Datasheet

VOUT
VIN
LMZ35003
VADJ
AGND PGND
V
OUT
V
IN
PWRGD
RT/CLK
INH/UVLO
COMP
STSEL
C
IN1
R
SET
C
OUT1
R
UVLO1
R
UVLO2
C
OUT2
C
IN2
R
RT
SS/TR
LMZ35003
SNVS988 –JULY 2013 www.ti.com
APPLICATION INFORMATION
LMZ35003 OPERATION
The LMZ35003 can operate over a wide input voltage range of 7V to 50V and produce output voltages from 2.5V
to 15V. The performance of the device varies over this wide operating range, and there are some important
considerations when operated near the boundary limits. This section offers guidance in selecting the optimum
components depending on the application and operating conditions.
The user must select three primary parameters when designing with the LMZ35003.
• Output Voltage
• UVLO Threshold
• Switching Frequency
The adjustment of each of these parameters can be made using just one or two resistors. Figure 25 below shows
a typical LMZ35003 schematic with the key parameter-setting resistors labeled.
Figure 25. LMZ35003 Typical Schematic
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