MP2188 – DUAL 3A, 5.5V, 1.2MHz, SYNCHRONOUS STEP-DOWN SWITCHER

MP2188 Rev. 1.01

www.MonolithicPower.com

4

2/2/2016

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol Condition

Min

Typ

Max

Units

-1.5%

0.600 +1.5%

Internal Feedback Voltage

-2%

+2%

V/%

-1.5%

1.1

+1.5%

Fixed Output Voltage

Vo

-1.5%

1.8

+1.5%

V/%

PFET Switch ON Resistance

60

mΩ

NFET Switch ON Resistance

30

mΩ

Switch Leakage

0.1

2

μA

PFET Current Limit

(5)

4.7

5.3

A

183

ON Time

300

ns

Switching frequency

-20%

1200

+20%

kHz

Minimum OFF Time

50

ns

Soft-Start Time

1.3

ms

Soft-Stop Time

1

ms

Power-Good Upper Trip Threshold

FB voltage with respect to the

regulation

+10%

%

Power-Good Lower Trip Threshold

-10%

%

Power-Good Delay

110

μs

Power-Good Sink Current

Capability

Sink 1mA

0.4

V

Power Good Logic High Voltage

4.9

V

Power Good Internal Pull-Up

Resistor

500

kΩ

Under-Voltage Lockout Threshold

Rising

2.0

2.2

2.4

V

Under-Voltage Lockout Threshold

Hysteresis

150

mV

EN Input Logic Low Voltage

0.4

V

EN Input Logic High Voltage

1.2

V

2

μA

EN Input Current

0.1

μA

Supply Current (Shutdown)

0.1

μA

Supply Current (Quiescent)

on

80

μA

Thermal Shutdown

(6)

150

°C

Thermal Hysteresis

(6)

30

°C

Notes:

5) Guaranteed by engineering sample characterization.

6) Guaranteed by design.