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-Q1 utilizes current-mode
control and internal compensation to provide high performance regulation over a wide range of
Because its switching frequency is ensured to be greater than 2 MHz, the
LM26420-Q1 can be used in automotive applications without causing interference in the AM frequency
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