TPS54350PWP

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization. The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD package.

Applications

• Industrial & Commercial Low Power Systems
• LCD Monitors and TVs
• Computer Peripherals
• Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

Key features

• 100 mΩ, 4.5-A Peak MOSFET Switch for Hig Efficiency at 3-A Continuous Output Current
• Uses External Lowside MOSFET or Diode
• Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
• Synchronizes to External Clock
• 180° Out of Phase Synchronization
• Wide PWM Frequency − Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
• Internal Slow Start
• Load Protected by Peak Current Limit and Thermal Shutdown
• Adjustable Undervoltage Lockout
• 16-Pin TSSOP PowerPAD Package