LM3502ITL-16 NSC [National Semiconductor], LM3502ITL-16 Datasheet - Page 9

• Manufacturer Part Number: LM3502ITL-16
• Description: Step-Up Converter for White LED Applications
• Manufacturer: NSC [National Semiconductor]

Typical Performance Characteristics
Efficiency: η = P
10 LED Efficiency vs LED Current
OUT
I
Q
I
(Non-Switching) vs V
/P
Q
IN
(Switching) vs V
= [(V
OUT
– V
Fb
IN
) * I
IN
OUT
]/[V
20131711
20131709
20131707
IN
* I
IN
]. T
A
= 25˚C, unless otherwise stated.)
( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3.
9
Switching Frequency vs Temperature
8 LED Efficiency vs LED Current
I
Q
(Switching) vs Temperature
20131710
20131712
20131708
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