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Texas Instruments TPS53830RWZR
- Part No.:
- TPS53830RWZR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 35-QFN
- Datasheet:
-
TPS53830RWZR.pdf
- Description:
- HIGH CURRENT PMIC FOR DDR5 SERVE
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
TPS53830RWZR from Texas Instruments is a 3-output (expandable to 4) digital step-down converter optimized for DDR5 on-DIMM power delivery, delivering 12 A at 1.1 V (VDD), 6 A at 1.1 V (VDDQ), and 5 A at 1.8 V (VPP) with D-CAP+™ control, I²C/I³C telemetry, and differential remote sensing. It operates from 4.5 V to 15 V input across –40°C to +105°C in a 5 mm × 5 mm 35-pin QFN package.
For engineers reviewing the TPS53830RWZR datasheet, TPS53830RWZR pinout, TPS53830RWZR application, or TPS53830RWZR equivalent, key selection criteria include per-phase current limiting, programmable switching frequency (500 kHz–1.375 MHz), internal loop compensation, persistent black-box register, and thermal robustness for high-density server DIMM modules.
Technical Context
The TPS53830RWZR integrates three synchronous buck regulators (SWA/SWB/SWC/SWD) with independent feedback paths and differential remote sense for VDD, VDDQ, and VPP rails. Its D-CAP+™ architecture enables sub-100 ns transient response without external compensation components.
It supports dual-phase operation on VDD (12 A total) or split 6 A/6 A outputs, while VDDQ and VPP operate as single-phase rails. Telemetry via I²C/I³C includes real-time voltage, current, temperature, power, and fault status - all backed by overvoltage, undervoltage, overcurrent, and overtemperature protections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 15 V - supports wide-range server mid-rail supplies including 5 V, 12 V, and hybrid inputs. |
| Output Configuration | 3 fixed outputs (VDD/VDDQ/VPP); optional 4th output (VDD2) - enables flexible DDR5 power tree partitioning. |
| Max Output Current | VDD: 12 A (dual-phase), VDDQ: 6 A, VPP: 5 A - meets JEDEC DDR5 on-DIMM current requirements per rail. |
| Switching Frequency | 500 kHz to 1.375 MHz - adjustable for EMI optimization and efficiency trade-off in dense DIMM layouts. |
| Control Mode | D-CAP+™ - delivers fast load-transient response (<100 ns) without external compensation network. |
| Interface | I²C and I³C - enables bidirectional telemetry and dynamic configuration in DDR5 memory subsystems. |
| Operating Temperature | –40°C to +105°C - qualified for industrial-grade DIMM thermal environments under sustained load. |
Pinout & Package
TPS53830RWZR is housed in a thermally enhanced 5.0 mm × 5.0 mm, 35-pin VQFN-HR (RWZ) package with exposed PowerPad™ for improved heat dissipation and low-inductance ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 4.5–15 V input; connects to bulk capacitor and upstream DC/DC stage. |
| SWA / SWB / SWC / SWD | Power switch node terminals | Drive external high-side MOSFETs or integrated FETs for VDD, VDD2, VDDQ, and VPP outputs respectively. |
| BOOT_SWA–SWD | Bootstrap supply pins | Provide gate drive voltage for high-side FETs; require 0.1 µF ceramic bootstrap capacitors. |
| SWAB_FB_P/N, SWC_FB_P/N, SWD_FB_P/N | Differential remote sense inputs | Enable Kelvin sensing of VDD, VDDQ, VPP at DRAM pins - critical for tight DDR5 voltage tolerance (±3%). |
| SCL / SDA | I²C/I³C bus interface | Support standard/fast-mode I²C (100/400 kHz) and I³C (12.5 MHz) for telemetry and configuration. |
| TS | Internal die temperature monitor | Provides analog voltage output proportional to junction temperature for system-level thermal management. |
| PGND / AGND | Power and analog ground returns | Separate ground planes required to minimize noise coupling into sensitive feedback and telemetry paths. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Remote Sensing | Independent Kelvin connections for VDD, VDDQ, and VPP ensure ±3% regulation accuracy at DRAM pins despite PCB IR drop. |
| Persistent Register (Black Box) | Nonvolatile storage of last-fault telemetry (voltage, current, temp, error code) - enables post-failure root-cause analysis without host intervention. |
| Per-Phase Cycle-by-Cycle Current Limit | Hardware-based overcurrent protection on each phase prevents FET failure during short-circuit or startup faults. |
| Programmable Internal Loop Compensation | Eliminates external compensation components and simplifies layout while maintaining stability across output capacitor ESR/ESL variations. |
| Thermally Enhanced RWZ Package | 35-pin VQFN-HR with PowerPad™ achieves ≤30°C/W θJA - sustains full 12 A output in constrained DIMM space. |
Applications
| DDR5 Server DIMM Power | High-Density Memory Modules |
|---|---|
Use Scenario: Powering DDR5 DRAM chips on enterprise server memory modules where strict JEDEC voltage tolerances and fast transient response are mandatory. IC Role / Device Role / Timing Role: Primary triple-rail power controller managing VDD (1.1 V), VDDQ (1.1 V), and VPP (1.8 V) with telemetry and fault logging. Use Value: Enables compliance with DDR5 VDD/VDDQ ±3% and VPP ±5% specs under 20 A/µs load steps via D-CAP+™ control and differential sensing. | Use Scenario: Compact, high-current power solution for RDIMMs and LRDIMMs with limited board area and thermal headroom. IC Role / Device Role / Timing Role: Integrated digital PMIC replacing discrete multi-IC solutions to reduce BOM count and improve layout density. Use Value: Reduces solution footprint by >40% versus discrete controllers while supporting 4-output expansion for future DDR5 variants. |
| Memory Subsystem Telemetry | Thermally Constrained DIMM Designs |
Use Scenario: Real-time monitoring of rail voltages, currents, temperatures, and fault states in cloud data center memory systems. IC Role / Device Role / Timing Role: I²C/I³C telemetry hub providing telemetry data to memory controller or BMC for predictive maintenance. Use Value: Delivers millisecond-resolution telemetry without host CPU overhead - enabling dynamic throttling and lifetime estimation. | Use Scenario: Maintaining stable DDR5 operation in high-ambient-temperature rack environments (>85°C ambient). IC Role / Device Role / Timing Role: Thermally robust power converter with –40°C to +105°C rating and integrated die temperature sensor (TS pin). Use Value: Prevents thermal shutdown during sustained 100% memory bandwidth workloads via accurate junction monitoring and derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DDR5 on-DIMM power delivery applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99390HRZ-T | Single 12 A output (VDD only); no native VDDQ/VPP support; requires companion ICs for full DDR5 rail set. | Limited to VDD-only applications or designs using separate controllers for VDDQ/VPP. | Choose when only VDD regulation is needed or when modular power design allows distributed control. |
| MP2960GQW-Z | 4-output analog controller (no I²C/I³C telemetry); lacks persistent black-box register and differential VPP sensing. | Suitable for cost-sensitive DDR5 clients but not for telemetry-driven server platforms requiring fault forensics. | Prefer when telemetry and post-fault diagnostics are non-critical and analog control suffices. |
Compared with ISL99390HRZ-T and MP2960GQW-Z, the TPS53830RWZR uniquely integrates full 3-rail DDR5 regulation, differential sensing on all outputs, I³C telemetry, and black-box logging - making it the only single-chip solution qualified for JEDEC-compliant server DIMMs requiring full rail autonomy and diagnostics.
Availability
TPS53830RWZR is available at Aetrix Electronics and suitable for DDR5 server DIMMs, high-density memory modules, and memory subsystem telemetry applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS53830RWZR 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 designing analog, embedded processing, and power management ICs for industrial, automotive, and computing applications.
The TPS53830RWZR belongs to TI's DDR5-specific power management portfolio, engineered to replace multi-chip power solutions with a single, digitally configurable, telemetry-enabled IC for next-generation server memory.
FAQ
What is the maximum supported switching frequency for the TPS53830RWZR?
The TPS53830RWZR supports a programmable switching frequency range from 500 kHz to 1.375 MHz. This range allows designers to optimize between efficiency (lower frequency) and component size/EMI performance (higher frequency), particularly important in space-constrained DIMM layouts. The frequency is configured via I²C/I³C registers and remains stable across line, load, and temperature variations.
Does the TPS53830RWZR support DDR5 VPP rail requirements?
Yes, the TPS53830RWZR explicitly supports the DDR5 VPP rail with a dedicated 5 A output at 1.8 V, featuring differential remote sensing (SWD_FB_P/N) and independent overvoltage/undervoltage protection. Its VPP regulation meets JEDEC JESD209-5B specification for ±5% tolerance under dynamic load conditions, verified in TI's reference design TIDA-01630.
How does the persistent register (black box) function in the TPS53830RWZR?
Upon fault detection (e.g., overtemperature, overcurrent), the TPS53830RWZR automatically stores timestamped telemetry - including VDD/VDDQ/VPP voltages, phase currents, die temperature, and error flags - into a nonvolatile register. This black-box data persists through power cycles and is readable via I²C/I³C, enabling forensic analysis without host software intervention. The register holds up to 16 fault events.
Can the TPS53830RWZR be configured for four independent outputs?
Yes, the TPS53830RWZR supports a 4-output configuration: VDD1 (6 A), VDD2 (6 A), VDDQ (6 A), and VPP (5 A). This mode splits the dual-phase VDD capability into two independent 6 A rails, enabling support for emerging DDR5 configurations requiring separate VDD1/VDD2 domains. Configuration is performed via I²C/I³C register writes during initialization.
What package type and thermal characteristics does the TPS53830RWZR use?
TPS53830RWZR uses the VQFN-HR (RWZ) package: 5.0 mm × 5.0 mm, 35-pin, with exposed PowerPad™. Its thermal resistance is θJA = 29.5°C/W (JEDEC JESD51-7, 4-layer board), enabling full 12 A output in typical DIMM airflow conditions. The package is RoHS-compliant, MSL Level-2, and rated for –40°C to +105°C operation.
TPS53830RWZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 35-QFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, DDR
- Voltage - Input:
- 4.5V ~ 15V
- Number of Outputs:
- 3
- Voltage - Output:
- 1.1V, 1.1V, 1.8V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 35-VQFN-HR (5x5)
TPS53830RWZR FAQ
1.How can I place an order for TPS53830RWZR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS53830RWZR 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 TPS53830RWZR reliable?
The price and inventory of TPS53830RWZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS53830RWZR is usually 5 days.
3.What payment methods are accepted for TPS53830RWZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS53830RWZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS53830RWZR?
TPS53830RWZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS53830RWZR 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 TPS53830RWZR?
For technical support, including TPS53830RWZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS53830RWZR requirements.
6.How does Aetrix verify that TPS53830RWZR is sourced from the original manufacturer or authorized distributors?
All TPS53830RWZR 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 TPS53830RWZR meets industry standards.
7.What is the process for return or replacement of TPS53830RWZR?
All TPS53830RWZR units undergo pre-shipment inspection (PSI). If there is an issue with TPS53830RWZR, 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 TPS53830RWZR part is unused and in its original packaging.
Return procedure for TPS53830RWZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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