Installation and Operation
2015 Microchip Technology Inc. DS50002364A-page 17
2.2 GETTING STARTED
The MCP1663 9V/12V/24V Output Boost Regulator Evaluation Board is fully
assembled and tested to evaluate and demonstrate the MCP1663 product. 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 MCP1663 9V/12V/24V OUTPUT BOOST REGULATOR
EVALUATION BOARD
The MCP1663 9V/12V/24V Output Boost Regulator Evaluation Board was designed
to be used to evaluate the MCP1663 device. The package selected is SOT-23.
Soldered test points are available for input voltage connections.
Soldered test points are available to connect a load. The switch peak current limit will
provide a safe maximum current value. The maximum output current for the converter
will vary with input and output voltages; refer to Figure 2-3 or the MCP1663 data sheet
for more information on the maximum output current.
2.2.1.2 BOARD POWER-UP PROCEDURE
TOP CIRCUIT
1. Connect the input supply as shown in Figure 2-2. The input voltage should not
be higher than 5.5V.
2. Connect system load to V
OUT
and GND terminals; maximum load varies with
input and output voltage. Connect the (+) side of the load to V
OUT
and the
negative (-) load to ground (GND).
3. The “VOUT SELECT” switch can be used to modify the output voltage between
two values:
- 9V, when the switch is in OFF position
- 12V, when the switch is in ON position
BOTTOM CIRCUIT
1. Connect the input supply as shown in Figure 2-2.
2. The MCP1663 can be used in the extended input voltage range 9V - 16V.
3. Connect system load to V
OUT
and GND terminals; maximum load varies with
input and output voltage. Typically, the MCP1663 can supply a 24V output with
500 mA from a 12V input source at room temperature. Connect the (+) side of
the load to V
OUT
and the negative (-) load to ground (GND).
4. There are two distinct methods that can be used to extend the input voltage
range:
- Using an LDO to provide the necessary low voltage (V
DD
) bias (jumper on J1
in “LDO” position)
- Using a Zener diode (jumper on J1 in “Zener” position)
