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Texas Instruments TPS54360QDDAQ1
- Part No.:
- TPS54360QDDAQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54360QDDAQ1.pdf
- Description:
- IC REG BCK SPLIT RAIL ADJ 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:676
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Product details
Overview
TPS54360QDDAQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 4.5-V to 60-V input, 3.5-A synchronous step-down DC-DC converter with integrated 92-mΩ high-side MOSFET, Eco-Mode™ pulse-skipping for 146-μA no-load quiescent current, and adjustable 100-kHz to 2.5-MHz switching frequency. It delivers regulated 3.3-V or 5-V power in vehicle GPS, ADAS, and USB charging ports.
For engineers reviewing the TPS54360QDDAQ1 datasheet, TPS54360QDDAQ1 pinout, TPS54360QDDAQ1 application, or TPS54360QDDAQ1 equivalent, key selection considerations include its 65-V load dump survival, internal 0.8-V ±1% reference, BOOT-recharge FET for low-dropout operation, RT/CLK synchronization capability, and thermal shutdown at 176°C.
Technical Context
The TPS54360QDDAQ1 implements fixed-frequency peak current-mode control with slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its error amplifier features 350-μS transconductance during normal operation and reduced 77-μS gain during soft-start.
It integrates a PLL-based RT/CLK pin supporting both resistor-programmed frequency (100–2500 kHz) and external clock synchronization (160–2300 kHz), plus frequency foldback during overcurrent and startup to maintain loop stability. The BOOT-SW UVLO circuit monitors bootstrap voltage and enables automatic recharge via an integrated low-side FET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 60 V - supports 12-V, 24-V, and 48-V automotive and industrial rails; survives ISO 7637 load dump pulses up to 65 V. |
| Output Current | 3.5 A continuous - delivered via integrated 92-mΩ high-side n-channel MOSFET; current limit threshold is 5.5 A typical. |
| Switching Frequency | 100 kHz to 2.5 MHz - adjustable via RT resistor or external clock; enables optimization of efficiency vs. size of output filter components. |
| Quiescent Current | 146 μA in Eco-Mode™ - reduces system standby power in always-on vehicle accessories; drops to 2 μA in shutdown. |
| Reference Voltage | 0.8 V ±1% - precision internal bandgap reference enabling accurate output regulation across –40°C to 125°C ambient. |
| UVLO Threshold | 4.3 V rising, 4.1 V falling - internally set with 325-mV hysteresis; adjustable via external resistor divider on EN pin. |
| Thermal Shutdown | 176°C with 12°C hysteresis - protects IC and external components during overload or poor heatsinking conditions. |
Pinout & Package
TPS54360QDDAQ1 uses an 8-pin SO PowerPAD™ package (4.89 mm × 3.90 mm) with exposed thermal pad electrically connected to GND for enhanced thermal performance. The PowerPAD must be soldered to a PCB copper pour for proper junction-to-board thermal resistance (θJB = 23.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects to SW via 0.1-μF ceramic capacitor to generate gate drive voltage for high-side MOSFET; monitored by internal UVLO. |
| COMP | Error amplifier output | Drives PWM comparator; connects to RC compensation network between COMP and GND for loop stability. |
| EN | Enable & UVLO control | Pull below 1.2 V to disable; float or bias with resistor divider to adjust input UVLO threshold and hysteresis. |
| FB | Feedback input | Inverting input of transconductance error amplifier; sets output voltage via resistor divider referenced to 0.8-V internal reference. |
| GND | Power and signal ground | Common return path; exposed thermal pad must be electrically tied to PCB GND plane for thermal management. |
| RT/CLK | Frequency programming/sync | Resistor-to-GND sets switching frequency; pulled above 1.55 V to enter external clock sync mode with PLL lock. |
| SW | Switching node | Source of internal high-side MOSFET; connects to external inductor and BOOT capacitor; carries high di/dt switching current. |
| VIN | Main input supply | Accepts 4.5–60 V; powers internal bias circuits and high-side gate driver; includes internal 4.3-V UVLO. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-Mode™ pulse skipping | Reduces no-load IQ to 146 μA by disabling switching while maintaining regulation via controlled burst mode. |
| Integrated BOOT recharge FET | Enables >99% duty cycle operation without external diode; automatically recharges BOOT capacitor during low-side conduction. |
| Adjustable UVLO with hysteresis | Internal 4.3-V start threshold with 325-mV hysteresis; externally programmable via EN pin resistor divider for system-level brownout control. |
| Synchronization capability | RT/CLK pin accepts external clock (160–2300 kHz) with PLL lock-in time <78 μs; eliminates beat frequencies in multi-rail systems. |
| Overvoltage transient protection | OVP comparator disables high-side MOSFET if output exceeds 106% of target; prevents damage to downstream 3.3-V/5-V loads. |
Applications
| Vehicle GPS & Telematics | ADAS Camera Power Supply |
|---|---|
Use Scenario: Powering GPS modules, eCall units, and infotainment head units in 12-V automotive electrical systems with wide input transients. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 3.3-V or 5-V rail; handles ISO 7637 load dump pulses up to 65 V without external protection. Use Value: Eliminates need for external TVS or discrete high-voltage MOSFETs; 146-μA Eco-Mode™ extends battery life during vehicle sleep mode. | Use Scenario: Supplying image sensors and SerDes interfaces in forward-facing ADAS cameras requiring low-noise, ripple-controlled 1.8-V or 2.8-V rails. IC Role / Device Role / Timing Role: Step-down converter with precise 0.8-V reference and tight FB pin input current (50 nA) minimizing divider error; supports synchronized switching to avoid EMI in sensor timing paths. Use Value: Enables clean power delivery with <1% output tolerance across –40°C to 125°C; RT/CLK sync avoids interference with MIPI clock domains. |
| USB Dedicated Charging Port | Industrial 24-V Motor Control Logic Supply |
Use Scenario: Providing 5-V/1.5-A power to USB BC1.2-compliant charging ports in automotive docking stations and aftermarket accessories. IC Role / Device Role / Timing Role: Constant-frequency buck controller with adjustable switching frequency (300–600 kHz typical) to optimize inductor size and EMI filtering for compact enclosures. Use Value: Integrated 92-mΩ MOSFET achieves >90% efficiency at full load; soft-start limits inrush into large USB port capacitance. | Use Scenario: Generating isolated 5-V logic supply from noisy 24-V motor drive bus in PLC I/O modules and servo drives. IC Role / Device Role / Timing Role: High-input-voltage buck regulator surviving motor commutation spikes; thermal shutdown (176°C) protects during stall conditions. Use Value: 60-V max input rating avoids external pre-regulator; PowerPAD package enables reliable operation at 85°C ambient without forced air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDAQ1 | 4.5–65-V input, 1-A output, 1.5-MHz max fSW, no integrated BOOT diode; requires external bootstrap diode. | Lower output current; suited for auxiliary rails where 3.5-A is excessive; higher max frequency enables smaller magnetics. | Select when lower cost and smaller solution size outweigh need for 3.5-A output and integrated BOOT recharge. |
| MPQ4363GQ-AEC1 | 3.8–60-V input, 3.5-A output, 2.2-MHz max fSW, 110-mΩ RDS(on), no Eco-Mode™; 180-μA IQ in skip mode. | Similar current rating but higher RDS(on) reduces full-load efficiency; lacks pulse-skip Eco-Mode™, limiting ultra-low-IQ performance. | Select when board space is constrained and 2.2-MHz operation is preferred, accepting trade-off in light-load efficiency. |
Compared with LM5164QDDAQ1 and MPQ4363GQ-AEC1, TPS54360QDDAQ1 uniquely combines 3.5-A capability, integrated BOOT recharge FET, 146-μA Eco-Mode™ IQ, and AEC-Q100 Grade 1 qualification-making it optimal for primary power rails in safety-critical automotive subsystems where reliability and low standby power are mandatory.
Availability
TPS54360QDDAQ1 is available at Aetrix Electronics and suitable for vehicle accessories, ADAS camera modules, and industrial 24-V motor control logic supplies requiring stable component supply across extended temperature and automotive lifecycle requirements.
Supply support for TPS54360QDDAQ1 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 designing analog ICs, embedded processors, and system solutions for automotive, industrial, and personal electronics markets.
TPS54360QDDAQ1 belongs to TI's automotive-grade DC-DC converter product line, engineered specifically for harsh automotive environments-including load dump, cold crank, and extended temperature operation-with integrated protection and AEC-Q100 qualification.
FAQ
What is the maximum input voltage the TPS54360QDDAQ1 can withstand during load dump events?
The TPS54360QDDAQ1 is rated for 65-V absolute maximum input voltage per ISO 7637-2 Pulse 5a load dump testing. Its internal circuitry and robust 92-mΩ high-side MOSFET allow it to survive these transients without external clamping components, making it suitable for direct connection to automotive battery rails.
How does the TPS54360QDDAQ1 achieve low dropout operation near 100% duty cycle?
The TPS54360QDDAQ1 achieves low dropout via an integrated BOOT recharge FET that actively pulls SW low to refresh the BOOT capacitor when BOOT-SW voltage falls below 2.1 V. This eliminates need for an external diode and enables effective duty cycles approaching 100%, allowing output voltages close to minimum input (e.g., 5-V out from 5.5-V in).
What is the purpose of the RT/CLK pin on the TPS54360QDDAQ1, and how does it operate in dual modes?
The RT/CLK pin on the TPS54360QDDAQ1 serves two functions: (1) as a resistor-programmed frequency input (100–2500 kHz) when pulled below 1.2 V, and (2) as a high-impedance external clock sync input (160–2300 kHz) when pulled above 1.55 V. An internal PLL locks to the external clock edge, enabling deterministic phase alignment across multiple converters.
Does the TPS54360QDDAQ1 support output voltage adjustment, and what is the accuracy of its internal reference?
Yes, the TPS54360QDDAQ1 supports output voltage adjustment using an external resistor divider on the FB pin. Its internal voltage reference is 0.8 V with ±1% accuracy over –40°C to 125°C junction temperature and full input voltage range, ensuring precise regulation for 3.3-V, 5-V, or custom output rails.
What protection features are integrated into the TPS54360QDDAQ1 to ensure automotive reliability?
The TPS54360QDDAQ1 integrates undervoltage lockout (4.3-V rising threshold), overvoltage transient protection (OVP trips at 106% of setpoint), thermal shutdown (176°C with 12°C hysteresis), current limiting (5.5-A typical), and frequency foldback during overload. All protections are AEC-Q100 qualified and designed for automotive-grade fault resilience.
TPS54360QDDAQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck, Split Rail
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 58.8V
- Current - Output:
- 3.5A
- Frequency - Switching:
- 100kHz ~ 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
TPS54360QDDAQ1 FAQ
1.How can I place an order for TPS54360QDDAQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54360QDDAQ1 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 TPS54360QDDAQ1 reliable?
The price and inventory of TPS54360QDDAQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54360QDDAQ1 is usually 5 days.
3.What payment methods are accepted for TPS54360QDDAQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54360QDDAQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54360QDDAQ1?
TPS54360QDDAQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54360QDDAQ1 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 TPS54360QDDAQ1?
For technical support, including TPS54360QDDAQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54360QDDAQ1 requirements.
6.How does Aetrix verify that TPS54360QDDAQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54360QDDAQ1 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 TPS54360QDDAQ1 meets industry standards.
7.What is the process for return or replacement of TPS54360QDDAQ1?
All TPS54360QDDAQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54360QDDAQ1, 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 TPS54360QDDAQ1 part is unused and in its original packaging.
Return procedure for TPS54360QDDAQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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