MAX1965TEEP Maxim Integrated, MAX1965TEEP Datasheet - Page 26

• Manufacturer Part Number: MAX1965TEEP
• Description: Current & Power Monitors & Regulators
• Manufacturer: Maxim Integrated

Some applications need to generate analog and power
outputs at the same voltage. By adding an LC filter to
filter the noise present on an analog output (Figure 10),
one output voltage can provide both analog and power
outputs. The LC filter provides approximately
40dB/decade of attenuation. Select the LC corner fre-
quency (1/2 π √LC) to provide desired attenuation. For
stable operation, the filter inductor (L
Tracking/Sequencing Triple/Quintuple
Power-Supply Controllers
Figure 8. MAX1964 High-Voltage Application Requires Snubber Circuit
26
______________________________________________________________________________________
Output Filtering for Analog Circuits
TO LOGIC
1µF
1µF
C2
C1
100kΩ
R
R
200kΩ
C
8.2nF
POK
COMP
COMP
IN
VL
ILIM
POK
COMP
MAX1964
FILTER
D1
CENTRAL CMPSH-3
) and output
GND
OUT
FB2
FB3
BST
DH
B2
LX
DL
FB
B3
R
C
0.1µF
R
GATE(NH)
BST
GATE(NL)
10Ω
470Ω
10Ω
10nF
C9
R7
4700pF
R
220Ω
30kΩ
10kΩ
C
BE2
R3
R4
BE2
filter capacitor (C
must be selected to provide an overdamped response
to output transients:
Q1
2N3905
2200pF
86.6kΩ
N
N
R
220Ω
10kΩ
C
BE3
H
L
R5
R6
BE3
FAIRCHILD
FDS6912A
C5
10µF
C3
10µF
V
5V AT 100mA
OUT2
1
T1
Q2
TIP30
470µF
C
IN
C
470µF
(
C8
10µF
OUT
R
C6
10µF
V
12V AT 100mA
EP05Q03L
470µF
OUT3
DCR
NIHON
C
INPUT
9V TO 18V
D2
OUT
FILTER
+
4
C7
470µF
R
L
3.3V AT 1A
POWER GROUND
ANALOG GROUND
T1
EC10QS10
ESR
FILTER
1
V
) used to generate the filter
NIHON
OUT1
C
D3
100pF
R
SNUB
300Ω
SNUB
)
2
T1
C
2
FILTER
≥
1