MP2155 –HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 2.2A SWITCHES

MP2155 Rev. 1.0

www.MonolithicPower.com

3

1/26/2014

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol Condition

Min

Typ

Max

Units

1.8

1.9

V

Under voltage lockout threshold

1.60

V

Feedback voltage

486

496

506

mV

Oscillator frequency

900

1000

1300

kHz

Frequency

range

for

synchronization

1000

2000

kHz

Primary current limit

1.8

2.2

A

Secondary current limit

Isw

1.8

A

NMOS switch on resistance

105

mΩ

PMOS switch on resistance

120

mΩ

Quiescent current

80

μA

Shutdown current

1

μA

MODE input low voltage

0.4

V

MODE input high voltage

1.2

V

EN input low voltage

0.4

V

EN input high voltage

1.2

V

3.1

μA

EN input current

0

μA

Thermal shutdown

(5)

160

℃

Thermal shutdown hysteresis

(5)

20

℃

Notes:

5) Guaranteed by engineering sample Characterization, not tested in production.