• Part: L6730B
  • Description: Adjustable step-down controller
  • Manufacturer: STMicroelectronics
  • Size: 1.44 MB
Download L6730B Datasheet PDF
STMicroelectronics
L6730B
L6730B is Adjustable step-down controller manufactured by STMicroelectronics.
- Part of the L6730 comparator family.
Features - - - Input voltage range from 1.8V to 14V Supply voltage range from 4.5V to 14V Adjustable output voltage down to 0.6V with ±0.8% accuracy over line voltage and temperature (0°C~125°C) Fixed frequency voltage mode control t ON lower than 100ns 0% to 100% duty cycle Selectable 0.6V or 1.2V internal voltage reference External input voltage reference Soft-start and inhibit High current embedded drivers Predictive anti-crossconduction control Selectable uvlo threshold (5V or 12V BUS) Programmable high-side and low-side RDS(on) sense over-current-protection Switching frequency programmable from 100k Hz to 1MHz Master/slave synchronization with 180° phase shift Pre-bias start up capability (L6730) Selectable source/sink or source only capability after soft-start (L6730) Selectable constant current or hiccup mode overcurrent protection after soft-start (L6730B) - - - - - - - - - - - - - - - - - - - HTSSOP20 Power good output with programmable delay Over voltage protection with selectable latched/not-latched mode Thermal shut-down Package: HTSSOP20 Applications - - - - - High performance / high density DC-DC modules Low voltage distributed DC-DC ni POL converters DDR memory supply DDR memory bus termination supply Order Codes Part number L6730 L6730TR L6730B L6730BTR June 2006 Package HTSSOP20 HTSSOP20 HTSSOP20 HTSSOP20 Rev 2 Packing Tube Tape & Reel Tube Tape & Reel 1/52 .st. 52 Contents L6730 - L6730B Contents 1 Summary description - - - - - - - - . . 4 1.1 Functional description - - - - - - - - . . . 5 Electrical data - - - - - - -...