The TPS54550PWP is a medium output current synchronous buck PWM Converter with integrated high-side MOSFET and a gate driver for 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 TPS54550 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5V, a 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. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
● Uses external low-side MOSFET
● Synchronizes to external clock
● Adjustable slow start
● Adjustable undervoltage lockout
● Load protected by peak current limit and thermal shutdown
● Output voltage adjustable down to 0.891V with 1% accuracy
● 40mR MOSFET switch for high efficiency at 6A (7.5A peak) output current
● 180° Out of phase synchronization
● Green product and no Sb/Br
