Diodes ZXLD1371 - Manual (Page 18)

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
18 of 42
www.diodes.com
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Buck-Boost Mode – R
S
= 150m Ω - I
LED
= 350mA – GI
RATIO
= 0.23
5 6 9 14 15 18 8 12 16 17 13 10 11 7
LE
D
C
U
R
R
E
N
T
(A
)
0.450
0.425
0.400
0.375
0.325
0.300
0.275
0.250
0.350
L = 33µH
L = 68µH
T = 25°C, V = V ,
5 LEDs, R = 150m
C = 100µF
A IN AUX
S
IN
Ω
Ω, Ω R9 = 120k R10 = 36k
5 6 9 14 15 18 8 12 16 17 13 10 11 7
0
100
200
300
400
500
L = 100µH
SW
IT
C
H
IN
G
F
R
E
Q
U
EN
C
Y
(
k
H
z)
600
L = 33µH
T = 25°C, V = V ,
5 LEDs, R = 150m
C = 100µF
A IN AUX
S
IN
Ω
Ω, Ω R9 = 120k R10 = 36k
5 6 9 14 15 18 8 12 16 17 13 10 11 7
90
E
F
F
IC
IE
N
C
Y
%
40
85
45
80
50
75
55
70
60
65
L = 100µH
L = 68µH