The Future of Analog IC Technology
The MP28200 is a monolithic power-
management unit containing 200mA, high-
efficiency, step-down, switching converters. The
nanoamp quiescent current provides extremely
high efficiency when the load current is down in
the µA range. With minimum input voltage as
low as 2V, the MP28200 allows the system to
operate directly from the battery.
The constant-on-time control scheme provides
fast transient response, high light-load
efficiency, and requires minimal capacitance.
The regulation can be made tight by integrating
an error amplifier to correct the output voltage.
The CTRL pins control the on/off and output
voltage selection functions.
Fault protection features include under-voltage
lockout (UVLO), over-current protection (OCP),
and thermal shutdown.
The MP28200 requires a minimal number of
readily available, standard, external
components and is available in a small QFN-12
Ultra-Low 500nA Iq, High Efficiency,
Wide Input 2V-5.5V, 1.5MHz,
200mA, Step-Down Regulator
Ultra-Low Iq: 500nA
Wide 2.0V to 5.5V Operating Input Range
7 Selectable Output Voltages
Up to 200mA Output Current
1.5MHz Switching Frequency in Continuous
Conduction Mode (CCM)
100% Duty Cycle in Dropout
0.25Ω and 0.25Ω Internal Power MOSFET
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection (SCP) with Hiccup
Over-Temperature Protection (OTP)
Available in a QFN-12 (2mmx2mm)
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.
Efficiency vs.Load Current
0.001 0.01 0.1 1 10
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