LTC3210-1
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise stated.
Dropout Time from Shutdown
Dropout Time When Enabled
1.5x CPO Ripple
CPO
1V/DIV
EN
2V/DIV
5.1V
MODE
RESET
1X
1.5X
2X
CPO
1V/DIV
ENC
2V/DIV
5.1V
MODE
RESET
1X
1.5X
2X
V CPO
50mV/DIV
AC-
COUPLED
V BAT = 3.6V
I CPO = 200mA
C CPO = 2.2μF
ENM = HIGH
500μs/DIV
32101 G01
250μs/DIV
32101 G02
500ns/DIV
32101 G03
V BAT = 3V
2xCPORipple
V BAT = 3.6V
I CPO = 200mA
C CPO = 2.2μF
0.70
0.65
1x Mode Switch Resistance
vs Temperature
I CPO = 200mA
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(1.5V BAT – V CPO )/I CPO
3.8
V CPO = 4.2V
3.6 C2 = C3 = C4 = 2.2μF
V CPO
20mV/DIV
AC-
COUPLED
0.60
0.55
V BAT = 3.3V
V BAT = 3.6V
3.4
3.2
3.0
0.50
V BAT = 3.9V
2.8
500ns/DIV
32101 G04
0.45
2.6
0.40
–40
–15
10
35
60
85
2.4
–40
–15
10
35
60
85
TEMPERATURE (°C)
32101 G05
TEMPERATURE (?C)
32101 G06
V BAT = 3V
4.8
4.6
4.4
4.2
4.0
3.8
3.6
1.5x Mode CPO Voltage
vs Load Current
C2 = C3 = C4 = 2.2μF
V BAT = 3.3V
V BAT = 3.4V
V BAT = 3.5V
V BAT = 3.6V
V BAT = 3.2V
V BAT = 3.1V
V BAT = 3V
0 100 200 300 400 500
LOAD CURRENT (mA)
32101 G07
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(2V BAT – V CPO )/I CPO
4.6
V CPO = 4.8V
4.4 C2 = C3 = C4 = 2.2μF
4.2
4.0
3.8
3.6
3.4
3.2
–40 –15 10 35 60 85
TEMPERATURE (?C)
32101 G08
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
2x Mode CPO Voltage
vs Load Current
C2 = C3 = C4 = 2.2μF
V BAT = 3.6V
V BAT = 3.5V
V BAT = 3.4V
V BAT = 3.3V
V BAT = 3.2V
V BAT = 3.1V
V BAT = 3V
0 100 200 300 400 500
LOAD CURRENT (mA)
32101 G09
32101fd
 
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