MP2147 – 5.5V, 4A, 1.2MHz, COT, BUCK SWITCHER

MP2147 Rev. 1.1

www.MonolithicPower.com

4

6/8/2016

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© 2016 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max

Units

Supply Current (Quiescent)

40

60

μA

Shutdown Current

0.1

1

μA

IN

Under-Voltage

Lockout

Threshold

2.4

2.55

2.7

V

IN

Under-Voltage

Lockout

Hysteresis

300

mV

Regulated FB Voltage

0.594

0.600

0.606

V

FB Input Current

50

nA

EN High Threshold

1.6

V

EN Low Threshold

0.4

V

2

EN Input Current

0

μA

Internal Soft-Start Time

(5)

1.5

ms

High-Side Switch On-Resistance

22

mΩ

Low-Side Switch On-Resistance

14

mΩ

SW Leakage Current

0

1

μA

High-Side Switch Current Limit

Sourcing

6

A

Sinking, PWM Mode

4

Low-Side Switch Current Limit

(6)

Sinking, PFM Mode

0

A

Oscillator Frequency

0.96

1.2

1.44

MHz

Minimum On Time

50

ns

Minimum Off Time

60

ns

PG UV Threshold Rising

PGTH_Hi

0.9

VFB

PG UV Threshold Falling

PGTH_Lo

0.85

VFB

PG OV Threshold Rising

PGTH_Hi

1.15

VFB

PG OV Threshold Falling

PGTH_Lo

1.1

VFB

PG Delay

140

μs

PG Sink Current Capability

Sink 1mA

0.4

V

PG INTERNEL Pull Up Resistor

500

kΩ

Discharge Resistor

150

Ω

Thermal Shutdown Threshold

(6)

150

°C

Thermal Shutdown Hysteresis

(6)

20

°C

MODE Forced PWM Threshold

1.2

V

MODE PFM Threshold

0.4

V

Notes:

5) Guaranteed by characterization

6) Guaranteed by design.