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MIC2606 bảng dữ liệu(PDF) 12 Page - Microchip Technology

tên linh kiện MIC2606
Giải thích chi tiết về linh kiện  0.5A, 1.2 MHz/2 MHz Wide Input Range Boost Regulators, Each with Integrated Switch and Schottky Diode
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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MIC2606 bảng dữ liệu(HTML) 12 Page - Microchip Technology

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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
R2
------- 1
+
=
Where:
VREF = 1.25V



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