equency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The Power Save Mode is optimized for low output voltage ripple. For low noise applications, TPS62065 can be forced into fixed frequency PWM mode by pulling the MODE pin high. TPS62067 provides an open drain power good output.
In the shutdown mode, the current consumption is reduced to less than 1µA and an internal circuit discharges the output capacitor.
3 MHz Switching Frequency
VINRange from 3.0V to 6V
Up to 97% Efficiency
Power Save Mode/3MHz Fixed PWM Mode
Power Good Output
Output Voltage Accuracy in PWM Mode ±1.5%
Output Capacitor Discharge Function
Typical 18 µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Clock Dithering Supports Maximum 1mm Height Solutions
Available in a 2x2x0.75mm SON
Notebooks, Pocket PCs
Portable Media Players
图2。TPS62065 1.8V 可调输出电压电路图
图3。TPS62067 1.8V 可调输出电压电路图
The TPS62065-67EVM-347 is a fully assembled and tested pair of PCBs for evaluating the TPS62065 and TPS62067 2-A step-down converters. The EVM comes configured with both a TPS62065 IC and a TPS62067 IC; there are two PCBs, one for each respective step-down converter IC.