Texas Instruments O917A186TRGZRQ1

Overview

O917A186TRGZRQ1 from Texas Instruments is an automotive-grade power management unit (PMU) integrating five step-down SMPS regulators (including dual-phase 7-A capability), five LDOs, a 12-bit sigma-delta GPADC, thermal monitoring, and configurable power sequencing. It operates from 3.135 V to 5.25 V input, delivers up to 3.5 A per SMPS channel, and supports dynamic voltage scaling for processor core and memory rails in ADAS and digital cluster systems.

For engineers reviewing the O917A186TRGZRQ1 datasheet, O917A186TRGZRQ1 pinout, O917A186TRGZRQ1 application, or O917A186TRGZRQ1 equivalent, key selection criteria include AEC-Q100 Grade 2 qualification (–40°C to +105°C), OTP-configurable power-up/down sequences, dual I²C + SPI control interfaces, differential remote sensing on high-current SMPS, and integrated short-circuit/thermal protection with POWERGOOD signaling.

Technical Context

The O917A186TRGZRQ1 implements a hierarchical power architecture: five SMPS regulators (two 3.5-A channels support dual-phase 7-A operation with differential feedback; three additional channels rated at 3-A, 2-A, and 1.5-A) feed downstream LDOs and system loads. Its OTP-based power sequencer enables factory-programmed startup without firmware, while runtime reconfiguration via SPI/I²C supports dynamic voltage scaling and GPIO remapping.

Control is split across two dedicated interfaces: one I²C port handles DVS commands exclusively, while a second general-purpose I²C and SPI interface manage resource configuration, ADC reads, and interrupt handling. The integrated 12-bit GPADC monitors eight channels-including two external inputs, supply voltages, output currents, and die temperature-feeding real-time health data to the host processor via interrupt-driven events.

Key Specifications

Pinout & Package

Package: 7-mm × 7-mm, 48-pin VQFN (RGZ) with 0.5-mm pitch and exposed thermal pad (PGND).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS65916Q1RSLRQ1 and MAX20029ATGB/V+T, the O917A186TRGZRQ1 provides higher current scalability via dual-phase SMPS, factory-programmed sequencing eliminating boot dependencies, and integrated 12-bit telemetry essential for functional safety validation in ASIL-B systems.

Availability

O917A186TRGZRQ1 is available at Aetrix Electronics and suitable for automotive digital cluster, ADAS camera module, and navigation head unit designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for O917A186TRGZRQ1 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 automotive qualification experience.

The TPS65917 product line delivers highly integrated, AEC-Q100-qualified PMUs for next-generation automotive processors - designed specifically to reduce system complexity, improve power efficiency, and accelerate time-to-market for digital cockpit and ADAS platforms.

FAQ

What automotive qualification level does the O917A186TRGZRQ1 meet?

The O917A186TRGZRQ1 is AEC-Q100 qualified at Grade 2, supporting ambient operating temperatures from –40°C to +105°C. It also meets HBM Class 2 and CDM Class C4B ESD requirements. This qualification is explicitly documented in the official TPS65917-Q1 datasheet (SLVSCO4D) and applies directly to the O917A186TRGZRQ1 orderable variant, which shares identical silicon, test flow, and package construction.

Does the O917A186TRGZRQ1 support dynamic voltage scaling (DVS) for processor cores?

Yes, the O917A186TRGZRQ1 supports hardware- and software-controlled DVS on its 3.5-A and 3-A SMPS regulators. A dedicated I²C interface enables real-time voltage adjustment without disrupting the main configuration bus. The O917A186TRGZRQ1 datasheet confirms DVS register access, slew rate control, and Eco-mode operation - all implemented in silicon and verified across production lots.

How many power rails can the O917A186TRGZRQ1 generate simultaneously?

The O917A186TRGZRQ1 generates ten regulated power rails: five step-down SMPS outputs (configurable from 0.7 V to 3.3 V) and five LDO outputs (0.9 V to 3.3 V). All rails operate concurrently, with independent enable/disable control and POWERGOOD monitoring. This capability is confirmed in the device's functional diagram and electrical characteristics tables in the SLVSCO4D datasheet.

What package type and pin count does the O917A186TRGZRQ1 use?

The O917A186TRGZRQ1 uses a 48-pin VQFN package (RGZ suffix) with 7.0 mm × 7.0 mm body size and 0.5-mm pitch. The exposed thermal pad (PGND) is electrically and thermally connected to the die substrate. This package is identical to that specified for TPS65917-Q1 in TI's official orderable addendum and mechanical drawings.

Can the O917A186TRGZRQ1 synchronize its SMPS switching frequency to an external clock?

Yes, the O917A186TRGZRQ1 supports external clock synchronization via the GPIO_3 pin configured as SYNCDCDC. It accepts external clocks between 1.7 MHz and 2.7 MHz, enabling system-level EMC optimization by aligning multiple PMUs or switching regulators to a common timing source. This feature is fully documented in Section 1.1 "Features" and Section 3.2 "Signal Descriptions" of the SLVSCO4D datasheet.