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LTC4040 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC4040
Description  2.5A Battery Backup Power Manager
Download  26 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4040 Datasheet(HTML) 8 Page - Linear Technology

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LTC4040
8
4040fa
For more information www.linear.com/LTC4040
VBAT = 3.2V
VBAT = 3.7V
VBAT = 4.1V
LOAD CURRENT (mA)
1
10
100
1k
3k
0
10
20
30
40
50
60
70
80
90
100
vs Load Current
Backup Boost Efficiency
4040 G19
VSYS SET TO 5V
130°C
90°C
25°C
–10°C
60°C
–45°C
VSYS (V)
3.5
3.8
4.1
4.4
4.7
5.0
50
60
70
80
90
100
110
vs VSYS over Temperature
Backup Boost NMOS RDS(ON)
4040 G20
130°C
90°C
60°C
25°C
–10°C
–45°C
VSYS (V)
3.5
3.8
4.1
4.4
4.7
5.0
50
60
70
80
90
100
110
vs VSYS over Temperature
Backup Boost PMOS RDS(ON)
4040 G21
VBAT = 4.1V
VBAT = 3.6V
VBAT = 2.7V
TEMPERATURE (°C)
–45
–10
25
60
95
130
25
30
35
40
45
IBATQ vs Temperature
SLEEP Mode (Backup)
4040 G22
Typical perForMance characTerisTics T
A = 25°C, unless otherwise noted.
VSYS = Set to 5V
VBAT = 3.6V
ISYS = 1mA
TEMPERATURE (°C)
–45
–10
25
60
95
130
4.50
4.60
4.70
4.80
4.90
5.00
5.10
(VSYS) vs Temperature
Back–Up Boost Output Voltage
4040 G16
VSYS = 5V
VBAT = 4.1V
VBAT = 3.6V
VBAT = 2.7V
TEMPERATURE (°C)
–45
–10
25
60
95
130
0.90
0.95
1.00
1.05
1.10
1.15
Frequency vs Temperature
Backup Boost Oscillator
4040 G17
VBAT = 3.6V
TEMPERATURE (°C)
–45
–10
25
60
95
130
80
82
84
86
88
90
Duty Cycle vs Temperature
Backup Boost Maximum
4040 G18
Back-Up Boost Output Voltage
(VSYS) vs Temperature
Backup Boost Oscillator
Frequency vs Temperature
Backup Boost Maximum
Duty Cycle vs Temperature
Backup Boost Efficiency
vs Load Current
Backup Boost NMOS On-Resistance
vs VSYS over Temperature
Backup Boost PMOS On-Resistance
vs VSYS over Temperature
SLEEP Mode (Backup)
IBATQ vs Temperature


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