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參數(shù)資料
| 型號： | CS5155H |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | CPU 5-Bit Synchronous Buck Controller |
| 中文描述： | CPU的5位同步降壓控制器 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大?。?/td> | 279K |
| 代理商： | CS5155H |
C
Applications Information: continued
13
4. Connect the ground terminals of the Compensation
capacitor directly to the ground of the fast feedback filter
capacitor to prevent common mode noise from effecting
the PWM comparator.
5. Place the output filter capacitor(s) as close to the load as
possible and connect the ground terminal to pin 14 (LGnd).
6. To implement adaptive voltage positioning, connect
both slow and fast feedback pins 16 (V
FB
) and 8 (V
FFB
) to
the regulator output right at the inductor terminal. Connect
inductor to the output capacitors via a trace with the fol-
lowing resistance:
R
TRACE
=
This causes the output voltage to be +40mV with no load,
and -40mV with a full load, improving regulator transient
response. This trace must be wide enough to carry the full
output current. (Typical trace is 1.0 inch long, 0.17 inch
wide). Care should be taken to minimize any additional
losses after the feedback connection point to maximize reg-
ulation.
7. If DC regulation is to be optimized (at the expense of
degraded transient regulation), adaptive voltage position-
ing can be disabled by connecting to V
FB
pin directly to the
load with a separate trace (remote sense).
8. Place 5V input capacitors close to the switching MOSFET
and synchronous MOSFET.
Route gate drive signals V
GATE(H)
(pin 10) and V
GATE(L)
(pin 12 when used) with traces that are a minimum of 0.025
inches wide.
Figure 20: Layout Guidelines
15
To the negative terminal of the
input capacitors
11
100pF
V
FFB
8
OFF TIME
5
SOFTSTART
V
CC
0.1
m
F
To the negative terminal of the output capacitors
1.0
m
F
V
COMP
80mV
I
MAX
Figure 21: 5V to 3.3V/10A converter.
Figure 22: 5V to 3.3V/10A converter with current sharing.
Figure 23: 3.3V to 2.5V/7A converter with 12V bias.
0.33
m
F
V
ID0
V
ID1
V
ID2
V
ID3
V
CC1
CS5155
C
OFF
V
FB
V
FFB
COMP
Si9410
Si9410
12V
+
+
5
m
H
2.5V/7A
V
CC2
PGnd
3.3k
0.1
m
F
100
m
F/10V x 2
Tantalum
100pF
330pF
1
m
F
33
m
F/25V x 3
Tantalum
3.3V
SS
LGnd
V
GATE(H)
V
GATE(L)
V
ID4
0.33
m
F
V
ID0
V
ID1
V
ID2
V
ID3
V
CC1
CS5155
C
OFF
V
FB
V
FFB
COMP
Si9410
Si4410
1
m
F
5V
+
+
3
m
H
3.3V/10A
V
CC2
PGnd
3.3k
0.1
m
F
100
m
F/10V x 3
Tantalum
100pF
330pF
0.1
m
F
1
m
F
MBRS120
MBRS120
100
m
F/10V x 3
Tantalum
10
W
Remote
Sense
Connect to
other circuits for
current sharing
SS
LGnd
V
GATE(H)
V
GATE(L)
V
ID4
MBRS
120
0.33
m
F
V
ID0
V
ID1
V
ID2
V
ID3
V
ID4
V
CC1
CS5155
C
OFF
V
FB
V
FFB
COMP
Si9410DY
Si4410DY
1
m
F
5V
+
+
3
m
H
3.3V/10A
V
CC2
PGnd
3.3k
0.1
m
F
100
m
F/10V x 3
Tantalum
100pF
330pF
0.1
m
F
1
m
F
MBRS120
MBRS120
100
m
F/10V x 3
Tantalum
SS
LGnd
V
GATE(H)
V
GATE(L)
MBRS
120
Additional Application Circuits
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PDF描述 |
|---|---|
| CS5155GD16 | CPU 5-Bit Synchronous Buck Controller |
| CS5155GN16 | CPU 5-Bit Synchronous Buck Controller |
| CS5156GD16 | CPU 5-Bit Nonsynchronous Buck Controller |
| CS5156GDR16 | CPU 5-Bit Nonsynchronous Buck Controller |
| CS5156 | CPU 5-Bit Nonsynchronous Buck Controller |
相關代理商/技術參數(shù) |
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|---|---|
| CS-5155HD16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| CS-5155HDR16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| CS-5155HN16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| CS5155N16 | 制造商:ON Semiconductor 功能描述: |
| CS-5155N16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
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