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  4. Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155 (Monolithic Power Systems, Inc.)
Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155-MP2155
Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155-Monolithic Power Systems, Inc.

Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP2155 is a high efficiency, low quiescent current buck-boost converter that operates with input voltages above, below, or equal to the output voltage. This IC provides a power solution for products powered by single-cell Li-ion or multi-cell alkaline battery applications where the output voltage is within the battery voltage range. The MP2155 uses current mode, fixed frequency PWM control for optimal stability and transient response. A fixed 1MHz switching frequency and integrated low RDS (ON) N-channel and P-channel MOSFETs minimize the solution footprint while maintaining high efficiency. The MP2155 has an optional pulse-skipping mode that reduces switching frequency under light load conditions to maximize battery life. For other low-noise applications where variable frequency power-save modes can cause failures, the logic control input MODE pin forces PWM operation at a fixed frequency under all load conditions. The MP2155 operates with an input voltage of 2V to 5.5V and provides an adjustable output voltage (1.5V to 5V). With a 2.7V to 5.5V input, it can deliver up to 1A of current to the load with a 3.3V output voltage. The MP2155 is available in a small QFN10 - 3 x 3mm package.

■Features and benefits

・High efficiency of up to 95% ・Load disconnection during shutdown ・Input voltage range: 2V to 5.5V ・Adjustable output voltage from 1.5V to 5V ・Load capacity of 3.3V / 1A at Vin of 2.7V to 5.5V ・1MHz switching frequency ・Pulse skip mode at light load - Typical quiescent current of 80μA ・Inner loop compensation for fast response ・Internal soft start ・OTP, Hiccup SCP ・Delivered in a small 3 x 3mm QFN10 package

■Available product numbers

・MP2155GQ-P MP2155GQ-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155

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1 Models of Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155

Image Part Number Price (excluding tax) Iq (typ) (mA) Isw (typ) (A) Vfb (V) Fsw (max) (kHz) Grade Input voltage (max) (V) Input voltage (min) (V)
Buck-boost 2.2A switch built-in, high efficiency, built-in single inductor, buck-boost converter MP2155-Part Number-MP2155

MP2155

Available upon quote

0.08

2.2

0.496

1,000

QFN-10 (3x3)

5.5

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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