MP2166
6V, Dual 2A/2A or 3A/1A,
Low Quiescent Current,
Synchronous Buck with PG and SS
DESCRIPTION
FEATURES
The MP2166 is an internally compensated, dual,
PWM, synchronous, step-down regulator that
operates from a 2.7V to 6V input and generates
an output voltage as low as 0.6V. The MP2166
can be configured as a 2A/2A or 3A/1A output
current regulator and is ideal for powering
portable equipment that runs on a single-cell
lithium-ion (Li+) battery due to a low 60µA
quiescent current.
2.7V to 6V Operating Input Range
2A/2A or 3A/1A Continuous Current
55mΩ/20mΩ RDS(ON)
Programmed Frequency up to 3MHz
External Sync Clock Up to 3MHz
180o Phase Shifted Operation
PG Indicators
External SS and Track
Adjustable Advanced Asynchronous Mode
(AAM) or Forced Continuous Conduction
Mode (CCM)
The MP2166 integrates dual, 55mΩ, high-side
switches and 20mΩ synchronous rectifiers for
high efficiency without an external Schottky
diode. The MP2166 has peak-current-mode
control and internal compensation and is
capable of low dropout configurations. Both
channels can operate at 100% duty cycle.
Peak Efficiency >90%
Output Adjustable from 0.6V to VIN
100% Duty Cycle Operation
60µA Quiescent Current
Cycle-by-Cycle
(OCP)
Over-Current
Protection
Full protection features include cycle-by-cycle
current limit and thermal shutdown.
Short-Circuit Protection (SCP) with Hiccup
Mode and Valley Current Detection
Thermal Shutdown
Available in QFN-18 (2mmx3mm) and QFN-
18 (2.5mmx3.5mm) Packages
The MP2166 requires a minimum number of
readily available, standard, external components
and is available in QFN-18 (2mmx3mm) and
QFN-18 (2.5mmx3.5mm) packages.
APPLICATIONS
Small/Handheld Devices
DVD Drivers
Smartphones and Feature Phones
Battery-Powered Devices
Portable Instruments
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP2166 Rev. 1.0
3/14/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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