 Features
 Low RDS(ON) for internal switches (top/bottom)
260 mΩ / 180 mΩ, 1.0 A
 2.5 V ~ 5.5 V input voltage range
 25 μA typical quiescent current
 High light load efficiency
 High switching frequency 1.65 MHz minimizes
the external components
 Output discharge function
 Operation mode:
DIO60011: Auto mode
DIO60011A: Forced PWM operation
 Fixed frequency COT architecture achieve ultra
fast transient response
 Internal soft start limits the inrush current
 100% dropout operation
 Operating temperature range: -40°C to 85°C
 Applications
 Portable navigation devices
 Set top boxes
 USB dongle
 Media players
 Smart phones
 Description
The DIO60011/A is a high-efficiency synchronous
step-down DC-DC regulator. The DIO60011/A can
achieve up to 1 A continuous output current from a
2.5 V to 5.5 V input voltage with excellent load and
line regulation. The output voltage can be regulated
to as low as 0.6 V.
Constant-on-time (COT) control provides a fast
transient response and eases loop stabilization. The
DIO60011 includes an automatically entered power
save mode to maintain high efficiency down to very
light loads for extending the system battery run-time.
The DIO60011A runs in Forced PWM maintaining a
continuous conduction mode to ensure the least
ripple in the output voltage and a quasi-fixed
switching frequency.
The DIO60011/A is ideal for a wide range of
applications, including portable navigation devices,
set top boxes and media players.