Texas Instruments TPS65058RGET

Overview

TPS65058RGET from Texas Instruments is a highly integrated power management IC (PMIC) for single-cell Li-Ion/Li-Polymer systems, featuring two 2.25 MHz synchronous step-down converters (DCDC1: 0.6A, DCDC2: 1A) and three low-input-voltage LDOs (VLDO1: 400mA, VLDO2/VLDO3: 200mA each), all in a 4 mm × 4 mm 24-pin QFN package. It delivers dynamic voltage switching for processor core/I/O rails in satellite radio modules and portable embedded systems.

For engineers reviewing the TPS65058RGET datasheet, TPS65058RGET pinout, TPS65058RGET application, or TPS65058RGET equivalent, key selection considerations include its dual-converter phase alignment, PFM/PWM mode control via MODE pin, output voltage programmability via DEF pins, and thermal shutdown at 150°C with 20°C hysteresis.

Technical Context

The TPS65058RGET implements two synchronous buck converters operating at a fixed 2.25 MHz frequency with 180° out-of-phase switching to reduce input RMS current and enable smaller input capacitors. Each converter supports 100% duty cycle operation for ultra-low dropout and includes internal P-channel (250–500 mΩ) and N-channel (180–250 mΩ) MOSFETs with current limiting (1.15–1.65 A).

It integrates three independent LDOs with programmable outputs: VLDO1 fixed at 3.3 V, VLDO2 selectable between 1.8 V/1.2 V, and VLDO3 between 1.8 V/1.3 V - all enabled individually via EN_LDOx pins and supporting 1.5 V to 6.5 V input range. A dedicated reset generator provides 100 ms delay with open-drain active-low RESET output.

Key Specifications

Pinout & Package

TPS65058RGET is housed in a thermally enhanced 24-pin QFN (RGE) package with exposed PowerPAD™ connected to AGND/PGND. Pin numbering follows top-view layout with pins 1–24 arranged in clockwise order starting from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS65058RGET, TPS65053RGER offers identical layout compatibility but reduced integration, while TPS65023RSBR provides expanded functionality at the cost of larger size and non-interchangeable packaging - making TPS65058RGET optimal for space-constrained, triple-LDO satellite radio and portable media applications.

Availability

TPS65058RGET is available at Aetrix Electronics and suitable for satellite radio modules, portable media players, industrial handheld terminals, and wearable health monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TPS65058RGET 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 for battery-powered systems.

The TPS65058 product line was engineered specifically for single-cell Li-Ion/Li-Polymer applications demanding compact, efficient, and flexible multi-rail power delivery - targeting satellite radio, portable media, and industrial handheld markets.

FAQ

What is the maximum input voltage rating for TPS65058RGET?

The absolute maximum input voltage on all pins except AGND, PGND, and EN_LDO1 is –0.3 V to 7 V. For EN_LDO1, the limit is –0.3 V to VCC + 0.5 V. Recommended operating range for VINDCDC1/2 and LDO inputs is 2.5 V to 6 V and 1.5 V to 6.5 V respectively - staying within these ensures reliable operation of TPS65058RGET without risk of latch-up or permanent damage.

How does the MODE pin affect TPS65058RGET operation?

The MODE pin on TPS65058RGET selects between automatic PFM/PWM mode (MODE = GND) and forced fixed-frequency PWM mode (MODE = VIN). In PFM mode, TPS65058RGET achieves ultra-low quiescent current (32 µA typical) at light loads; in forced PWM, it maintains constant 2.25 MHz switching for predictable EMI and improved transient response - critical for noise-sensitive analog circuits.

Can TPS65058RGET support dynamic voltage scaling for processor cores?

Yes - TPS65058RGET supports dynamic voltage scaling via the DEF_DCDC2 pin, which configures DCDC2 output between 1.2 V and 1.8 V. This enables real-time adjustment of the processor core supply voltage based on performance requirements, reducing power consumption during low-activity states while maintaining stability - a key capability implemented directly in TPS65058RGET's control architecture.

What is the purpose of the PowerPAD™ on the TPS65058RGET package?

The PowerPAD™ on the TPS65058RGET's RGE package is an exposed thermal pad that must be soldered to a PCB copper pour connected to AGND/PGND. It reduces thermal resistance (θ_JA = 35 K/W) and improves power dissipation - essential for sustaining 1 A output on DCDC2 under continuous load. Without proper PowerPAD™ connection, TPS65058RGET may exceed junction temperature limits and trigger thermal shutdown.

Does TPS65058RGET provide power-good monitoring for both DC/DC converters?

Yes - TPS65058RGET includes internal PGOOD1 and PGOOD2 monitoring for DCDC1 and DCDC2, respectively. These signals feed a dedicated reset generator that asserts the open-drain RESET pin only after both outputs reach and maintain ≥95% of their nominal voltages for 100 ms. This coordinated power-good behavior ensures deterministic system startup and is intrinsic to TPS65058RGET's fault-monitoring architecture.