Features: ` High Efficiency: Up to 95%` Very Low Quiescent Current: Only 40A` 2.25MHz Constant Frequency Operation` High Switch Current: 1.2A on Each Channel` No Schottky Diodes Required` Low RDS(ON) Internal Switches: 0.35` Current Mode Operation for Excellent Line and Load Transient Response` Sh...
LTC3407-2: Features: ` High Efficiency: Up to 95%` Very Low Quiescent Current: Only 40A` 2.25MHz Constant Frequency Operation` High Switch Current: 1.2A on Each Channel` No Schottky Diodes Required` Low RDS(ON...
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The LTC®3407-2 is a dual, constant frequency, synchronous step down DC/DC converter. Intended for low power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors with a profile 1.2mm. Each output voltage is adjustable from 0.6V to 5V. Internal synchronous 0.35, 1.2A power switches provide high efficiency without the need for external Schottky diodes.
A user selectable mode input of LTC3407-2 is provided to allow the user to trade-off noise ripple for low power efficiency. Burst Mode® operation provides high efficiency at light loads, while Pulse Skip Mode provides low noise ripple at light loads.
To further maximize battery life, the P-channel MOSFETs are turned on continuously in dropout (100% duty cycle), and both channels draw a total quiescent current of only 40A. In shutdown, the device draws <1A.