MAX15046BAEE+T

The MAX15046BAEE+T is a 40V, high performance, synchronous buck controller in 16 pin QSOP package. It generates an adjustable output voltage from 85% of the input voltage down to 0.6V, supporting loads up to 25A. The device allows monotonic start-up into a pre-biased bus without discharging the output and features adaptive internal digital soft-start. The MAX15046’s adaptive synchronous rectification eliminates the need for an external freewheeling Schottky diode. The device also utilizes the external low-side MOSFET’s on-resistance as a current-sense element, eliminating the need for a current-sense resistor. This protects the DC to DC components from damage during output overloaded conditions or output short circuit faults without requiring a current-sense resistor. The MAX15046 includes a power-good output and an enable input with precise turn-on/turn-off threshold.

• Supply voltage range is 4.5V to 40V or 5V ±10%
• Operating temperature range from -40°C to 125°C
• Adjustable switching frequency (100KHz to 1MHz) with ±10% (1MHz) accuracy
• Adaptive internal digital soft-start
• Cycle by cycle valley-mode current limit with adjustable, temperature compensated threshold
• Monotonic start-up into pre-biased output
• ±1% accurate voltage reference
• Hicc-up mode short circuit protection and overtemperature shutdown
• Sink mode current limit and thermal shutdown

Applications

Power Management, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party