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| 型号： | PTH12040WAZ |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, DIP-20 |
| 文件页数： | 22/27页 |
| 文件大小： | 633K |
| 代理商： | PTH12040WAZ |
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SLTS237G – DECEMBER 2004 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TA = 25°C, VI = 12 V, VO = 3.3 V, CI = 1000 F, CO = 660 F, and IO = IOmax (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Nonceramic
660(9)
14000(10)
Capacitance value
F
CO
External output capacitance
Ceramic
400
Equivalent series resistance (non-ceramic)
2(11)
m
2.5
MTBF
Reliability
Per Bellcore TR-332 50% stress, TA = 40°C, ground benigh
106Hrs
(9)
A minimum value of output capacitance is required for proper operation. Adding additional capacitance at the load further improves
transient response.
(10) This is the calculated maximum. The minimum ESR requirement often results in a lower value. See the Application Information section
for further guidance.
(11) This is the typcial ESR for all the electrolytic (nonceramic) output capacitance. Use 4 m
as the minimum when using max-ESR values
to calculate.
4
Copyright 2004–2009, Texas Instruments Incorporated
Product Folder Link(s): PTH12040W
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