Datasheet

LTC4088
6
4088fb
Typical perForMance characTerisTics
T
A
= 25°C, unless otherwise noted.
Oscillator Frequency vs
Temperature
V
BUS
Quiescent Current vs
Temperature
Quiescent Current in Suspend vs
Temperature
Battery Charge Current vs
Temperature
Battery Charger Float Voltage vs
Temperature
Low-Battery (Instant-On) Output
Voltage vs Temperature
Output Voltage vs Output Current
in Suspend
V
BUS
Current vs Output Current in
Suspend
3.3V LDO Output Voltage
vs Load Current, V
BUS
= 0V
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
4.0
4.5
5.0
2
4088 G10
3.5
3.0
2.5
0.5
1
1.5
2.5
5x MODE
1x MODE
V
BUS
= 5V
V
BAT
= 3.3V
R
CLPROG
= 2.94k
OUTPUT LOAD CURRENT (mA)
0
V
BUS
CURRENT (mA)
1.5
2.0
2.5
2
4088 G11
1.0
0.5
0
0.5
1
1.5
2.5
5x MODE
1x MODE
V
BUS
= 5V
V
BAT
= 3.3V
R
CLPROG
= 2.94k
LOAD CURRENT (mA)
0
OUTPUT VOLTAGE (V)
3.0
3.2
20
4088 G12
2.8
2.6
5
10
15
25
3.4
V
BAT
= 3V
V
BAT
= 3.1V
V
BAT
= 3.2V
V
BAT
= 3.3V
V
BAT
= 3.6V
V
BAT
= 3.5V
V
BAT
= 3.4V
V
BAT
= 3.9V, 4.2V
TEMPERATURE (°C)
–40
0
CHARGE CURRENT (mA)
100
200
300
400
0 40
80
120
4088 G13
500
600
–20 20
60
100
THERMAL REGULATION
TEMPERATURE (°C)
–40
FLOAT VOLTAGE (V)
4.19
4.20
60
4088 G14
4.18
4.17
–15
10
35
85
4.21
TEMPERATURE (°C)
–40
OUTPUT VOLTAGE (V)
3.64
3.66
60
4088 G15
3.62
3.60
–15
10
35
85
3.68
V
BAT
= 2.7V
I
OUT
= 100mA
5x MODE
TEMPERATURE (°C)
–40
FREQUENCY (MHz)
2.25
2.30
2.35
60
4088 G16
2.20
2.15
2.10
–15
10
35
85
TEMPERATURE (°C)
–40
QUIESCENT CURRENT (mA)
9
12
60
4088 G17
6
3
–15
10
35
85
15
V
BUS
= 5V
I
OUT
= 0µA
5x MODE
1x MODE
TEMPERATURE (°C)
–40
34
QUIESCENT CURRENT (mA)
36
38
40
42
44
46
–15 10 35 60
4088 G18
85
V
BUS
= 5V
I
OUT
= 0mA
SUSP HI