The LM26420 regulator is a monolithic, high-efficiency dual PWM step-down DC-DC
converter. This device has the ability to drive two 2-A loads with an internal 75-mΩ PMOS top
switch and an internal 50-mΩ NMOS bottom switch using state-of-the-art BICMOS technology results in
the best power density available. The world-class control circuitry allow on times as low as 30 ns,
thus supporting exceptionally high-frequency conversion over the entire 3-V to 5.5-V input
operating range down to the minimum output voltage of 0.8 V.
Although the operating frequency is high, efficiencies up to 93% are easy to achieve.
External shutdown is included, featuring an ultra-low standby current. The LM26420 utilizes
current-mode control and internal compensation to provide high performance regulation over a wide
range of operating conditions.
For all available packages, see the orderable addendum at the
end of the data sheet.
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