TPS54362-Q1

illustrate

The TPS54362 is a switching power supply with a voltage monitor. The integrated input voltage feeder topology improves the transient regulation of the voltage-mode buck regulator. The regulator has a cycle-by-cycle current limit. A pulse skip mode operates with a no-load supply current reduced to 65μA. Using the enable pin, the power shutdown current is reduced to 1μA.

The open-drain reset signal indicates when the output falls below the threshold nominally set by the external resistor divider network. The uphill output voltage start is made by a soft-start capacitor. There is an internal undervoltage shutdown when it is activated, and the input voltage ramp drops to 2.

characteristic

• Withstands transients up to 60V and operation
  3.6V to 48V range
• Asynchronous external switch-mode voltage regulator
  Components (L and C) with load currents up to 3A (max)
• 0.8V Reference Voltage ± 1.5%
• 200kHz to 2.2MHz switching frequency
• High voltage tolerance enables ON/OFF input country
• Enabled on the soft-start cycle
• Internal power switch for slew rate control
• External clock inputs are synchronized
• Pulse skipping in output mode (PFM) at light load
  = 65μA typical quiescent current (landslide prevention operation)
• The bandwidth of the externally compensated error amplifier is wide
• Internal undervoltage locking UVLO door
• Programmable power-on reset delay
• The reset function filters the time quickly transients negative
• Programmable output overvoltage monitoring
• Programmable undervoltage output monitoring and issuance
  The reset output is below the threshold
• Excessive power consumption during thermal shutdown
• Switching current limit protection
• Field effect tubes for short circuit and overcurrent protection
• Junction temperature range: -40°C to 150°C
• Package: 20-pin HTSSOP PowerPAD™