Datasheet

LTC3675/LTC3675-1
12
36751fc
For more information www.linear.com/LTC3675
Typical perForMance characTerisTics
Buck-Boost Regulator Transient
Response (PWM Mode)
Buck-Boost Regulator No Load
Start-Up (PWM Mode)
Buck-Boost Regulator, Reduction
in Load Current Deliverability
Buck-Boost Regulator,
Efficiency vs Load
Buck-Boost Regulator,
Load Regulation
Buck-Boost Regulator,
Line Regulation
LOAD CURRENT (mA)
EFFICIENCY (%)
100
80
90
60
70
30
20
50
40
10
0
36751 G34
10 100 10001
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.6V
Burst Mode OPERATION
PWM MODE
LOAD CURRENT (mA)
V
OUT6
(V)
3.35
3.33
3.34
3.31
3.32
3.28
3.27
3.30
3.29
3.26
3.25
10010
36751 G35
10001
V
IN
= 4.2V
V
IN
= 2.7V
V
IN
= 3.6V
PWM MODE
V
IN
(V)
V
OUT6
(V)
3.40
3.36
3.38
3.32
3.34
3.26
3.24
3.30
3.28
3.22
3.20
5.13.1 3.5 3.9 4.3 4.7
36751 G36
5.52.7
PWM MODE
LOAD = 100mA
LOAD = 500mA
200µs/DIV
V
OUT6
200mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
LOAD STEP = 100mA to 600mA
V
IN
= 3.6V, V
OUT6
= 3.3V
36751 G37
100µs/DIV
V
OUT6
1V/DIV
INDUCTOR
CURRENT
500mA/DIV
EN6
2V/DIV
36751 G38
V
IN
= 3.6V
V
IN
(V)
REDUCTION BELOW 1A (mA)
400
300
350
200
250
50
150
100
0
3 3.3 3.6 3.9
36751 G39
4.22.7
PWM MODE
V
OUT6
= 3.3V