MP2117

1.25MHz, 2.2A Synchronous

Step-Down Switcher

END OF LIFE, REFER TO MP1605

MP2117 Rev. 0.92

www.MonolithicPower.com

1

6/20/2022

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© 2023 MPS. All Rights Reserved.

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 battery-

operated 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 V

IN

• 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

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks

of Monolithic Power Systems, Inc.

TYPICAL APPLICATION