• Low Integrated RDSON Switches: 46mΩ/34mΩ
• Split Rails for Supply (VIN) and Power (PVIN)
1.8V to 18V Range for PVIN
4.5V to 18V Range for VIN
• 200kHz to 2MHz Switching Frequency
• External Clock Synchronization
• Voltage Tracking Capability
• 0.8V Internal Reference Voltage
• ±1% Reference Voltage Accuracy
• 3.4μA (TYP) Shutdown Current
• Hiccup Mode Current Limit
• Monotonic Startup with Pre-biased Outputs
• Adjustable Soft-Start Time
• Power Sequencing Capability
• Power Good Output Monitor for Under-Voltage
and Over-Voltage Protections
• Adjustable Input Under-Voltage Lockout (UVLO)
• -40℃ to +125℃ Operating Temperature Range
• Available in a Green TQFN-3.5×3.5-14L Package
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• Integrated 57-mΩ / 50-mΩ MOSFETs
• Split Power Rail: 1.6 to 17 V on PVIN
• 200-kHz to 1.2-MHz Switching Frequency
• Synchronizes to External Clock
• 0.8-V Voltage Reference With ±1% Accuracy
• Low 2-μA Shutdown Quiescent Current
• Hiccup Overcurrent Protection
• Monotonic Start-Up into Prebiased Outputs
• –40°C to 150°C Operating Junction Temperature
Range
• Pin-to-Pin Compatible With the TPS54620
• Adjustable Slow Start/Power Sequencing
• Power Good Output for Undervoltage and
Overvoltage Monitoring
• Adjustable Input Undervoltage Lockout (UVLO)
• Supported by SwitcherPro™ Software Tool
• For SWIFT™ Documentation and SwitcherPro,
Visit www.ti.com/swift
• Create a Custom Design Using the TPS54320
With the WEBENCH® Power Designer
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