Microchip Technology MIC23350, Руководство пользователя

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Installation and Operation
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2018 Microchip Technology Inc. DS50002833A-page 11
FIGURE 2-2: MIC23350 Evaluation Board Setup.
2.3.1.3 ADJUSTING THE OUTPUT VOLTAGE
There is no need for a resistor divided network on the MIC23350 device. The output
voltage is simply selected before the power-up, through the V
SEL1
and V
SEL2
pins.
Table 2-1 displays the possible combinations.
The oscilloscope screen capture in Figure 2-3 displays the MIC23350 device’s
switching waveforms during normal operation, when supplied from a 5V input, at full
load (3A).
–
+
Oscilloscope
CH1 CH2
Power
Supply
A-meter
V-meter
Load
TABLE 2-1: OUTPUT VOLTAGE SETTINGS
V
SEL2
V
SEL1
V
OUT
GND GND 0.6V
GND OPEN 0.8V
GND V
IN
0.9V
OPEN GND 1.0V
OPEN OPEN 1.2V
OPEN V
IN
1.5V
V
IN
GND 1.8V
V
IN
OPEN 2.5V
V
IN
V
IN
3.3V