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
Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.