General Description
●The LM26420 regulator is a monolithic, high frequency, dual PWM step-down DC/DC converter in a 16 Pin LLP and a 20 Pin eTSSOP package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
●With a minimum of external components, the LM26420 is easy to use. The ability to drive two 2.0A loads with an internal 75 mΩPMOS top switch and an internal 50 mΩNMOS bottom switch using state-of-the-art 0.5 µm BiCMOS technology results in the best power density available.
●Features
●■ Input voltage range of 3.0V to 5.5V
●■ Output voltage range of 0.8V to 4.5V
●■ 2.0A output current per output
●■ High Switching Frequencies
● 2.2MHz (LM26420X)
● 0.55MHz (LM26420Y)
●■ 75mΩPMOS switch
●■ 50mΩNMOS switch
●■ 0.8V, 1.5% Internal Voltage Reference
●■ Internal soft-start
●■ Independent power good for each output
●■ Independent precision enable for each output
●■ Current mode, PWM operation
●■ Thermal Shutdown
●■ Over voltage protection
●■ Start-up into Pre-biased Output Loads
●■ Outputs are 180° out of phase
