MP2181

1A, Synchronous, Step-Down Converter with SS & PG

Datasheet

Description

The MP2181 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2181 is available in an ultra-small SOT583 package, and requires a minimal number of readily available, standard external components.

The MP2181 is ideal for a wide range of applications including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

Features & Benefits

Low I_Q: 21μA
1.2MHz Switching Frequency
EN forPowerSequencing
1% FB Accuracy
Wide 2.5V to 5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 1A Output Current
90mΩ and 50mΩ Internal Power MOSFET Switches
100% Duty On
Output Discharge
V_O OVP
External Soft-Start Control
Short-Circuit Protection with Hiccup Mode
Power Good
Available in a SOT583 Package

Active Part Numbers:

MP2181GTL-P MP2181GTL-Z MP2181CGTL-Z

Evaluation Tools

EV2181-TL-00A Evaluation Kit 1A Synchronous Step-down Converter Evaluation Board

The MP2181 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.5V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-bycycle current limiting and thermal shutdown.

The MP2181 is available in an ultra-small SOT583 package and requires a minimal number of readily available standard external components.

The MP2181 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

$25.00
+ tax

Design Resources