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Texas Instruments O919A14ETRGZRQ1
- Part No.:
- O919A14ETRGZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
O919A14ETRGZRQ1.pdf
- Description:
- PMU FOR PROCESSOR
- Quantity:
- Payment:
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Product details
Overview
O919A14ETRGZRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive power management unit (PMU) integrating four step-down SMPS regulators (two 3.5-A, one 3-A, one 1.5-A), four LDOs (300-mA, 300-mA, 100-mA, 200-mA), a 12-bit sigma-delta GPADC with eight channels, and configurable power sequencing - designed for processor core, memory, and I/O rail supply in automotive digital clusters.
For engineers reviewing the O919A14ETRGZRQ1 datasheet, O919A14ETRGZRQ1 pinout, O919A14ETRGZRQ1 application, or O919A14ETRGZRQ1 equivalent, this page delivers verified technical context, validated pin functions, real-world automotive use cases, and confirmed alternative options - all grounded in TI's production-grade SLVSDM1A datasheet and official RGZ package documentation.
Technical Context
The O919A14ETRGZRQ1 implements OTP-programmed power sequencing for startup, sleep-to-active transitions, and fault recovery, with hardware- and software-controlled Eco-mode across three SMPS rails. Its dual-phase capability on SMPS1/SMPS2 enables 7-A combined output with differential remote sensing for high-accuracy voltage regulation under dynamic load.
It integrates two I²C interfaces (one dedicated to DVS control) and one SPI interface for configuration and dynamic voltage scaling, alongside a 32-kHz RC oscillator, PLL-based 2.2-MHz internal SMPS clock, and GPIO-controlled external clock synchronization (1.7–2.7 MHz) to reduce system-level EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | –40°C to +105°C ambient - qualified for automotive Grade 2 applications per AEC-Q100. |
| SMPS Output Current | Two 3.5-A SMPS (dual-phase capable), one 3-A SMPS, one 1.5-A SMPS - supports processor core, memory, I/O, and LDO preregulation. |
| LDO Output Current | Two 300-mA LDOs (bypass mode supported), one 100-mA low-noise LDO (≤50 mA noise-critical), one 200-mA LDO - powers low-current or noise-sensitive domains. |
| GPADC Resolution | 12-bit sigma-delta with 8 input channels (2 external) - enables real-time monitoring of die temperature, supply voltages, and output currents. |
| Control Interfaces | SPI + two I²C interfaces (one DVS-dedicated, one general-purpose) - allows flexible resource configuration and dynamic voltage scaling coordination. |
| Power Sequencing | OTP-configurable power-up/down and SLEEP↔ACTIVE sequences - enables boot without host firmware and deterministic state transitions. |
| Quiescent Current | 20 μA in Off Mode, 90 μA in Sleep Mode (with two SMPS active) - minimizes battery drain during vehicle key-off states. |
Pinout & Package
Package: VQFN-48 (RGZ), 7.00 mm × 7.00 mm, 0.5-mm pitch, exposed thermal pad (PGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SMPS1_IN / SMPS2_IN / SMPS3_IN / SMPS4_IN | SMPS input supply pins | Accept 3.135–5.25 V system input; enable independent or shared VSYS routing to each regulator stage. |
| SMPS1_FDBK / SMPS2_FDBK | Differential feedback inputs (dual-phase) | Enable precise remote sensing for SMPS1/SMPS2 in combined 7-A mode - reduces voltage drop errors at load point. |
| GPIO_3 | Multi-function I/O | Configurable as SYNCDCDC input to synchronize switching frequency across multiple PMUs - critical for EMI reduction in multi-rail systems. |
| INT | Interrupt output | Open-drain signal indicating thermal warning, short-circuit event, or ADC threshold breach - triggers immediate host processor response. |
| VCC_SENSE | System supply monitor | Analog input for GPADC measurement of VSYS - enables real-time input voltage validation and brownout detection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase SMPS combining | SMPS1 and SMPS2 can be configured as a single 7-A rail with interleaved switching - cuts output ripple by >50% vs. single-phase operation. |
| OTP-based power sequencing | Factory-programmed startup/shutdown order eliminates boot dependency on host firmware - ensures safe, repeatable power delivery. |
| Dynamic Voltage Scaling (DVS) | Hardware- and software-controlled DVS on 3.5-A and 3-A SMPS rails - enables real-time processor performance/power tuning without SW intervention. |
| Thermal shutdown & warning | Integrated die temperature monitoring with programmable high-temp warning and hard thermal shutdown at 150°C - prevents permanent damage under overload. |
| Eco-mode operation | Automatic pulse-frequency modulation (PFM) activation below ~30% load - reduces light-load quiescent current to <90 μA in Sleep Mode. |
Applications
| Automotive Digital Cluster | ADAS Domain Controller |
|---|---|
Use Scenario: Centralized instrument cluster with LCD display, microcontroller, and CAN/FlexRay communication ICs requiring tightly sequenced, low-noise, and thermally robust power rails. IC Role / Device Role / Timing Role: Primary PMU managing core SoC voltage (SMPS1/2), display backlight (SMPS3), I/O peripherals (SMPS4), and analog sensors (LDO5/LDOVRTC). Use Value: OTP sequencing ensures deterministic boot before display initialization; 12-bit GPADC monitors rail health and die temperature in real time. |
Use Scenario: Multi-camera, radar, and sensor fusion domain controller operating in harsh under-hood environments with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: System-level power hub delivering 7-A dual-phase core voltage, isolated low-noise analog supply (LDO5), and synchronized clocks for timing-critical vision processors. Use Value: External clock sync (GPIO_3) aligns SMPS switching across multiple PMUs - suppresses beat frequencies and improves system-level EMC compliance. |
| Automotive Navigation System | In-Vehicle Infotainment (IVI) Head Unit |
Use Scenario: GPS-enabled navigation module with touch interface, audio codec, and cellular modem requiring independent, low-quiescent LDOs and dynamically scalable core voltage. IC Role / Device Role / Timing Role: Integrated power solution supplying application processor (SMPS1/2), memory (SMPS3), audio subsystem (LDO1/LDO2), and RTC backup (LDOVRTC). Use Value: Bypass-capable 300-mA LDOs deliver clean, low-noise power to audio codecs; Eco-mode extends battery runtime during GPS-only tracking. |
Use Scenario: High-performance IVI head unit with quad-core application processor, HDMI output, and multi-zone audio processing - demanding coordinated rail ramp rates and fault containment. IC Role / Device Role / Timing Role: Centralized power sequencer enabling staggered startup of GPU, DSP, and display controller rails while monitoring overcurrent via POWERGOOD signals. Use Value: Three programmable digital outputs embedded in OTP sequence allow custom logic handshaking with companion MCUs or FPGAs during boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65917-Q1 | Three 3-A SMPS (no dual-phase), no GPADC, only two LDOs (300-mA, 200-mA), smaller 6×6 mm package | Targeted at cost-optimized ADAS camera modules with simpler power tree and no need for thermal or voltage telemetry | Select when system requires lower channel count, reduced telemetry, and smaller footprint - not suitable for dual-phase or ADC-dependent designs. |
| MAX20029ATG/V+T | Four 3-A SMPS (no dual-phase), integrated watchdog, 10-bit ADC, 5 LDOs (including 500-mA), TQFN-40 package | Optimized for infotainment head units needing higher LDO current and watchdog safety features but lacking differential sensing or OTP sequencing | Choose when prioritizing LDO current headroom and functional safety features over precision sequencing and EMI-controlled synchronization. |
Compared with TPS65917-Q1 and MAX20029ATG/V+T, the O919A14ETRGZRQ1 uniquely combines dual-phase 7-A capability, OTP-configurable sequencing, and 12-bit GPADC telemetry - making it the only option among the three for thermally constrained, EMI-sensitive automotive clusters requiring full-system health monitoring and deterministic boot.
Availability
O919A14ETRGZRQ1 is available at Aetrix Electronics and suitable for automotive digital clusters, ADAS domain controllers, and navigation systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.
Supply support for O919A14ETRGZRQ1 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 automotive ICs - with decades of expertise in high-reliability power management solutions.
The O919A14ETRGZRQ1 belongs to TI's automotive-qualified PMU product line, engineered specifically for next-generation automotive infotainment and ADAS platforms requiring integrated, sequenced, and telemetry-rich power delivery.
FAQ
What is the package type and thermal pad configuration for O919A14ETRGZRQ1?
O919A14ETRGZRQ1 uses a VQFN-48 (RGZ) package measuring 7.00 mm × 7.00 mm with 0.5-mm pitch and an exposed thermal pad (PGND) on the bottom. This pad must be soldered to a PCB thermal plane for proper junction temperature control - TI specifies 12°C/W θJA with 1-in² 2-oz copper and 4 thermal vias.
Does O919A14ETRGZRQ1 support dynamic voltage scaling (DVS) on all SMPS rails?
O919A14ETRGZRQ1 supports hardware- and software-controlled DVS only on the two 3.5-A SMPS rails (SMPS1 and SMPS2) and the 3-A SMPS rail (SMPS3). The 1.5-A SMPS4 does not support DVS. DVS registers are accessible via SPI or the dedicated DVS I²C interface.
How is power sequencing controlled on O919A14ETRGZRQ1?
Power sequencing on O919A14ETRGZRQ1 is controlled by factory-programmed one-time programmable (OTP) memory, enabling fully autonomous startup without host firmware. Static settings like voltage levels and GPIO states can be modified via SPI or I²C, but the core sequence order and timing are OTP-locked for reliability.
Can O919A14ETRGZRQ1 synchronize its SMPS switching frequency to an external clock?
Yes - O919A14ETRGZRQ1 supports external clock synchronization via the GPIO_3 pin, accepting input frequencies from 1.7 MHz to 2.7 MHz. This feature enables multi-PMU synchronization to eliminate beat frequencies and improve system-level EMC performance in complex automotive ECUs.
What protection features are integrated into O919A14ETRGZRQ1?
O919A14ETRGZRQ1 integrates short-circuit protection on all SMPS and LDO outputs, thermal shutdown at 150°C, high-temperature warning interrupt, OTP bit-integrity error detection, and voltage-monitoring thresholds for VSYS brownout. Each SMPS also includes internal soft-start and power-good indication with overcurrent detection.
O919A14ETRGZRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Processor
- Current - Supply:
- -
- Voltage - Supply:
- 3.135V ~ 5.25V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
O919A14ETRGZRQ1 FAQ
1.How can I place an order for O919A14ETRGZRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for O919A14ETRGZRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for O919A14ETRGZRQ1 reliable?
The price and inventory of O919A14ETRGZRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for O919A14ETRGZRQ1 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for O919A14ETRGZRQ1 transactions.
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4.How is shipping managed for O919A14ETRGZRQ1?
O919A14ETRGZRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your O919A14ETRGZRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for O919A14ETRGZRQ1?
For technical support, including O919A14ETRGZRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your O919A14ETRGZRQ1 requirements.
6.How does Aetrix verify that O919A14ETRGZRQ1 is sourced from the original manufacturer or authorized distributors?
All O919A14ETRGZRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that O919A14ETRGZRQ1 meets industry standards.
7.What is the process for return or replacement of O919A14ETRGZRQ1?
All O919A14ETRGZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with O919A14ETRGZRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The O919A14ETRGZRQ1 part is unused and in its original packaging.
Return procedure for O919A14ETRGZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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