Features
 Input voltage range from 2.3 V to 5.5 V
 Up to 2 A output current
 Low quiescent current: 15 μA
 Output adjustable from 0.6 V
 1.65 MHz typical switching frequency at TJ =
25°C
 EN for power sequencing
 Low RDS(ON) for internal switches
(Top / Bottom): 120 mΩ / 80 mΩ
 Output discharge function
 100% duty cycle in drop
 Hiccup for short-circuit protection (SCP)
 Stable with low ESR output ceramic
capacitors
 Available in SOT563 and DFN1.6*1.6-6
packages
Applications
 Wireless/Networking cards
 Portable and mobile devices
 Battery-powered devices
 Low-voltage I/O system power
 Solid-state drives (SSDs)
Descriptions
The DIO6905 is a high-efficiency, 1.65 MHz
synchronous step-down DC/DC converter with
power MOSFETs integrated. It can achieve an
output current of 2 A under an input voltage of
2.3 V to 5.5 V and has good load and line
regulation. The output voltage can be adjusted
from 0.6 V.
The DIO6905 adopts the COT architecture to
achieve fast transient responses and simplifies
loop stability. In addition, it operates full
protection features including cycle-by-cycle
current limit and thermal shutdown.
The DIO6905 packaged in SOT563 and
DFN1.6*1.6-6 uses fewer external components,
enabling a cost-effective solution.