English
Language : 

LTC3201_15 Datasheet, PDF (3/8 Pages) Linear Technology – 100mA Ultralow Noise Charge Pump LED Supply with Output Current Adjust
◁
TYPICAL PERFOR A CE CHARACTERISTICS
LTC3201
Feedback Voltage vs Supply
Voltage
0.640 CFLY = CFILTER = O.22µF
0.635 CIN = COUT = 1µF
TA = 85°C
0.630
0.625
TA = 25°C
0.620
0.615
TA = –40°C
0.610
0.605
2.7
3.0 3.3 3.6 3.9 4.2 4.5
SUPPLY VOLTAGE (V)
3201 G01
Short-Circuit Current vs Supply
Voltage
250
CFLY = CFILTER = O.22µF
CIN = COUT = 1µF
200
TA = 25°C
150
100
50
0
2.7 3.0 3.3 3.6 3.9 4.2 4.5
SUPPLY VOLTAGE (V)
3201 G04
Output Voltage vs Load Current
4.15
CFLY = CFILTER = O.22µF
CIN = COUT = 1µF
4.10
TA = 25°C
4.05
VIN = 4.5V
4.00
3.95
3.90
VIN = 3.2V
3.85
3.80
0
VIN = 2.7V
20 40 60 80 100 120 140 160 180 200
LOAD CURRENT (mA)
3201 G02
Feedback Voltage
vs Supply Voltage
IOUT = 100mA, VOUT = 4V
0.620
0.615
CFLY = CFILTER = O.22µF
CIN = COUT = 1µF
TA = 25°C
0.610
0.605
0.600
0.595
0.590
2.7
3.0 3.3 3.6 3.9 4.2 4.5
SUPPLY VOLTAGE (V)
3201 G05
Oscillator Frequency vs Supply
Voltage
2.2
CFLY = CFILTER = O.22µF
CIN = COUT = 1µF
2.0 VOUT = 4V
TA = –40°C
TA = 25°C
1.8
1.6
TA = 85°C
1.4
1.2
2.7
3.0 3.3 3.6 3.9 4.2 4.5
SUPPLY VOLTAGE (V)
3201 G03
Feedback Voltage vs IOUT
0.64
CFLY = CFILTER = 0.22µF
0.62
CIN = COUT = 1µF
TA = 25°C
VIN = 3.6V
0.60
0.58
0.56
0.54
0.52
0.50
0 20 40 60 80 100 120 140 160 180 200 220
IOUT (mA)
3201 G06
3201f
3
 ▷