LM3503SQ-35/NOPB National Semiconductor, LM3503SQ-35/NOPB Datasheet - Page 9

• Manufacturer Part Number: LM3503SQ-35/NOPB
• Description: IC LED DRIVER WHTE BCKLGT 16-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Backlight, White LEDr

Specifications of LM3503SQ-35/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.2MHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Voltage - Output: 33 V ~ 34 V
• Mounting Type: Surface Mount
• Package / Case: 16-LLP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 750mA
• Internal Switch(s): Yes
• Efficiency: 80%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3503SQ-35; LM3503SQ-35NOPB; LM3503SQ-35NOPBTR; LM3503SQ-35NOPBTR; LM3503SQ-35TR

Typical Performance Characteristics
(See Typical Application Circuit : L=DO1608C-223 and
D=B150-13. Efficiency: η = P
/ P
= [(V
– V
) * I
] / [V
* I
]. T
= +25˚C, unless otherwise stated.)
OUT
IN
OUT
Fb
OUT
IN
IN
A
I
(Non-Switching) vs V
Switching Frequency vs Temperature
Q
IN
20128606
20128607
I
(Switching) vs V
I
(Switching) vs Temperature
Q
IN
Q
20128608
20128609
10 LED Efficiency vs LED Current
8 LED Efficiency vs LED Current
20128611
20128610
9
www.national.com