Datasheet LTC3406AB (Analog Devices) - 7

LTC3406AB
pin FuncTions RUN (Pin 1):
Run Control Input. Forcing this pin above
VIN (Pin 4):
Main Supply Pin. Must be closely decoupled 1.5V enables the part. Forcing this pin below 0.3V shuts to GND, Pin 2, with a 2.2µF or greater ceramic capacitor. down the device. In shutdown, all functions are disabled
V
drawing <1µA supply current. Do not leave RUN floating.
FB (Pin 5):
Feedback Pin. Receives the feedback voltage from an external resistive divider across the output.
GND (Pin 2):
Ground Pin.
SW (Pin 3):
Switch Node Connection to Inductor. This pin connects to the drains of the internal main and synchronous power MOSFET switches.
FuncTional DiaGraM
SLOPE COMP OSC OSC 4 VIN FREQ SHIFT – + – + 5Ω I V COMP FB 5 + 0.6V S Q – EA R Q RS LATCH SWITCHING LOGIC VIN AND ANTI- BLANKING SHOOT- THRU 3 SW RUN CIRCUIT 1 0.6V REF + SHUTDOWN IRCMP– 2 GND 3406AB BD 3406abfb For more information www.linear.com/LTC3406AB 7