Texas Instruments TPS6591104EA2ZRC

Overview

TPS6591104EA2ZRC from Texas Instruments is an integrated power management IC (PMIC) featuring three step-down DC-DC converters (VDD1, VDD2, VIO), one external-FET controller (VDDCtrl), eight programmable LDOs, embedded power controller with EEPROM, RTC with 32.768-kHz crystal support, and nine configurable GPIOs - designed for single-cell Li-ion or 5-V powered portable systems requiring multi-rail sequencing and dynamic voltage scaling.

For engineers reviewing the TPS6591104EA2ZRC datasheet, TPS6591104EA2ZRC pinout, TPS6591104EA2ZRC application, or TPS6591104EA2ZRC equivalent, this device supports precise I²C-controlled voltage scaling for dual-core processors, thermal shutdown protection, watchdog functionality, and flexible power-up sequencing via programmable state machine - critical for NVIDIA T30-based embedded platforms.

Technical Context

The TPS6591104EA2ZRC implements a dedicated embedded power controller (EPC) with EEPROM-based configuration to manage complex power-up/down sequences across 12+ regulated rails. Its dual-core SMPS (VDD1/VDD2) support independent dynamic voltage scaling via a dedicated high-speed I²C interface, while the VIO converter delivers up to 1.3 A at 1.5 V for I/O and memory subsystems.

It integrates a full-featured RTC with calendar, alarm, and 32-kHz oscillator (crystal or RC), plus two independent enable inputs (EN1/EN2) that can alternatively serve as dedicated I²C clock/data lines for voltage scaling. Nine GPIOs include LED drivers (10-mA sink), interrupt generation, and synchronization capability with external 3-MHz clock.

Key Specifications

Pinout & Package

TPS6591104EA2ZRC is housed in a 98-ball, 0.65-mm pitch BGA package (ZRC) measuring 9.0 mm × 6.0 mm, optimized for compact portable designs with thermal pad grounding and dense power rail routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS6591104EA2ZRC, TPS659112 offers broader industrial processor support but omits T30-specific DDR2 timing and VIO current capability, while TPS659114 provides higher DDR bandwidth and finer LDO resolution but requires complete revalidation for NVIDIA platforms.

Availability

TPS6591104EA2ZRC is available at Aetrix Electronics and suitable for smartphone baseband, NVIDIA T30 tablet, and industrial handheld terminal applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for TPS6591104EA2ZRC 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 experience in high-reliability PMIC design for mobile and industrial markets.

The TPS65911 family was engineered specifically for multi-core application processors like NVIDIA T30, delivering tightly coupled power sequencing, dynamic voltage scaling, and integrated RTC - targeting portable systems where space, efficiency, and boot reliability are critical.

FAQ

What is the primary processor compatibility of the TPS6591104EA2ZRC?

The TPS6591104EA2ZRC is explicitly designed for NVIDIA T30 SoCs with DDR2 memory support. Its EEPROM-configured power-up sequence, VDD1/VDD2 DVS timing, and VIO current capability match T30's boot and runtime requirements - confirmed in TI's Device Comparison Table and supported by application notes for Tegra platforms.

Does the TPS6591104EA2ZRC support external crystal or internal RC for the RTC?

Yes, the TPS6591104EA2ZRC supports both 32.768-kHz crystal (via OSC32KIN/OSC32KOUT pins) and internal RC oscillator for RTC operation. The crystal option delivers ±20 ppm accuracy; the RC alternative enables cost-sensitive designs where absolute timekeeping precision is secondary to fast startup and reduced BOM.

How many LDOs does the TPS6591104EA2ZRC provide, and what are their voltage step resolutions?

The TPS6591104EA2ZRC integrates eight user-programmable LDOs: LDO1, LDO2, and LDO4 support 50-mV steps from 1.0 V to 3.3 V; LDO3, LDO5–LDO8 use 100-mV steps over the same range. All are controlled via I²C and retain settings across power cycles when backed by VCC7 or VBACKUP.

Can EN1 and EN2 be used simultaneously as enable signals and I²C lines?

No - EN1 and EN2 are multiplexed functions: they operate either as general-purpose enable inputs *or* as dedicated I²C clock/data lines for VDD1/VDD2 voltage scaling, but not both concurrently. Configuration is set at boot via EEPROM and cannot be dynamically switched during operation.

What thermal protection features does the TPS6591104EA2ZRC include?

The TPS6591104EA2ZRC includes thermal shutdown that activates above 150°C junction temperature and hot-die detection that asserts interrupt INT1 before shutdown threshold is reached. Both features are hardware-monitored and independent of firmware, ensuring fail-safe response even during system hang or bootloader failure.