TPS54900

illustrate

The TPS54900 four-channel buck converter is voltage-mode PWM controlled and provides four independent programmable output voltages. Each channel includes a typical R ON switch for high-end PMOSFETs) 0.8 station deputy ( , which makes it highly efficient, low current applications. Commands are sent to TPS54900 in four-wire serial ports for the output of a stand-alone or global supply voltage from 7.5 V to 0.4-V in increments of 13.1 V. When the input voltage is required for the output, the bypass mode can be activated, which greatly improves the switching of the PMOSFET and the switching circuit that shuts down the selected channel.

The TPS54900 is an ideal companion device as part of the AC5 local ADSL chip THS7102 power ADSL line driver.

characteristic

• Four independent 100-mA channels are programmable over the 4-wire serial port
• Converter Adjustment Range: 400 mV steps from 7.5 V to 13.1 V, plus unconventional pass-through mode in parallel VIN to any output
• Internally compensated PWM controller and power switch integrate PMOS electricity
• Global and per-channel serial status
• PWM for external system clock synchronization
• Current limit per channel and thermal shutdown worldwide
• Ambient temperature range from -40°C to 85°C
• apply
  • ADSL local line drivers
  • Software supply line card