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Texas Instruments TPS54560QDDARQ1
- Part No.:
- TPS54560QDDARQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54560QDDARQ1.pdf
- Description:
- IC REG BCK SPLIT RAIL ADJ 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
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Product details
Overview
TPS54560QDDARQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified 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 146-μA quiescent current, adjustable 100-kHz–2.5-MHz switching frequency, and internal 0.8-V ±1% voltage reference - used in automotive ADAS power rails and industrial 24/48-V systems.
For engineers reviewing the TPS54560QDDARQ1 datasheet, TPS54560QDDARQ1 pinout, TPS54560QDDARQ1 application, or TPS54560QDDARQ1 equivalent, key selection considerations include load-dump survivability up to 65 V (ISO 7637), thermal shutdown at 176°C, BOOT-SW UVLO monitoring, RT/CLK pin dual-mode operation (resistor-set or external clock sync), and low-dropout capability enabled by integrated BOOT recharge FET.
Technical Context
The TPS54560QDDARQ1 implements fixed-frequency peak current-mode control with slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its transconductance error amplifier (350 μA/V normal, 77 μA/V during soft-start) drives the COMP pin to regulate output via external FB resistor divider referenced to 0.8 V.
It supports dual-mode RT/CLK pin operation: resistor-to-ground sets frequency from 100 kHz to 2.5 MHz, while external clock edges above 1.55 V trigger PLL synchronization. The integrated BOOT recharge FET enables near-100% duty cycle operation, and overvoltage protection disables the high-side MOSFET when output exceeds 106% of regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 60 V - supports wide automotive battery transients including ISO 7637 load dump up to 65 V. |
| Output Current | 5 A continuous - delivered via integrated 92-mΩ high-side n-channel MOSFET with thermal foldback protection. |
| Quiescent Current | 146 μA in Eco-Mode™ - enables ultra-low-power standby in always-on vehicle modules like eCall or GPS. |
| Switching Frequency | 100 kHz to 2.5 MHz - adjustable via RT/CLK pin; allows optimization of efficiency vs. size of output filter components. |
| Reference Voltage | 0.8 V ±1% - precise internal bandgap reference enabling accurate output setting across –40°C to 150°C TJ. |
| UVLO Threshold | 4.3 V rising (4.1–4.48 V range), 325 mV hysteresis - internally set but externally adjustable via EN pin resistor divider. |
| Thermal Shutdown | 176°C with 12°C hysteresis - protects device and system under overload or poor PCB thermal design. |
| Shutdown Current | 2 μA - ensures minimal battery drain when disabled in automotive sleep modes. |
Pinout & Package
TPS54560QDDARQ1 uses an 8-pin HSOIC PowerPAD™ package (3.90 mm × 4.89 mm) with exposed thermal pad electrically connected to GND for enhanced thermal performance (RθJC(bot) = 3.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Drives high-side MOSFET gate; requires 0.1-μF ceramic capacitor to SW; monitored for UVLO to prevent shoot-through. |
| VIN | Main input supply | Accepts 4.5–60 V; powers internal circuitry and high-side driver; withstands 65-V transients per ISO 7637. |
| GND | Power and signal ground | Common return for analog and power paths; thermal pad must be soldered to PCB ground plane for thermal integrity. |
| EN | Enable control input | Pull below 1.2 V to disable; internal 1.2-μA pull-up enables floating operation; supports adjustable UVLO with resistor divider. |
| RT/CLK | Frequency programming / sync input | Resistor-to-GND sets fSW (100 kHz–2.5 MHz); >1.55 V triggers PLL sync mode for external clock alignment. |
| FB | Feedback sensing input | Inverting input of error amplifier; connects to resistor divider from VOUT to set output voltage using 0.8-V reference. |
| COMP | Error amplifier output | Drives PWM comparator; connects to external compensation network (capacitor + series RC) for loop stability. |
| SW | Switching node | Source of internal high-side MOSFET and connection point for external inductor and catch diode/capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-Mode™ pulse skipping | Reduces no-load IQ to 146 μA by disabling switching until output droop triggers recovery - critical for automotive always-on systems. |
| Integrated BOOT recharge FET | Enables >95% duty cycle operation without external diode; eliminates need for discrete bootstrap diode and reduces BOM count. |
| Current-mode control with slope compensation | Ensures stable operation at duty cycles >50%; prevents subharmonic oscillation without requiring external ramp injection. |
| Overvoltage protection (OVP) | Disables high-side MOSFET if output exceeds 106% of target - prevents damage to downstream 5-V or 3.3-V logic rails. |
| Internal soft-start | Programmable 0.42–2.1 ms ramp (frequency-dependent) limits inrush current and eliminates output overshoot at startup. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±2000 V and CDM ±500 V ESD robustness - meets automotive reliability requirements. |
Applications
| Automotive ADAS Camera Power | USB Dedicated Charging Port (DCP) |
|---|---|
|
Use Scenario: Powering 12-V camera modules in forward-facing ADAS systems with cold-crank (4.5 V) and load-dump (65 V) immunity. IC Role / Device Role / Timing Role: Primary buck regulator delivering regulated 5-V/3.3-V rails; handles transient suppression and thermal management autonomously. Use Value: Survives ISO 7637 pulses without external TVS; 146-μA Eco-Mode extends battery life during vehicle sleep; 176°C thermal shutdown prevents field failures. |
Use Scenario: USB charging port in vehicle infotainment head unit supplying 5 V @ 2.4 A to mobile devices. IC Role / Device Role / Timing Role: High-efficiency step-down converter with adjustable frequency to avoid AM-band interference (100–2500 kHz). Use Value: 92-mΩ MOSFET enables >92% efficiency at 2 A; RT/CLK sync allows noise-free operation aligned to system clock; OVP protects connected devices. |
| Industrial 24-V Motor Control Auxiliary Supply | 48-V Telecom Shelf Management |
|
Use Scenario: Generating isolated 5-V/12-V bias rails for gate drivers and MCU in 24-V BLDC motor controllers. IC Role / Device Role / Timing Role: Compact, thermally robust DC-DC stage converting noisy 24-V bus to clean logic supplies; operates up to 150°C junction. Use Value: HSOIC PowerPAD package achieves RθJB = 23.4°C/W on 2-layer board; frequency foldback maintains control during stall-induced overloads. |
Use Scenario: Point-of-load conversion in 48-V telecom equipment powering FPGA I/O banks and SerDes supplies. IC Role / Device Role / Timing Role: Wide-input buck regulator supporting brownout (4.5 V) and surge (60 V) conditions in distributed power architecture. Use Value: Adjustable UVLO via EN pin prevents false turn-on during hot-swap; 0.8-V reference enables precise 1.2-V/1.8-V outputs with <1% tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | 4.5–65 V input, 0.6-A output, 1.5-MHz max fSW, lower current rating, no integrated BOOT FET. | Better suited for low-power auxiliary rails; lacks 5-A capability and Eco-Mode IQ for always-on systems. | Select when footprint and cost constrain 5-A requirement, and external BOOT diode is acceptable. |
| TPS54561QDDARQ1 | Identical 4.5–60 V / 5-A spec, but includes integrated 5-V LDO for bias supply - adds 100-mA auxiliary rail. | Eliminates need for separate bias IC in multi-rail systems; slightly higher quiescent current (155 μA vs. 146 μA). | Choose when a clean 5-V bias rail is required for external circuits, accepting minor IQ trade-off. |
Compared with LM5164QDDARQ1, TPS54560QDDARQ1 delivers 8.3× more output current and integrates BOOT recharge; versus TPS54561QDDARQ1, it offers lower IQ and smaller solution size where auxiliary LDO is unnecessary.
Availability
TPS54560QDDARQ1 is available at Aetrix Electronics and suitable for automotive ADAS, industrial motor control, and 48-V telecom power systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for TPS54560QDDARQ1 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 automotive-grade product development and manufacturing excellence.
The TPS54560-Q1 product line delivers high-voltage, high-current synchronous buck converters optimized for harsh automotive environments - designed to replace discrete high-side switch solutions with integrated, AEC-Q100-qualified power stages.
FAQ
What is the maximum input voltage the TPS54560QDDARQ1 can withstand without damage?
The TPS54560QDDARQ1 has an absolute maximum VIN rating of 65 V, allowing it to survive automotive load-dump transients per ISO 7637. Its recommended operating range is 4.5 V to 60 V. Exceeding 65 V risks permanent damage, and operation above 60 V is outside specified conditions even if below absolute max.
How does the TPS54560QDDARQ1 achieve low dropout operation near 100% duty cycle?
The TPS54560QDDARQ1 achieves low dropout via its integrated BOOT recharge FET, which actively pulls SW low to refresh the BOOT capacitor when BOOT-SW voltage falls below 2.1 V. This eliminates reliance on external diode conduction time and enables effective duty cycles approaching 100%, supporting VOUT as high as VIN – dropout losses.
Can the TPS54560QDDARQ1 synchronize to an external clock, and what are the timing requirements?
Yes - the RT/CLK pin supports external clock synchronization when driven above 1.55 V (high threshold) with minimum pulse width of 15 ns. The internal PLL locks within 78 μs, and the pin reverts to resistor-programmed mode if clock edges stop. Synchronization avoids beat frequencies in multi-converter systems.
What is the purpose of the COMP pin on the TPS54560QDDARQ1, and how is it used in design?
COMP is the transconductance error amplifier output that drives the PWM comparator. It must be externally compensated with a capacitor, series resistor, and capacitor to ground to stabilize the control loop. Its voltage (0–3 V range) directly controls high-side MOSFET on-time; clamping at 600 mV enables Eco-Mode™ pulse skipping.
Does the TPS54560QDDARQ1 require an external bootstrap diode, and why or why not?
No - the TPS54560QDDARQ1 integrates a BOOT recharge FET, eliminating the need for an external bootstrap diode. This reduces BOM count, PCB area, and potential failure points. A 0.1-μF ceramic capacitor between BOOT and SW is still required to supply gate drive charge to the high-side MOSFET.
TPS54560QDDARQ1 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:
- 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:
- 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
TPS54560QDDARQ1 FAQ
1.How can I place an order for TPS54560QDDARQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54560QDDARQ1 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 TPS54560QDDARQ1 reliable?
The price and inventory of TPS54560QDDARQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54560QDDARQ1 is usually 5 days.
3.What payment methods are accepted for TPS54560QDDARQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54560QDDARQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54560QDDARQ1?
TPS54560QDDARQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54560QDDARQ1 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 TPS54560QDDARQ1?
For technical support, including TPS54560QDDARQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54560QDDARQ1 requirements.
6.How does Aetrix verify that TPS54560QDDARQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54560QDDARQ1 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 TPS54560QDDARQ1 meets industry standards.
7.What is the process for return or replacement of TPS54560QDDARQ1?
All TPS54560QDDARQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54560QDDARQ1, 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 TPS54560QDDARQ1 part is unused and in its original packaging.
Return procedure for TPS54560QDDARQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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