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品質

MP2172

5.5V, 2A, 2.6MHz, Synchronous, Step-Down Switcher

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Datasheet

概要

The MP2172 is a monolithic, step-down, switch-mode converter with integrated, internal, power MOSFETs. The MP2172 can achieve up to 2A of 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 (COT) control provides fast transient response and eases loop stabilization. Full protection features include cycle-by-cycle current limiting and thermal shutdown.

The MP2172 is ideal for a wide range of applications, including automotive infotainment, clusters, telematics, and portable instruments.

The MP2172 requires only a minimal number of readily available, standard, external components and is available in a small TSOT23-8 package.

機能と利点

Wide 2.5V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Up to 2A Output Current
80mΩ and 45mΩ Internal Power MOSFET Switches
Default 2.6MHz Switching Frequency with 3.3V Input and 1.8V Output
EN and Power Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection (OCP)
Auto Discharge at Power-Off
Short-Circuit Protection (SCP) with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a TSOT23-8 Package

Evaluation Tools

EV2172-J-00A Evaluation Kit 2A, 5.5V, 2.6MHz, Synchronous Step-Down Switcher Evaluation Board

The EV2172-J-00A is used for demonstrating the performance of MPS’s MP/MPQ2172, a low-voltage, high switching frequency, step-down switcher with built-in power MOSFETs. The MP/MPQ2172 provides up to 2A of highly efficient output with constant-on-time control for fast loop response. The MP/MPQ2172 is ideal for powering portable equipment that runs from a single cell Lithium-ion (Li+) battery. The output voltage can be regulated to as low as 0.6V.

High power efficiency over a wide load range is achieved by scaling down the switching frequency at light load to reduce the switching-related loss by constant-on-time control. Short circuit and thermal shutdown provides reliable, fault-tolerant operation. The MP/MPQ2172 is available in a TSOT23-8 package.

￥5,432.50
+ tax