MP2131

4A, 5.5V, 1.2MHz, High Efficiency, COT Synchronous Step-Down Converter with PG and Auto Discharge

Datasheet

Description

The MP2131 is a monolithic step-down, switch- mode converter with built-in internal power MOSFETs. It achieves a 4 A continuous output current from a 2.7 V to 5.5 V input voltage with excellent load and line regulation. The MP2131 is ideal for powering portable equipment that run from a single cell lithium-ion (Li+) battery. The output voltage is regulated as low as 0.6 V.
The constant-on-time (COT) control scheme provides fast transient response, high light-load efficiency, and eases loop stabilization.
Fault condition protection includes cyclebycycle current limit and thermal shutdown.
The MP2131 requires a minimum number of readily available, standard, external components and is available in an ultra-small QFN-12 (2mm x 2mm) package.
The MP2131 is ideal for a wide range of applications including portable instruments, small handheld and battery–powered devices, PDAs, and DVD drives.

Features & Benefits

Wide 2.7 V to 5.5 V Operating Input Range
Output Voltage as Low as 0.6 V
4 A Output Current
35 mΩ and 18 mΩ Internal Power MOSFET
Above 96% Peak Efficiency
Above 80% Light Load Efficiency
Low IQ: 19 μA
1.2 MHz Frequency
100% Duty Cycle in Dropout
0.5 ms Internal Soft-Start Time
EN and Power Good for Power Sequencing
Auto Discharge at EN Off
Short-Circuit Protection with Hiccup Mode
Available in a QFN-12 (2mm x 2mm) Package

Active Part Numbers:

MP2131GG-P MP2131GG-Z MP2131GG MP2131XN

Evaluation Tools

EV2131-G-00A Evaluation Kit 4A, 5.5V, 1.2MHz Synchronous Step-Down Switcher Evaluation Board

The EV2131-G-00A is used for demonstrating the performance of MPS’s MP2131, a low-voltage, high switching frequency step-down switcher with built-in power MOSFETs. The MP2131 provides up to 4A highly efficient output with constant-on-time control for fast loop response.

The MP2131 is ideal for powering portable equipment that runs from a single cell Lithium-ion (Li+) battery. The output voltage can be regulated as low as 0.6V. The device offers high efficiency over a wide load range is achieved by scaling down the switching frequency at light-load conditions to reduce the switching-related loss by constant-on-time control. Short-circuit protection and thermal shutdown provide reliable, fault-tolerant operation.

The MP2131 is available in a QFN-12 (2mmx2mm) package.

$25.00
+ tax