LTC3210
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
MODE
RESET
1X
1.5X
2X
CPO
1V/DIV
ENC
2V/DIV
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
3210 G01
250μs/DIV
3210 G02
500ns/DIV
3210 G03
2x CPO Ripple
V BAT = 3.6V
I CPO = 200mA
C CPO = 2.2μF
0.70
0.65
1x Mode Switch Resistance
vs Temperature
I CPO = 200mA
3.8
3.6
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(1.5V BAT – V CPO )/I CPO
V BAT = 3V
V CPO = 4.2V
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
3210 G04
0.45
2.6
0.40
–40
–15
10 35
TEMPERATURE (°C)
60
85
3210 G05
2.4
–40
–15
10 35
TEMPERATURE (°C)
60
85
3210 G06
V CPO = 4.8V
C2 = C3 = C4 = 2.2μF
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
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(2V BAT – V CPO )/I CPO
V BAT = 3V
–40 –15 10 35 60 85
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)
3210 G07
TEMPERATURE (°C)
3210 G08
LOAD CURRENT (mA)
3210 G09
3210fb
 
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