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參數資料
| 型號： | NCP1523 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 6-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans |
| 中文描述： | 6甲，2.2 V至5.5 V輸入，非隔離，寬輸出，可調電源模塊的TurboTrans |
| 文件頁數： | 5/35頁 |
| 文件大小： | 1128K |
| 代理商： | NCP1523 |
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PTH04T230W, PTH04T231W
SLTS271A–SEPTEMBER 2006–REVISED OCTOBER 2006
ELECTRICAL CHARACTERISTICS (continued)
PTH04T230W
T
=25
°
C, V
= 5 V, V
O
= 3.3 V, C
I
= 330 μF, C
O
1 = 100 μF ceramic, C
O
2 = 150 μF non-ceramic, and I
O
= I
O
max (unless
otherwise stated)
PARAMETER
TEST CONDITIONS
PTH04T230W
UNIT
MIN
TYP
MAX
C
I
External input capacitance
330
(6)
μF
Nonceramic
150
(7)
5000
(8)
Capacitance value
μF
without
TurboTrans
Ceramic
100
(7)
500
Equivalent series resistance (non-ceramic)
7
m
C
O
External output capacitance
see table
5,000
Capacitance value
μ
F
with
Turbotrans
(9)
Capacitance
×
ESR product (C
O
×
ESR)
1000
10,000
μ
F
×
m
Per Telcordia SR-332, 50% stress,
T
A
= 40
°
C, ground benign
MTBF
Reliability
5.3
10
6
Hr
(6)
A 330 μF input capacitor is required for proper operation. The capacitor must be rated for a minimum of 400 mA rms of ripple current.
An additional 22-
μ
F ceramic input capacitor is recommended to reduce rms ripple current.
100 μF ceramic and 150 μF non-ceramic external output capacitance is required for basic operation. The minimum output capacitance
requirement increases when
TurboTrans
(TT) technology is used. See the Application Information for more guidance.
This is the calculated maximum disregarding
TurboTrans
technology. When the
TurboTrans
feature is used, the minimum output
capacitance must be increased. See the
TurboTrans
application notes for further guidance.
When using
TurboTrans
technology, a minimum value of output capacitance is required for proper operation. Additionally, low ESR
capacitors are required for proper operation. See the
TurboTrans
application notes for further guidance.
(10) This is the calaculated maximum when using the
TurboTrans
feature. Additionally, low ESR capacitors are required for proper operation.
See the
TurboTrans
application notes for further guidance.
(7)
(8)
(9)
5
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