MIC2606 datasheet(12/20 Pages) MICROCHIP

12 / 20 page

MIC2605/6

DS20006620A-page 12



2021 Microchip Technology Inc. and its subsidiaries.

4.4.2

OUTPUT CAPACITOR

Output capacitor selection is also a trade-off between

performance, size, and cost. Increasing output

capacitance will lead to an improved transient

response, but also an increase in size and cost. X5R or

X7R dielectric ceramic capacitors are recommended

for designs with the MIC2605 and the MIC2606. Y5V

values may be used, but to offset their tolerance

overtemperature, more capacitance is required.

4.4.3

INPUT CAPACITOR

A minimum 1 μF ceramic capacitor is recommended for

designing with the MIC2605 and the MIC2606.

Increasing input capacitance will improve performance

and greater noise immunity on the source. The input

capacitor should be as close as possible to input

voltage pin (VIN) of the device for good noise

performance.

4.4.4

FEEDBACK RESISTORS

The MIC2605 and the MIC2606 each utilize a feedback

pin to compare the output to an internal reference. The

output voltage is adjusted by selecting the appropriate

feedback resistor network values. The R2 resistor

value must be less than or equal to 1 kΩ (R2 ≤ 1 kΩ).

The desired output voltage can be calculated as

follows:

EQUATION 4-3:

VOUT VREF R1

------- 1











Where:

VREF = 1.25V

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