SGM61450.pdf• 4.5V to 42V Input Voltage Range
• 0.8V to 36V Adjustable Output Voltage Range
• Integrated 68mΩ High-side MOSFET Supports
up to 5A Continuous Output Current
• Programmable Switching
Frequency: 100kHz to 2.5MHz
• Ultra-Low Quiescent Current: 148μA (TYP)
• Low Shutdown Current: 2.65μA (TYP)
• Power-Save Mode for High
Light Load Efficiency
• Sync (CLK) Input for External Clock Input
• Programmable UVLO Threshold
• Over-Voltage Transient Protection
• Cycle-by-Cycle Current Limit
• Frequency Fold-Back Protection
• Integrated BOOT Recharge
FET for Low Light-Load Dropout
• Thermal Shutdown (+176℃)
• Available in a Green SOIC-8
(Exposed Pad) Package
• High efficiency at light loads with pulse skipping
Eco-mode™
• 92-mΩ high-side MOSFET
• 146-μA operating quiescent current and
2-μA shutdown current
• 100-kHz to 2.5-MHz Fixed switching frequency
• Synchronizes to external clock
• Low dropout at light loads with integrated BOOT
recharge FET
• Adjustable UVLO and hysteresis
• 0.8 V 1% Internal voltage reference
• 8-Pin HSOIC with PowerPAD™ package
• –40°C to 150°C TJ operating range
• Create a custom design using the TPS54540B
with the WEBENCH® Power Designer
