SGM3140 Datasheet, PDF (6/14 Pages) SG Micro Corp – Charge Pump LED Driver

SGM3140
500mA Buck/Boost
Charge Pump LED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
CIN = 10μF, COUT = 4.7μF, CF = 1μF, unless otherwise noted.
Efficiency vs. Input Voltage
100
80
60
40
20 ^{Torch 150mA VF = 2.96V Torch 200mA VF = 3.06V}
Flash 300mA V_F = 3.15V Flash 500mA VF = 3.33V
0
3
3.2 3.4 3.6 3.8
4
4.2
Input Voltage (V)
1200
Battery Current vs. Input Voltage
1000
800
Flash 500mA V_F = 3.33V
600
400
Torch 160mA V_F = 3.01V
200
0
2.7
3
3.3
3.6
3.9
4.2
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
Output Current vs. Input Voltage
600
500
400
300
200
100 ^{Torch 150mA VF = 2.96V Torch 200mA VF = 3.06V}
Flash 300mA V_F = 3.15V Flash 500mA V_F = 3.33V
0
2.7
3
3.3
3.6
3.9
4.2
Input Voltage (V)
6