sc604a Semtech Corporation, sc604a Datasheet - Page 8

• Manufacturer Part Number: sc604a
• Description: Sc604a Low-noise, High-efficiency Regulated White Led Driver
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
2005 Semtech Corp.
100
110
100
90
80
70
60
50
40
90
80
70
60
50
4.2
4.2
4.1
4.1
Battery Current Comparison for 4 LEDs at 15mA Each with LED = 3.5V
Efficiency Comparison for 4 LEDs with 15mA Each and LED = 3.5V
4.0
4.0
3.9
3.9
Competition 1.5x mode
Semtech 1x mode
Semtech 1x mode
Competition 1.5x mode
90% of Li-Ion battery life
90% of Li-Ion battery life
3.8
3.8
VIN [V]
VIN [V]
8
3.7
3.7
3.6
3.6
3.5
3.5
Semtech 1.5x mode
Semtech 1.5x mode
3.4
3.4
www.semtech.com
SC604A
3.3
3.3
3.2
3.2