Description

The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-side switches. The MAX20402/MAX20403 deliver up to 2.5A/3.5Aover a wide 3V to 36V input voltage range. Voltage quality can be monitored by observing the PGOOD signal. These ICs can operate in dropout by running at 99% duty cycle,making them ideal for automotive and industrial applications. The MAX20402/MAX20403 offer externally programmable or internally fixed output voltages of 5V and 3.3V. Fixed internal frequency options of 3MHz/2.1MHz/400kHz areavailable, which allow for small external components and reduced output ripple, and also guarantee no AM interference.When SYNC is low, the MAX20402/MAX20403 automatically enter skip mode at light loads with an ultra-low quiescent current of 10μA at no load. A pin-selectable forced-PWM mode is also available, which helps improve EMI performance. The devices have a spread-spectrum frequency modulation option designed to minimize EMI-radiated emissions due to the modulation frequency. The MAX20402/MAX20403 are available in a small, 3mm x 3mm FC2QFN package and use very few external components.APPLICATIONS Automotive Applications ADAS Systems Radar Modules Infotainment Industrial Applications High-Voltage DC-DC Converters