2.5 - 5.5V, 3A, 2.3MHz, High Efficiency,
Synchronous Step-Down Converter
with MODE Pin in Small 2x2mm QFN Package
The MP2164 is a monolithic, step-down, switch-
mode converter with built-in, internal power
MOSFETs that can achieve 3A of continuous
output current from a 2.5V to 5.5V input voltage
rangewith excellent load and line regulation.
The output voltage can be regulated as low as
0.6V. The MP2164 is ideal for powering
portable equipment that run on a single-cell
Lithium-ion (Li+) battery.
The constant-on-time (COT) control scheme
provides fast transient response, high light-load
efficiency, and easy loop stabilization.
Full protection features include output over-
voltage protection (OVP), cycle-by-cycle current
limiting, and thermal shutdown.
The MP2164 is available in a QFN-12
More than 80% Light-Load Efficiency
Forced PWM and Auto PFM Option
Wide 2.5V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
3A Output Current
32mΩ and 20mΩ Internal Power MOSFET
Internal Soft Start (SS)
Short-Circuit Protection (SCP) with Hiccup
Stable with Low ESR Output Ceramic
Available in a QFN-12 (2mmx2mm)
Low-Voltage I/O System Power
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website under
Quality Assurance. “MPS” and “The Future of Analog IC Technology” are
registered trademarks of Monolithic Power Systems, Inc.
2.5 V to 5.5V
1.2V / 3A
Efficiency vs. Output Current
VIN = 5V, DCR = 14mΩ
OUTPUT CURRENT (A)
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