LM2694
www.ti.com SNVS444A – MAY 2006 – REVISED APRIL 2013 LM2694 30V, 600 mA Step Down Switching Regulator
Check for Samples: LM2694 FEATURES DESCRIPTION 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 NChannel 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 undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter. 1 2 Integrated N-Channel Buck Switch
Integrated Start-Up Regulator
Input Voltage Range: 8V to 30V
No Loop Compensation Required
Ultra-Fast Transient Response
Operating Frequency Remains Constant with …
