Zxld1371, Typical characteristics, A product line of diodes incorporated – Diodes ZXLD1371 User Manual
Page 11: Buck mode – r
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ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
11 of 42
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics –
Buck Mode – R
S
=150m
Ω - L = 33µH – I
LED
= 1.45A
0
100
200
300
600
700
LE
D
C
U
R
R
EN
T
(A
)
400
5
10
15
20
25
30
35
40
INPUT VOLTAGE (V)
1 LED
10
20
25
30
1 ~ 16 LEDs
T = 25°C,
V
L = 33µH, R = 150m
C
= 100µF
A
AUX,
S
IN
V
=
IN
Ω
2 LEDs
3 LEDs
4 LEDs
6 LEDs
5 LEDs
8 LEDs
10 LEDs
16 LEDs
12 LEDs
14 LEDs
5
10
55
60
15
20
25
30
45
50
35
40
V (V)
IN
1000
900
100
0
800
700
300
200
600
500
400
SW
IT
C
H
IN
G F
R
E
Q
U
E
N
C
Y
(k
H
z)
5
10
15
20
25
30
35
40
45
50
55
60
100
E
F
F
IC
IE
N
C
Y
(
%
)
V (V)
IN
95
90
85
80
75
70
65
60
3 LEDs
1 LED
5 LEDs
2 LEDs
4 LEDs
6 LEDs
8 LEDs
10 LEDs
14 LEDs
16 LEDs
12 LEDs
T = 25°C,
V
L = 33µH, R = 150m
C
= 100µF
A
AUX,
S
IN
V
=
IN
Ω
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