●The TPS54061-Q1 device is a 60-V, 200-mA, 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 reduces the shutdown supply current to 1.4 µA.
●To increase light-load efficiency, the low-side MOSFET emulates a diode when the inductor current reaches zero.
●The internal undervoltage lockout setting is 4.5 V, but using two resistors on the enable pin can increase the setting. The internal slow-start time controls the output-voltage start-up ramp.
●The adjustable switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.
●The TPS54061-Q1 enables small designs by integrating the MOSFETs and boot recharge diode, and by minimizing the IC footprint with a small 3-mm × 3-mm thermally-enhanced SON package.
●The TPS54061-Q1 is supported in the WEBENCH™ Designer at www.ti.com.
● Qualified for Automotive Applications
● AEC-Q100 Qualified With the Following Results:
● Device Temperature Grade 1: –40°C to 125°C
●Ambient Operating Temperature Range
● Device HBM ESD Classification Level H2
● Device CDM ESD Classification Level C3B
● Integrated High-Side and Low-Side MOSFETs
● Diode Emulation for Light-Load Efficiency
● Peak-Current Mode Control
● 90-µA Operating Quiescent Current
● 1.4-µA Shutdown Supply Current
● 50-kHz to 1.1-MHz Adjustable Switching
●Frequency
● Synchronizes to External Clock
● 0.8 V ±1% Voltage Reference
● Stable With Ceramic Output Capacitors or Low-
●Cost Aluminum Electrolytic
● Cycle-by-Cycle Current Limit, Thermal, OVP, and
●Frequency Foldback Protection
● 3-mm × 3-mm, 8-Pin SON Package With Thermal
●Pad
● –40°C to 150°C Operating Junction Temperature
