MAX8646ETG+

The MAX8646ETG+ is a 6A, 2MHz step-down regulator with integrated switch in 24 pin TQFN package. The high efficiency switching regulator delivers up to 6A load current at output voltages from 0.6V to 0.9 x VIN. The IC operates from 2.35V to 3.6V making it ideal for onboard point-of-load and post regulation applications. Total output error is less than ±1% over load, line and temperature ranges. It operates in fixed-frequency PWM mode with a switching frequency range of 500KHz to 2MHz set by an external resistor. High-frequency operation allows for an all-ceramic capacitor design. The high operating frequency also allows for small-size external components. The low-resistance on-chip nMOS switches ensure high efficiency at heavy loads while minimizing critical inductances. IC comes with a high bandwidth (<gt/> 14MHz) voltage-error amplifier. It is used in ASIC/CPU/DSP core & I/O voltages, POLs, DDR, base-station, RAID control, telecom & networking power supplies.

• Operating temperature range from 40°C to +85°C
• Internal 23Mohm RDS(ON) MOSFETs
• Continuous 6A output current
• Adjustable output from 0.6V to (0.9 x VIN)
• Soft start reduces inrush supply current
• Compatible with ceramic, polymer and electrolytic output capacitors
• VID selectable output voltages 0.6V, 0.7V, 0.8V, 1V, 1.2V, 1.5V, 1.8V, 2V and 2.5V
• Fully protected against overcurrent and overtemperature
• Safe start into pre-biased output
• Sink/source current in DDR applications

Applications

Power Management, Industrial, 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