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Texas Instruments TPS53311EVM-561
- Part No.:
- TPS53311EVM-561
- Manufacturer:
- Texas Instruments
- Package:
- Datasheet:
-
TPS53311EVM-561.pdf
- Description:
- EVAL BOARD FOR TPS53311
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
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Product details
Overview
TPS53311EVM-561 from Texas Instruments is an evaluation module built around two TPS53311 3-A synchronous buck converters operating in master-slave interleaved configuration, delivering regulated 1.5-V/3-A (master) and 1.2-V/3-A (slave) outputs from a 3.3-V or 5-V input bus. It supports Eco-mode™ operation, 1.1-MHz fixed switching frequency, and provides test points for loop gain, ripple, transient, and synchronization analysis in low-voltage point-of-load applications.
For engineers reviewing the TPS53311EVM-561 datasheet, TPS53311EVM-561 test setup, TPS53311EVM-561 jumper configuration, or TPS53311EVM-561 thermal performance, this EVM enables rapid validation of dual-rail power delivery with synchronized phase control, efficiency benchmarking, and stability characterization under FCCM/DE/HEF mode selection.
Technical Context
The TPS53311EVM-561 implements a dual-output, master-slave interleaved architecture using two identical TPS53311RGT QFN-16 ICs - one configured as master (1.5 V), the other as slave (1.2 V). Synchronization is achieved via dedicated SYNC signals (TP12/TP20), enabling 180° phase offset to reduce input/output ripple and improve thermal distribution.
Jumper-selectable modes (J2/J7) support FCCM, Discontinuous Conduction Mode (DE), and High Efficiency Mode (HEF); enable controls (J4/J9) allow independent on/off sequencing; and input voltage selection (J1) supports 3.3-V or 5-V operation. Test points (e.g., TP6/TP18 for SW nodes, TP1/TP2 for loop injection) are routed for direct measurement of critical waveforms and control-loop response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 6 V - supports standard 3.3-V or 5-V system rails with margin for droop and tolerance. |
| Output Voltages | 1.5 V ±15 mV (master), 1.2 V ±12 mV (slave) - tight regulation suitable for CPU core and I/O rail sequencing. |
| Max Output Current | 3 A per rail - sufficient for mid-power FPGA, ASIC, or SoC point-of-load requirements. |
| Switching Frequency | 1.1 MHz fixed - enables compact magnetics and high-frequency filtering while balancing efficiency and EMI. |
| Efficiency (1.5 V @ 3 A) | 88.82% @ 3.3-V input, 89.50% @ 5-V input - reflects Eco-mode™ optimization for light-to-full load transitions. |
| Output Ripple | 20 mVpp max (1.5 V/1.2 V, 3.3-V input, full load) - measured with tip-and-barrel probe method per JEDEC standards. |
| PCB Construction | 4-layer board with 2-oz copper on outer layers - enhances current handling and thermal dissipation for sustained 3-A operation. |
Availability
TPS53311EVM-561 is available at Aetrix Electronics and suitable for server power validation, notebook DC-DC design verification, and embedded PC point-of-load development requiring stable component supply, documented test methodology, and production-representative layout.
Supply support for TPS53311EVM-561 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 leadership in high-efficiency DC-DC conversion and evaluation platform design.
The TPS53311EVM-561 belongs to TI's Power Management Evaluation Modules product line, engineered to accelerate adoption of integrated FET buck regulators in space-constrained, multi-rail computing and networking systems.
FAQ
What is the primary function of the TPS53311EVM-561?
The TPS53311EVM-561 is an evaluation module designed to demonstrate and validate the performance of two TPS53311 synchronous buck converters operating in master-slave interleaved mode. It delivers 1.5-V/3-A and 1.2-V/3-A outputs from a single 3.3-V or 5-V input, supporting efficiency, thermal, ripple, and loop-stability measurements. The TPS53311EVM-561 enables engineers to characterize real-world behavior before integrating the TPS53311 into final designs.
Which input voltage options does the TPS53311EVM-561 support?
The TPS53311EVM-561 supports selectable 3.3-V or 5-V input via jumper J1: shorting pins 1–2 configures 3.3-V operation (default), while shorting pins 2–3 selects 5-V input. The input voltage range is specified from 2.9 V to 6 V, accommodating bus tolerances and transient excursions. This flexibility allows the TPS53311EVM-561 to emulate common system-level power sources during lab validation.
How is master-slave synchronization implemented on the TPS53311EVM-561?
Synchronization is enabled by default via jumper J5, which connects the master's SYNC output to the slave's SYNC input, enforcing 180° phase interleaving between the two TPS53311 converters. This reduces input capacitor RMS current and output voltage ripple while improving thermal balance. Removing the J5 jumper disables synchronization, allowing independent operation - a capability verified in Figure 10 and Figure 11 of the SLUU428A user's guide for the TPS53311EVM-561.
What test points are provided for loop gain measurement on the TPS53311EVM-561?
The TPS53311EVM-561 provides dedicated loop injection test points: TP1 (CHA_MST) and TP2 (CHB_MST) for the 1.5-V master output, and TP14 (CHA_SLV) and TP15 (CHB_SLV) for the 1.2-V slave output. These points support isolation transformer-based bode plot measurements per Section 6.2 of the user's guide, enabling direct assessment of phase margin and control-loop stability without modifying feedback networks on the TPS53311EVM-561.
Can the TPS53311EVM-561 be used to evaluate different operating modes of the TPS53311?
Yes - the TPS53311EVM-561 supports FCCM, Discontinuous Conduction Mode (DE), and High Efficiency Mode (HEF) via jumpers J2 (master) and J7 (slave), as detailed in Tables 3 and 4 of the SLUU428A user's guide. Each mode affects light-load efficiency, ripple profile, and audible noise characteristics. Mode selection is fully configurable before power-up, making the TPS53311EVM-561 ideal for comparative analysis of Eco-mode™ behavior across load conditions.
TPS53311EVM-561 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SmoothPWM™, Eco-Mode™
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 2 Non-Isolated Outputs
- Voltage - Output:
- -
- Current - Output:
- 1.2V, 1.5V
- Voltage - Input:
- 3A
- Regulator Topology:
- 2.9V ~ 6V
- Frequency - Switching:
- Buck
- Contents:
- 1.1MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- TPS53311
TPS53311EVM-561 FAQ
1.How can I place an order for TPS53311EVM-561 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS53311EVM-561 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 TPS53311EVM-561 reliable?
The price and inventory of TPS53311EVM-561 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS53311EVM-561 is usually 5 days.
3.What payment methods are accepted for TPS53311EVM-561?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS53311EVM-561 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS53311EVM-561?
TPS53311EVM-561 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS53311EVM-561 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 TPS53311EVM-561?
For technical support, including TPS53311EVM-561 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS53311EVM-561 requirements.
6.How does Aetrix verify that TPS53311EVM-561 is sourced from the original manufacturer or authorized distributors?
All TPS53311EVM-561 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 TPS53311EVM-561 meets industry standards.
7.What is the process for return or replacement of TPS53311EVM-561?
All TPS53311EVM-561 units undergo pre-shipment inspection (PSI). If there is an issue with TPS53311EVM-561, 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 TPS53311EVM-561 part is unused and in its original packaging.
Return procedure for TPS53311EVM-561:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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