參數(shù)資料
型號(hào): PTH08T241WAZT
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源模塊
英文描述: 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝: ROHS COMPLIANT PACKAGE-11
文件頁數(shù): 35/39頁
文件大小: 1366K
代理商: PTH08T241WAZT
www.ti.com ................................................................................................................................................... SLTS264J – NOVEMBER 2005 – REVISED JUNE 2009
ELECTRICAL CHARACTERISTICS (continued)
PTH08T240W
TA = 25°C, VI = 5 V, VO = 3.3 V, CI = 220 F, CO = 220 F, and IO = IO max (unless otherwise stated)
PARAMETER
TEST CONDITIONS
PTH08T240W
UNIT
MIN
TYP
MAX
Nonceramic
220 (5)
CI
External input capacitance
F
Ceramic
22 (5)
Nonceramic
220 (6)
5000 (7)
Capacitance Value
F
w/o TurboTrans
Ceramic
500
Equivalent series resistance (non-ceramic)
7
m
CO
External output capacitance
see table
Capacitance Value
F
(6) (8)
w/ TurboTrans
Capacitance × ESR product (CO × ESR)
1000
10000 (8)
F×m
Per Telcordia SR-332, 50% stress,
MTBF
Reliability
6.1
106 Hr
TA = 40°C, ground benign
(5)
A 220 F electrolytic input capacitor is required for proper operation. The electrolytic capacitor must be rated for a minimum of 500 mA
rms of ripple current.
(6)
For VO ≤ 3.45V, a 220 F external output capacitor is required for basic operation. When VO > 3.45V the minimum output capacitance
increase to 330
F. The minimum output capacitance requirement increases when TurboTrans (TT) technology is utilized. See related
Application Information for more guidance.
(7)
This is the calculated maximum disregarding TurboTrans technology. When the TurboTrans feature is utilized, the minimum output
capacitance must be increased.
(8)
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 application notes for further guidance.
Copyright 2005–2009, Texas Instruments Incorporated
5
Product Folder Link(s): PTH08T240W PTH08T241W
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