MIC2288 Micrel Semiconductor, MIC2288 Datasheet - Page 8

• Manufacturer Part Number: MIC2288
• Description: 1A 1.2 MHZ PWM BOOST CONVERTER IN THIN SOT 23 AND 2 X MLF
• Manufacturer: Micrel Semiconductor

MIC2288
Input capacitor
A minimum 1 F ceramic capacitor is recommended for
designing with the MIC2288. Increasing input capacitance
will improve performance and greater noise immunity on the
source. The input capacitor should be as close as possible to
the inductor and the MIC2288, with short traces for good
noise performance.
M9999-021904
8
Feedback Resistors
The MIC2288 utilizes a feedback pin to compare the output
to an internal reference. The output voltage is adjusted by
selecting the appropriate feedback resistor values. The de-
sired output voltage can be calculated as follows:
where V
V
OUT
REF
is equal to 1.24V.
V
REF
R2
R1
1
February 2004
Micrel