TPS552882

• Wide input and output voltage range
  • Wide input voltage range: 2.7 V to 36 V
  • Wide output voltage range: 0.8 V to 22 V
• High efficiency over entire load range
  • 97% efficiency at V_IN = 12 V, V_OUT = 20 V and I_OUT = 3 A
  • Programmable PFM and FPWM mode at light load
• Avoid frequency interference and crosstalk
  • Optional clock synchronization
  • Programmable switching frequency from 200 kHz to 2.2 MHz
• EMI mitigation
  • Optional programmable spread spectrum
  • Lead-less package
• Rich protection features
  • Output overvoltage protection
  • Hiccup mode for output short-circuit protection
  • Thermal shutdown protection
  • Programmable average inductor current limit up to 16 A
• Small solution size
  • Maximum switching frequency up to 2.2 MHz
  • 4.0-mm × 3.5-mm HotRod™ QFN package
• Adjustable output voltage compensation for voltage droop over the cable
• Programmable output current limit by sensing resistor
• ±5% accurate output current monitoring
• ±1% reference voltage accuracy
• Fixed 4-ms soft-start time
• Create a custom design using the TPS552882 with the WEBENCH Power Designer

The TPS552882 is a synchronous four-switch buck-boost converter capable of regulating the output voltage at, above, or below the input voltage. The TPS552882 operates over a 2.7-V to 36-V wide input voltage and is capable of outputing 0.8-V to 22-V voltage to support a variety of applications.

The TPS552882 integrates two 16-A MOSFETs of the boost leg to balance the solution size and efficiency. The TPS552882 uses an external resistor divider to set the output voltage with 1.2V internal reference voltage. The TPS552882 is capable of delivering 100 W from 12-V input voltage.

The TPS552882 employs average current-mode control scheme. The switching frequency is programmable from 200 kHz to 2.2 MHz by an external resistor and can be synchronized to an external clock. The TPS552882 also provides optional spread spectrum to minimize peak EMI.

The TPS552882 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS552882 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS552882 can use a small inductor and small capacitors with high switching frequency. It is available in a 4.0-mm × 3.5-mm HotRod QFN package.