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  4. High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164 (Monolithic Power Systems, Inc.)
High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164-MPQ28164
High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164-Monolithic Power Systems, Inc.

High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164
Monolithic Power Systems, Inc.

About This Product

■Summary

The MPQ28164 is a high efficiency, low quiescent current buck-boost converter that operates with input voltages above, equal to, or below the output voltage. The MPQ28164 provides a compact solution for products powered by single-cell lithium-ion or multi-cell alkaline batteries with output voltages within the battery voltage range. The MPQ28164 uses current mode control with a fixed PWM frequency for optimal stability and transient response. A fixed 2MHz switching frequency and integrated low RDS (ON) MOSFET minimize the solution footprint while maintaining high efficiency. To maximize battery life as possible, the MPQ28164 uses an optional pulse-skipping mode that reduces the switching frequency under light load conditions. In other low-noise applications where pulse-skipping mode may cause failures, a high logic input on the MODE/SYNC pin ensures fixed frequency PWM operation under all load conditions. The MPQ28164 operates with an input voltage of 1.2V to 5.5V and provides an adjustable output voltage of 1.5V to 5V. With a 2.5V to 5.5V input, the IC can deliver 2A of current to the load with a 3.3V output voltage. The MPQ28164 is available in a QFN-11 (2mm x 3mm) package.

■Features and benefits

・Minimum start-up input voltage of 1.8V ・Input working range from 1.2V to 5.5V ・1.5V to 5V output range ・4.2A switching current limit ・3.3V/2A load capacity from 2.5V to 5.5V input power supply ・2MHz fixed or external synchronous rectification switching frequency ・Selectable PSM and PWM modes ・Typical 25μA quiescent current ・High efficiency of up to 95% ・Load disconnection during shutdown ・Internal soft start (SS) and compensation ・Power good indicator ・Hiccup mode for short circuit protection (SCP) ・Overheat protection (OTP) ・Delivered in small QFN-11 (2mm x 3mm) package

■Available product numbers

・MPQ28164GD MPQ28164GD-Z MPQ28164GD-P ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164

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1 Models of High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164

Image Part Number Price (excluding tax) Iq (typ) (mA) Isw (typ) (A) Vfb (V) Grade Input voltage (max) (V) Input voltage (min) (V)
High-efficiency buck-boost converter with 4.2A switch and built-in single inductor MPQ28164-Part Number-MPQ28164

MPQ28164

Available upon quote

0.025

4.2

0.5

QFN-11 (2x3)

5.5

1.2

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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