Datasheet
LTC3566/LTC3566-2
6
3566fb
FORWARD VOLTAGE (V)
0
CURRENT (A)
0.6
0.8
1.0
0.16
3566 G01
0.4
0.2
0
0.04
0.08
0.12
0.20
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
EXTERNAL VISHAY
Si2333 PMOS
INTERNAL IDEAL
DIODE ONLY
V
BUS
= 0V
V
BUS
= 5V
BATTERY VOLTAGE (V)
2.7
RESISTANCE (Ω)
0.15
0.20
0.25
3.9
3566 G02
0.10
0.05
0
3.0
3.3
3.6
4.2
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
EXTERNAL VISHAY
Si2333 PMOS
INTERNAL IDEAL
DIODE
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
4.00
4.25
4.50
800
3566 G03
3.75
3.50
3.25
200
400
600
1000
BAT = 4V
BAT = 3.4V
V
BUS
= 5V
5x MODE
BATTERY VOLTAGE (V)
2.7
500
600
700
3.9
3566 G04
400
300
3.0 3.3 3.6 4.2
200
100
0
CHARGE CURRENT (mA)
V
BUS
= 5V
R
PROG
= 1k
R
CLPROG
= 3k
LTC3566
5x USB SETTING,
BATTERY CHARGER SET FOR 1A
LTC3566-2
BATTERY VOLTAGE (V)
2.7
0
CHARGE CURRENT (mA)
25
50
75
100
125
150
3.0 3.3 3.6 3.9
3566 G05
4.2
LTC3566
1x USB SETTING,
BATTERY CHARGER SET FOR 1A
V
BUS
= 5V
R
PROG
= 1k
R
CLPROG
= 3k
LTC3566-2
BATTERY VOLTAGE (V)
2.7
BATTERY CURRENT (μA)
15
20
25
3.9
3566 G06
10
5
0
3.0
3.3
3.6
4.2
V
BUS
= 0V
V
BUS
= 5V
(SUSPEND MODE)
I
VOUT
= 0μA
OUTPUT CURRENT (A)
0.01
40
EFFICIENCY (%)
50
60
70
80
100
0.1 1
3566 G07
90
5x, 10x MODE
1x MODE
BAT = 3.8V
BATTERY VOLTAGE (V)
2.7
EFFICIENCY (%)
80
90
100
3.9
3566 G08
70
60
3.0
3.3
3.6
4.2
1x CHARGING EFFICIENCY
5x CHARGING EFFICIENCY
R
CLPROG
= 3k
R
PROG
= 1k
I
VOUT
= 0mA
LTC3566-2
TYPICAL PERFORMANCE CHARACTERISTICS
Ideal Diode V-I Characteristics
Ideal Diode Resistance
vs Battery Voltage
Output Voltage vs Output Current
(Battery Charger Disabled)
USB Limited Battery Charge
Current vs Battery Voltage
USB Limited Battery Charge
Current vs Battery Voltage
Battery Drain Current
vs Battery Voltage
PowerPath Switching Regulator
Effi ciency vs Output Current
Battery Charging Effi ciency vs
Battery Voltage with No External
Load (P
BAT
/P
BUS
)
T
A
= 25°C unless otherwise noted.
OUTPUT CURRENT (A)
0
2.0
2.5
4.0
3.5
3.0
0.4
3566 G31
1.5
1.0
0.1 0.2 0.3 0.5 0.6 0.7 0.8
0.5
0
–0.5
0.8
1.0
1.6
1.4
1.2
0.6
0.4
0.2
0
–0.2
OUTPUT VOLTAGE (V)
BATTERY CURRENT (A)
V
BUS
= 5V
V
BAT
= 3V
R
CLPROG
= 3.01k
R
PROG
= 2k
I
BAT
, LTC3566
I
BAT
, LTC3566-2
V
OUT
, LTC3566
V
OUT
, LTC3566-2
Output Current vs Output Voltage
(Battery Charger Enabled)
5x Mode (i.e. 500mA)