DESCRIPTION
The MP2117 is an internally compensated 2.2A
synchronous step-down switcher. The operating
frequency is internally set at 1.25MHz. MP2117
is ideal for powering portable equipment that
runs from a single cell Lithium-Ion (Li+) Battery.
The MP2117 can provide up to 2.2A continuous
load current from a 2.5V to 6V input voltage.
The output voltage can be regulated as low as
0.6V. 100% duty cycle provides low dropout
operation that extends operating time in batteryoperated
systems.
The MP2117 features an integrated high-side
switch and synchronous rectifier for high
efficiency. With peak current mode control and
internal compensation, the MP2117 can be
stabilized with ceramic capacitors and small
inductors. Fault condition protection includes
cycle-by-cycle current limiting and thermal
shutdown.
MP2117 is available in the small 10-pin
3mmx3mm QFN and SOIC-8 packages.

FEATURES
• 2.2A Output Current
• 2.5V to 6V Input Range VIN
• Internal Power MOSFET Switches
• Low Dropout Operation: 100% Duty Cycle
• Up to 90% Efficiency
• Stable with Ceramic Output Capacitors
• 1μA Shutdown Current
• 1.25MHz Switching Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Output Short Circuit Protection
• Internal Soft-start
• Power On Reset Output
• Available in 10-Pin QFN (3mmx3mm) and
8-pin SOIC Packages

APPLICATIONS
• DVD+/-RW Drives
• LCD TV
• PDAs
• Portable Instruments