MAX16935RAUE/V+, DC/DC CONV, BUCK, 2.2MHZ, 125DEG C

The MAX16935RAUE/V+ from Maxim Integrated Products is a automotive 36V, 3.5A, 2.2MHz step down converter with 28µA quiescent current in 16 TSSOP package. It is integrated high and low side MOSFETs designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light load applications. The switching frequency is resistor programmable from 220KHz to 2.2MHz and can be synchronized to an external clock. The FPWM mode is extremely useful for power supplies designed for RF transceivers. Protection features include cycle by cycle current limit and thermal shutdown with automatic recovery. The wide input voltage range along with its ability to operate at 98% duty cycle during undervoltage transients make the device ideal for automotive and industrial applications. Typical application includes point-of-load applications, distributed DC power systems, navigation and radio head units.

• 3.5V to 36V input voltage range (42V tolerant), enable I/P compatible from 3.3V logic level to 42V
• Automotive operating temperature range from -40°C to +125°C
• Off spread spectrum, 1 to 10V (FB connected to resistive drivers), 5V fixed (FB connected to bias)
• Integration and high switching frequency saves space
• 180° out of phase clock O/P at SYNCOUT enables cascaded power supplies for increased power output
• Spread spectrum frequency modulation reduces EMI emissions
• Robust performance supports wide range of automotive applications
• Thermal-shutdown protection
• Automotive grade 1 AEC-Q100 qualified
• Power-good output allows power-supply sequencing

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