MP28162 – SINGLE-INDUCTOR, BUCK-BOOST CONVERTER WITH 1.5A MOSFETS

MP28162 Rev. 1.0

MonolithicPower.com

4

3/16/2023

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ELECTRICAL CHARACTERISTICS

VIN = VEN = VOUT = 3.3V, TJ = -40°C to +125°C, typical value is tested at 25°C, unless otherwise

noted. (7)

Parameter

Symbol

Condition

Min

Typ

Max

Units

VIN under-voltage lockout

(UVLO) rising threshold

VIN_UVLO_R

Float VCC, rising VIN, test VIN

when the IC starts up

1.55

1.7

1.77

V

VIN UVLO falling threshold

VIN_UVLO_F

VOUT = 3.3V, falling VIN

0.69

V

VCC UVLO falling threshold

VCC_UVLO_F VIN = 1.2V, falling VCC

1.45

1.56

1.67

V

Feedback reference voltage

VREF

TJ = 25°C

495

500

505

mV

TJ = -40°C to +125°C

492.5

500

507.5

mV

Switching frequency

fREQ

1700

2000

2300

kHz

Synchronization frequency

range

1000

3000

kHz

Switching current limit

ISW

1.3

1.5

1.85

A

N-MOSFET on resistance

RDS(ON)_N

SWB, SWC

35

mΩ

P-MOSFET on resistance

RDS(ON)_P

SWA, SWD

45

mΩ

Quiescent current

IQ

VFB = 0.55V, VIN = 2.5V,

VOUT = 3.3V, test VOUT

25

μA

VFB = 0.55V, VIN = 2.5V,

VOUT = 3.3V, test VIN

3.3

μA

Shutdown current

ISD

VEN = 0V, TJ = 25°C

3

μA

Soft-start time (8)

tSS

Internal VREF from 0V to 0.5V

2

ms

EN/MODE low input voltage

0.4

V

EN/MODE high input voltage

1.2

V

EN input current

IEN

VEN = 3.3V

2.1

μA

VEN = 0V

0

μA

Thermal shutdown (8)

TSHDN

160

°C

Thermal shutdown hysteresis (8)

THYS

20

°C

Notes:

7)

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

8)

Not tested in production. Guaranteed by sample characterization.