LM3677TLX-ADJ National Semiconductor Corporation, LM3677TLX-ADJ Datasheet - Page 18
LM3677TLX-ADJ
Manufacturer Part Number
LM3677TLX-ADJ
Description
3mhz, 600ma Miniature Step-down Dc-dc Converter For Ultra Low Voltage Circuits
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM3677TLX-ADJ.pdf
(20 pages)
- Current page: 18 of 20
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7.
In mobile phones, for example, a common practice is to place
the DC-DC converter on one corner of the board, arrange the
Place noise sensitive circuitry, such as radio IF blocks,
away from the DC-DC converter, CMOS digital blocks
and other noisy circuitry. Interference with noise-
sensitive circuitry in the system can be reduced through
distance.
18
CMOS digital circuitry around it (since this also generates
noise), and then place sensitive preamplifiers and IF stages
on the diagonally opposing corner. Often, the sensitive cir-
cuitry is shielded with a metal pan and power to it is post-
regulated to reduce conducted noise, using low-dropout
linear regulators.
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