removes battery charging, while TPS65020RGZR retains charging and core/I/O regulation in identical packaging but omits GPIOs and drivers-making TPS65014RGZR optimal for feature-rich portable devices requiring integrated charging and peripheral control.

Availability

TPS65014RGZR is available at Aetrix Electronics and suitable for smartphone power management, PDA system power, digital still camera, and internet audio player applications requiring stable component supply and long-term lifecycle support.

Supply support for TPS65014RGZR 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.

The TPS65014RGZR belongs to TI's portable power-management IC product line, engineered specifically for single-cell Li-ion systems in space-constrained, battery-operated consumer electronics requiring high integration and low quiescent current.

FAQ

What is the maximum supported charge current for TPS65014RGZR?

The TPS65014RGZR supports up to 1000 mA charge current from AC input and up to 500 mA from USB input. This is set via an external resistor on the ISET pin and confirmed by the CHGCONFIG register bits. The actual delivered current depends on input voltage, battery state, and thermal conditions-TPS65014RGZR implements precharge, constant-current, and constant-voltage phases with automatic taper and termination.

Does TPS65014RGZR support dynamic voltage scaling for the processor core?

Yes, TPS65014RGZR supports dynamic voltage scaling for the processor core via its VCORE output. Using the DEFCORE pin or I²C register control, VCORE can be set to 0.85 V, 1.0 V, 1.1 V, 1.2 V, 1.3 V, 1.4 V, 1.5 V, or 1.8 V. The LOW_PWR pin further enables automatic reduction to a predefined low-power voltage or complete disablement during deep-sleep modes-directly optimizing core leakage power in TPS65014RGZR-based systems.

What package type and thermal characteristics does TPS65014RGZR use?

TPS65014RGZR uses a 48-pin VQFN package (RGZR suffix) measuring 7.00 mm × 7.00 mm with an exposed thermal pad. Its junction-to-ambient thermal resistance (RθJA) is 27.0°C/W, and junction-to-board (RθJB) is 4.6°C/W. The thermal pad must be soldered to a solid PGND plane for effective heat dissipation-critical for sustaining 1-A VMAIN and 400-mA VCORE loads without exceeding the 125°C max junction temperature.

Can TPS65014RGZR operate without an I²C host controller?

Yes, TPS65014RGZR can operate without an I²C host controller. Default output voltages, sequencing, and regulator enables are set by hardware pins (DEFCORE, DEFMAIN, PS_SEQ). I²C is optional for advanced features like dynamic voltage adjustment, fault logging, or GPIO reconfiguration. All essential power functions-including charging, regulation, and protection-operate autonomously using pin-strapped defaults in TPS65014RGZR's standalone mode.

How does the TPS65014RGZR handle battery cover removal?

The TPS65014RGZR monitors battery cover presence via the BATT_COVER pin. When this pin transitions low (cover removed), the device asserts PWRFAIL within 1.68–3.2 ms and initiates controlled shutdown of all regulators after deglitching. This prevents unsafe hot-swap conditions and protects system integrity-ensuring that TPS65014RGZR-powered devices safely power down before battery disconnection occurs.