MCP1665 12V Output Boost Regulator Evaluation Board User’s Guide

DS50002686A-page 12

 2017 Microchip Technology Inc.

FIGURE 2-1:

MCP1665 Evaluation Board Schematic.

2.2

GETTING STARTED

The MCP1665 12V Output Boost Regulator Evaluation Board is fully assembled and

tested to evaluate and demonstrate the MCP1665 product capabilities. This board

requires the use of external laboratory supplies and load.

2.2.1

Power Input and Output Connection

2.2.1.1

POWERING THE MCP1665 12V OUTPUT BOOST REGULATOR

EVALUATION BOARD

The MCP1665 12V Output Boost Regulator Evaluation Board was designed to

evaluate the MCP1665 device.

Soldered test points and screw terminal blocks are available for the input voltage

connections and for load connections. The switch peak current limit will provide a safe

maximum current value. The maximum output current for the converter varies with

input and output voltages; refer to Figure 2-3 or the MCP1665 data sheet for more

information on the maximum output current.

2.2.1.2

BOARD POWER-UP PROCEDURE

1. Connect the input supply as shown in Figure 2-2. The input voltage should not

be higher than 5V.

negative (–) side to ground (GND).

3. The MODE SELECT switch SW1 can be used to change between the two power

saving modes:

- PFM/PWM when the switch is in PFM position

- PWM only, when the switch is in PWM position

MODE

GND

SW

12V

10μF

10μF

4.7 μH

180 k



20 k



GND

+

-

GND

+

-

MCP1665

40V, 2A

3V to 5V

SW1

EN

JEN1

1μF

10μF

330μF

470μF

10μF

10μF

10μF

SW