Model No: TPS54560DDAR

Texas Instruments TPS54560DDAR

Manufacturer: Texas Instruments
SEMICON NO.: TPS54560DDAR
Package: 8-SOIC
Stock: In stock
Description: Step-Down Converter Positive 0.8V 1 Output 5A
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 Mfr       Texas Instruments 
 Device Type    Step-Down (Buck) Switching Regulator
 Input Voltage      4.5 V to 60 V
 Output Configuration     Positive
 Topology   Buck, Split Rail    
 Output Type     Adjustable
 Number of Outputs     1
 Output Voltage Range   0.8 V to 58.8 V
 Output Current (Max)  5 A
 Switching Frequency Range   100 kHz to 2.5 MHz
 Integrated High-Side MOSFET 92 mΩ
 Internal Voltage Reference  0.8 V ±1%
 Operating Temperature  -40°C to +150°C
 Package 8-SOIC
 Mounting Type
 Surface Mount
 Compliance    
 RoHS Compliant
 
TPS54560DDAR DC‑DC buck converter
TPS54560DDAR is a high‑performance 5‑A step‑down DC‑DC buck converter manufactured by Texas Instruments, delivering a wide 4.5 V to 60 V input voltage range with an integrated 92‑mΩ high‑side MOSFET for simplified power‑supply circuit design. Adopting peak‑current‑mode control and Eco‑mode pulse‑skipping technology, this surface‑mount regulator maintains outstanding conversion efficiency under both heavy and light‑load conditions, tolerates 65 V load‑dump transients compliant with ISO 7637, and comes in a thermally enhanced HSOP‑8 PowerPAD package for reliable heat dissipation in industrial and automotive‑grade power systems.
Key Features
● Wide operating input voltage from 4.5 V to 60 V, supporting 12 V, 24 V and 48 V bus power supplies.
● Built‑in 92‑mΩ high‑side MOSFET with continuous 5‑A output current capability.
● Eco‑mode pulse‑skipping modulation improves light‑load efficiency, featuring 146 μA operating quiescent current and 2 μA shutdown current.
● Adjustable switching frequency ranging from 100 kHz to 2.5 MHz, with external clock synchronization function.
● 0.8 V, 1%‑accuracy internal voltage reference and programmable under‑voltage lockout with configurable hysteresis.
● Comprehensive protection circuits including cycle‑by‑cycle current limiting, over‑voltage protection and thermal shutdown.
FAQ
Q: What are the main advantages of TPS54560DDAR compared with ordinary buck converters?
A: Its 60 V wide‑input rating, Eco‑mode high light‑load efficiency and load‑dump transient resistance make it well‑suited for industrial and automotive high‑voltage bus systems.
Q: What layout precautions should be taken during PCB design?
A: Place the input capacitor close to the VIN pin, use short high‑current power traces, and fully solder the exposed PowerPAD thermal pad to the ground plane for sufficient heat dissipation.
Alternative DC‑DC regulator Models
● TPS54561DDAR: A pin‑compatible variant with identical 60 V, 5‑A specifications, offering modified frequency synchronization parameters for flexible system clock design.
● LM25117MH: Wide‑input synchronous buck controller supporting high‑current output, suitable for applications needing external power MOSFETs for higher power expansion.
● TPS54360DDAR: 60‑V input, 3‑A step‑down converter with the same Eco‑mode technology, ideal for low‑current power rails as a cost‑effective downgrade option.