TPS54550

illustrate

The TPS54550 is a medium output current synchronous step-down PWM converter with integrated high-side MOSFETs and a low-side gate to drive external MOSFETs. Features include a high-performance voltage error amplifier that enables transient conditions and selects output filter inductors and capacitors for maximum flexibility. The TPS54550 has an undervoltage latching circuit that prevents start-up until the input voltage reaches 4.5 volts; A slow-start circuit to limit inrush current, and a power good output indicate a valid output condition. The synchronization function is not configured as input or output to facilitate 180° out-of-phase synchronization.

The TPS54550 device is available in a thermally enhanced 16-pin TSSOP (public service) PowerPAD™ package.

characteristic

• 40 meters The high efficiency of the MOSFET switch outputs current at six A types (7.5 peaks).
• Lowside using external MOSFETs
• With the output voltage, it can be adjusted down to 1% accuracy to 0.891 V
• Synchronize to an external clock
• 180 ° out-of-phase synchronization
• Wide PWM frequency fixed 250 kHz, 500 kHz or adjustable to 700 kHz 250 kHz
• Adjustable slow start
• Adjustable undervoltage lockout
• The load is protected by peak current limit and thermal shutdown
• The 16-pin TSSOP is available in a PowerPAD™ package
• apply
  • Industrial and commercial low-energy systems
  • LCD monitor and television
  • Computer peripheral products
  • High-performance DSP, FPGAs, ASICs and microprocessor regulations for point-of-load