MP28164 – SINGLE-INDUCTOR, BUCK-BOOST CONVERTER WITH 4.2A SWITCHES

MP28164 Rev. 1.0

www.MonolithicPower.com

4

3/28/2016

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© 2016 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

VIN under-voltage lockout rising

threshold

when IC starts up

1.63

1.7

1.77

V

VIN under-voltage lockout falling

threshold

0.69

V

VCC under-voltage lockout

falling threshold

1.45

1.56

1.67

V

Feedback voltage reference

495

500

505

mV

492.5

500

507.5

mV

Oscillator frequency

1700

2000

2300

kHz

Frequency range for

synchronization

1000

3000

kHz

Steady state current limit

3.5

4.2

5

A

Start-up current limit

1.7

2.5

A

NMOS switch on resistance

22

mΩ

PMOS switch on resistance

27.5

mΩ

Quiescent current

25

μA

3.3

μA

Shutdown current

3

μA

Soft-start time

1.5

ms

EN/MODE input low voltage

0.4

V

EN/MODE input high voltage

1.2

V

EN input current

2.1

μA

0

μA

Power good rising threshold

87.5% 91.5% 95.5%

Power good falling threshold

72%

76%

80%

Power good delay

Low to high

118

μs

High to low

19

Power good sink current

capability

Sink 3mA

0.3

V

Thermal shutdown

(6)

160

°C

Thermal shutdown hysteresis

(6)

20

°C

NOTE:

6)

Guaranteed by characterization, not tested in production.