MP2276

– 16V, 8A, HIGH EFFICIENCY, SYNC, STEP-DOWN CONVERTER

MP2276 Rev.1.0

www.MonolithicPower.com

4

3/22/2017

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© 2017 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max

Units

VIN Supply Current

Supply current (shutdown)

0

1

μA

Supply current (quiescent)

600

μA

MOSFETs

HS switch on resistance

24

mΩ

LS switch on resistance

VCC = 3V

10

mΩ

Current Limit

Current limit threshold

1.2

V

≥ 2A

36

40

44

μA/A

Low-side negative current limit

-4

A

80

ns

Timer

Switching frequency

FREQ/MODE = AGND

900

1100

1300

kHz

FREQ/MODE =

60.4kΩ to

AGND

530

600

790

kHz

50

ns

180

ns

Over-Voltage (OVP) and Under-Voltage Protection (UVP)

OVP threshold

111%

116%

121%

UVP threshold

75%

80%

85%

Soft Start (SS)

Soft-start time

10% to 90%

1.7

ms

Error Amplifier (EA)

Feedback voltage

792

800

808

mV

Enable (EN)

Enable input rising threshold

1.15

1.21

1.27

V

Enable hysteresis

220

mV

Enable input current

0

μA

Soft shutdown discharge FET

80

Ω

VCC Regulator

VCC under-voltage lockout

threshold rising

2.65

2.8

2.95

V

VCC under-voltage lockout

threshold hysteresis

280

mV

VCC output voltage

3.00

V

VCC load regulation

0.5

%