Datasheet

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SLOS390A – NOVEMBER 2001– REVISED MAY 2002
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5
TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
FIGURE
Efficiency vs Load resistance 2, 3
vs Supply voltage 4
r
DS
(
on
)
Drain-source on-state resistance
vs Free-air temperature 5
r
DS(on)
Drain source
on state
resistance
vs Free-air temperature 6
I
q
Supply current vs Switching frequency 7
PSRR Power supply rejection ratio vs Frequency 8, 9
I
O
Maximum out
p
ut current
vs Output voltage 10
I
O
Maximum output current
vs Ambient temperature 11
TEST SET-UP FOR GRAPHS
The LC output filter used in Figures 2, 3, 8, and 9 is shown below.
C1
C2
OUT+
OUT–
R
L
L1
L2
L1, L2 = 10 µH (part number: CDRH104R, manufacturer: Sumida)
C1, C2 = 10 µF (part number: ECJ-4YB1C106K, manufacturer: Panasonic)
Figure 1. LC Output Filter