LM3478MM/NOPB

The LM3478 is a versatile Low-Side N-Channel
MOSFET controller for switching regulators. It is
suitable for use in topologies requiring a low side
MOSFET, such as boost, flyback, SEPIC, etc.
Moreover, the LM3478 can be operated at extremely
high switching frequency in order to reduce the
overall solution size. The switching frequency of the
LM3478 can be adjusted to any value between 100
kHz and 1 MHz by using a single external resistor.
Current mode control provides superior bandwidth
and transient response, besides cycle-by-cycle
current limiting. Output current can be programmed
with a single external resistor.
The LM3478 has built-in features such as thermal
shutdown, short-circuit protection, over voltage
protection, etc. Power saving shutdown mode
reduces the total supply current to 5 µA and allows
power supply sequencing. Internal soft-start limits the
inrush current at start-up.