Datasheet

PTH08T220W , PTH08T221W
www.ti.com ................................................................................................................................................... SLTS252K – NOVEMBER 2005 – REVISED JUNE 2009
ELECTRICAL CHARACTERISTICS
PTH08T221W (ceramic capacitors) (continued)
T
A
= 25 ° C, V
I
= 5 V, V
O
= 3.3 V, C
I
= 300 µ F ceramic, C
O
= 300 µ F ceramic, and I
O
= I
O
max (unless otherwise stated)
PARAMETER TEST CONDITIONS PTH08T221W UNIT
MIN TYP MAX
w/o TurboTrans Capacitance Value Ceramic 300
(6)
3000
(7)
µ F
see table
C
O
External output capacitance Capacitance Value 5000 µ F
(6)
w/ TurboTrans
Capacitance × ESR product (C
O
× ESR) 100 1000 µ F × m Ω
Per Telcordia SR-332, 50% stress,
MTBF Reliability 6.1
10
6
Hr
T
A
= 40 ° C, ground benign
(6) A minimum of 300 µ F ceramic external output capacitance is required for basic operation. The minimum output capacitance requirement
increases when TurboTrans™ (TT) technology is utilized. See related Application Information section for more guidance.
(7) This is the calculated maximum disregarding TurboTrans™ technology.
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