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MPQ2143H

Industrial Grade, 3A, 5.5V, 1.2MHz, 40mΩ IQ, COT Synchronous Step-Down Switcher AEC-Q100 Qualified

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MPQ2143H

MPQ2143H

Industrial Grade, 3A, 5.5V, 1.2MHz, 40mΩ IQ, COT Synchronous Step-Down Switcher AEC-Q100 Qualified

Datasheet

Description

The MPQ2143H is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
Constant-on-time control provides fast transient response and eases loop stabilization. Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown.
The MPQ2143H is available in small QFN-10 package and requires only a minimal number of readily-available standard external components.
The MPQ2143H is ideal for a wide range of applications including high-performance DSPs, FPGAs, and portable instruments.

Features & Benefits

Wide 2.5V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Up to 3A Output Current
80mΩ and 40mΩ Internal Power MOSFET Switches
Default 2.0MHz Switching Frequency
EN and Power-Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection
Auto Discharge at Power Off
Short-Circuit Protect with Hiccup Mode
Stable with Low-ESR Output Ceramic Capacitors
Available in QFN-10 (2mmx3mm) Package

Active Part Numbers:

MPQ2143HGD-P MPQ2143HGD-Z

Meaning of P & Z

Recommended Inductors

Low-Profile Molded Inductor 0.33µH

Inductor Selector Tool

*Based on Nominal Values

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Standard Pricing

In stock

MPQ2143HGD-Z MPQ2143HGD-P

Package: QFN-10 (2x3)

5,000 per Reel

Buy Now Price $1.32 1K

Quantity Unit Price
1

$2.77
10

$2.48
100

$2.08
250

$1.98
500

$1.52
1K

$1.32

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In stock now: 1,500

Order now, up to 1,500 estimated to ship by 29 Jan, 2026

Lead Time For Additional Quantities

Additional quantities estimated to ship by 07 Feb, 2026

Arrives 3-4 business days. Shipping only $5 per order.

200 Max per Company.
Limited Inventory to support product development.

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Technical Forum

Questions answered by MPS engineers in 24h

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Hello, Can NC pins 1, 9, 19, and 26 be connected to PGND on this chip? Please let me know. Regards, Tony 1203×248 59.1 KB

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