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| LTC3203_15 Datasheet, PDF (4/16 Pages) Linear Technology – 500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps | |||
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LTC3203/LTC3203-1
LTC3203B/LTC3203B-1
TYPICAL PERFOR A CE CHARACTERISTICS
TA = 25°C, VIN = 3.6V, C1 = C2 = 2.2µF unless otherwise specified
VOUT vs Load Current
(4.5V Output Setting)
4.65
4.60
4.55
VIN = 3.6V
4.50
4.45
VIN = 3V
VIN = 2.7V
4.40
VIN = 3.3V
4.35
4.30
4.25
0
1.5x MODE
2x MODE
50 100 150 200 250 300 350 400 450 500
ILOAD (mA)
3203 G01
VOUT vs Load Current
(5V Output Setting)
5.5
5.3
5.1
VIN = 3V
4.9
4.7
VIN = 3.3V
4.5
4.3
VIN = 3.6V
VIN = 2.7V
4.1
3.9
3.7
3.5
0
1.5x MODE
2x MODE
50 100 150 200 250 300 350 400 450 500
ILOAD (mA)
3203 G02
VOUT vs Supply Voltage
(4.5V Output Setting)
4.8
ILOAD = 0mA
4.6
4.4
ILOAD = 500mA
4.2
ILOAD = 250mA
4.0
3.8
3.6
3.4
3.2
1.5x MODE
2x MODE
3.0
2.5 3 3.5 4 4.5 5 5.5
VIN (V)
3203 G03
4
VOUT vs Supply Voltage
(5V Output Setting)
5.4
5.2
ILOAD = 0mA
5.0
ILOAD = 500mA
4.8
ILOAD = 250mA
4.6
4.4
4.2
4.0
2.5 3
1.5x MODE
2x MODE
3.5 4 4.5
VIN (V)
5 5.5
3203 G04
Oscillator Frequency
vs Supply Voltage
1.4
1.2
2x MODE
1.0
1.5x MODE
0.8
0.6
0.4
0.2
0
2.5 3
3.5 4 4.5
VIN (V)
5 5.5
3203 G07
Open-Loop Output Resistance
vs Temperature
2.5
2x MODE
2.0
VIN = 2.7V
VOUT = 4.5V
1.5
1.5x MODE
1.0
VIN = 3.6V
VOUT = 4.5V
0.5
0
â40 â15 10
35
60
85
TEMPERATURE (°C)
3203 G06
Short-Circuit Current
vs Supply Voltage
1400
1200
1000
800
1.5x MODE
600
2x MODE
400
200
0
2.5 3
3.5 4 4.5
VIN (V)
5 5.5
3203 G08
32031fa
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