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Texas Instruments TPS53820RWZT
- Part No.:
- TPS53820RWZT
- Manufacturer:
- Texas Instruments
- Package:
- 35-PowerVQFN
- Datasheet:
-
TPS53820RWZT.pdf
- Description:
- IC REG BUCK ADJ 5.5A 35VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
TPS53820RWZT from Texas Instruments is a dual-output, SVID-compliant integrated step-down converter for Intel® CPU power delivery, supporting VCCANA (5.5 A) and P1V8 (4 A) rails with D-CAP+™ control, 4.5–15 V input range, and I²C telemetry for voltage/current/temperature monitoring.
For engineers reviewing the TPS53820RWZT datasheet, TPS53820RWZT pinout, TPS53820RWZT application, or TPS53820RWZT equivalent, this device serves as a production-ready, thermally enhanced POL solution for low-current SVID rails in Intel server platforms requiring fast transient response, differential remote sensing, and programmable loop compensation.
Technical Context
The TPS53820RWZT implements D-CAP+™ mode control to deliver sub-100 ns load-step response without external compensation components, while supporting both SVID and I²C interfaces for dynamic voltage scaling and real-time telemetry reporting.
It integrates two independent buck channels with per-phase cycle-by-cycle current limiting, differential remote sense inputs (AVSP/AVSN, BVSP/BVSN), and programmable switching frequency (800 kHz–2 MHz) synchronized via internal PLL architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 15 V - supports wide-input industrial and server supply rails including 12 V and 3.3 V intermediate bus architectures. |
| Output Current Capability | VCCANA: 5.5 A; P1V8: 4 A - enables single-chip dual-rail support for Intel VR13.HC low-current SVID domains. |
| Control Mode | D-CAP+™ - provides zero-external-compensation fast transient performance ideal for CPU core auxiliary rail dynamics. |
| Switching Frequency | Programmable 800 kHz to 2 MHz - allows optimization of efficiency vs. size trade-offs and EMI filtering requirements. |
| Interface Support | SVID + I²C - enables full Intel-compatible voltage command protocol plus telemetry readback of output voltage, current, power, and die temperature. |
| Operating Temperature | –40°C to 125°C - qualified for extended thermal environments in dense server and embedded compute applications. |
| Protection Features | OVP, OCP, OTP - includes hardware-based fault detection with ALERT# assertion and automatic shutdown recovery behavior. |
Pinout & Package
TPS53820RWZT uses a thermally enhanced 5 mm × 5 mm, 35-pin VQFN-HR (RWZ) package with exposed PowerPAD™ for improved thermal dissipation in high-power-density server PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply | Accepts 4.5–15 V input; powers internal LDOs and high-side drivers for both buck stages. |
| SWA1 / SWB | Power switch nodes | Connect to external high-side MOSFET sources (integrated FETs); define phase interleaving timing for ripple reduction. |
| BOOT_SWA1 / BOOT_SWB | Bootstrap gate drive | Supplies floating gate drive voltage for integrated high-side N-channel MOSFETs during switching cycles. |
| AVSP / AVSN / BVSP / BVSN | Differential remote sense | Enables precise regulation at point-of-load by compensating for IR drop across PCB traces for VCCANA and P1V8 outputs. |
| I2C_CLK / I2C_DIO / I2C_ALERT# | I²C system interface | Supports bidirectional telemetry communication at standard/fast-mode speeds; ALERT# signals fault conditions asynchronously. |
| SVID Interface Pins (ADDR, EN1, EN2, etc.) | Intel SVID bus | Directly connects to CPU SVID controller for VID code interpretation, enable sequencing, and status reporting per VR13.HC spec. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP+™ Control Architecture | Eliminates need for external compensation network while maintaining stability across capacitor ESR variations and load transients. |
| Dual Independent Output Rails | Simultaneously delivers regulated VCCANA (5.5 A) and P1V8 (4 A) from single IC-reducing BOM count and layout area vs. discrete solutions. |
| Integrated Telemetry Reporting | Real-time readback of output voltage, current, power, and junction temperature via I²C-enabling predictive thermal management and health monitoring. |
| Programmable Loop Compensation | Configurable via I²C register writes to adapt control loop bandwidth and phase margin for varying output capacitor types and values. |
| Thermally Optimized QFN Package | 35-pin VQFN-HR with PowerPAD™ achieves ≤3.5°C/W θJA in typical 4-layer board layout-critical for sustained 9.5 A total output current capability. |
Applications
| Intel Server VCCANA Rail | Intel Server P1V8 Rail |
|---|---|
Use Scenario: Powering analog I/O circuitry on Intel Xeon® Scalable processor daughter cards where tight voltage accuracy and low noise are required. IC Role / Device Role / Timing Role: Primary SVID POL regulator delivering stable 1.8 V ±0.5% at up to 4 A with differential remote sensing. Use Value: Enables compliance with Intel VR13.HC specification for P1V8 rail including fast VID transitions and telemetry reporting. | Use Scenario: Supplying analog reference and PLL circuitry for CPU core voltage domains in 1U rack-mount servers. IC Role / Device Role / Timing Role: Dual-phase SVID POL providing 5.5 A at VCCANA with cycle-by-cycle current limiting and thermal foldback. Use Value: Maintains <1% output deviation under 3 A/µs load steps-critical for analog subsystem stability during CPU frequency scaling. |
| Low-Power Edge AI Accelerator | Industrial Embedded Controller |
Use Scenario: Powering vision processing unit (VPU) analog front-end in compact edge inference modules with space-constrained PCBs. IC Role / Device Role / Timing Role: Compact dual-rail DC/DC converter replacing discrete controllers and external MOSFETs to reduce footprint by >40%. Use Value: Achieves >92% peak efficiency at 3 A load while meeting EN55022 Class B conducted EMI limits without shielding. | Use Scenario: Regulating auxiliary supplies for FPGA configuration, memory interface, and sensor signal conditioning in ruggedized industrial PLCs. IC Role / Device Role / Timing Role: Robust POL with over-temperature lockout and -40°C to 125°C operation ensuring reliability in uncontrolled ambient environments. Use Value: Eliminates need for external thermal sensors and discrete protection ICs-reducing system-level BOM cost and validation effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output SVID POL applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53679RSBT | Single-output, higher current (70 A), supports multiphase SVID with external drivers; no integrated telemetry ADC. | Targeted at main CPU core VDD rail-not auxiliary rails like VCCANA/P1V8. | Select when designing for high-current VR13/VR14 core rails requiring external FETs and phase interleaving. |
| ISL95815IRZ | Single-output SVID controller (no integrated FETs); requires external high-side/low-side MOSFETs and gate drivers. | Lacks integrated telemetry and dual-rail capability; limited to one regulated output. | Choose when flexibility in MOSFET selection and custom thermal design outweighs integration benefits of TPS53820RWZT. |
Compared with TPS53679RSBT and ISL95815IRZ, the TPS53820RWZT uniquely combines dual integrated outputs, on-die telemetry, and D-CAP+™ control in a single 5×5 mm package-making it optimal for space-constrained, low-current SVID auxiliary rail designs where simplicity and measurement fidelity are prioritized over ultra-high current scalability.
Availability
TPS53820RWZT is available at Aetrix Electronics and suitable for Intel server platform development, edge AI accelerator power design, and industrial embedded controller applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS53820RWZT 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 company specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in high-reliability power conversion solutions.
The TPS53820RWZT belongs to TI's SVID-compliant POL regulator product line, engineered specifically for low-current Intel CPU auxiliary rails-including VCCANA and P1V8-where fast transient response, telemetry visibility, and minimal external component count are critical.
FAQ
What is the primary function of the TPS53820RWZT in Intel CPU power systems?
The TPS53820RWZT functions as a dual-output, SVID-compliant point-of-load regulator delivering precisely controlled VCCANA (5.5 A) and P1V8 (4 A) rails for Intel VR13.HC server processors. Its integrated D-CAP+™ control, differential remote sensing, and I²C telemetry make the TPS53820RWZT essential for maintaining voltage accuracy and system health monitoring in modern CPU power architectures.
Does the TPS53820RWZT support both SVID and I²C interfaces simultaneously?
Yes, the TPS53820RWZT supports concurrent SVID and I²C operation: SVID handles real-time voltage command and enable sequencing from the CPU, while I²C provides read-only telemetry access to output voltage, current, power, and die temperature. This dual-interface capability ensures full compatibility with Intel VR13.HC specifications and enables system-level diagnostics without interfering with SVID timing constraints.
What package type and thermal characteristics does the TPS53820RWZT use?
The TPS53820RWZT uses a 5 mm × 5 mm, 35-pin VQFN-HR (RWZ) package with an exposed PowerPAD™ thermal pad. In a standard 4-layer JEDEC board layout, it achieves a junction-to-ambient thermal resistance (θJA) of ≤3.5°C/W, enabling reliable operation at full rated current across the –40°C to 125°C ambient temperature range specified for the TPS53820RWZT.
Can the TPS53820RWZT operate without external compensation components?
Yes, the TPS53820RWZT employs D-CAP+™ control architecture that eliminates the need for external compensation networks. Its internal programmable loop compensation can be configured via I²C registers to maintain stability across different output capacitor types and values-reducing design complexity and bill-of-materials count for the TPS53820RWZT implementation.
What protection features are integrated into the TPS53820RWZT?
The TPS53820RWZT integrates hardware-based over-voltage protection (OVP), over-current protection (OCP) with per-phase cycle-by-cycle limiting, and over-temperature protection (OTP). Fault conditions trigger immediate shutdown and assert the open-drain ALERT# pin, allowing host systems to log events and initiate recovery-ensuring robust operation of the TPS53820RWZT in mission-critical server and industrial applications.
TPS53820RWZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 35-PowerVQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- 5.5A
- Frequency - Switching:
- 800kHz ~ 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 35-VQFN-HR (5x5)
TPS53820RWZT FAQ
1.How can I place an order for TPS53820RWZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS53820RWZT 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 TPS53820RWZT reliable?
The price and inventory of TPS53820RWZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS53820RWZT is usually 5 days.
3.What payment methods are accepted for TPS53820RWZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS53820RWZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS53820RWZT?
TPS53820RWZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS53820RWZT 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 TPS53820RWZT?
For technical support, including TPS53820RWZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS53820RWZT requirements.
6.How does Aetrix verify that TPS53820RWZT is sourced from the original manufacturer or authorized distributors?
All TPS53820RWZT 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 TPS53820RWZT meets industry standards.
7.What is the process for return or replacement of TPS53820RWZT?
All TPS53820RWZT units undergo pre-shipment inspection (PSI). If there is an issue with TPS53820RWZT, 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 TPS53820RWZT part is unused and in its original packaging.
Return procedure for TPS53820RWZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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