SCT2650Q 可Pin To Pin 替代TPS54540-Q1；TPS54560-Q1

The SCT2650Q is 5A buck converter with wide input 
voltage, ranging from 4.5V to 60V, which integrates an
80mΩ high-side MOSFET. The SCT2650Q, adopting 
the peak current mode control, supports the Pulse 
Skipping Modulation (PSM) which assists the converter 
on achieving high efficiency at light load or standby 
condition. 
The SCT2650Q features programmable switching 
frequency from 100kHz to 1.2MHz with an external 
resistor, which provides the flexibility to optimize either 
efficiency or external component size. The converter 
supports external clock synchronization with a 
frequency band from 100kHz to 1.2MHz. The 
SCT2650Q allows power conversion from high input
voltage to low output voltage with a minimum 130ns ontime of high-side MOSFET.
The device offers fixed 4ms soft start to prevent inrush 
current during the startup of output voltage ramping. 
The SCT2650Q features external loop compensation
to provide the flexibility to optimize either loop stability 

 Qualified for Automotive Applications
 AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
 Wide Input Range: 4.5V-60V
 Up to 5A Continuous Output Current
 0.8V ±1% Feedback Reference Voltage
 Integrated 80mΩ High-Side MOSFET
 Low Quiescent Current: 175uA
 Pulse Skipping Mode (PSM) in light load
 130ns Minimum On-time
 4ms Internal Soft-start Time
 Adjustable Frequency 100KHz to 1.2MHz
 External Clock Synchronization
 Precision Enable Threshold for Programmable
Input Voltage Under-Voltage Lock Out Protection
(UVLO) Threshold and Hysteresis
 Low Dropout Mode Operation
 Derivable Inverting Voltage Regulator
 Over-voltage and Over-Temperature Protection
 Available in an ESOP-8 Package
APPLICATIONS
 12-V, 24-V, 48-V Industry and Telecom Power
System
 Industrial Automation and Motor Control
 Vehicle Accessories

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