TPS54061DRBT .

The TPS54061DRBT is a 60V/200mA synchronous Step-down DC-DC Converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 90 µA. Using the enable pin, shutdown supply current is reduced to 1.4µA. To increase light load efficiency the low-side MOSFET emulates a diode when the inductor current reaches zero. Under-voltage lockout is internally set at 4.5V, but can be increased using two resistors on the enable pin. The output voltage start-up ramp is controlled by the internal slow-start time.

• Integrated high-side and low-side MOSFET
• Diode emulation for improved light load efficiency
• Peak current mode control
• 90µA Operating quiescent current
• 1.4µA Shutdown current
• 50 to 1100kHz Adjustable switching frequency
• Synchronizes to external clock
• Internal slow-start
• 0.8V ±1% Voltage reference
• Stable with ceramic output capacitors or low-cost aluminium electrolytic
• Cycle-by-cycle current limit, thermal, OVP and frequency foldback protection
• Green product and no Sb/Br

Applikasjoner

Power Management, Sensing & Instrumentation, Industrial, Automation & Process Control, Metering, Security