ap1627 ETC-unknow, ap1627 Datasheet - Page 4

• Manufacturer Part Number: ap1627
• Description: High-efficiency Inverting Controller
• Manufacturer: ETC-unknow

High-Efficiency Inverting Controller
Designing a PC Board
Good PC board layout is important to achieve
optimal performance from the AP1627. Poor design
can cause excessive conducted and/or radiated
noise. Conductors carrying discontinuous currents
and any high-current path should be made as short
and wide as possible. A separate low-noise ground
plane containing the reference and signal grounds
should connect to the power-ground plane at only
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Applications Information
Marking Information
Part Number
Logo
1627
(Top View)
YM X
4/5
one point to minimize the effects of power-ground
currents. Typically, the ground planes are best
joined right at the IC.
Keep the voltage-feedback network very close to
the IC, preferably within 0.2in (5mm) of the FB pin.
Nodes with high dV/dt (switching nodes) should be
kept as small as possible and should be routed
away from high-impedance nodes such as FB.
Date code:
ID code: internal
M: Month (A~L)
Y: Year : 0~9
Rev. 1.0 Sep 22, 2005
AP1627