A Product Line of
Diodes Incorporated
ZXLD1371
Typical Characteristics – Buck-Boost Mode – R S = 150m ? - I LED = 350mA – GI RATIO = 0.23
0.450
0.425
5 LEDs
6 LEDs
0.400
2 LEDs
0.375
0.350
0.325
0.300
1 LED
7 LEDs
8 LEDs
3 LEDs
4 LEDs
0.275
9 LEDs
T A = 25°C, L = 33μH,
Rs = 150m Ω, R9 = 120k Ω,
R10 = 36k Ω, V AUX =V IN
0.250
5
8
11
14
17
20
900
800
700
600
500
400
300
200
100
0
5
8
14
17
20
V IN (V)
90
85
80
6 LEDs
75
9 LEDs
5 LEDs
4 LEDs 3 LEDs
2 LEDs
70
8 LEDs
R10 = 36k Ω, V AUX IN
65
60
55
50
45
7 LEDs
1 LED
T A = 25°C, L = 33μH,
Rs = 150m Ω, R9 = 120k Ω,
=V
40
5
8
11
14
17
20
ZXLD1371
Document number: DS35436 Rev. 1 - 2
16 of 42
www.diodes.com
February 2012
? Diodes Incorporated
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