LT3470IDDB#TRMPBF

LT3470 is a micropower step-down DC/DC converter that integrates a 300mA power switch, catch diode and boost diode. It combines Burst Mode and continuous operation to allow the use of tiny inductor and capacitors while providing a low ripple output to loads of upto 200mA. With its wide input range of 4V to 40V, this device can regulate a wide variety of power sources, from 2-cell Li-ion batteries to unregulated wall transformers and lead-acid batteries. Quiescent current in regulation is just 26µA in a typical application while a zero current shutdown mode disconnects the load from the input source, simplifying power management in battery-powered systems. Fast current limiting and hysteretic control protects the device and external components against shorted outputs, even at 40V input. It is used in applications such as automotive battery regulation, power for portable products, distributed supply regulation, industrial supplies, wall transformer regulation.

• Integrated boost and catch diodes
• Input voltage range from 4V to 40V
• Output voltage range from 1.25V to 16V
• Low ripple Burst Mode® operation at light loads, continuous operation at higher loads
• Low output ripple is 10mV
• Quiescent current from VIN is 0.1µA typical at (VSHDN = 0.2V, TA = 25°C, VIN = 10V)
• Switch VCESAT is 215mV typical at (TA = 25°C, VIN = 10V)
• 200mA output current
• Operating temperature range from -40°C to 125°C
• Package style is 8-lead plastic DFN

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