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Texas Instruments TPS54560BDDA
- Part No.:
- TPS54560BDDA
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54560BDDA.pdf
- Description:
- IC REG BCK SPLIT RAIL ADJ 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:419
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Product details
Overview
TPS54560BDDA 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, and adjustable 100 kHz–2.5 MHz switching frequency. It delivers regulated output down to 0.8 V in industrial power systems, automotive accessories, and USB charging ports.
For engineers reviewing the TPS54560BDDA datasheet, TPS54560BDDA pinout, TPS54560BDDA application, or TPS54560BDDA equivalent, key selection criteria include input voltage survival up to 65 V (ISO 7637 load dump), 146 μA no-load quiescent current, internal 0.8 V ±1% reference, thermal shutdown at 176°C, and HSOP-8 PowerPAD™ package with θJCbot = 3.6°C/W.
Technical Context
The TPS54560BDDA implements constant-frequency peak current-mode control with internal slope compensation to prevent subharmonic oscillation above 50% duty cycle. Its RT/CLK pin supports both resistor-programmed frequency (100–2500 kHz) and external clock synchronization via PLL lock.
It integrates BOOT capacitor recharge logic and BOOT-SW UVLO (2.1 V threshold) to enable near-100% duty-cycle operation, while the EN pin provides adjustable undervoltage lockout with 1.2 V threshold and 325 mV hysteresis. Overvoltage transient protection disables the high-side switch if output exceeds 106% of setpoint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 60 V - survives ISO 7637 load dump pulses up to 65 V |
| Output Current | 5 A continuous - limited cycle-by-cycle with open-loop threshold of 7.5 A typical |
| Switching Frequency | 100 kHz to 2.5 MHz - selectable via RT resistor or external clock sync |
| Quiescent Current | 146 μA at no load - enables low-power standby in battery-backed systems |
| Reference Voltage | 0.8 V ±1% - sets minimum output voltage; used with FB divider for precise regulation |
| High-Side RDS(on) | 92 mΩ typical at VIN = 12 V - determines conduction loss and thermal rise at full load |
| Thermal Shutdown | 176°C with 12°C hysteresis - protects IC and PCB during overload or poor heatsinking |
Pinout & Package
TPS54560BDDA uses an 8-pin 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 large copper pour for optimal thermal performance (θJCbot = 3.6°C/W).
| 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; powers internal circuitry and high-side driver; withstands 65 V transients |
| EN | Enable and UVLO control | Pull below 1.2 V to disable; float or tie to VIN for enable; configure UVLO threshold with resistor divider |
| RT/CLK | Frequency programming/sync input | Resistor-to-GND sets fSW; >2 V triggers PLL sync mode for external clock alignment |
| FB | Feedback sensing node | Inverting input of error amplifier; connects to resistor divider from VOUT to set output voltage per VREF = 0.8 V |
| COMP | Error amplifier output | Drives PWM comparator; connect RC network for loop compensation; clamped at 600 mV in Eco-mode |
| GND | Power and signal ground | Common return for VIN, SW, COMP, FB, EN, RT/CLK; must connect to PowerPAD |
| SW | Switching node | Source of internal high-side MOSFET; connects to external inductor and BOOT capacitor; carries high di/dt |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse skipping | Reduces no-load input current to 146 μA by disabling switching when load is light and COMP ≤ 600 mV |
| Integrated BOOT recharge FET | Enables 100% duty-cycle operation by actively refreshing BOOT capacitor without external diode |
| Adjustable UVLO with hysteresis | EN pin allows user-defined start-up voltage (e.g., 9 V) with 325 mV built-in hysteresis to prevent chatter |
| Current-mode control with slope comp | Stabilizes loop at >50% duty cycle; simplifies compensation and improves transient response |
| Overvoltage transient protection (OVP) | Disables high-side switch if VOUT exceeds 106% of regulation point, preventing downstream damage |
Applications
| Automotive GPS & Infotainment | Industrial 24 V Power Rails |
|---|---|
|
Use Scenario: Powering navigation modules, display controllers, and audio amplifiers in 12 V vehicle electrical systems subject to load dump transients. IC Role / Device Role / Timing Role: Primary buck regulator converting battery rail (9–16 V nominal, up to 65 V transient) to stable 5 V or 3.3 V for digital subsystems. Use Value: Survives ISO 7637-2 Pulse 5a (65 V/100 ms) without external TVS; Eco-mode extends battery runtime during idle. |
Use Scenario: Generating 5 V or 12 V from 24 V factory automation bus for PLC I/O, sensors, and communication interfaces. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with adjustable fSW to minimize EMI in noise-sensitive control cabinets. Use Value: 92 mΩ RDS(on) and PowerPAD™ enable 5 A output at <75°C junction rise on 2-layer board; RT/CLK sync avoids beat frequencies with other SMPS. |
| USB Dedicated Charging Port (DCP) | 48 V Telecom Power Conversion |
|
Use Scenario: Implementing BC1.2-compliant 5 V/1.5 A charging port in vehicle docking stations or portable kiosks. IC Role / Device Role / Timing Role: Constant-voltage regulator with tight 0.8 V reference tolerance (±1%) ensuring ±50 mV output accuracy across temperature. Use Value: Internal soft-start (2.1 ms at 500 kHz) prevents inrush into large output caps; OVP protects connected devices from overvoltage faults. |
Use Scenario: Stepping down 48 V telecom distribution rail to 12 V or 5 V for baseband processors and FPGA power domains. IC Role / Device Role / Timing Role: Wide-input buck controller supporting 36–60 V input range with robust thermal management under sustained 5 A load. Use Value: 150°C max junction rating and θJCbot = 3.6°C/W allow operation in sealed enclosures; frequency foldback maintains stability during short-circuit recovery. |
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 A output, 1.5 MHz fixed fSW, no Eco-mode, smaller HSOP-8 package (3.0 × 4.0 mm) | Lower current capability; suited for auxiliary rails where size and EMI matter more than full 5 A delivery | Select when board space is constrained and load <1.2 A; verify thermal margin with θJA = 62.5°C/W |
| TPS54561DDAR | Same 4.5–60 V / 5 A spec but adds integrated 5-V LDO bias rail for gate drivers or logic; identical pinout and package | Eliminates need for external bias supply in multi-rail designs; increases BOM count only if LDO unused | Choose when powering external high-side drivers or level shifters; otherwise TPS54560BDDA offers lower cost and same performance |
Compared with LM5164QPWPRQ1, TPS54560BDDA delivers 5× higher output current and Eco-mode for battery longevity; compared with TPS54561DDAR, it omits the auxiliary LDO to reduce cost and complexity where bias rails are already available.
Availability
TPS54560BDDA is available at Aetrix Electronics and suitable for industrial automation, automotive accessory modules, and USB charging infrastructure requiring stable component supply across extended temperature and voltage ranges.
Supply support for TPS54560BDDA 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 and industrial qualification expertise.
The TPS54560BDDA belongs to TI's SWIFT™ family of high-voltage buck regulators, engineered for ruggedness in harsh environments-specifically targeting 12 V, 24 V, and 48 V systems needing reliable 5 A conversion with transient immunity.
FAQ
What is the maximum input voltage the TPS54560BDDA can withstand without damage?
The TPS54560BDDA has an absolute maximum input voltage rating of 65 V, enabling it to survive ISO 7637-2 load dump transients common in automotive 12 V systems. Continuous operation is specified from 4.5 V to 60 V; operation above 60 V is only permitted for transient events ≤100 ms.
Does the TPS54560BDDA require an external bootstrap diode?
No, the TPS54560BDDA integrates a bootstrap recharge FET, eliminating the need for an external diode. A 0.1 µF X7R/X5R ceramic capacitor between BOOT and SW is sufficient. This integration reduces component count and enables low-dropout operation approaching 100% duty cycle.
How does Eco-mode™ improve light-load efficiency in the TPS54560BDDA?
Eco-mode™ in the TPS54560BDDA reduces no-load input current to 146 μA by entering pulse-skipping mode when output load is light and COMP voltage falls to 600 mV. Switching pauses until output droop raises COMP above threshold, minimizing gate drive and switching losses without compromising regulation.
Can the TPS54560BDDA synchronize to an external clock signal?
Yes, the TPS54560BDDA supports external clock synchronization via its RT/CLK pin. When driven above 2 V with a clean clock signal (160–2300 kHz), the internal PLL locks to the falling edge, enabling deterministic timing and EMI reduction in multi-converter systems.
What thermal performance can be expected from the TPS54560BDDA in a standard PCB layout?
In a standard 2-layer PCB with 2 oz copper and 1 in² thermal pad connected to the PowerPAD™, the TPS54560BDDA achieves θJA ≈ 42°C/W. With proper heatsinking, it sustains 5 A continuous output at ambient temperatures up to 85°C while maintaining TJ < 150°C, verified by θJCbot = 3.6°C/W.
TPS54560BDDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
TPS54560BDDA FAQ
1.How can I place an order for TPS54560BDDA through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54560BDDA 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 TPS54560BDDA reliable?
The price and inventory of TPS54560BDDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54560BDDA is usually 5 days.
3.What payment methods are accepted for TPS54560BDDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54560BDDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54560BDDA?
TPS54560BDDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54560BDDA 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 TPS54560BDDA?
For technical support, including TPS54560BDDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54560BDDA requirements.
6.How does Aetrix verify that TPS54560BDDA is sourced from the original manufacturer or authorized distributors?
All TPS54560BDDA 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 TPS54560BDDA meets industry standards.
7.What is the process for return or replacement of TPS54560BDDA?
All TPS54560BDDA units undergo pre-shipment inspection (PSI). If there is an issue with TPS54560BDDA, 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 TPS54560BDDA part is unused and in its original packaging.
Return procedure for TPS54560BDDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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