MPQ2169B

6V, Dual 1.4A/1.4A or 2A/0.8A, Low-IQ,

Synchronous Buck with PG and SS,

AEC-Q100 Qualified

MPQ2169B Rev. 1.0

MonolithicPower.com

1

12/20/2021

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© 2021 MPS. All Rights Reserved.

DESCRIPTION

The MPQ2169B is an internally compensated,

dual,

pulse-width

modulation

(PWM),

synchronous step-down regulator that operates

from a 2.7V to 6V input voltage (VIN) and

generates an output voltage (VOUT) as low as

0.6V. The MPQ2169B can be configured as a

1.4A/1.4A or 2A/0.8A output current (IOUT)

regulator, and is ideal for powering portable

equipment that runs on a single-cell Li-ion

battery due to its low 65µA quiescent current

(IQ).

The MPQ2169B integrates dual, 60

mΩ, high-

side

MOSFETs

(HS-FETs)

and

25

mΩ

synchronous rectifiers to achieve high efficiency

without

an

external

Schottky

diode.

The

MPQ2169B offers peak current mode control

and internal compensation, and is capable of

low-dropout configurations. Both channels can

operate at 100% duty cycle.

Full protection features include cycle-by-cycle

current limiting and thermal shutdown.

The MPQ2169B requires a minimal number of

readily

available,

standard

external

components, and is available in a QFN-18

(2.5mmx3.5mm) package.

FEATURES

• Cooler Thermals:

o

Below 20°C Operating Junction

Temperature (TJ) Rise at 2A/0.8A,

2.3MHz

o

90% Efficiency (5V to 1.8V, 2A, 2.3MHz)

o

Low-Ohmic BCD FET Technology

• Low Noise EMI and EMC:

o

MeshConnectTM Flip-Chip Package

o

Operates Outside of AM Radio Band

• Reduces Board Size and BOM:

o

Integrated Compensation Network

o

Available in a Small QFN-18

(2.5mmx3.5mm) Package

• Additional Features:

o

Power Good (PG) Output

o

External Soft Start (SS) and Tracking

o

Over-Current Protection (OCP) with

Hiccup Mode

o

External Sync Clock

o

Forced Continuous Conduction Mode

(FCCM)

o

100% Duty Cycle Operation

o

Available in AEC-Q100 Grade 1

APPLICATIONS

• Automotive Infotainment

• Automotive Clusters

• Automotive Telematics

• Battery-Powered Devices

• Portable Instruments

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.