- Stock: In Stock
- Brand: Unbranded
- Model: 1-CHIP0614
- SKU: 1-CHIP0614
Realtime Stock
Controller IC Chip - LDPR LT3470AEDDB LT3470A chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0614)
Micropower Buck Regulator with Integrated Boost and Catch Diodes
The LT®3470A is a micropower step-down DC/DC converter that integrates a 440mA power switch, catch diode and boost diode into low profi le 2mm × 3mm DFN package. The LT3470A combines Burst Mode and continuous operation to allow the use of tiny inductor and capacitors while providing a low ripple output to loads of up to 250mA. with its wide input range of 4V to 40V, the LT3470A 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 35mA 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 LT3470A and external components against shorted outputs, even at 40V input. The LT3470A has higher output current and improved start-up and dropout performance compared to the LT3470.
n Low Quiescent Current: 35mA at 12VIN to 3.3VOUT n Integrated Boost and Catch Diodes n Input Range: 4V to 40V n 3.3V at 250mA from 4V to 40V Input n 5V at 250mA from 5.7V to 40V Input n Low Output Ripple: <10mV n <1mA in Shutdown Mode n Output Voltage: 1.25V to 16V n Hysteretic Mode Control – Low Ripple Burst Mode® Operation at Light Loads – Continuous Operation at Higher Loads n Solution Size as Small as 50mm2 n Low Profi le (0.75mm) 2mm × 3mm Thermally Enhanced 8-Lead DFN Package
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