MOQ=5
The AT3408 is a high-efficiency monolithic
synchronous buck regulator using a constant
frequency, current mode architecture. The device is
available in an adjustable version. Supply current with
no load is 40uA and drops to <1uA in shutdown. The
2.5V to 5.5V input voltage range makes the AT3408
ideally suited for single Li-Ion battery powered
applications. 100% duty cycle provides low dropout
operation, extending battery life in portable systems.
PWM/PFM mode operation provides very low output
ripple voltage for noise sensitive applications.
Switching frequency is internally set at 1.5MHz,
allowing the use of small surface mount inductors and
capacitors. Low output voltages are easily supported
with the 0.6V feedback reference voltage.
The AT3408 is offered in a low profile (1mm) 5-pin,
thin SOT package, and is available in an adjustable
version.
