Features
 Low RDS(ON) for internal switches (top/bottom)
63 mΩ/36 mΩ, 3.0 A
 4.5 ~ 24 V input voltage range
 High-efficiency synchronous mode
 Internal soft-start limits the inrush current
 Overcurrent protection
 Thermal shutdown
 Available in the TSOT23-6 package
Applications
 Portable navigation devices
 Set top boxes
 Portable TVs
 LCD TVs
Descriptions
The DIG69300 is a high-efficiency, high-frequency
synchronous step-down DC-DC regulator IC
capable of delivering up to 3 A output currents.
The DIG69300 operates over a wide input voltage
range from 4.5 V to 24 V and integrates with the
main switch and synchronous switch with very
low RDS(ON) to minimize the conduction loss.
The COT architecture with a pseudo-fixed
switching frequency operation provides a fast
transient response and eases loop stabilization.
The DIG69300 operates in pulse skip mode, which
maintains high efficiency during a
light load operation.
Protection features include over-current
protection and thermal shutdown.
The DIG69300 requires a minimal number of
readily-available, standard, external components
and is available in a space-saving TSOT23-6
package.