SGM3141 Datasheet, PDF (6/14 Pages) SG Micro Corp – Charge Pump LED Driver

SGM3141
700mA Buck/Boost
Charge Pump LED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
CIN = 10μF, CF = 1μF, COUT = 4.7μF, 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 600mA V_F = 3.42V
0 ^{Flash 700mA VF = 3.53V}
3
3.2 3.4 3.6 3.8
4
4.2
Input Voltage (V)
1600
1400
1200
1000
800
600
400
200
0
3
Battery Current vs. Input Voltage
Flash 700mA V_F = 3.53V
Torch 200mA V_F = 3.06V
3.2 3.4 3.6 3.8
4
4.2
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
Output Current vs. Input Voltage
800
700
600
500 _{Torch 150mA VF = 2.96V Torch 200mA VF = 3.06V}
400
Flash 300mA V_F = 3.15V Flash 600mA V_F = 3.42V
Flash 700mA V_F = 3.53V
300
200
100
3
3.2 3.4 3.6 3.8
4
4.2
Input Voltage (V)
6