LTC3566-2_15 Datasheet, PDF (7/28 Pages) Linear Technology – High Efficiency USB Power Manager Plus 1A Buck-Boost Converter

LTC3566/LTC3566-2
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C unless otherwise noted.
V_BUS Quiescent Current vs V_BUS
Voltage (Suspend)
50
BAT = 3.8V
I_VOUT = 0mA
40
30
20
10
0
0
1
2
3
4
5
V_BUS VOLTAGE (V)
3566 G09
3.3V LDO Output Voltage vs Load
Current, V_BUS = 0V
3.4
BAT = 3.9V, 4.2V
BAT = 3.5V
BAT = 3.4V
BAT = 3.6V
3.2
3.0
2.8 ^{BAT = 3V}
BAT = 3.1V
BAT = 3.2V
2.6
0
BAT = 3.3V
5
10
15
20
25
LOAD CURRENT (mA)
3566 G12
Low-Battery (Instant-On) Output
Voltage vs Temperature
3.68
BAT = 2.7V
I_VOUT = 100mA
5x MODE
3.66
3.64
3.62
3.60
–40
–15 10
35
60
85
TEMPERATURE (°C)
3566 G15
Output Voltage
vs Load Current in Suspend
5.0
4.5
4.0
3.5
3.0 _{VBUS = 5V}
BAT = 3.3V
R_CLPROG = 3k
2.5
0
0.1 0.2 0.3 0.4 0.5
LOAD CURRENT (mA)
3566 G10
Battery Charge Current
vs Temperature
600
500
400
THERMAL REGULATION
300
200
100
R_PROG = 2k
10x MODE
0
–40 –20 0
20 40
60 80
TEMPERATURE (°C)
100 120
3566 G13
Oscillator Frequency
vs Temperature
2.6
2.4
BAT = 3.6V
V_BUS = 5V
V_BUS = 0V
2.2
2.0
1.8
–40
BAT = 3V
V_BUS = 0V
BAT = 2.7V
V_BUS = 0V
–15 10
35
60
85
TEMPERATURE (°C)
3566 G16
V_BUS Current
vs Load Current in Suspend
0.5
V_BUS = 5V
BAT = 3.3V
0.4 ^{RCLPROG = 3.01k}
0.3
0.2
0.1
0
0
0.1 0.2 0.3 0.4 0.5
LOAD CURRENT (mA)
3566 G11
Battery Charger Float Voltage
vs Temperature
4.21
4.20
4.19
4.18
4.17
–40
–15 10
35
60
85
TEMPERATURE (°C)
3566 G14
V_BUS Quiescent Current
vs Temperature
15
V_BUS = 5V
I_VOUT = 0μA
5x MODE
12
9
1x MODE
6
3
–40 –15
10
35
60
85
TEMPERATURE (°C)
3566 G17
3566fb
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