FEATURES
 8V to 30V operating input range
 1200mA output current
 Up to 92% efficiency
 High efficiency (>80%) at light load
 Internal Soft-Start
 400kHz switching frequency
 CC/CV control mode
 Input under voltage lockout
 Input over voltage lockout
 Start-up current run-away protection
 Short circuit protection
 Thermal protection
 4000V ESD

APPLICATIONS
 Distributed Power Systems
 Automotive Systems
 High Voltage Power Conversion
 Industrial Power Systems
 Battery Powered Systems

DESCRIPTION
The SD1003 is a CC/CV control mode
monolithic buck switching regulator. Operating
with an input range of 8-30V, the SD1003 delivers
1200mA of continuous output current, It adopts
NMOS for the main switch and PMOS for the
synchronous switch. The internal synchronous
power switches provide high efficiency without
the use of an external Schottky diode. At light
loads, regulators operate in low frequency to
maintain high efficiency and low output ripple.
Current mode control provides tight load transient
response and cycle-by-cycle current limit.
The SD1003 guarantees robustness with
short-circuit protection, thermal protection,
start-up current run-away protection, and input
under/over voltage lockout.
The SD1003 is available in 5-pin SOT23-5，8-pin
SOP8，8-pin HDIP8，8-pin DIP8 package, which
provides a compact solution with minimal external
components.