LTC3553-2_15 Datasheet, PDF (11/36 Pages) Linear Technology – Micropower USB Power Manager with Li-Ion Charger, Always-On LDO and Buck Regulator

LTC3553-2
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C, unless otherwise specified.
LDO Dropout Voltage at
V_INLDO = 2.5V
300
–45°C
25°C
250
90°C
200
150
100
50
0
0 25 50 75 100 125 150
LDO LOAD (mA)
35532 G37
LDO Dropout Voltage at
V_INLDO = 1.8V
300
–45°C
25°C
250
90°C
200
150
LDO Output Transient
V_OUT
50mV/DIV
(AC)
LDO (3.3V)
100mV/DIV
(AC)
100
50
0
0
15
30
45
60
75
LDO LOAD (mA)
35532 G38
100mA
I_LDO
1mA
V_BUS = 0V
V_BAT = 3.8V
50μs/DIV
35532 G39
35532f
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