MP2499M – 36V, 3A MAX, SYNCHRONOUS BUCK CONVERTER

MP2499M Rev 1.0

www.MonolithicPower.com

4

5/1/2018

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Supply current (shutdown)

10

μA

Supply current (quiescent)

0.7

0.9

mA

HS switch on resistance

85

150

mΩ

LS switch on resistance

55

105

mΩ

Switch leakage

1

μA

Current limit

Under 40% duty cycle

4

6

8

A

Oscillator frequency

200

270

340

kHz

Foldback frequency

70

kHz

97

%

70

ns

Sync frequency range

0.2

2.4

MHz

ISENSE reference voltage

94

118

142

mV

Line drop compensation

current

Ω,

4

6

8

μA

Feedback voltage

780

792

804

mV

776

792

808

Feedback current

10

100

nA

EN/SYNC rising threshold

1.15

1.4

1.65

V

EN/SYNC falling threshold

1.05

1.25

1.45

V

EN/SYNC threshold hysteresis

150

mV

threshold rising

4.2

4.5

4.8

V

threshold-falling

4

4.3

4.6

V

threshold hysteresis

200

mV

VCC regulator

4.6

4.9

5.2

V

VCC load regulation

1.5

4

%

Soft-start period

1.6

ms

170

°C

30

°C

NOTES:

5) Not tested in production. Guaranteed by over-temperature correlation.

6) Guaranteed by design and engineering sample characterization.