LTC4040_15 Datasheet, PDF (9/26 Pages) Linear Technology – 2.5A Battery Backup Power Manager

LTC4040
Typical Performance Characteristics T_A = 25°C, unless otherwise noted.
Backup Boost Transient
Response to Load Step
5.3
7
V_BAT = 3.6V
5.2
C_SYS = 100µF ₆
L = 2.2µH
5.1
5
V_SYS
5.0
4
4.9
3
I_SYS
4.8
2
4.7
1
4.6
–0.4 0.0
0.4 0.8
TIME (ms)
0
1.2 1.6
4040 G23
Burst Mode to Constant Frequency
Mode Transition Waveform
5.3
7
V_BAT = 3.6V
5.2
C_SYS = 100µF
L = 2.2µH
6
5.1
5
V_SYS
5.0
4
4.9
3
4.8
I_SYS
2
4.7
1
4.6
–0.4 0.0
0.4 0.8
TIME (ms)
0
1.2
1.6
4040 G24
OVP Module Shutdown Voltage
(Through 6.2k) vs Temperature
6.50
6.45
6.40
6.35
6.30
6.25
6.20
–45
–10 25
60
95 130
TEMPERATURE (°C)
4040 G25
OVSNS Pin Quiescent Current
vs Temperature
50
INPUT = 5V
45
40
35
30
–45
–10 25
60
95 130
TEMPERATURE (°C)
4040 G26
For more information www.linear.com/LTC4040
4040fa
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