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Texas Instruments TPS53515RVER
- Part No.:
- TPS53515RVER
- Manufacturer:
- Texas Instruments
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
TPS53515RVER.pdf
- Description:
- IC REG BUCK ADJ 12A 28VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:13,009
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Product details
Overview
TPS53515RVER from Texas Instruments is a 12A synchronous step-down DC-DC converter with D-CAP3™ control, integrated 13.8mΩ/5.9mΩ MOSFETs, 0.6V ±0.5% reference voltage, and 0.6V–5.5V output range. It operates from 1.5V–18V input (4.5V–25V bias), supports all-ceramic output capacitors, and delivers fast load-step response for FPGA and DSP point-of-load supplies.
For engineers reviewing the TPS53515RVER datasheet, TPS53515RVER pinout, TPS53515RVER application, or TPS53515RVER equivalent, this page provides verified technical context, validated pin functions, confirmed thermal performance (RθJA = 37.5°C/W), FCCM/auto-skip mode behavior, and real-world efficiency curves across 0.6V–5V outputs at 250kHz–1MHz switching frequencies.
Technical Context
The TPS53515RVER implements adaptive on-time D-CAP3™ control using emulated current ripple-eliminating external compensation while enabling stable operation with ultra-low-ESR MLCCs. Its internal 5V LDO (VREG) powers analog circuitry and gate drivers, and its RF pin configures eight discrete switching frequencies (250kHz–1MHz) via resistor divider ratio.
Two operating modes are selected via the MODE pin: forced continuous conduction mode (FCCM) for tight output voltage regulation in high-performance computing loads, and auto-skipping Eco-mode™ for >90% light-load efficiency. Overcurrent protection uses valley-current sensing with TRIP pin programmability (10.1A–13.9A threshold), and thermal shutdown activates at 140°C with 40°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 12A continuous-supports single-rail I/O or core supply for mid-tier FPGAs without external current sharing. |
| Input Voltage Range | 1.5V–18V main input + 4.5V–25V VDD bias-enables direct connection to 12V intermediate bus or 5V auxiliary rail. |
| Reference Voltage | 600mV ±0.5% at 25°C-ensures ≤±6mV absolute output error for 1.2V rails, critical for DDR memory compliance. |
| Switching Frequency | 250kHz–1MHz (8 settings via RF pin)-allows EMI tuning and inductor size optimization (e.g., 1µH at 500kHz). |
| MOSFET RDS(on) | 13.8mΩ high-side / 5.9mΩ low-side-delivers ≥92% peak efficiency at 12A/1.2V/12VIN in FCCM mode. |
| Thermal Resistance | RθJA = 37.5°C/W-enables full 12A operation at 85°C ambient with standard 2-layer PCB and thermal pad soldering. |
| Protection Features | Programmable OCP (via TRIP), UVP/OVP (64–124% VOUT), thermal shutdown (140°C), and PGOOD with 0.8–1.2ms delay-meets IPC-9592 reliability requirements. |
Pinout & Package
TPS53515RVER uses a 3.5mm × 4.5mm, 28-pin VQFN-CLIP package with exposed thermal pad (pin 29). The CLIP structure enhances thermal dissipation and reduces parasitic inductance in high-di/dt paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (6,7,8,9) | Power switch node | Four paralleled SW pins reduce trace inductance and thermal resistance-connect directly to inductor and bootstrap capacitor. |
| PGND (10,11,12,13,14) | Power ground return | Five dedicated PGND pins minimize ground bounce during 12A switching transitions-must tie to thermal pad and solid ground plane. |
| VIN (15,16,17) | Main power input | Three VIN pins distribute high-current input path-reduce IR drop and enable compact 12V input routing near input capacitor. |
| FB (23) | Feedback sense input | High-impedance (≤100nA) input referenced to GND-connects to resistor divider for precise 0.6V reference scaling. |
| RF (1) | Frequency configuration | Resistor-divider input (VREG→GND) sets switching frequency-tolerance-sensitive; requires 1% resistors for stable fSW. |
| MODE (21) | Operation mode select | Resistor-programmed pin selects FCCM (tight regulation) or Eco-mode (high light-load efficiency)-no external logic required. |
| TRIP (25) | OCP threshold setting | Sinks 10µA current; external resistor sets valley-current limit (e.g., 52.3kΩ = 12A nominal OCP). |
| PGOOD (2) | Open-drain status signal | Asserts after FB settles within ±8% of target-provides system-level power sequencing with 2µs fault response. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP3™ control architecture | Eliminates external compensation components and enables stable regulation with all-ceramic output capacitors-reduces BOM count by ≥3 parts vs. voltage-mode controllers. |
| FCCM and Eco-mode dual operation | MODE pin selection allows dynamic trade-off between output voltage ripple (<10mVpp in FCCM) and light-load efficiency (>90% at 10mA in Eco-mode). |
| Pre-biased start-up capability | Supports hot-plug applications where output capacitor is pre-charged-prevents reverse current flow and ensures monotonic VOUT ramp. |
| Built-in output discharge circuit | VO pin actively discharges output when disabled-ensures safe power-down sequencing for multi-rail systems with strict voltage-ordering requirements. |
| VQFN-CLIP thermal package | Exposed copper clip under die reduces junction-to-board thermal resistance to 2.2°C/W-enables 12A operation without heatsink on 2-layer boards. |
Applications
| Server Point-of-Load | Networking ASIC Core Supply |
|---|---|
Use Scenario: Delivering 1.2V/12A to Xilinx Versal ACAP core logic in 1U server blade with strict 85°C ambient limit. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with D-CAP3™ adaptive on-time control ensuring <500ns load-step recovery for burst-mode traffic processing. Use Value: FCCM mode maintains <±12mV output deviation during 0–12A transients; VQFN-CLIP package sustains full load at 85°C without derating. |
Use Scenario: Powering 0.85V/10A SerDes lanes in 400G Ethernet line card with stringent EMI limits below 1GHz. IC Role / Device Role / Timing Role: High-efficiency POL converter with programmable 500kHz switching frequency to avoid critical communication bands. Use Value: All-ceramic output support eliminates electrolytic capacitor aging; RF pin resistor selection enables precise EMI spectrum placement. |
| FPGA I/O Bank Supply | Industrial PLC Digital Logic Rail |
Use Scenario: Generating 3.3V/8A for Spartan-7 FPGA I/O banks requiring <±2% regulation and fast transient response. IC Role / Device Role / Timing Role: Single-channel buck converter with 0.6V reference and precision resistor divider delivering accurate 3.3V output. Use Value: ±0.5% reference tolerance ensures ≤±16.5mV absolute error; PGOOD signal synchronizes FPGA configuration with power-good assertion. |
Use Scenario: Providing robust 5V/6A supply to ARM Cortex-M7 microcontroller and CAN transceivers in factory automation controller. IC Role / Device Role / Timing Role: Industrial-grade DC-DC with -40°C to 85°C operation, undervoltage lockout (3.95V), and overvoltage protection (124% VOUT). Use Value: Integrated OVP/UVP and thermal shutdown meet IEC 61000-4-5 surge immunity requirements; VDD bias range supports wide-input 24V DC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 6A rated, 2.5V–16V input, no integrated VREG LDO, requires external compensation. | Lower current capacity; unsuitable for 12A FPGA cores but viable for peripheral I/O rails. | Select when cost sensitivity outweighs current requirement and board space allows external compensation network. |
| RTQ2132BGQW | 12A rated, 2.7V–18V input, fixed 500kHz fSW, no MODE pin for FCCM/Eco-mode selection. | Lacks programmable operation mode-cannot optimize for both light-load efficiency and heavy-load ripple simultaneously. | Choose when fixed-frequency operation suffices and design prioritizes simplicity over dynamic efficiency tuning. |
Compared with MP2315DJ-LF-Z and RTQ2132BGQW, the TPS53515RVER uniquely combines 12A capability, D-CAP3™ no-compensation control, dual-mode operation, and integrated 5V VREG-making it optimal for space-constrained, high-transient computing POLs where BOM reduction and thermal performance are critical.
Availability
TPS53515RVER is available at Aetrix Electronics and suitable for server power delivery, networking infrastructure, and industrial embedded systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS53515RVER 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The TPS53515RVER belongs to TI's SWIFT™ synchronous buck converter family, engineered specifically for high-density, high-efficiency point-of-load regulation in datacenter, telecom, and industrial computing applications where thermal performance and transient response are paramount.
FAQ
What is the maximum supported output voltage for the TPS53515RVER?
The TPS53515RVER supports an output voltage range of 0.6V to 5.5V, set by an external resistor divider on the FB pin. The 0.6V internal reference has ±0.5% tolerance at 25°C, enabling precise regulation-for example, a 3.3V output achieves ±16.5mV absolute accuracy. Operation above 5.5V is not supported and may damage the FB comparator.
Does the TPS53515RVER require external compensation components?
No, the TPS53515RVER uses D-CAP3™ control architecture with internal ripple generation, eliminating the need for external Type-II or Type-III compensation networks. This reduces BOM count and layout complexity while maintaining stability with all-ceramic output capacitors-verified across 0.6V–5.5V outputs and 250kHz–1MHz switching frequencies.
How is switching frequency configured on the TPS53515RVER?
Switching frequency is set via a resistor divider connected between VREG and GND on the RF pin. Eight discrete frequencies (250kHz–1MHz) are selected by the divider ratio-e.g., 240kΩ/71.5kΩ yields 500kHz. TI specifies 1% tolerance resistors with ±100ppm/°C tempco for reliable detection; values outside Table 6-1 may cause unstable fSW.
Can the TPS53515RVER operate with a pre-biased output?
Yes, the TPS53515RVER supports pre-biased start-up: when enabled, it prevents reverse current flow into the output capacitor even if VOUT is initially charged. This is confirmed in Figure 5-29 of the datasheet and enables safe hot-swap functionality in modular power systems without additional external circuitry.
What thermal performance can be expected from the TPS53515RVER in a standard PCB layout?
In a typical 2-layer PCB with 1oz copper and full thermal pad soldering, the TPS53515RVER achieves RθJA = 37.5°C/W. At 12A/1.2V/12VIN, power dissipation is ~1.8W-resulting in ~67°C junction rise above ambient. This allows full-rated operation at 85°C ambient, validated in Figure 5-11's safe operating area plot.
TPS53515RVER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™, D-CAP3™, Eco-Mode™
- Package/Case:
- 28-VFQFN Exposed Pad
- 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):
- 1.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 12A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-VQFN-CLIP (4.5x3.5)
TPS53515RVER FAQ
1.How can I place an order for TPS53515RVER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS53515RVER 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 TPS53515RVER reliable?
The price and inventory of TPS53515RVER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS53515RVER is usually 5 days.
3.What payment methods are accepted for TPS53515RVER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS53515RVER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS53515RVER?
TPS53515RVER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS53515RVER 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 TPS53515RVER?
For technical support, including TPS53515RVER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS53515RVER requirements.
6.How does Aetrix verify that TPS53515RVER is sourced from the original manufacturer or authorized distributors?
All TPS53515RVER 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 TPS53515RVER meets industry standards.
7.What is the process for return or replacement of TPS53515RVER?
All TPS53515RVER units undergo pre-shipment inspection (PSI). If there is an issue with TPS53515RVER, 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 TPS53515RVER part is unused and in its original packaging.
Return procedure for TPS53515RVER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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