yb1520 YOBON TECHNOLOGIES,INC., yb1520 Datasheet - Page 9

• Manufacturer Part Number: yb1520
• Description: Step-up Dc-dc Converter, White Led Driver
• Manufacturer: YOBON TECHNOLOGIES,INC.

The input bypass capacitor C
in Figure 1, must be placed close to the IC.
This will reduce copper trace resistance
which affects input voltage ripple of the IC.
For additional input voltage filtering, a
100nF bypass capacitor can be placed in
parallel with C
frequency noise to ground. The output
capacitor, C
close
connections for the C
increase the series resistance, which
directly effect output voltage ripple.
The feedback network, resister R2 should
be kept close to the FB pin to minimize
copper trace connections that can inject
noise
connection
network should connect directly to an
analog ground plane. The analog ground
plane should tie directly to the GND pin. If
no analog ground plane is available, the
ground
network should tie directly to the GND pin.
Trace connections made to the inductor
and Schottky diode should be minimized to
reduce power dissipation and increase
overall efficiency.
YB1520 Rev.1.4
to
into
connection
the
OUT
for
the
, should also be placed
IN
IC.
the
system.
to shunt any high
Any
for
OUT
feedback
Step-up DC-DC Converter, White LED Driver
the
capacitor can
copper
The
IN
, as shown
feedback
www.yobon.com.tw
resistor
ground
trace
YB1520
9