• Supply Voltage Range: 2.9V to 6V
• Low RDSON Integrated Switches (11.2mΩ/11.2mΩ)
• Fixed 200kHz to 2MHz Switching Frequency
• External Clock Synchronization
• Voltage Tracking Capability
• 0.6V Internal Voltage Reference
• 2μA (TYP) Shutdown Quiescent Current
• Hiccup Mode Current Limit
• Monotonic Startup with Pre-Biased Outputs
• Adjustable Soft-Start Time
• Power Sequencing Capability
• Under-Voltage/Over-Voltage Power Good Output
• Adjustable Input Under-Voltage Lockout (UVLO)
• Available in a Green TQFN-3×3-16CL Package

• Two 12-mΩ (typical) MOSFETs for high-efficiency
6-A continuous output current
• 200-kHz to 2-MHz Switching frequency
• 0.6-V ±1% Voltage reference over temperature
(–40°C to 150°C)
• Synchronizes to external clock
• Start-Up with prebiased voltage
• Power good output
• Adjustable slow start and sequencing
• Cycle-by-cycle current limit and hiccup current
protection
• Adjustable input voltage UVLO
• Thermally enhanced 16-pin 3-mm × 3-mm WQFN
(RTE)
• Create a custom design using the TPS54678 with
the WEBENCH® Power Designer
