MPQ2169B

– 6V, DUAL 1.4A/1.4A OR 2A/0.8A SYNC BUCK REGULATOR, AEC-Q100

MPQ2169B Rev. 1.0

MonolithicPower.com

6

12/20/2021

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© 2021 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 5V, TJ = -40°C to +150°C, typical values are at TJ = 25°C, unless otherwise noted.

Parameters

Symbol

Condition

Min

Typ

Max

Units

Quiescent supply current

IQ

VIN = 5V, VEN = 2V,

VFB = 0.65V, no switching

65

100

μA

Shutdown current

ISHDN

VEN = 0V, TJ = 25°C

0

0.2

μA

VEN = 0V

30

μA

Input under-voltage lockout

(UVLO) threshold

VUVLO

VIN1, VIN2, VCC rising

2.4

2.55

V

Input UVLO hysteresis

VUVLO_HYS

VIN1, VIN2, VCC UVLO

hysteresis

230

mV

Regulated FB voltage

VFB

TJ = 25°C

0.593

0.6

0.607

V

TJ = -40°C to +125°C

0.585

0.6

0.612

V

FB input current

IFB

VFB = 0.65V

0

150

nA

EN high threshold

VEN_H

0.7

0.9

1.1

V

EN low threshold

VEN_L

0.6

0.8

1

V

EN threshold hysteresis

VEN_HYS

100

mV

EN input current

IEN

VEN = 2V

0

150

nA

VEN = 0V

0

100

High-side MOSFET (HS-

FET) on resistance

RDSON_P

VIN = 5V

60

100

mΩ

Low-side MOSFET (LS-FET)

on resistance

RDSON_N

VIN = 5V

25

50

mΩ

SW leakage current

ISW_LK

VEN = 0V, VIN = 6V,

VSW = 0V and 6V, TJ = 25°C

-1

0

+1

μA

HS-FET current limit (8)

IHS_LIMIT

Source

3

4

6.2

A

LS valley current limit (8)

IVALLEY

3.4

A

LS-FET current limit

ILS_LIMIT

Sink

1

A

Switching frequency

fSW

RFREQ = 560k

Ω

350

410

470

kHz

RFREQ = 75k

Ω

1990

2290

2590

kHz

SYNC frequency range

fSYNC

0.35

3

MHz

SYNC rising threshold

VSYNC_R

1.95

2.15

2.35

V

SYNC falling threshold

VSYNC_F

1.5

1.7

1.9

V

SYNC threshold hysteresis

VSYNC_HYS

450

mV

SYNC input current

ISYNC

VSYNC = 5V

13

μA

Phase shift

180

degrees

Minimum on time (8)

tON_MIN

55

ns

Minimum off time (8)

tOFF_MIN

50

ns

Maximum duty cycle

DMAX

100

%

Thermal shutdown threshold

(8)

TD

175

°C

Thermal shutdown hysteresis

(8)

TD_HYS

40

°C

Soft-start charging current

ISS

VSS = 0V

2

3.2

5

μA

Power good (PG) rising

threshold

PGOODVTH-HI

0.85

0.9

0.95

VFB

PG falling threshold

PGOODVTH-LO

0.77

0.82

0.87

VFB

PG rising deglitch time

tPGOOD_R

30

μs

PG falling deglitch time

tPGOOD_F

40

μs

Note:

8) Not tested in production. Guaranteed by design and characterization.