MP28200

Wide Input 2V-5.5V, 1.5MHz,

200mA, Step-Down Regulator

MP28200 Rev.1.0

www.MonolithicPower.com

1

10/10/2016

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© 2016 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

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

(2mmx2mm) package.

FEATURES

 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

Switches

 Cycle-by-Cycle

Over-Current

Protection

(OCP)

 Short-Circuit Protection (SCP) with Hiccup

Mode

 Over-Temperature Protection (OTP)

 Available

in

a

QFN-12

(2mmx2mm)

Package

APPLICATIONS

 Wearables

 IOT

 Portable Instruments

 Battery-Powered Devices

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.

TYPICAL APPLICATION

Efficiency vs.Load Current

30

40

50

60

70

80

90

100

0.001 0.01 0.1

1

10

100 1000