Datasheet

TPS2500, TPS2501
www.ti.com SLVS886C –OCTOBER 2008–REVISED AUGUST 2010
ADDITIONAL DESIGN EXAMPLE
Specific Application Examples
The Table 4 outlines several specific applications and component recommendations for the given electrical
specifications.
Table 4. Component Recommendations
Application Example Electrical Specifications Component Values
# of AUX
V
IN
min V
IN
max I
AUX
max I
USB
max I
TOTAL
Inductor C
IN
C
AUX
C
USB
Description USB Load R
ILIM
(kΩ)
(V) (V) (mA) (mA) (mA) (mH) (mF)
(1)
(mF)
(1)
(mF)
(2)
Ports (mA)
Single-cell
lithium ion
1 100 2.7 4.2 100 550 650 3.3 10 22 150 30.9
battery or
3.3-V bus
Single-cell
lithium ion
2 0 2.7 4.2 0 1100 1100 2.2 10 22 150 18.2
battery or
3.3-V bus
Two-cell NiMH
1 0 1.8 2.4 0 550 550 2.2 10 22 150 35.7
battery
Single-cell
lithium ion
2 0 2.7 5.25 0 1100 1100 2.2 10 22 150 18.2
battery ORed
with 5-V bus
Single-cell
lithium ion
1 200 2.7 5.25 200 550 750 3.3 10 22 150 26.1
battery ORed
with 5-V bus
(1) Use low-ESR, X5R or X7R ceramic capacitors.
(2) Not required for operation, only required to meet USB 2.0 standard
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