EVM3811-G-00A 2.3-5.5V, 1A Synchronous Step-down Switcher Evaluation Board QFN10

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EVM3811-G-00A 2.3-5.5V, 1A Synchronous Step-down Switcher Evaluation Board QFN10

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pMPS EVM3811-G-00A — Synchronous Step-down Switcher, 2.3-5.5V input, 1 A output, QFN10./p

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MPS Step-Down QFN10 Power Management Evaluation Boards

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EVM3811-G-00A 2.3-5.5V, 1A Synchronous Step-down Switcher Evaluation Board QFN10

The MPS EVM3811-G-00A is an evaluation board built around the MPM3811 for bench characterisation of the device in its intended topology. It operates from a 2.3 V to 5.5 V input, is rated for 1 A and switches at 2.2 MHz. The board carries the device in its QFN10 package.

The MPM3811 is a monolithic step-down switch mode converter with built-in power MOSFETs and inductor.

Key Specifications

Part Number	EVM3811-G-00A
Board For	MPM3811
Board Type	Evaluation / demonstration board
Function	Synchronous Step-down Switcher
Input Voltage	2.3 V to 5.5 V
Current Rating	1 A
Switching Frequency	2.2 MHz
Peak Efficiency	91%
Package	QFN10
Ordering Codes	EVM3811-G-00A

Features

Up to 91% Peak Efficiency
Wide 2.3V to 5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
1A Output Current
120mΩ and 80mΩ Internal Power MOSFET.
2.2MHz Frequency
EN for Power Sequencing
Cycle-by-Cycle Over Current Protection
0.5ms Internal Soft-Start Time

Evaluation Board

Design Notes

The board ships in a default configuration; check the jumper and resistor options against the user guide before applying power.
Respect the input terminal rating — most faults on evaluation boards come from an supply above the marked limit.
Test points on the switching node and output are for a short-ground probe, not for a long oscilloscope lead.
Where a GUI is supported, connect the dongle before power-up so the device enumerates on the I²C bus.