Zxld1371, Typical characteristics – Diodes ZXLD1371 User Manual
Page 10

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
10 of 42
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics –
Buck Mode – R
S
= 75m
Ω – L = 33µH – I
LED
= 2.9A
2.6
2.7
2.8
2.9
3.0
3.1
3.2
5
10
15
20
25
30
35
40
INPUT VOLTAGE (V)
L
E
D C
URRENT
(
A
)
0
100
200
300
500
600
700
5
10
15
20
25
30
35
40
INPUT VOLTAGE (V)
1 LED
3 LEDs
2 LEDs
4 LEDs
SW
IT
CH
ING F
R
EQUENCY (
k
Hz
)
T = 25°C, V
= V
L = 15µH, R = 75m
C
= 100µF, V
= 3.8V
A
AUX
IN
S
IN LED
Ω
4 LEDs
L = 22µH
400
5
10
15
20
25
30
35
40
INPUT VOLTAGE (V)
0
100
300
500
600
700
EF
F
IC
IE
N
C
Y
(%
)
400
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