The LM2694 Step Down Switching Regulator features all of the functions needed to
implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This
buck regulator contains an N-Channel Buck Switch, and is available in the 3 x 3 thermally enhanced
WSON-10 package and a TSSOP-14 package. The feedback regulation scheme requires no loop
compensation, results in fast load transient response, and simplifies circuit implementation. The
operating frequency remains constant with line and load variations due to the inverse relationship
between the input voltage and the on-time. The valley current limit results in a smooth transition
from constant voltage to constant current mode when current limit is detected, reducing the
frequency and output voltage, without the use of foldback. Additional features include: VCC
under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle
limiter.
The LM2694 Step Down Switching Regulator features all of the functions needed to
implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This
buck regulator contains an N-Channel Buck Switch, and is available in the 3 x 3 thermally enhanced
WSON-10 package and a TSSOP-14 package. The feedback regulation scheme requires no loop
compensation, results in fast load transient response, and simplifies circuit implementation. The
operating frequency remains constant with line and load variations due to the inverse relationship
between the input voltage and the on-time. The valley current limit results in a smooth transition
from constant voltage to constant current mode when current limit is detected, reducing the
frequency and output voltage, without the use of foldback. Additional features include: VCC
under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle
limiter.