MP8796B datasheet(7/52 Pages) MPS

7 / 52 page

MP8796B – 16V, 30A, SYNCHRONOUS STEP-DOWN CONVERTER WITH PMBUS

MP8796B Rev. 1.0

www.MonolithicPower.com

1/19/2020

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

ELECTRICAL CHARACTERISTICS

VIN = 12V, TJ = -40°C to +125°C(7), typical value is tested at TJ = 25°C, unless otherwise noted.

Parameters

Symbol

Condition

Min

Typ

Max

Units

VIN Supply Current

Supply current (quiescent)

IIN

VCTRL = 0V

2.5

MOSFET

RDS(ON)

RONHS

4.4

mΩ

RONLS

1.5

Switch leakage

SWLKG_HS

SW = 0V

0.1

μA

SWLKG_LS

SW = 12V

Output Current Limit

Output current limit (inductor

valley)

ILIM_VALLEY

D7h = 0x14

Min output current limit

(inductor valley) programmable

value (6)

ILIM_VALLEY_MIN

1.5

Max output current limit

(inductor valley) programmable

value

ILIM_VALLEY_MAX

Min output over-current

programmable value (6)

ILIM_DC_MIN

Min output over-current warning

programmable value (6)

Low-side negative current limit

in OVP

ILIM_NEG_OVP

D5h[2] = 1b’0

-13

D5h[2] = 1b’1

-20

Low-side negative current limit

in OSM (6)

ILIM_NEG_OSM

-10

Frequency and Timer

Switching frequency (6)

fSW

VO = 1V, IO = 0A, TA = 25°C,

(D2h[2:1] = 2b’00)

280

400

520

kHz

VO = 1V, IO = 0A, TA = 25°C,

(D2h[2:1] = 2b’01)

480

600

720

kHz

VO = 1V, IO = 0A, TA = 25°C,

(D2h[2:1] = 2b’10)

680

800

920

kHz

VO = 1V, IO = 0A, TA = 25°C,

(D2h[2:1] = 2b’11)

850

1000

1150

kHz

Minimum on time (6)

tON_MIN

fSW = 1000kHz, VO = 0.6V

Minimum off time (6)

tOFF_MIN

VFB = 580mV

220

MP8796B Datasheet(PDF) 7 Page - Monolithic Power Systems

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