Texas Instruments TPS6590378ZWST

Overview

TPS6590378ZWST from Texas Instruments is a highly integrated power management unit (PMU) for application processors and SoMs, featuring seven configurable step-down SMPS regulators (including 6-A, 4-A, and dual 2-A outputs), seven general-purpose LDOs (300-mA, 200-mA, 100-mA, 50-mA variants), a 16-MHz crystal oscillator, RTC with alarm wake-up, 12-bit GPADC with three external channels, and dual I²C + SPI interfaces. It delivers precise voltage scaling and programmable power sequencing for industrial HMI and PLC systems.

For engineers reviewing the TPS6590378ZWST datasheet, TPS6590378ZWST pinout, TPS6590378ZWST application, or TPS6590378ZWST equivalent, key selection criteria include multi-phase DVS-capable SMPS topology, OTP-configurable power-up/down sequences, differential remote sensing on dual/triple-phase rails, Eco-mode quiescent current (15 µA), and thermal shutdown with high-temp warning - all in a 12-mm × 12-mm 169-pin nFBGA package.

Technical Context

The TPS6590378ZWST implements a hierarchical power architecture: seven SMPS regulators support flexible phase configurations (single/dual/triple-phase), with hardware- and software-controlled Eco-mode enabling ultra-low quiescent current down to 15 µA. Its OTP-programmable sequencer supports customizable power-up/down and SLEEP↔ACTIVE transitions, while dual I²C interfaces separate DVS control from general configuration tasks.

Integrated clocking includes a 16-MHz crystal oscillator for fast startup and a 32-kHz RC oscillator for sequencing; the GPADC monitors three external analog inputs plus six internal parameters (e.g., die temperature, VSYS). All SMPS regulators support external clock synchronization (1.7–2.7 MHz) and feature short-circuit protection, POWERGOOD indication, and internal soft-start.

Key Specifications

Pinout & Package

TPS6590378ZWST is housed in a 12-mm × 12-mm 169-pin nFBGA (ZWS) package with 0.8-mm ball pitch, featuring dedicated analog/digital/substrate ground planes, differential feedback inputs for multi-phase SMPS, and OTP-configurable boot pins (BOOT0/BOOT1) for sequence selection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS6590378ZWST, TPS659128ZWST offers GPIO expansion at the cost of triple-phase SMPS flexibility, while TPS659412ZWSR delivers superior efficiency and telemetry but mandates layout changes and firmware requalification.

Availability

TPS6590378ZWST is available at Aetrix Electronics and suitable for factory automation, programmable logic controllers, and human-machine interface applications requiring stable component supply, long-term lifecycle support, and full traceability.

Supply support for TPS6590378ZWST 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 industrial-grade PMIC design and automotive-qualified manufacturing.

The TPS659037 product line was engineered specifically for high-reliability industrial SoM and processor power delivery, emphasizing OTP-configurable sequencing, multi-phase DVS, and integrated thermal/analog monitoring to reduce system-level BOM count and firmware complexity.

FAQ

What is the maximum output current capability of the TPS6590378ZWST's primary SMPS rail?

The TPS6590378ZWST's highest-current SMPS rail is SMPS12, rated for up to 6 A with 10-mV voltage steps. When combined with SMPS45 (3 A) in triple-phase configuration, it delivers up to 9 A total output current for demanding processor core applications - confirmed in Section 1.1 Features and Electrical Characteristics tables of the SLIS165G datasheet.

Does the TPS6590378ZWST support external clock synchronization for its SMPS regulators?

Yes, the TPS6590378ZWST supports external clock synchronization across all SMPS regulators via the SYNCDCDC pin. It accepts an external clock input between 1.7 MHz and 2.7 MHz, enabling precise phase alignment with system clocks or noise-sensitive frequency bands - detailed in Section 4.11 and Figure 5-17 of the datasheet.

How many independent LDO regulators does the TPS6590378ZWST provide for external use?

The TPS6590378ZWST provides seven LDO regulators for external use: two 300-mA (LDO1/LDO2), two 200-mA (LDO3/LDO4), one 100-mA USB LDO (LDOUSB), one 50-mA (LDO9), and one low-noise 100-mA LDO (LDOLN) - all with 50-mV output steps and short-circuit protection, as specified in Section 1.1 Features and Table 4-6.

Can the TPS6590378ZWST perform power sequencing without host processor intervention?

Yes, the TPS6590378ZWST features an OTP-programmable power controller that executes fully autonomous power-up and power-down sequences, including SLEEP↔ACTIVE transitions. This eliminates dependency on host firmware for rail enablement timing - verified in Section 1.3 Description and Section 5.3 Feature Description of the SLIS165G datasheet.

What thermal protection mechanisms are integrated into the TPS6590378ZWST?

The TPS6590378ZWST integrates high-temperature warning and thermal shutdown functions. Die temperature is monitored via the GPADC's internal channel 11, triggering a warning interrupt before initiating hard shutdown at 125°C - documented in Section 1.1 Features, Section 4.13, and Figure 5-33 of the datasheet.