MP2171

5.5V, 1A, 2.6MHz, Synchronous, Step-Down Converter

Datasheet

Description

The MP2171 is a monolithic, step-down, switch-mode converter with integrated, internal power MOSFETs. The MP2171 can achieve up to 1A 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 MP2171 is ideal for a wide range of applications, including automotive infotainment, clusters, telematics, and portable instruments.

The MP2171 requires only a minimal number of readily available, standard external components, and is available in a small TSOT23-8 package.

Features & Benefits

Wide 2.5V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout Mode
Up to 1A Output Current
90mΩ and 50mΩ 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

Active Part Numbers:

MP2171GJ-P MP2171GJ-Z

Evaluation Tools

EV2171-J-00A Evaluation Kit 1A, 5.5V, 2.6MHz, Synchronous Step-Down Switcher Evaluation Board

The EV2171-J-00A is used for demonstrating the performance of MPS’s MP/MPQ2171, a low-voltage, high switching frequency, step-down switcher with built-in power MOSFETs. The MP/MPQ2171 provides up to 1A of highly efficient output with constant-on-time control for fast loop response. The MP/MPQ2171 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/MPQ2171 is available in a TSOT23-8 package.

$50.00
+ tax