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LTC3553EUD-2#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36
LTC3553-2
7
35532f
V
BUS
Supply Current
vs Temperature
V
BUS
Supply Current
vs Temperature (Suspend Mode)
Battery Drain Current
vs Temperature
V
BUS
Current Limit
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise specifi ed.
Battery Drain Current
vs Temperature (Suspend Mode)
V
BUS
and Battery Current
vs Load Current
Battery Charge Current and
Voltage vs Time
R
ON
from V
BUS
to V
OUT
vs Temperature
Charge Current vs Temperature
(Thermal Regulation)
TEMPERATURE (°C)
–75
200
I
BUS
(µA)
300
350
400
–25
25
50 150
35532 G01
250
–50 0
75
100
125
V
BUS
= 5V
HPWR = L
TEMPERATURE (°C)
–75
0
I
BUS
(µA)
10
15
25
20
–25
25
50 150
35532 G02
5
–50 0
75
100
125
V
BUS
= 5V
TEMPERATURE (°C)
–75
0
I
BAT
(µA)
2
3
5
4
–25
25
50 150
35532 G04
1
–50 0
75
100
125
V
BUS
= 5V
V
BAT
= 3.8V
TEMPERATURE (°C)
–75
0
I
VBUS
(mA)
200
300
500
400
–25
25
50
35532 G05
100
–50 0
75
100
125
V
BUS
= 5V
HPWR = H
HPWR = L
LOAD CURRENT (mA)
0 100 300 500400200
–100
CURRENT (mA)
100
200
400
600
500
300
35532 G06
0
R
PROG
= 1.87k
I
VBUS
I
LOAD
I
BAT
(CHARGING)
I
BAT
(DISCHARGING)
TEMPERATURE (°C)
–75 –50 –25 25 50 75 100 1501250
0.20
R
ON
()
0.30
0.35
0.45
0.50
0.40
35532 G07
0.25
I
OUT
= 200mA
TEMPERATURE (°C)
–75
0
I
BAT
(mA)
160
240
480
400
320
–25
25
50 150
35532 G08
80
–50 0
75
100
125
V
BUS
= 5V
HPWR = H
R
PROG
= 1.87k
TIME (hour)
0
0
BATTERY CURRENT (mA)
VOLTAGE (V)
200
300
600
500
400
2
4
5
35532 G09
100
0
2
3
6
5
4
1
13
6
7
8
920mAhr CELL
V
BUS
= 5V
R
PROG
= 1.87k
CHRG
V
BAT
SAFETY TIMER
TERMINATION
C/10
I
BAT
TEMPERATURE (°C)
–50 –30 –10 30 50 70 90 13011010
0
BATTERY DRAIN CURRENT (µA)
4
6
10
18
16
14
12
8
35532 G03
2
BUCK AND LDO ON
V
BAT
= 3.8V
STBY = 3.8V
REGULATORS LOAD = 0mA
ONLY LDO ON
HARD RESET
LTC3553-2
8
35532f
TYPICAL PERFORMANCE CHARACTERISTICS
Battery Charge Current
vs Battery Voltage
Forward Voltage
vs Ideal Diode Current V
BUS
Connect Waveform V
BUS
Disconnect Waveform
V
FLOAT
Load Regulation
Battery Regulation (Float)
Voltage vs Temperature
T
A
= 25°C, unless otherwise specifi ed.
Oscillator Frequency
vs Temperature
Switching from Suspend Mode to
500mA Mode
Switching from 100mA Mode to
500mA Mode
I
BAT
(mA)
050
4.192
V
FLOAT
(V)
4.196
4.198
4.204
4.202
4.200
200150 250 350 450
400
35532 G10
4.194
100 300
V
BUS
= 5V
HPWR = H
TEMPERATURE (°C)
–75 –25–50
4.150
V
FLOAT
(V)
4.200
4.225
4.250
50
100
125
35532 G11
4.175
25075
V
BUS
= 5V
I
BAT
= 2mA
V
BAT
(V)
2 2.4 3.6 43.22.8
0
I
BAT
(mA)
200
300
500
400
35532 G12
100
4.4
V
BUS
= 5V
HPWR = H
R
PROG
= 1.87k
I
BAT
(mA)
0 400200
0
V
FWD
(mV)
100
150
250
300
200
1000 1200
35532 G13
50
800600
V
BUS
= 5V
V
BUS
= 0V
V
BAT
= 3.8V
I
LDO
= 100mA
I
BUCK
= 100mA
HPWR = HIGH
SUSP = LOW
STBY = LOW
20µs/DIV
5V
3.8V
BUCK (1.2V)
V
BUS
V
OUT
0V
35532 G14
LDO (3.3V)
V
BAT
= 3.8V
I
LDO
= 100mA
I
BUCK
= 100mA
HPWR = HIGH
SUSP = LOW
STBY = LOW
35532 G15
100µs/DIV
5V
3.8V
V
BUS
V
BUS
BUCK (1.2V)
V
OUT
V
OUT
0V
LDO (3.3V)
V
BAT
= 3.75V
I
OUT
= 50mA
R
PROG
= 2k
SUSP = LOW
35532 G16
1ms/DIV
5V
HPWR
0
0A
0A
I
BUS
0.5A/DIV
I
BAT
0.5A/DIV
V
BAT
= 3.75V
I
OUT
= 50mA
R
PROG
= 2k
HPWR = HIGH
35532 G17
1ms/DIV
5V
5V
SUSP
V
OUT
0
0
0A
0A
I
BUS
0.5A/DIV
I
BAT
0.5A/DIV
TEMPERATURE (°C)
–50 –30 –10 30 50 70 90 13011010
0.95
OSCILLATOR FREQUENCY (MHz)
1.05
1.10
1.20
1.30
1.25
1.15
35532 G18
1.00
2.7V
3.8V
5.5V
LTC3553-2
9
35532f
TYPICAL PERFORMANCE CHARACTERISTICS
Buck Regulator Burst Mode
®
Operation BVIN
Supply Current
Buck Regulator Standby Mode
BVIN
Supply Current
Buck Regulator 3.3V Output
Effi ciency vs Load
Buck Switching Regulator 1.8V
Output Effi ciency vs Load
T
A
= 25°C, unless otherwise specifi ed.
Buck Switching Regulator 2.5V
Output Effi ciency vs Load
Buck Regulator 1.2V Output
Effi ciency vs I
LOAD
Buck Regulator Short-Circuit
Current vs Temperature
Buck Regulator Output Transient
(STBY = High)
Buck Regulator Output Transient
(STBY = Low)
BUCK LOAD (mA)
0.01 0.1
0
EFFICIENCY (%)
70
100
1 10 100 1000
35532 G19
60
50
40
30
20
10
80
90
STBY = L
3.8V
5V
BUCK LOAD (mA)
EFFICIENCY (%)
35532 G21
0.01 0.1 100 1000101
0
20
30
80
40
50
60
90
100
70
10
STBY = L
3.8V
5V
BUCK LOAD (mA)
0.01 0.1
0
EFFICIENCY (%)
70
100
1 10 100 1000
35532 G22
60
50
40
30
20
10
80
90
STBY = L
3.8V
5V
BVIN SUPPLY VOLTAGE (V)
2.5 3 4 4.5 5.553.5
0
BVIN SUPPLY CURRENT (µA)
10
15
25
35
30
20
35532 G23
5
NO LOAD
STBY = L
–45°C
25°C
90°C
BVIN SUPPLY VOLTAGE (V)
2.5 3 4 4.5 5.553.5
0
BVIN SUPPLY CURRENT (µA)
1.0
1.5
2.5
3.0
2.0
35532 G24
0.5
NO LOAD
STBY = H
–45°C
25°C
90°C
TEMPERATURE (°C)
–75 –50 –25 25 50 75 100 1501250
400
SHORT CIRCUIT CURRENT (mA)
440
460
500
480
35532 G25
420
STBY = L
V
BUS
= 0V
V
BAT
= 3.8V
STBY = HIGH
V
OUT
50mV/DIV
(AC)
BUCK (1.2V)
10mV/DIV
(AC)
5mA
100µA
I
BUCK
35532 G26
50µs/DIV
V
BUS
= 0V
V
BAT
= 3.8V
STBY = LOW
BUCK (1.2V)
50mV/DIV
(AC)
V
OUT
50mV/DIV
(AC)
100mA
1mA
I
BUCK
35532 G27
100µs/DIV
BUCK LOAD (mA)
EFFICIENCY (%)
35532 G20
0.01 0.1 100 1000101
0
20
30
80
40
50
60
90
100
70
10
STBY = L
3.8V
5V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36

LTC3553EUD-2#PBF

Mfr. #:
Buy LTC3553EUD-2#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Micropower USB Power Manager with Li-Ion Charger, LDO, and Buck Regulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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