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Texas Instruments TPS54560BQDDAQ1
- Part No.:
- TPS54560BQDDAQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS54560BQDDAQ1.pdf
- Description:
- IC REG BCK SPLIT RAIL ADJ 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:1,476
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Product details
Overview
TPS54560BQDDAQ1 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 100 kHz–2.5 MHz switching frequency. It operates in automotive environments (–40°C to 150°C TJ), supports load dump up to 65 V per ISO 7637, and delivers regulated power to infotainment systems, USB charging ports, and industrial motor controllers.
For engineers reviewing the TPS54560BQDDAQ1 datasheet, TPS54560BQDDAQ1 pinout, TPS54560BQDDAQ1 application, or TPS54560BQDDAQ1 equivalent, key selection considerations include its wide VIN range, integrated BOOT recharge FET enabling >99% duty cycle, current-mode control with external compensation, EN-adjustable UVLO, and thermal shutdown protection - all in an HSOP-8 PowerPAD™ package.
Technical Context
The TPS54560BQDDAQ1 implements fixed-frequency peak current-mode control with internal 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 PWM comparator via the COMP pin, while cycle-by-cycle current limiting and frequency foldback protect against overloads.
It features dual-mode RT/CLK terminal operation: resistor-programmed frequency (100–2500 kHz) or external clock synchronization (160–2300 kHz) via PLL lock. The integrated BOOT recharge FET enables low-dropout operation down to ~VIN – 0.3 V, and the OVP comparator 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 - supports 12 V, 24 V, and 48 V automotive/industrial rails; survives 65 V load dump pulses per ISO 7637. |
| Output Current | 5 A continuous - delivered via integrated 92 mΩ high-side MOSFET; cycle-by-cycle current limit at 7.9 A (typ). |
| 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 (no-switching, light load) - enables Eco-mode™ pulse skipping; drops to 2 µA in shutdown. |
| Reference Voltage | 0.8 V ±1% - sets output voltage via FB resistor divider; stable over –40°C to 150°C junction temperature. |
| UVLO Threshold | 4.3 V (rising), 4.0 V (falling) - internally set; adjustable upward using EN pin with external resistor divider. |
| Thermal Protection | 176°C shutdown with 12°C hysteresis - prevents damage under sustained overload or poor PCB thermal design. |
Pinout & Package
TPS54560BQDDAQ1 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 pad must be soldered to a large GND copper area for 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 by internal UVLO to enable automatic recharge. |
| VIN | Main input supply | Accepts 4.5–60 V; powers internal circuitry and high-side driver; withstands 65 V transient per ISO 7637. |
| EN | Enable / UVLO adjust | Pull below 1.2 V to disable; float or pull high to enable; used with resistors to raise UVLO threshold above 4.3 V. |
| RT/CLK | Frequency programming / sync input | Resistor-to-GND sets fSW (100–2500 kHz); pulled above 1.55 V to enter PLL sync mode (160–2300 kHz). |
| FB | Feedback input | Inverting input of error amplifier; compares output voltage (via resistor divider) to 0.8 V reference for regulation. |
| COMP | Error amplifier output | Drives PWM comparator; connects to external compensation network (R-C-C) for loop stability. |
| GND | Power and signal ground | Common return for VIN, SW, and internal circuits; must connect to PowerPAD™ and system GND plane. |
| SW | Switching node | Source of internal high-side MOSFET; connects to external inductor and BOOT capacitor; carries high di/dt current. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ Pulse Skipping | Reduces no-load input current to 146 µA by disabling switching when load is light - critical for always-on automotive modules. |
| Integrated BOOT Recharge FET | Enables >99% duty cycle operation without external diode; maintains regulation even when VOUT approaches VIN - ideal for low-dropout 12 V → 5 V/3.3 V conversion. |
| Adjustable UVLO with Hysteresis | Internal 4.3 V start-up threshold with 325 mV hysteresis; extended via EN pin to prevent brownout restarts in noisy vehicle electrical systems. |
| Current-Mode Control + Slope Compensation | Ensures stable operation across full duty cycle range (including >50%), simplifies compensation, and improves transient response vs. voltage-mode designs. |
| OVP Transient Protection | Disables high-side switch if output exceeds 106% of target - prevents damage to downstream 3.3 V/5 V logic during startup or fault conditions. |
| Thermal Shutdown with Hysteresis | Shuts down at 176°C and remains off until junction cools to 164°C - protects silicon and PCB during sustained overload or inadequate heatsinking. |
Applications
| Automotive Infotainment Power | Industrial Motor Drive Bias Supply |
|---|---|
|
Use Scenario: Powers display controller, audio codec, and USB hub in vehicle head units operating from 12 V battery with load dump and cold-crank transients. IC Role / Device Role / Timing Role: Primary 5 V/3.3 V buck regulator delivering 5 A continuous; handles ISO 7637 pulse 5a (65 V/100 ms) without latch-off. Use Value: Integrated 60 V rating and 150°C junction rating eliminate need for external TVS or derating; Eco-mode extends battery life in standby. |
Use Scenario: Generates isolated gate drive bias (15 V) and logic supply (5 V) for IGBT drivers in servo motor inverters powered from 48 V DC bus. IC Role / Device Role / Timing Role: High-reliability step-down converter with robust current limit and thermal shutdown; synchronized to system clock via RT/CLK pin. Use Value: 2.5 MHz max switching frequency allows compact magnetics; current-mode control ensures fast response to motor current spikes. |
| USB Dedicated Charging Port (DCP) | 48 V Telecom Intermediate Bus Converter |
|
Use Scenario: Implements BC1.2-compliant 5 V/1.5 A charging port in vehicle rear-seat entertainment systems, requiring stable output under varying input (9–16 V). IC Role / Device Role / Timing Role: Constant-voltage buck regulator with precise 0.8 V reference and tight line/load regulation; uses EN pin for host-controlled enable/disable. Use Value: 1% reference tolerance and low output impedance ensure accurate DCP voltage compliance; 146 µA quiescent current meets automotive sleep-mode requirements. |
Use Scenario: Steps down 48 V intermediate bus to 12 V for PoE switches or base station RF modules in harsh telecom environments. IC Role / Device Role / Timing Role: High-input-voltage buck converter with wide fSW range; configured at 400 kHz for optimal efficiency and EMI filtering. Use Value: 92 mΩ RDS(on) and low 2 µA shutdown current minimize conduction and standby losses; HSOP PowerPAD™ enables high-power density on dense PCBs. |
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, no integrated BOOT FET - requires external bootstrap diode. | Better suited for ultra-low-IQ (<15 µA) always-on sensors; insufficient for 5 A loads. | Select only for sub-1 A applications where footprint and IQ are prioritized over output current. |
| TPS54561QDDAQ1 | Same pinout, 60 V/5 A, but lacks Eco-mode™ - 1.2 mA typical no-load IQ vs. 146 µA for TPS54560BQDDAQ1. | Higher light-load power loss; less suitable for battery-backed or sleep-mode automotive modules. | Choose only if Eco-mode is unnecessary and legacy design reuse is required - not a drop-in replacement for efficiency-critical use cases. |
Compared with LM5164QDDARQ1 and TPS54561QDDAQ1, the TPS54560BQDDAQ1 uniquely combines 5 A output, Eco-mode™, integrated BOOT recharge, and ISO 7637 compliance - making it the only option among the three qualified for high-current automotive power rails with stringent light-load efficiency demands.
Availability
TPS54560BQDDAQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial motor control bias supplies, and USB dedicated charging ports requiring stable component supply across extended temperature and qualification lifecycles.
Supply support for TPS54560BQDDAQ1 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 designing analog ICs, embedded processors, and digital signal solutions for automotive, industrial, and communications markets.
The TPS54560BQDDAQ1 belongs to TI's automotive-grade DC-DC converter portfolio, engineered specifically for AEC-Q100 Grade 1 (–40°C to 125°C ambient) and extended-junction (–40°C to 150°C) operation in safety-critical vehicle subsystems.
FAQ
What is the maximum input voltage the TPS54560BQDDAQ1 can withstand during load dump events?
The TPS54560BQDDAQ1 is rated to survive load dump pulses up to 65 V per ISO 7637-2 Pulse 5a, with absolute maximum VIN = 65 V. This rating is validated across temperature and applies to transient events - not continuous operation. For reliable long-term use, keep steady-state VIN ≤ 60 V as specified in recommended operating conditions. The device enters shutdown if junction temperature exceeds 176°C during such events.
Does the TPS54560BQDDAQ1 require an external bootstrap diode?
No, the TPS54560BQDDAQ1 integrates a BOOT recharge FET, eliminating the need for an external bootstrap diode. A 0.1 µF X7R/X5R ceramic capacitor between BOOT and SW is sufficient. This integration enables >99% duty cycle operation and reduces BOM count and layout complexity - a key differentiator from non-integrated alternatives like the LM5164QDDARQ1.
How does Eco-mode™ operate in the TPS54560BQDDAQ1, and what is its impact on output ripple?
Eco-mode™ in the TPS54560BQDDAQ1 activates when load current falls below ~25 mA (dependent on inductor value), clamping COMP at 600 mV and halting switching to reduce quiescent current to 146 µA. Output voltage decays until the error amplifier lifts COMP above threshold, triggering a burst of switching cycles. This causes higher low-frequency output ripple versus forced PWM, but significantly improves light-load efficiency - essential for automotive always-on modules.
Can the TPS54560BQDDAQ1 synchronize to an external clock, and what are the valid frequency and voltage levels?
Yes, the TPS54560BQDDAQ1 synchronizes to an external clock applied to the RT/CLK pin. Valid input clock frequency is 160–2300 kHz. The pin detects synchronization when pulled above 1.55 V (typical high threshold) and below 0.5 V (low threshold), with minimum pulse width of 15 ns. PLL lock time is 78 µs at 500 kHz. When clocking stops, the device automatically reverts to resistor-programmed mode.
What thermal design guidance applies to the TPS54560BQDDAQ1's PowerPAD™ package?
The HSOP-8 PowerPAD™ thermal pad of the TPS54560BQDDAQ1 must be soldered to a minimum 100 mm² copper area connected to PCB GND for effective heat dissipation. TI specifies θJA = 42.0°C/W on a standard 2-layer board. For 5 A continuous operation at high ambient temperatures, use internal/external thermal vias (≥6×0.3 mm) under the pad and connect to inner GND planes. Thermal shutdown triggers at 176°C junction temperature.
TPS54560BQDDAQ1 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:
- 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
TPS54560BQDDAQ1 FAQ
1.How can I place an order for TPS54560BQDDAQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54560BQDDAQ1 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 TPS54560BQDDAQ1 reliable?
The price and inventory of TPS54560BQDDAQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54560BQDDAQ1 is usually 5 days.
3.What payment methods are accepted for TPS54560BQDDAQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54560BQDDAQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54560BQDDAQ1?
TPS54560BQDDAQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54560BQDDAQ1 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 TPS54560BQDDAQ1?
For technical support, including TPS54560BQDDAQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54560BQDDAQ1 requirements.
6.How does Aetrix verify that TPS54560BQDDAQ1 is sourced from the original manufacturer or authorized distributors?
All TPS54560BQDDAQ1 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 TPS54560BQDDAQ1 meets industry standards.
7.What is the process for return or replacement of TPS54560BQDDAQ1?
All TPS54560BQDDAQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54560BQDDAQ1, 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 TPS54560BQDDAQ1 part is unused and in its original packaging.
Return procedure for TPS54560BQDDAQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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