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LTC3550EDHC-1#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LTC3550-1
7
35501f
TEMPERATURE (°C)
–50 –25
V
UV
(V)
05025
75
100
3550-1 G19
4.25
4.20
4.15
4.10
4.05
4.00
3.95
3.90
3.85
DCIN UVLO
USBIN UVLO
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Undervoltage Lockout Threshold
vs Temperature
Recharge Threshold Voltage
vs Temperature
Buck Regulator Effi ciency vs V
CC
Charge Current During Turn-On
and Turn-Off
TEMPERATURE (°C)
–50
V
OUT
(V)
1.85
1.86
1.87
1.88
1.90
1.89
1.91
1.84
25 75
–25 0
50 100 125
3550-1 G25
V
CC
= 3.6V
I
OUT
= 100mA
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
25 75
–25 0
50 100 125
V
CC
= 3.6V
3550-1 G26
TEMPERATURE (°C)
–50 –25 0 5025
75
100
V
RECHRG
(V)
4.16
4.14
4.12
4.10
4.08
4.06
4.04
3550-1 G20
V
DCIN
= V
USBIN
= 4.3V
V
DCIN
= V
USBIN
= 8V
TEMPERATURE (°C)
–50
I
BAT
(µA)
5
4
3
2
1
0
–1
–25
02550
3550-1 G21
75 100
V
BAT
= 4.2V
V
DCIN
, V
USBIN
(NOT CONNECTED)
3550-1 G22
V
DCIN
= 5V
R
IDC
= 1.25k
100µs/DIV
I
BAT
500mA/DIV
ENABLE
5V/DIV
V
CC
(V)
2
FREQUENCY (MHz)
1.8
1.7
1.6
1.5
1.4
1.3
1.2
34 56
3550-1 G27
Buck Regulator Output Voltage
vs Temperature
Battery Drain Current
vs Temperature
Buck Regulator Effi ciency
vs Output Current
Oscillator Frequency
vs Temperature Oscillator Frequency vs V
CC
T
A
= 25°C, unless otherwise noted.
V
CC
(V)
2
70
EFFICIENCY (%)
75
80
85
90
95
100
3456
35501 G23
I
OUT
= 100mA
I
OUT
= 10mA
I
OUT
= 600mA
I
LOAD
(mA)
0.1
50
EFFICIENCY (%)
70
100
101 100 1000
35501 G24
60
80
90
V
CC
= 2.7V
V
CC
= 4.2V
V
CC
= 3.6V
LTC3550-1
8
35501f
SW
5V/DIV
V
OUT
20mV/DIV
I
L
200mA/DIV
4µs/DIV
V
CC
= 3.6V
I
LOAD
= 10mA
35501 G35
I
LOAD
(mA)
0
V
OUT
(V)
500200 300 400 600 800100
1.90
1.89
1.88
1.87
1.86
1.85
35501 G28
900700
V
CC
= 3.6V
V
CC
(V)
10
0.4
0.5
0.7
46
3550-1 G29
0.3
0.2
23
57
0.1
0
0.6
R
DS(ON)
(Ω)
MAIN
SWITCH
SYNCHRONOUS
SWITCH
T
A
= 25°C
TEMPERATURE (°C)
–50
0.4
0.5
0.7
25 75
3550-1 G30
0.3
0.2
–25 0
50 100 125
0.1
0
0.6
R
DS(ON)
(Ω)
MAIN SWITCH
SYNCHRONOUS SWITCH
V
CC
= 2.7V
V
CC
= 3.6V
V
CC
= 4.2V
V
CC
(V)
2
0
SUPPLY CURRENT (µA)
5
15
20
25
50
35
3
4
3550-1 G31
10
40
45
30
5
6
V
OUT
= 1.875V
I
LOAD
= 0A
TEMPERATURE (°C)
–50
0
SUPPLY CURRENT (µA)
5
15
20
25
50
35
0
50
75
3550-1 G32
10
40
45
30
–25
25
100
125
V
CC
= 3.6V
V
OUT
= 1.875V
I
LOAD
= 0A
TEMPERATURE (°C)
–50
SWITCH LEAKAGE (nA)
200
250
300
25 75
3550-1 G33
150
100
–25 0
50 100 125
50
0
V
CC
= 5.5V
RUN = 0V
MAIN SWITCH
SYNCHRONOUS SWITCH
V
CC
(V)
0
0
SWITCH LEAKAGE (pA)
20
40
60
80
120
1
234
3550-1 G34
56
100
RUN = 0V
SYNCHRONOUS
SWITCH
MAIN
SWITCH
Buck Regulator Output Voltage
vs Load Current
R
DS(ON)
vs V
CC
Buck Regulator Switches R
DS(ON)
vs Temperature
Buck Regulator Supply
Current vs V
CC
Buck Regulator Supply Current
vs Temperature
Switch Leakage Current
vs Temperature
Switch Leakage Current vs V
CC
Burst Mode Operation
TYPICAL PERFOR A CE CHARACTERISTICS
UW
T
A
= 25°C, unless otherwise noted.
LTC3550-1
9
35501f
RUN
2V/DIV
V
OUT
1V/DIV
I
L
500mA/DIV
40µs/DIV
V
CC
= 3.6V
I
LOAD
= 600mA
35501 G36
Start-Up from Shutdown
Load Step
Load Step
Load Step
Load Step
TYPICAL PERFOR A CE CHARACTERISTICS
UW
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
20µs/DIVV
CC
= 3.6V
I
LOAD
= 0mA TO 600mA
35501 G37
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
20µs/DIVV
CC
= 3.6V
I
LOAD
= 50mA TO 600mA
35501 G38
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
20µs/DIVV
CC
= 3.6V
I
LOAD
= 100mA TO 600mA
35501 G39
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
20µs/DIVV
CC
= 3.6V
I
LOAD
= 200mA TO 600mA
35501 G40
T
A
= 25°C, unless otherwise noted.
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LTC3550EDHC-1#PBF

Mfr. #:
Buy LTC3550EDHC-1#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Dual Input USB/AC Adapter Li-Ion Battery Charger w/ 600mA Buck Converter
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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