LM22677EVAL

LM22677 5A SIMPLE SWITCHER Regulator w/ Freq Adj or Synch and Precision Enable EVM

LM22677EVAL

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Overview

The LM22677 evaluation board is designed to demonstrate the capabilities of the LM22677 switching regulator. The LM22677 evaluation board schematic shown in Figure 1 is configured to provide an output voltage of 3.3V up to 5A load current with an input voltage range of 4.5V to 42V. Due to the low RDS(ON) of the integrated N-channel MOSFET and maximum duty-cycle limitations, the minimum input voltage of 4.5V will only provide a 3.3V output voltage for load currents up to 500 mA. At 5.5V input voltage 3A of output current is possible while maintaining 3.3V of output voltage. For load currents higher than 3A, an input voltage of 6.5V or higher is required. The typical operating frequency is 500 kHz. The evaluation board is designed to operate at ambient temperatures up to 30°C.

Buck converters (integrated switch)
LM22677 SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down DC/DC Switching Reg. with Frequency Synchronization LM22677-Q1 5A SIMPLE SWITCHER, Step-Down Voltage Reg. with Synchronization or Adjustable Switching Frequency

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Evaluation board

LM22677EVAL/NOPB — LM22677 5A SIMPLE SWITCHER Regulator w/ Freq Adj or Synch and Precision Enable EVM

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Technical documentation

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Type Title Date
* EVM User's guide AN-1892 LM22677 Evaluation Board (Rev. D) Apr. 24, 2013
Certificate LM22677EVAL/NOPB EU Declaration of Conformity (DoC) Jan. 02, 2019

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