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Texas Instruments TPS54560BQDDARQ1
- Part No.:
- TPS54560BQDDARQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54560BQDDARQ1.pdf
- Description:
- IC REG BCK SPLIT RAIL ADJ 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:1,566
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Product details
Overview
TPS54560BQDDARQ1 from Texas Instruments is a 4.5 V to 60 V input, 5 A synchronous step-down DC-DC converter with integrated 92 mΩ high-side MOSFET, Eco-mode™ pulse-skipping for light-load efficiency, 0.8 V ±1% internal reference, and adjustable UVLO. It operates in automotive environments up to 150°C junction temperature and survives ISO 7637 load dump pulses up to 65 V.
For engineers reviewing the TPS54560BQDDARQ1 datasheet, TPS54560BQDDARQ1 pinout, TPS54560BQDDARQ1 application, or TPS54560BQDDARQ1 equivalent, key selection considerations include its 100 kHz–2.5 MHz programmable switching frequency, BOOT-recharge FET enabling >99% duty cycle, current-mode control with external compensation, thermal shutdown at 176°C, and HSOP PowerPAD™ package optimized for automotive power rail conversion.
Technical Context
The TPS54560BQDDARQ1 implements constant-frequency peak current-mode control with an internal transconductance error amplifier (350 μA/V), slope compensation to prevent subharmonic oscillation above 50% duty cycle, and frequency foldback during overcurrent or soft-start. Its RT/CLK pin supports both resistor-programmed frequency (100–2500 kHz) and external clock synchronization via PLL.
It integrates a bootstrap recharge FET to maintain gate drive under low dropout conditions, monitors BOOT–SW voltage for UVLO protection, and uses a 0.8 V precision reference with 1% tolerance across –40°C to 150°C. Overvoltage transient protection disables the high-side switch when output exceeds 106% of regulation.
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/industrial rails with 65 V load dump survival |
| Output Current | 5 A continuous - enables single-chip 5 V/3.3 V conversion for ECUs, infotainment, and USB charging ports |
| Switching Frequency | 100 kHz to 2.5 MHz - allows optimization of inductor size vs. efficiency; synchronizable to external clock |
| Quiescent Current | 146 μA in Eco-mode - extends battery life in always-on vehicle systems without compromising startup speed |
| Reference Voltage | 0.8 V ±1% - ensures accurate output regulation across temperature and line/load variations |
| High-Side RDS(on) | 92 mΩ typical at VIN = 12 V - reduces conduction loss and thermal stress in high-current buck stages |
| UVLO Threshold | Internally set at 4.3 V rising, with adjustable hysteresis - prevents erratic startup during cold-crank or brownout events |
| Junction Temp Range | –40°C to 150°C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
Pinout & Package
TPS54560BQDDARQ1 is housed in an 8-terminal HSOP (High-Speed Small Outline Package) with exposed PowerPAD™ thermal pad (4.89 mm × 3.9 mm body). The PowerPAD must be soldered to a PCB thermal plane for proper thermal performance and electrical grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects to SW via 0.1 µF ceramic capacitor; supplies gate drive for high-side MOSFET; monitored for UVLO |
| VIN | Main input supply | Accepts 4.5–60 V; includes internal 4.3 V UVLO and 65 V absolute max rating for load dump robustness |
| EN | Enable and UVLO adjust | Pull below 1.2 V to disable; float or bias with resistor divider to raise UVLO threshold |
| RT/CLK | Frequency programming/sync | Resistor-to-GND sets fSW; external clock edges synchronize switching via internal PLL |
| FB | Feedback input | Inverting input of error amp; connects to resistor divider for output voltage setting (VOUT = 0.8 V × (1 + RH/RL)) |
| COMP | Error amplifier output | Connects to RC compensation network; controls PWM comparator; clamped at 600 mV in Eco-mode |
| GND | Power and signal ground | Common return for VIN, SW, and PowerPAD; must be low-impedance connection to thermal plane |
| SW | Switching node | Source of internal high-side MOSFET; connects to external inductor and BOOT capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse skipping | Reduces no-load quiescent current to 146 µA while maintaining regulated output and fast transient response |
| Integrated BOOT recharge FET | Enables >99% duty cycle operation without external diode; supports ultra-low dropout (e.g., 12 V → 11.5 V) |
| Adjustable UVLO with hysteresis | Allows custom start-up voltage (e.g., 9 V for engine cranking) and prevents oscillation near threshold |
| Current-mode control with slope compensation | Ensures stable operation at all duty cycles ≥50%; simplifies loop compensation with single-pole dominant pole |
| Overvoltage transient protection (OVP) | Disables high-side switch if output exceeds 106% of target, preventing damage to downstream 3.3 V/5 V logic |
| Internal soft-start | 2.1 ms (at 500 kHz) controlled ramp minimizes inrush current and output overshoot during power-up |
Applications
| Automotive ECU Power Supply | USB Dedicated Charging Port (DCP) |
|---|---|
Use Scenario: Powering microcontroller, CAN transceiver, and sensors in engine control unit under wide input (6–16 V) and high ambient temperature. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 5 V or 3.3 V from battery rail; handles load dump, cold crank, and thermal stress. Use Value: 150°C junction rating and 65 V load dump survival ensure uninterrupted operation; Eco-mode extends sleep-mode battery life. | Use Scenario: Providing 5 V @ 1.5 A to USB ports in vehicle infotainment system with variable input (9–16 V). IC Role / Device Role / Timing Role: Constant-current/constant-voltage pre-regulator feeding USB PD or BC1.2 controller; manages dynamic load steps. Use Value: Adjustable UVLO prevents dropout during cranking; 5 A capability supports dual-port designs; SYNC enables noise-sensitive timing alignment. |
| Industrial Motor Drive Auxiliary Rail | 12 V to 3.3 V Point-of-Load Converter |
Use Scenario: Generating isolated 5 V supply for gate drivers and logic in 24 V/48 V motor control inverters. IC Role / Device Role / Timing Role: Non-isolated buck stage powering isolated DC-DC controllers and optocouplers; withstands EMI-rich motor drive environment. Use Value: 60 V input range accommodates bus transients; current-mode control rejects input ripple; thermal shutdown protects during stall conditions. | Use Scenario: Converting 12 V intermediate rail to clean 3.3 V for FPGA I/O banks or Ethernet PHY in networking equipment. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator with tight output regulation and low noise; supports dynamic voltage scaling. Use Value: 0.8 V ±1% reference and low COMP node impedance enable <±1% output accuracy; 2.5 MHz option minimizes inductor size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | 4.5–65 V input, 1.5 A, 1.5 MHz max fSW, no Eco-mode, higher RDS(on) (220 mΩ) | Better suited for lower-current, higher-frequency designs where footprint is critical but light-load efficiency is secondary | Select when 1.5 A output suffices and smaller solution size outweighs quiescent current requirements |
| TPS54360BQDDARQ1 | Same family, 3.5 A output, identical pinout and features except reduced current rating and slightly lower RDS(on) (110 mΩ) | Drop-in replacement where 3.5 A is sufficient; shares same layout, compensation, and thermal design | Choose for cost-sensitive or lower-power automotive modules requiring proven layout reuse |
Compared with LM5164QDDARQ1, TPS54560BQDDARQ1 delivers 5 A with lower RDS(on) and Eco-mode for superior light-load efficiency; versus TPS54360BQDDARQ1, it provides +1.5 A headroom and enhanced thermal margin for demanding under-hood loads.
Availability
TPS54560BQDDARQ1 is available at Aetrix Electronics and suitable for automotive ECU power supplies, USB charging ports, industrial motor drive auxiliary rails, and 12 V to 3.3 V point-of-load converters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TPS54560BQDDARQ1 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 headquartered in Dallas, Texas, designing analog and embedded processing chips for industrial, automotive, and communications markets.
The TPS54560B-Q1 product line delivers AEC-Q100 qualified DC-DC converters for automotive power systems, emphasizing high input voltage tolerance, thermal robustness, and functional safety readiness in harsh environments.
FAQ
What is the maximum input voltage the TPS54560BQDDARQ1 can withstand during load dump events?
The TPS54560BQDDARQ1 is designed to survive load dump pulses up to 65 V per ISO 7637-2, with an absolute maximum input voltage rating of 65 V. Its internal circuitry remains functional and undamaged under these transient conditions, making it suitable for direct connection to automotive battery rails without additional TVS clamping in many implementations.
Does the TPS54560BQDDARQ1 require an external bootstrap diode?
No, the TPS54560BQDDARQ1 integrates a bootstrap recharge FET, eliminating the need for an external bootstrap diode. This reduces component count and PCB area while enabling reliable high-duty-cycle operation - for example, stepping 12 V down to 11.5 V - by automatically refreshing the BOOT capacitor when the high-side MOSFET is off.
How does Eco-mode™ improve efficiency at light loads in the TPS54560BQDDARQ1?
Eco-mode™ in the TPS54560BQDDARQ1 reduces switching activity at light loads by entering pulse-skipping mode when output regulation is maintained and peak switch current falls below ~1.2 A (corresponding to 600 mV on COMP). This lowers no-load quiescent current to 146 µA, significantly extending battery runtime in always-on automotive systems without sacrificing regulation accuracy or transient response.
Can the TPS54560BQDDARQ1 synchronize its switching frequency to an external clock source?
Yes, the TPS54560BQDDARQ1 supports external clock synchronization via its RT/CLK pin. When driven with a TTL/CMOS-compatible clock signal exceeding the internal PLL thresholds (1.55–2 V high, 0.5–1.2 V low), the device disables its internal oscillator and locks its switching edge to the falling edge of the external clock, reducing EMI in noise-sensitive systems like infotainment or ADAS.
What thermal management is required for the TPS54560BQDDARQ1 in automotive applications?
The TPS54560BQDDARQ1 requires soldering its exposed PowerPAD™ thermal pad to a dedicated PCB copper pour connected to internal ground planes. With θJA = 42.0°C/W on a standard board, maintaining junction temperature ≤150°C demands adequate copper area, possible airflow, and derating at high ambient temperatures - especially critical in under-hood deployments where ambient may reach 105°C.
TPS54560BQDDARQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 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
TPS54560BQDDARQ1 FAQ
1.How can I place an order for TPS54560BQDDARQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54560BQDDARQ1 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 TPS54560BQDDARQ1 reliable?
The price and inventory of TPS54560BQDDARQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54560BQDDARQ1 is usually 5 days.
3.What payment methods are accepted for TPS54560BQDDARQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54560BQDDARQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54560BQDDARQ1?
TPS54560BQDDARQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54560BQDDARQ1 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 TPS54560BQDDARQ1?
For technical support, including TPS54560BQDDARQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54560BQDDARQ1 requirements.
6.How does Aetrix verify that TPS54560BQDDARQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54560BQDDARQ1 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 TPS54560BQDDARQ1 meets industry standards.
7.What is the process for return or replacement of TPS54560BQDDARQ1?
All TPS54560BQDDARQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54560BQDDARQ1, 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 TPS54560BQDDARQ1 part is unused and in its original packaging.
Return procedure for TPS54560BQDDARQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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