Datasheet

LTC3220/LTC3220-1
5
32201fc
1x Mode Switch Resistance
vs Temperature
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
1.5x Mode CPO Voltage vs I
CPO
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
2x Mode CPO Voltage vs I
CPO
Oscillator Frequency
vs V
IN
Voltage
V
IN
Shutdown Current
vs V
IN
Voltage
DV
CC
Current vs DV
CC
Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C unless otherwise noted.
TEMPERATURE (°C)
–40
SWITCH RESISTANCE (Ω)
0.45
0.50
0.55
5
125
3220 G04
0.40
0.35
0.30
–25 –10 20 35 50 65 80 95 110
0.60
0.65
0.70
0.75
0.80
V
IN
= 3.3V
V
IN
= 3.9V
V
IN
= 3.6V
TEMPERATURE (°C)
–40
2.5
OPEN-LOOP OUTPUT RESISTANCE (Ω)
2.7
2.9
3.1
3.3
3.5
3.9
4.1
4.3
4.5
–25 –10 5 6520 35 50 80 95 110
3220 G05
125
I
CPO
(mA)
0
3.6
CPO VOLTAGE (V)
3.8
4.0
4.2
4.4
4.8
3V
3.1V
3.3V
3.4V
3.6V
60
120 180 240
3220 G06
300 360
4.6
3.2V
3.5V
TEMPERATURE (°C)
–40
3.9
4.1
4.3
4.5
4.7
4.9
95
3220 G07
3.7
3.5
–25 –10 35205 50 65 80 110 125
3.3
3.1
2.9
OPEN-LOOP OUTPUT RESISTANCE (Ω)
I
CPO
(mA)
0
4.2
CPO VOLTAGE (V)
4.4
4.6
4.8
60
120
180 240
3220 G08
300
5.0
5.2
4.3
4.5
4.7
3V
4.9
5.1
360
3.1V
3.2V
3.3V-3.6V
V
IN
VOLTAGE (V)
2.9
FREQUENCY (kHz)
770
780
790
5.5
3220 G09
760
750
730
3.55
4.2
4.85
740
810
T
A
= 25°C
T
A
= 125°C
T
A
= –45°C
T
A
= 85°C
800
VOLTAGE (V)
2.9
1.5
V
IN
SHUTDOWN CURRENT (μA)
2.5
3.5
4.5
5.5
6.5
7.5
3.55 4.2 4.85 5.5
3220 G10
T
A
= 25°C
T
A
= 125°C
T
A
= 85°C
T
A
= –40°C
1x Mode No Load V
IN
Current
vs V
IN
Voltage
DV
CC
VOLTAGE (V)
1.5
0
DV
CC
CURRENT (μA)
0.5
1.0
1.5
2.0
2.5
3.0
2.5 3.5 4.5 5.5
3220 G11
RST = SDA = DV
CC
f
SCL
= 400kHz
f
SCL
= 10kHz
f
SCL
= 100kHz
V
IN
VOLTAGE (V)
2.9
580
V
IN
CURRENT (μA)
585
590
595
600
605
610
3.55 4.2 4.85 5.5
3220 G12