EUP3216 ds3216 ver1.0 aug. 2014 1 6a synchronous step-down converter description the EUP3216 is a synchronous, step-down dc-dc converter capable of providing up to 6a output curr ent employing adaptive on-time valley-current mode. the EUP3216 operates from an input voltage range of 3.3 v to 5.5v and provides a regulated output voltage fro m 0.6v to 2v. the internal synchronous power switch increases efficiency and eliminates the need for an external schottky diode. the EUP3216 features three switching frequency setting. it can be externally s et for forced pwm continuous mode or pulse skipping mode. the EUP3216 integrates internal soft-start function , droop support, external tracking support, output so ft discharge, integrated bootstrap switch, power good function, and enable function. EUP3216 features sho rt circuit and thermal protection circuits to increase system reliability. externally mode pin allows for frequency and operation mode choice. the EUP3216 is available in a low profile 20pin 4mmx4mm tqfn package with the exposed pad. typical application circuit features 3.3v to 5.5v power input voltage range minimum external components count 6a available load current 35m integrated fet switches selectable 0.8mhz to 1.2mhz frequency pwm mode and pulse-skip mode integrated complete protection excellent line and load transient response internal soft-start with 1.6ms adjustable output voltage from 0.6v to 2 v available in 20pin 4mm 4mm tqfn package with exposed pad rohs compliant and 100% lead(pb)-free halogen-free applications distributed 3.3v and 5v power supplies high performance dsps, fpgas, asics and microprocessors base station, telecom, and networking equipment power supplies notebook and ultrabook figure 1.
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