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參數資料
| 型號： | 108847252 |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 22/24頁 |
| 文件大小： | 861K |
| 代理商： | 108847252 |
Data Sheet
June 2001
Tyco Electronics Corp.
7
3.3 Vdc and 5.0 Vdc Input, 1.5 Vdc - 3.3 Vdc Output, 5A
Austin Lite Non-Isolated SMT DC - DC Power Modules:
Input/Output Decoupling (continued)
1-0253
Figure 3. Load Transient Response Measuring Circuit
CTRL
COM
VRM
VIN
VOUT
VIN
+
–
CBULK
100
F
CDECOUP
1
F
CDECOUP
1
F
UP
RLOAD
LOAD
SWITCH
CONTROL
1-0262
Figure 4. Ripple & Noise Characteristic with 6.2
amps resistive load @ 3.3 VIN/1.5 VOUT
Input/Output Ripple Performance
noise levels obtained using the circuit shown in Figure .
Nominal input and output voltages and a constant
ouput current were used during testing. All measure-
ments taken with setup shown in Figures and . the out-
put ripple voltage (top trace) is measured across the
output pins using a Lecroy AP 033 differential probe.
The input reflected ripple current (Bottom trace) is
measured with a Lecroy AP 015 current probe. The BW
limit is set to 25 MHz. The time base and amplitude
dividers settings are shown in their respective figures
1-0261
Figure 5. Ripple & Noise Characteristic with 6.2
amps resistive load @ 3.3 VIN/1.8 VOUT
TIME, t (1 s/div)
OUTPUT
V
O
LT
A
G
E,
V
O
(V)
(20
mV/div)
INPUT
CURRENT
,
II
(A)
(100
mA/div)
TIME, t (1 s/div)
OUTPUT
V
O
LT
A
GE,
V
O
(V)
(20
mV/div)
INPUT
CURRENT
,
II
(A)
(100
mA/div)
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