MP3221

–2.7A, 1.2MHZ, HIGH-EFFICIENCY STEP UP CONVERTER WITH INPUT DISCONNECT

MP3221 Rev. 1.0

www.MonolithicPower.com

3

9/23/2013

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Operating Input Voltage

2.5

6

V

IN Under Voltage Lockout

2.0

2.2

2.4

V

IN

Under

Voltage

Lockout

Hysteresis

225

mV

Shutdown Current

0.15

µA

Quiescent Current

No Switching

270

µA

Switching Frequency

1

1.2

1.4

MHz

Minimum On time

(5)

80

ns

Maximum Duty Cycle

90

%

EN Input High Voltage

1.3

V

EN Input Low Voltage

0.5

V

EN Input Bias Current

4

µA

FB Voltage

0.780

0.796

0.812

V

FB Input Bias Current

–50

–10

nA

FAULT

Detection

Threshold

Voltage

Step-up Converter Fails

110

150

185

mV

FAULT Pull Down Current

85

115

145

µA

FAULT Pin Output Low Voltage

0.3

V

SW On Resistance

88

mΩ

SW Current Limit

Duty Cycle = 40%

2.7

3.7

5.2

A

SW Leakage

1

µA

Thermal Shutdown

(5)

150

C

Thermal Shutdown Hysteresis

(5)

20

C

Notes:

5) Guaranteed by engineering sample characterization. not production tested.