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Texas Instruments TPS54260MDRCTEP
- Part No.:
- TPS54260MDRCTEP
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS54260MDRCTEP.pdf
- Description:
- IC REG BUCK ADJ 2.5A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:831
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Product details
Overview
TPS54260MDRCTEP from Texas Instruments is a radiation-hardened, 3.5-V to 60-V input, 2.5-A synchronous step-down DC/DC converter with integrated 200-mΩ high-side MOSFET, Eco-mode™ pulse-skipping control, and 138-μA no-load quiescent current. It delivers regulated 3.3-V or 5-V outputs in automotive infotainment, ADAS domain controllers, and industrial 24-V power rails.
For engineers reviewing the TPS54260MDRCTEP datasheet, TPS54260MDRCTEP pinout, TPS54260MDRCTEP application, or TPS54260MDRCTEP equivalent, key selection factors include its extended temperature range (–55°C to 125°C), RT/CLK synchronization capability, PWRGD open-drain power-good signal, and dual-package availability (VSON-10 and HVSSOP-10).
Technical Context
The TPS54260MDRCTEP implements peak-current-mode control with internal slope compensation to ensure stability across 0–100% duty cycle. Its Eco-mode™ operation clamps COMP at 500 mV during light loads, enabling pulse skipping and reducing switching losses while maintaining regulation via the 0.8-V reference.
It integrates a bootstrap UVLO circuit monitoring BOOT–PH voltage (threshold: 2.1 V) and features a PLL-based RT/CLK pin supporting both resistor-set frequency (100–2500 kHz) and external clock synchronization (300–2200 kHz). The PWRGD comparator asserts low for VSENSE outside 94–107% of nominal output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 60 V - supports direct connection to unregulated 12-V/24-V/48-V industrial and automotive battery rails without pre-regulation. |
| Output Current | 2.5 A continuous - sufficient for powering microcontrollers, FPGAs, and sensor interfaces in harsh-environment systems. |
| Quiescent Current | 138 μA at no load - enables always-on subsystems (e.g., wake-up logic) without excessive battery drain. |
| Switching Frequency | 100 kHz to 2.5 MHz - allows optimization of inductor size (e.g., 4.7 μH at 500 kHz) and efficiency across load conditions. |
| Reference Voltage | 0.8 V ±2% - sets precise output via external resistor divider; supports 3.3 V, 5 V, and other custom outputs with <±1% accuracy. |
| Power-Good Threshold | 94% to 107% of VOUT - provides reliable system reset signaling with built-in hysteresis; open-drain PWRGD requires external pull-up. |
| Shutdown Current | 1.3 μA - ensures ultra-low leakage during deep sleep or fault shutdown, critical for long-life battery-powered modules. |
| Thermal Shutdown | 182°C - protects against sustained overload or poor heatsinking in sealed enclosures without requiring external thermal management. |
Pinout & Package
TPS54260MDRCTEP is supplied in a 10-pin 3-mm × 3-mm VSON package (DRC) with exposed thermal pad. Pin numbering follows top-view orientation; Pin 1 is BOOT, Pin 10 is PH. The thermal pad must be soldered to a PCB copper pour for thermal and electrical grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects to 0.1-μF ceramic capacitor between BOOT and PH; supplies gate drive voltage for internal high-side MOSFET. |
| GND | Signal and power ground | Reference for all analog circuits; must be tied to thermal pad and low-impedance PCB ground plane. |
| COMP | Error amplifier output | Interface for Type II/III compensation network; connects to feedback loop output to stabilize voltage regulation. |
| VSENSE | Inverting input of error amplifier | Monitors output voltage via resistor divider; compares against 0.8-V reference to regulate output. |
| VIN | Main power input | Accepts 3.5–60 V; powers internal bias circuits and high-side driver; requires local 10-μF ceramic input capacitor. |
| EN | Enable / UVLO control | Pull below 1.2 V to disable; float or tie to VIN for enable; supports adjustable UVLO using two external resistors. |
| RT/CLK | Frequency set / sync input | Resistor-to-GND sets fSW (100–2500 kHz); external clock edges (300–2200 kHz) synchronize switching to system timing. |
| SS/TR | Slow-start / tracking control | Capacitor sets soft-start time; voltage override enables power sequencing with other rails or processors. |
| PWRGD | Open-drain power-good output | Asserts low when VOUT deviates >6% from target; requires external pull-up resistor to system rail (e.g., 10 kΩ to 3.3 V). |
| PH | High-side switch source | Connects to inductor and output filter; carries full switching current; must be routed with short, wide copper traces. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse skipping | Reduces no-load input current to 138 μA by disabling switching cycles while maintaining output regulation-critical for battery-backed systems. |
| Integrated boot diode | Eliminates need for external bootstrap diode; simplifies layout and improves reliability in high-vibration environments like automotive chassis mounts. |
| Adjustable UVLO with hysteresis | EN pin supports resistor-divider configuration to raise turn-on threshold above 2.5 V and add hysteresis-prevents brownout oscillation during battery sag. |
| Synchronization capability | RT/CLK pin accepts external clock (300–2200 kHz) to align switching edges with system clocks-reduces EMI in multi-rail systems. |
| Overvoltage protection | PWRGD comparator triggers high-side MOSFET shutdown if VOUT exceeds 109% of nominal-limits transient overvoltage stress on downstream ICs. |
| Thermally enhanced VSON | 3-mm × 3-mm package with exposed thermal pad achieves RθJB = 8°C/W-enables 2.5-A operation at 125°C ambient without heatsink. |
Applications
| Automotive Infotainment Power | Industrial 24-V DC-DC Conversion |
|---|---|
Use Scenario: Powering head-unit SoCs, display drivers, and audio codecs from vehicle battery (9–16 V) with cold-crank immunity. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 3.3-V/5-V rails; PWRGD signals MCU reset upon undervoltage. Use Value: 60-V max input withstands load-dump transients up to 65 V; Eco-mode extends battery life during standby mode. |
Use Scenario: Converting 24-V factory bus to 5-V for PLC I/O modules and fieldbus gateways operating in ambient up to 85°C. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator; RT/CLK synchronized to PLC master clock to minimize conducted EMI. Use Value: 200-mΩ MOSFET enables >90% efficiency at 2 A; thermal pad design sustains full load at elevated ambient temperatures. |
| ADAS Domain Controller Supply | Aerospace Remote I/O Node |
Use Scenario: Providing clean, sequenced 1.2-V and 3.3-V supplies to radar processor and camera interface ASICs in autonomous driving ECUs. IC Role / Device Role / Timing Role: Secondary buck stage with SS/TR tracking to match FPGA core voltage ramp; PWRGD enables safe boot sequence. Use Value: Adjustable slow-start prevents inrush into large output capacitance; 138-μA quiescent current meets ASIL-B low-power requirements. |
Use Scenario: Powering radiation-tolerant microcontrollers and isolated CAN transceivers in satellite payload telemetry units. IC Role / Device Role / Timing Role: Radiation-hardened (EP grade) buck converter operating from 28-V spacecraft bus; EN pin used for remote power cycling. Use Value: –55°C to 125°C operation and controlled baseline manufacturing ensure reliability in vacuum and thermal cycling environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QPWPRQ1 | 4.5–65 V input, 1.5-A output, 1.1-MHz fixed frequency; no Eco-mode; higher IQ (40 μA) | Lacks pulse-skipping; better suited for constant medium-load applications where EMI predictability outweighs light-load efficiency. | Select when strict EMI spectral control is required and load rarely drops below 100 mA. |
| TPS54360BMDRCTEP | Same EP-grade package and pinout; 3.5–60 V, 3.5-A output; 100-kHz to 2.5-MHz; 145-μA IQ | Higher current rating and identical feature set; shares same layout footprint but requires larger inductor and output capacitor. | Choose when future-proofing for 3-A peak loads or upgrading legacy TPS54260 designs without board rework. |
Compared with LM5164QPWPRQ1 and TPS54360BMDRCTEP, the TPS54260MDRCTEP uniquely balances 2.5-A capability, ultra-low 138-μA quiescent current, and full Eco-mode functionality in a space-constrained VSON package-making it optimal for thermally demanding, intermittently active systems.
Availability
TPS54260MDRCTEP is available at Aetrix Electronics and suitable for automotive infotainment, industrial 24-V power conversion, and aerospace remote I/O node applications requiring stable component supply across extended temperature and radiation-hardened environments.
Supply support for TPS54260MDRCTEP 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 power management ICs, with decades of experience in automotive, industrial, and aerospace markets.
The TPS54260MDRCTEP belongs to TI's EP (Enhanced Product) family-engineered for defense, aerospace, and medical applications with controlled baseline, extended temperature range (–55°C to 125°C), and full traceability.
FAQ
What is the maximum input voltage rating for the TPS54260MDRCTEP?
The TPS54260MDRCTEP has an absolute maximum input voltage rating of 65 V on the VIN pin, with recommended continuous operation from 3.5 V to 60 V. This allows robust operation in automotive and industrial environments where load dump or line transients may exceed nominal bus voltage.
How does the Eco-mode™ control scheme improve efficiency in the TPS54260MDRCTEP?
The TPS54260MDRCTEP enters Eco-mode™ when load current drops below the pulse-skip threshold-clamping COMP at 500 mV and disabling switching cycles. This reduces gate drive and switching losses, achieving 138-μA no-load quiescent current and extending battery life in standby applications without sacrificing regulation accuracy.
Can the TPS54260MDRCTEP synchronize its switching frequency to an external clock?
Yes-the RT/CLK pin of the TPS54260MDRCTEP supports external clock synchronization in the 300–2200 kHz range. When driven above the PLL upper threshold (1.9–2.2 V), the internal oscillator disables and the pin becomes a high-impedance clock input, enabling deterministic EMI reduction in multi-converter systems.
What is the function of the PWRGD pin on the TPS54260MDRCTEP?
The PWRGD pin on the TPS54260MDRCTEP is an open-drain output that deasserts (pulls high via external resistor) only when VSENSE is within 94–107% of the nominal output voltage. It provides system-level power-good signaling for MCU reset, FPGA configuration enable, or sequencer handshaking.
Does the TPS54260MDRCTEP require an external bootstrap diode?
No-the TPS54260MDRCTEP integrates the bootstrap diode internally. A single 0.1-μF X7R/X5R ceramic capacitor between BOOT and PH is sufficient to provide gate drive voltage for the high-side MOSFET, reducing BOM count and improving reliability in vibration-prone applications.
TPS54260MDRCTEP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 10-VFDFN 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):
- 3.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 60V
- Current - Output:
- 2.5A
- Frequency - Switching:
- 100kHz ~ 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS54260MDRCTEP FAQ
1.How can I place an order for TPS54260MDRCTEP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54260MDRCTEP 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 TPS54260MDRCTEP reliable?
The price and inventory of TPS54260MDRCTEP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54260MDRCTEP is usually 5 days.
3.What payment methods are accepted for TPS54260MDRCTEP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54260MDRCTEP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54260MDRCTEP?
TPS54260MDRCTEP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54260MDRCTEP 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 TPS54260MDRCTEP?
For technical support, including TPS54260MDRCTEP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54260MDRCTEP requirements.
6.How does Aetrix verify that TPS54260MDRCTEP is sourced from the original manufacturer or authorized distributors?
All TPS54260MDRCTEP 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 TPS54260MDRCTEP meets industry standards.
7.What is the process for return or replacement of TPS54260MDRCTEP?
All TPS54260MDRCTEP units undergo pre-shipment inspection (PSI). If there is an issue with TPS54260MDRCTEP, 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 TPS54260MDRCTEP part is unused and in its original packaging.
Return procedure for TPS54260MDRCTEP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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